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Xerox Claims Printable Electronics Breakthrough

adeelarshad82 writes "Xerox announced a new silver ink that it's calling a breakthrough in printable electronics, a leading-edge concept that's generated a lot of discussion but few actual products to date. Why? Precisely because of the issues that Xerox claims to have addressed. In concept, printable electronics is just what it sounds like: using a printer, basically an inkjet, to print electronic circuits. If this can be done reliably, electronic devices can be printed for far less than current methods cost. One can also print the devices on a variety of new materials. The possibilities range from printing on flexible plastic, to paper and cardboard, to fabric."

166 comments

  1. Interesting by Paradyme · · Score: 5, Interesting

    So, how long till people start downloading designs to print them out at home?

    1. Re:Interesting by ColdWetDog · · Score: 5, Interesting

      Well that would be a great system, especially for DIY and prototype circuits. No more etch and hassling with masks. The FA is pretty light on details (which appears to be official Slashdot policy these days) and so I don't understand where the 'components' come from. Do you just glue your IC down to the paper / plastic / textile base or does this create the components de novo (rather unlikely for complicated things like an IC, but conceivable for resistors, caps, etc.)?

      Might change the definition of an 'underwire bra' significantly.

      --
      Faster! Faster! Faster would be better!
    2. Re:Interesting by lightinthedark · · Score: 1

      Not very once the ink's affordable. And why shouldn't we? It'll make "Learn electronics" books so much easier to publish, and maybe lower the barriers to a whole new generation of hardware hackers. Woo freedom :-)

    3. Re:Interesting by Fotograf · · Score: 1

      what it would change from PCB on demand services where i can order anything for few euros?

      --
      God's gift to chicks
    4. Re:Interesting by frozentier · · Score: 2, Insightful

      THAT is exactly the point, IMO. We're at the threshold of not only being able do download pirated software, but ALSO being able to download the hardware to run it on.

    5. Re:Interesting by rohan972 · · Score: 1

      what it would change from PCB on demand services where i can order anything for few euros?

      The ability to easily design and produce your own in secret.

    6. Re:Interesting by Bakkster · · Score: 4, Interesting

      The article only mentions a reduction in silver ink printing temperature allowing for printing on plastics and cardboard, as well as functioning well in open air without being a clean room environment. That tells me it's primarily a PWB printer, no mention of semiconductors for ICs. Of course, it's possible, with enough resolution, to print a resistor or capacitor. However, I believe this technology will just produce the conductors, allowing you to solder any components (hopefully it is able to be soldered to) needed.

      My question is if they can make multiple layer circuits. This should be pretty easy, just print a layer of insulator on top, with holes for any connections between layers. Also curious what their resolution and tolerances are. Obviously this isn't going to go into high-performance industrial applications any time soon, but if it's possible to make reasonable reliable circuits with tolerances to the mil (0.001"), DIYers will be able to make (and pay for!) circuits they never dreamed of doing before.

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    7. Re:Interesting by Bakkster · · Score: 1

      what it would change from PCB on demand services where i can order anything for few euros?

      The ability to easily design and produce your own in secret.

      More importantly, PCB on-demand services produce in the standard way, requiring mechanical routing on a large copper-plated board. There's a big setup cost, especially with drilling and tooling. Most PCB builders have a minimum order because of this.

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    8. Re:Interesting by Bakkster · · Score: 2, Informative

      Replying to myself, I know, but this link states Xerox already has printable semiconductors and dielectrics. This breakthrough was for printable conductors of the same quality, meaning that the entire circuit could be printed: conductors, transistors, diodes, resistors, capacitors, inductors. The only additional components that would be needed would be those that require specialized materials (LEDs, for example).

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    9. Re:Interesting by mcgrew · · Score: 2, Interesting

      I'm guessing it will be a while; most new tech is pretty expensive. The original IBM PC was four or five thousand dollars, laser printers likewise were very high priced. I doubt these things will be affordable to normal people at first. It sounds more complex than a simple inkjet -- it has to melt silver, and somehow does it so you can print melted silver on plastic without melting the plastic. And previous printers needed a clean room to do it, this new tech doesn't.

      But I could be wrong. TFA says the main use will be printing RFID tags, and that it will bring the price of RFID tags down from a dollar each to a penny each.

    10. Re:Interesting by Anonymous Coward · · Score: 0

      I am so eager waiting to download my first video camera... not!

    11. Re:Interesting by Anonymous Coward · · Score: 0

      Now the MPAA is going to be really pissed, not only will we be able to pirate DVDs, we'll also be pirating the circuit boards used in the DVD players to play those DVDs...

    12. Re:Interesting by chadplusplus · · Score: 1

      My question is: just how low did they lower the melting point of this "ink"? And wouldn't a relatively low melting point make this technology inapplicable to or problematic for any situation where the components got hot - like, oh, any situation involving transistors or processors, which is probably 90% or more of the circuit boards out there?

    13. Re:Interesting by Bat+Country · · Score: 2, Interesting

      Speed and turnaround. If this was cheaply available to a home user or at least enthusiastic hobbyist (less cheap, more involved) you could still roll out a prototype and test with a turnaround of a few dozen a day. Further, you could continue reducing the design until you found the smallest space necessary without risking as much money. By its nature, it's most likely quite a bit cheaper once broadly available than PCB services given the difference in the quantity and toxicity of materials. No toxic waste disposal, no huge waste of copper, no supply chain for PCB stock, just some card stock or plastic and some magic xerox ink.

      Also, these circuits are flexible. What's the value of flexibility? It increases the durability and portability of your finished product. The deal with printed circuits as well is not to make a PCB where you solder parts onto it. The idea is to actually print the entire circuit onto the material and offload anything which requires soldered components onto the portion of the product which is not required to be flexible. That being said, anything you can lay into silicon which doesn't require exotic materials or nanoscale electromechanical properties can be printed onto any slightly heat-tolerant substrate with this technology. This could include printing a transistor radio into cotton, printing RFID tags directly onto luggage tags (imagine if the airline couldn't misplace your luggage because the luggage cart itself knew what it was supposed to be carrying), a home hobbyist printing out addon chips for their retro hardware (NES in mixed stereo anyone?), printing out a better antenna for your laptop's wifi, printing new control wires onto the back of an e-ink display (say, from Esquire)...

      All of this is a way off of course, as they're still talking about printing a molten silver compound onto materials, which doesn't strike me as being the sort of task a home laser printer would be up for, not the least of which would be that it'd completely screw up the duplexer and probably the developer drum. Of course, Xerox developing this ink with a low melting point and reliable crystallization patterns (from TFA) may result in some other breakthroughs whereby this comes home a lot faster. All they need is to find a low-resistance nonmagnetic alloy or conductive polymer which melts at laser printing temperatures and won't gunk up a developer unit. (which may be unobtainium.) Either that or a working material which can be applied by inkjet printers.

      --
      The land shall stone them with the bread of his son.
    14. Re:Interesting by Bat+Country · · Score: 1

      It sounds like they're either using some sort of self-arranging alloy or a crystallizing compound which contains silver. FTFA:

      The ink has also been reformulated so that the molecules precisely align themselves in the best configuration to conduct electricity.

      It's a sure bet they're not actually melting silver, again FTFA:

      According to Xerox, one of the key benefits of its technology is that it can print with silver ink at a much lower temperature than competing technologies...

      You can't lower the melting point of a metal while still keeping it conductive without alloying it with something else (as in Field's metal) or by coming up with a compound which is still a semiconductor, and by their description, sounds as if it crystallizes in such a way that the magnetic poles of its molecules are aligned.

      Unless my bare-minimum physics and chemistry educations have failed me, which I fail to consider unlikely.

      --
      The land shall stone them with the bread of his son.
    15. Re:Interesting by Trahloc · · Score: 1

      I'm sure those points were addressed. I can't imagine them going "Look we got the melting point low enough to print!!! ..... but it melts into slag when you turn it on for more than 10 seconds."

      --
      The Goal: A long simple life filled with many complex toys.
    16. Re:Interesting by Creepy · · Score: 1

      Prototyping was the first thing that popped into my head, but my brother, a chip designer, said to me once that most electronic circuits don't scale well (e.g. inductance may cause to much line noise), so prototyping may be limited. Not sure how you would do feedthroughs, either (seems like you'd still need to solder), so probably best for simple circuits like the mentioned RFID tags.

    17. Re:Interesting by Bakkster · · Score: 1

      It isn't mentioned if the printing temperature is the same as the melting temperature. I'm assuming that the ink undergoes a chemical reaction after printing so that the printing temperature is lower than the melting point.

      As you say, though, it's pretty safe to assume this is not going to produce circuitry for high temperature environments. However, being able to print low-temperature low-power boards is certainly useful. This technology isn't a catch-all that will replace standard PWBs, but for some applications it's just what the doctor (engineer?) ordered.

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      Write your representatives! Repeal the 2nd Law of Thermodynamics!
    18. Re:Interesting by easyTree · · Score: 1

      So, how long till people start downloading designs to print them out at home?

      Not much longer, hopefully. IIRC, the reprap project is working on this for reprap version two - which seems to be much closer to release than last time I looked...

    19. Re:Interesting by easyTree · · Score: 1

      Bah; Ima print out a cyborg which will hunt down RIAA executives and drag them to mcdonalds for a lifetime of compensatory slavery / idling.

    20. Re:Interesting by ChrisMaple · · Score: 1

      Copper and silver electrically conductive paints have been available for decades. One of the keys to their success is to keep them from forming oxides and suphides, which don't conduct very well. Another is to get the small pieces of metal to touch each other. Neither requirement involves melting the conductors or forming a low melting point alloy. As you mention, it sounds like Xerox has invented a formulation that allows the particles to align in an optimum manner (and that this is compatible with some form of inkjet printing.)

      --
      Contribute to civilization: ari.aynrand.org/donate
  2. Finally by srussia · · Score: 3, Funny

    I can replace my racks with a three-ring binder!

    --
    Set your phasers on "funky"!
    1. Re:Finally by cjfs · · Score: 1

      I can replace my racks with a three-ring binder!

      It would seem viable until you realize that $99 printer has $4999.99 cartridges and the first one only comes 1% full.

    2. Re:Finally by noundi · · Score: 4, Funny

      I can replace my racks with a three-ring binder!

      It would seem viable until you realize that $99 printer has $4999.99 cartridges and the first one only comes 1% full.

      I'm not expecting anything else.

      --
      I am the lawn!
    3. Re:Finally by commodore64_love · · Score: 4, Insightful

      Wow. That HP ink costs 70 times more than crude oil. This is why I bought a laserprinter rather than an inkjet. The initial cost is high, but the ink is your typical photocopier toner, and can last 5000 or more pages. After you pass the first 800 pages the laserprinter is actually cheaper overall.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    4. Re:Finally by Anonymous Coward · · Score: 0

      And the best part about it is? Do you know what ink-jet ink is made of?

      1. Water
      2. Plant Derivatives
      3. Fungicide

      If you looked at the value of the end product versus the inputs, it would be just as impressive. We're talking about margins which would resemble someone selling a $6,000 hamburger.

      Expect the same thing from printable circuits. Xerox found some novel way to bind conductive materials to a porous surface; what it's made of will be nowhere near what they can (and will) charge for it.

    5. Re:Finally by Anonymous Coward · · Score: 0

      And it'll still work after not having printed anything for three months...

    6. Re:Finally by zippthorne · · Score: 3, Interesting

      Lots of stuff costs 70x more than crude oil. What was surprising about that link was that HP ink costs twice as much as human blood.

      --
      Can you be Even More Awesome?!
    7. Re:Finally by Anonymous Coward · · Score: 0

      If HP ink costs 70x more than crude oil AND twice as much as human blood
      AND lots of stuff costs 70x more than crude oil
      then lots of stuff costs twice as much as human blood.

    8. Re:Finally by Anonymous Coward · · Score: 0

      Thank you for saving me the trouble of posting that.

    9. Re:Finally by toilettext · · Score: 1

      Why does it say paper jam when there is no paper jam? PC Load Letter? What the f*** is PC Load Letter?

    10. Re:Finally by toilettext · · Score: 1

      Just in time for halloween...the printer you can use to make nano-scale silver bullets to kill very tiny vampires.

    11. Re:Finally by Mister+Whirly · · Score: 1

      Sure, but you can't snort ink.

      --
      "But this one goes to 11!"
    12. Re:Finally by Anomalyst · · Score: 1

      Just in time for halloween...the printer you can use to make nano-scale silver bullets to kill very tiny vampires.

      I thought that was werewolves.

      --
      There is no right to feel safe thru security vaudeville at the expense of everyone's freedom, privacy and tax money.
    13. Re:Finally by zippthorne · · Score: 1

      Go to your grocery store or pharmacy and look at the prices of things. 70x the price of crude works out to ~$1 per oz. Toothpaste costs more than that. Hell, cereal is only a third of that.

      It is surprising, I think, to find that blood is less expensive than grape nuts, in addition to finding that printer ink should be more valuable than vital liquids.

      Assuming the graph is correct, of course. I'm just commenting on someone else's graph. My back-of-the-envelope calculation of HP 15 ink comes to a factor of about 2500.

      --
      Can you be Even More Awesome?!
    14. Re:Finally by MobyDisk · · Score: 1

      So we need to either :
      - Package human blood into ink cartridges.
      - Genetically create an animal that excretes HP ink.

    15. Re:Finally by Anonymous Coward · · Score: 0

      Why on earth is anyone surprised that human blood is cheap? Fer chrisakes, people give it away for FREE! The only real cost is collecting and storing it.

      Heh, the captcha for this post is "coronary".

    16. Re:Finally by Zerth · · Score: 1

      Actually, I'm suprised that blood costs more than the 3M coolant.

      I was given to understand that my employer would forcibly repossess a volume of blood equal to the coolant I spilled if I ever did it again:)

    17. Re:Finally by infinite9 · · Score: 1

      I bought an HP 4100. I had to replace much of the maintenance items (my fault for not paying attention at purchase time), but even with all of that, I'll probably have $200 in it. One toner cartridge good for 30,000 pages. It comes with network support. XP talks to it without stupid drivers or software. And it's fast.

      I also have an HP Laserjet 3. It's slow, but indestructible. And the price was right. It was free.

      I'll never buy a new consumer grade printer again. It's ex-office printers for me from now on... in 10 years when I finally need to replace my printer.

      --
      Disconnect your television. Do your own research. Draw your own conclusions. They're probably lying. Don't be a sheep.
    18. Re:Finally by sbeckstead · · Score: 1

      Bottled water is 5x more expensive than Gasoline.

    19. Re:Finally by sbeckstead · · Score: 1

      You can too, it just looks silly and won't do the same thing as other snortable items.

    20. Re:Finally by sbeckstead · · Score: 1

      Paper jam is the little bits of paper left over that gets stuck in between all the guides that paper goes through. it is smelly and viscous like jam hence the name. PC Load Letter is the guy that allows you to load your PC onto the truck.

    21. Re:Finally by sbeckstead · · Score: 1

      If printed correctly you can kill them with a paper cut!

    22. Re:Finally by sbeckstead · · Score: 1

      depends on the Universe.

    23. Re:Finally by garynuman · · Score: 1

      yeah, but it may be totally worth it though, 'cause the way i see it this just takes me one step closer to achieving my lifelong dream of living to see the premise of "weird science" become technically possible, sooo awesome...

    24. Re:Finally by PipsqueakOnAP133 · · Score: 1

      On the upside, that becomes a wash when you find out that ink thinned with alcohol works much better than blood thinned with alcohol :)

  3. Digital Signatures and e-Commerce by simoncpu+was+here · · Score: 3, Interesting

    I think it would be great if we can attach an electronic version of a printed document so that we can verify its authenticity using digital signatures.

    1. Re:Digital Signatures and e-Commerce by whatajoke · · Score: 3, Insightful

      You can encode the document and its signature into a barcode. And you can do it today, very cheaply.

    2. Re:Digital Signatures and e-Commerce by Anonymous Coward · · Score: 0

      Yeah, but my WiFi toaster doesn't read barcodes. And it wont make toast unless it gets Wired.

    3. Re:Digital Signatures and e-Commerce by maxwell+demon · · Score: 1

      Yeah, but my WiFi toaster doesn't read barcodes. And it wont make toast unless it gets Wired.

      You mean, your toaster needs an internet connection where wired.com isn't blocked?

      --
      The Tao of math: The numbers you can count are not the real numbers.
    4. Re:Digital Signatures and e-Commerce by MrMista_B · · Score: 1

      You forget that the digital version would probably be easier to fake. :)

  4. The death of photography makes it possible by Kupfernigk · · Score: 3, Interesting

    Until the end of the 20th century, a major market for silver was photography. The digital camera and the inkjet printer have slowly destroyed that market and replaced it with digital imaging. Now there's a new use for the silver which, presumably, had digital imaging not come along would have been much more expensive. (Although color photography ends up more or less silver free and there was considerable recycling, there was still a steady consumption of silver, and as the photography market democratised, the amount of silver in use at a given time was steadily increasing.)

    --
    From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
    1. Re:The death of photography makes it possible by tacarat · · Score: 2, Insightful

      So, possibly time to start investing in silver? If they use it as stated, a lot of silver may bet get dumped into landfills as part of trash packaging.

      --
      "Common sense will be the death of us all"
    2. Re:The death of photography makes it possible by Anonymous Coward · · Score: 0

      there are other bigger reasons for investing in silver but yes, I hope this reason will just add to the upward push of the price of silver

    3. Re:The death of photography makes it possible by cbope · · Score: 1

      I think by photography, you mean photographic film and traditional photographic paper printing. Photography itself is far from dead and in fact is probably much stronger than it ever was thanks to digital cameras. I would bet that the number of photos taken by the average person with a digital camera is 20-50x what is was during the film days, thanks to the fact that you do not pay for each frame as in the film days. I know that personally my number of shots per year has gone from a few hundreds to many thousands of frames per year. People today take more pictures than ever before.

    4. Re:The death of photography makes it possible by MrMr · · Score: 2, Interesting

      Investing in silver? Why does that ring a bell?

    5. Re:The death of photography makes it possible by Trepidity · · Score: 1

      This seems like kind of a non sequitur. All he said was: photography used to be a major market for silver, but digital cameras and inkjet have destroyed that part of the silver market, since digital cameras and inkjets do not require silver.

    6. Re:The death of photography makes it possible by commodore64_love · · Score: 1

      >>>I think by photography, you mean photographic film

      Well since you were nitpicking the original author's choice of words, then I will be nitpicky too. A digital image is not really a photograph ("light written" i.e. on paper). It still captures light, but it is not done on paper, but instead by a charge-coupled device (CCD). A digital image is a photoelectronic, not a photographic, and thus the OP was correct when he called the photograph a dead or dying art, which frees silver for use in other applications.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    7. Re:The death of photography makes it possible by tacarat · · Score: 1

      Buy low, sell before investigated?

      --
      "Common sense will be the death of us all"
    8. Re:The death of photography makes it possible by noidentity · · Score: 3, Funny

      Until the end of the 20th century, a major market for silver was photography. The digital camera and the inkjet printer have slowly destroyed that market and replaced it with digital imaging.

      Yeah, thankfully we don't have to use silver ink in our inkjet printers. That would make the ink refills really expensive. Oh, wait...

    9. Re:The death of photography makes it possible by BetterSense · · Score: 1

      Watch this very cool old Kodak informational video (think "How it's Made" c.1950). They literally pull up train cars full of silver bars and unload them into the factory on conveyer belts.

      httphttp://photo.net/film-and-processing-forum/00Sg0n://photo.net/film-and-processing-forum/00Sg0n

      That market has diminished drastically. You are right that "photography as a whole" is doing fine if we are agreeing that both silver-based imaging and digital imaging are both "photography". There's a lot of wanking over the word, which is mostly based on lay people's failure to understand the fundamental differences between them, and practitioners of both getting irritated at same.

      Although there is no doubt that optical/chemical photography has declined drastically in popularity, digital has not, in principle, affected it. It's just that more people choose to use digital now that the option exists. Wet process photography is by no means obsolete or dead, just less popular. If you want to do real live chemical photography, nothing really has changed, except there are better photographic materials available now than ever in history. And nothing stops you from using a hybrid approach, shooting film and digitally printing, or capturing digitally and printing to silver paper. I don't find it worthwhile to ponder the meaning of "photography" so long as we agree what a "photograph" is, and digital images are not photographs.

      Every now and then I hear some hipster say something like "photography is easier now that we have digital". That's like saying "horseback riding is so much easier now that we have cars". What he really means is "instead of doing wet process photography I can now do digital imaging instead which is so much easier". But that's not 'making photography easier' because photography proper, that is, optical printing of persistent images directly onto surfaces, is still done about the same has it was 100 years ago, except as already mentioned, we are spoiled with extremely high performance films and papers. Lay people don't realize that digital was a whole new and different medium coming up, and instead, from their perspective, they think that digital imaging is an evolution of the photographic process, rendering optical/chemical "<no qualification> photography" obsolete, when in fact, it is untouched and marching along on its own still, and better than ever. People still ride horses, and people still make <no qualifier> photographs, and the invention of cars and digital imaging don't really change the craft itself.

    10. Re:The death of photography makes it possible by BetterSense · · Score: 1

      In fact, inkjet printing, between the photopaper and expensive inks is much more expensive per-area than traditional photographic printing even with the recent price increases for darkroom materials. It may still end up cheaper overall though, because editing in digital-land is done on the computer instead of on paper. In the darkroom, Ctrl-Z takes the form of a trash bin.

    11. Re:The death of photography makes it possible by LWATCDR · · Score: 1

      Using a digital camera technical isn't the process of photography. It is the still the art of photography but not the process.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    12. Re:The death of photography makes it possible by sbeckstead · · Score: 1

      they think that digital imaging is an evolution of the photographic process

      When they cease to call them graphics cards and stop using the term computer graphics you may indeed have a complaint. The art of designing and taking a "photograph" has moved from simply the optical/chemical world to the digital world of computer graphics. The definition of "graphic" itself is highly motile and depends on the context of the conversation. Graphic language simply means highly descriptive and not really to be spoken. Graphic Arts now uses computers along with everything else in the tool box. I agree with "Using a digital camera technically isn't the process of photography. It is the still the art of photography but not the process" and would have to be convinced otherwise. Art always transcends process and the end result is often the same regardless of process. So the statement:

      digital imaging is an evolution of the art of photography

      "Graph derived from the greek graphos meaning "to draw"
      no material is given and no medium is specified.

    13. Re:The death of photography makes it possible by BetterSense · · Score: 1

      I agree that digital imaging is an evolution of art. It is obviously a great and impactful, important, brand new, and very powerful evolution of visual art and imaging. It is also fundamentally different than silver halide and other optically direct photographic imaging processes, which were previously collectively known as "photography". Now the difficulty is that it is not in English distinguished, as it deserves to be, from these old and different media.

      I don't intend to argue about word definitions; my point is ONLY to highlight that digital imaging represents a FORK of photographic art, and does not now constitute, in itself, photographic art, despite its commercial dominance. It adds to and complements direct optical processes rather than superseding, overtaking, substituting for, deprecating, or obsoleting them. Optical processes are still in use, still beautiful, and better than they have ever been, and still expensive, slow, and arguably difficult to learn, and commercially impractical.

      It's not that before, we had film/paper, and now we have digital instead. Rather, now we have BOTH film/paper AND digital. The two are different, fundamentally and superficially; as different to me as painting is to drawing, say. It's entirely unprofitable to ponder which is 'better'.

      Thank God that we have digital now, and don't have to print everything with process cameras, optical lithography, and darkrooms. But if one wants to create original cyanotypes, silver prints, color slides--things that for over a hundred years were known simply as photographs--digital imaging is completely irrelevant to that goal, because it is just a different medium. You can't paint a picture with an essay or sculpt a musical score with a chisel, nor can you create photographs (by the old definition) with matrices of numbers.

    14. Re:The death of photography makes it possible by treeves · · Score: 1

      Your "i.e." is incorrect. Written does not mean "on paper". It could be on "stone" (silicon, etc.) e.g. lithography.

      --
      ...the future crusty old bastards are already drinking the Kool-Aid.
    15. Re:The death of photography makes it possible by Anonymous Coward · · Score: 0

      He also said that new markets are developing for silver, possibly as a consequence of its being cheaper now.

      I think he was wrong though, because apparently the parent to your post takes so many pictures on his own that the silver demand stayed the same.

    16. Re:The death of photography makes it possible by sbeckstead · · Score: 1

      Fair enough!

    17. Re:The death of photography makes it possible by ChrisMaple · · Score: 1

      My price comparisons between photo-inkjet and home-darkroom color photography have always indicated that the home-darkroom was cheaper only if I used the cheapest available materials (Besseler and Mitsubishi, no Kodak or Fujifilm) and if I made no mistakes requiring reprints. It also required that I count my labor as worthless, because color darkroom printing is much slower than most inkjet photoprinters. In any case, the price difference is not large and you're doing something wrong if it exceds 2:1 in either direction.

      --
      Contribute to civilization: ari.aynrand.org/donate
    18. Re:The death of photography makes it possible by Anonymous Coward · · Score: 0

      photography dead?... how about a silver bullet for your head? FILM FOREVER!!!

  5. Oh I can't wait. by mirix · · Score: 1

    Electronics are going to be even more of a pain in the ass to service.

    I can't see it being terribly reliable either.

    --
    Sent from my PDP-11
    1. Re:Oh I can't wait. by sarahbau · · Score: 1

      Why service it when you can just reprint it for pennies?

    2. Re:Oh I can't wait. by ztransform · · Score: 3, Informative

      Electronics are going to be even more of a pain ... to service.

      I was under the assumption that with today's 7 layer PCBs and bewildering array of surface mount components (and not just the resisters, the ICs too) that the days of servicing electronics was long gone.

      My Canon G7 died slightly over a year after purchase in that it simply wouldn't power up any more. The cost of servicing exceeded the value of the camera.

    3. Re:Oh I can't wait. by mirix · · Score: 2, Insightful

      The bulk of servicing cost is labour, and when you're doing the labour, fixing stuff can still be cheaper. ;-)

      Not just servicing, but hacking and such is going to be a lot more of a pain if the traces vaporize when you look at them sideways.

      I'm not sure what this is marketed as, for prototyping? Fast prototypes would be nice. But the vast majority of electronics are mass produced stuff, where the physical cost of the PCB is a small portion of the overall circuitry, with components, labour, and R&D being the real cost. I can't see printing traces of silver being cheaper than the existing methods. Maybe I'm missing something.

      --
      Sent from my PDP-11
    4. Re:Oh I can't wait. by cbope · · Score: 2, Insightful

      Any electronics device *can* be serviced or repaired. The issue is cost and difficulty of the repair itself. In many cases it is simply too difficult to replace a failed component or too costly. In your camera example, it could be a component buried deep inside the camera on a small PCB which is not easily accessible. It may take a technician an hour or more to disassemble the camera into a few hundred pieces to get access to the failed component. That is certainly a more expensive operation than replacement of the device.

      As a result, many electronic devices made today are effectively disposable. The cost involved to fix them just isn't justified. As an EE, I do try to repair my own devices if they are out of warranty coverage, but sometimes the effort required is just not worth it. It's far easier and cheaper to replace in many cases.

    5. Re:Oh I can't wait. by Alioth · · Score: 4, Informative

      It's not multilayer PCBs and SMD that makes electronics uneconomical to repair, it's the purchase price of a new article that does it. In the past, if your television failed, you got it repaired - because in 1979, a colour TV cost (in 2009 money) over £1000. Having a technician charge you £150 in today's money was worth it.

      But when a digital camera costs £150, it's not worth spending £150 to get someone to fix it.

      Surface mount components aren't all that difficult to rework with practise. Today, many electronics hobbyists work with SMD, personally I've made my own boards with 0.4mm pitch (that's 0.2mm between the pins) LQFPs, and 0603 chip capacitors/resistors etc (about 1/10th of the size of a grain of rice). Many hobbyists are working with leadless QFNs, and some masochists are using 0201 components (2/1000in by 1/1000th in). (For me 0603 is fine, it's small enough to be able to put where I need them, yet large enough I can assemble a board without a magnifying glass).

      Printable PCBs would be the holy grail for homebrew PCBs. We've got close - some people have modified printers to print etch resist directly onto copper clad board, which you can then etch. The rest of us typcially use iron-on toner transfer (shiny paper through a laser printer, then ironed onto copper board with a clothes iron) or UV photo exposure methods.

    6. Re:Oh I can't wait. by Anonymous Coward · · Score: 0

      Why service it when you can just reprint it for pennies?

      It won't be that easy.

    7. Re:Oh I can't wait. by xonen · · Score: 2, Informative

      As a result, many electronic devices made today are effectively disposable. The cost involved to fix them just isn't justified. As an EE, I do try to repair my own devices if they are out of warranty coverage, but sometimes the effort required is just not worth it. It's far easier and cheaper to replace in many cases.

      This i where our current (capatalist) system failes. (Not blaming capitalism per sé btw, but it has influenced our pricing and thinking). The reason repairs are not worth the trouble are basically because manufacturing does not take in account _all_ costs, both money-wise and 'virtual' - like environmental cost.

      Any idea how much CO2 was used producing a digital camera? You'd be surprised. Or how much toxic waste was produced manufacturing those electronics? How much people died in mines (or have their life shortened) mining the minerals? Repairing to expensive: It's because you compare US/European wages to Chinese or Taiwanese wages. ''Disassemble to 100 components''-> that's obviously a case of bad design where maintenance/repair was not being taken into consideration.

      The situation not only holds for electronics. Take cars for example, cars that are 'total loss' here in the west, because repairs outcost the value of a 2nd hand car.. This same car, once driven to Afrika (Marocco for example) can live another 10-15 years with ease. Simply because of the difference in price of labour vs materials. (Not that that is always best for environment...)

      Repairs not being economically feasable is much more of a choice, than a necessaty. Guess the situation only will be turned once we either run out of resources either have to pay for all real cost including environmental and eliminating differences in hourly labor costs worldwide.

      --
      A glitch a day keeps the bugs away.
    8. Re:Oh I can't wait. by rohan972 · · Score: 1

      I'm not sure what this is marketed as, for prototyping? Fast prototypes would be nice. But the vast majority of electronics are mass produced stuff, where the physical cost of the PCB is a small portion of the overall circuitry, with components, labour, and R&D being the real cost. I can't see printing traces of silver being cheaper than the existing methods. Maybe I'm missing something.

      The ability of individual operators to perform their own R&D. Such operators could also choose to share their results over the internet licensed for others to modify and distribute under similar terms to the various FOSS licenses. Essentially it is just like every other advance of technology that has put abilities that used to be the sole preserve of companies with big budgets into the hands of the individual.

      Personally this is what I see as the potential: that productive capacity will be more in the hands of the individual and small business. Large corporations will always have some functions, but economic power and therefore political power can be distributed more evenly in the population, ie: the middle class. There are always influences centralising power and decentralising power, this can be one of the decentralising influences.

    9. Re:Oh I can't wait. by Bakkster · · Score: 1

      Components are easy to replace on a PWB, at least the first few times until the pads start to lift. I have done rework on 0402 package (0.04" x 0.02") resistors and capacitors using a hand soldering iron. Even finer and larger components can be repaired with a rework station, using hot air to reflow the solder and suction cups to place/remove components. Of course, this is made simple due to the solder mask, which keeps the solder on the pads and pulls the components with it.

      That said, if the PWB itself fails (most likely due to a pad snapping off from rework, maybe through a crack from being flexed and temperature cycled) it's rarely economical to repair. We're talking thicknesses around 0.002-0.008", and the copper and laminates have been baked together. I have never heard of a PWB being repaired by fixing an internal connection.

      And if you think today's PWBs are only 7 layers, you're off by a factor of 3-4x.

      --
      Write your representatives! Repeal the 2nd Law of Thermodynamics!
    10. Re:Oh I can't wait. by jimicus · · Score: 1

      I'm not sure what this is marketed as, for prototyping? Fast prototypes would be nice. But the vast majority of electronics are mass produced stuff, where the physical cost of the PCB is a small portion of the overall circuitry, with components, labour, and R&D being the real cost. I can't see printing traces of silver being cheaper than the existing methods. Maybe I'm missing something.

      If it could be so much faster and cheaper to create a prototype, the barrier to entry for companies seeking to build a particular piece of electronic equipment would drop drastically. Right now you have to pay a hardware designer a lot of money, you have to minimise the number of prototypes you order because each one costs an arm and a leg and takes some time to produce. There's a reason why there are relatively few companies that do anything more sophisticated than silkscreen their name onto a reference design for a board these days.

    11. Re:Oh I can't wait. by KlaymenDK · · Score: 1

      Well you could, you know, remove said electronics from said ass before servicing. Just a thought...

    12. Re:Oh I can't wait. by Wargames · · Score: 1

      I see non-functioning fully intact big screen tv's on the side of the road all the time and think to myself 'if only I was an EE...'.

      --
      -- Each tock of the Planck clock is a new world and here we are still life. --
    13. Re:Oh I can't wait. by Hognoxious · · Score: 1

      But the two are interelated. The reason TVs cost relatively more was they were made with many more components that had to be assembled. Much of the construction was manual, and if it can be assembled manually it's generally easier to dismantle and reassemble manually. A robot can solder where I can't even see.

      So a side-effect of that method of construction was to make them more repairable.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    14. Re:Oh I can't wait. by IndustrialComplex · · Score: 1

      I'm not sure what this is marketed as, for prototyping? Fast prototypes would be nice. But the vast majority of electronics are mass produced stuff, where the physical cost of the PCB is a small portion of the overall circuitry, with components, labour, and R&D being the real cost. I can't see printing traces of silver being cheaper than the existing methods. Maybe I'm missing something.

      Ever see a newspaper printing press in action? Now imagine something similar but churning out small circuits for oneshot electronics (those disposable cameras for instance?) Or you could have electronic business cards with RFIDs built into them (Never going to happen unless you can convince EVERYONE to implement it into their cards) but aside from my 15s guesses, there are definately some interested parties.

      --
      Out of modpoints but really liked a post? 1BDkF6TtmmeZ3yqXbz9yhdYVqRYnwFoXDj
    15. Re:Oh I can't wait. by mcgrew · · Score: 2, Insightful

      Electronics are going to be even more of a pain in the ass to service.

      When integrated circuits were first invented, engineers scoffed. "How would you replace a part in one?" not realizing how cheap the "parts" would be. This is the same thing. TFA says, for example, that today an RFID chip costs a dollar, while this tech would reduce the cost to a penny.

      You don't service them any more than you repair a burned out light bulb.

      I can't see it being terribly reliable either.

      If TVs were a dollar each I wouldn't care how unreliable they were. But TFA covers this too -- until this new tech you needed a clean room.

    16. Re:Oh I can't wait. by ztransform · · Score: 1

      if only I was an EE...

      .. with a soldering iron and an oscilloscope..

    17. Re:Oh I can't wait. by sbeckstead · · Score: 1

      RTFA
      I can't see it being terribly reliable either.
      this is precisely one of the problems that this is designed to fix. Printing circuits from a printer is not new this is a better more reliable process.

    18. Re:Oh I can't wait. by ChrisMaple · · Score: 1

      If you're using CO2 generation as some sort of cost or a bad thing, you're too screwy to warrant further discussion.

      Remember that mining is (among other things) a way that people earn a living, and an essential basis for advanced civilization.

      Design for repairability adds to design expense, manufacturing expense, increased parts cost (screws and tapped holes cost more than snap-together) and results in a bigger, clunkier product. It's not appropriate for point-and-shoot cameras, which are usually obsolete by the time they fail. I'd like easily repairable products, but I can recognize when it's not the best approach.

      --
      Contribute to civilization: ari.aynrand.org/donate
  6. Not too much hype in summary by wisebabo · · Score: 4, Interesting

    When I saw the sentence starting "The possibilities..." I mentally filled it in with "are endless".

    I was surprised (and a little gratified) to see the summary actually enumerating some of the possibilities instead of hyping it as is normally done. That's good!

    1. Re:Not too much hype in summary by Anonymous Coward · · Score: 0

      You should have known better. Didn't you see the lack of KDawson as the author of the post?

  7. Wait for it by Nerdfest · · Score: 5, Funny

    I can't wait to have a working circuit printed on as a tattoo, with the components inserted as piercings. I'm thinkin' 2 stage amp.

    1. Re:Wait for it by MathFox · · Score: 1

      It could make a short-circuit very painful!

      --
      extern warranty;
      main()
      {
      (void)warranty;
      }
    2. Re:Wait for it by pyr02k1 · · Score: 3, Funny

      But it'd always be amusing to watch...

    3. Re:Wait for it by TaoPhoenix · · Score: 1

      Mods, he's very on topic!

      It's like an (semi) unloseable copy of your invention. Espionage aside, if your copy is certified dated properly, it would be a neat defense in lawsuit claims.

      --
      My first Journal Entry ever, in 8 years! http://slashdot.org/journal/365947/aphelion-scifi-fantasy-horror-poetry-webzine
    4. Re:Wait for it by GaryOlson · · Score: 1

      Yes, but when the only replacement part around that works is tatoo'd into your skin, you are going to miss your skin.

      --
      Every mans' island needs an ocean; choose your ocean carefully.
    5. Re:Wait for it by StripedCow · · Score: 2, Funny

      I can see it already:

      "Hey, sorry people, the concert has been canceled, our power amplifier just died"

      "But wait, I have an amplifier tattoo'd on my skin!"

      *goes sitting in the back of the stage hooked up to the equipment, while other people are enjoying the concert*

      --
      If Pandora's box is destined to be opened, *I* want to be the one to open it.
    6. Re:Wait for it by Yoozer · · Score: 1

      "When I flex, it goes to eleven!"

    7. Re:Wait for it by Knackered · · Score: 1

      So you can turn yourself up to 11?

      --
      a.
    8. Re:Wait for it by Anonymous Coward · · Score: 0

      Two words:

      Penis Thevenin.

  8. massproduction by Anonymous Coward · · Score: 0

    Printing like a inktjet is not fast enough, we need rotogravure like speed.

  9. Good for prototypes, good for tech by Gopal.V · · Score: 4, Insightful

    I'd love to prototype on something like this. But I doubt if the actual output off an inkjet would work beyond the first time I sneeze over it.

    Honestly, in some sense I got into software rather than electronics because it was so hard to experiment with electronics freely. This could lower that barrier for hobbyists & more importantly, kids. It needn't last through the weekend, but if it works and you can see it work, it's enough.

    1. Re:Good for prototypes, good for tech by rishistar · · Score: 1

      Conductive Inkjet in the UK are going to be doing a prototyping service coming out in a month or so which should be cheaper than normal routes. But not the same as printing a circuit at home.

      --
      Professor Karmadillo Songs of Science
    2. Re:Good for prototypes, good for tech by pclminion · · Score: 3, Interesting

      I know a guy who used to work at HP. He was an ink chemist, although not personally responsible for the prices you pay ;-) He's a diehard electronics hobbyist, and he's been printing his own boards this way for several years now. I've seen some of his boards, and they seem to be very durable. And this was with an inkjet printer he hacked himself, with home-made ink (he won't tell me what's in it)

  10. But there _are_ already printed circuit !! by Taco+Cowboy · · Score: 1

    .... or am I missing something??

    --
    Muchas Gracias, Señor Edward Snowden !
    1. Re:But there _are_ already printed circuit !! by Necroloth · · Score: 1

      printed with a printer or etched with acid/UV?

    2. Re:But there _are_ already printed circuit !! by Anonymous Coward · · Score: 0

      .... or am I missing something??

      You are probably missing the fact that manufacturing process for copper clad PCBs is very wasteful: in step one, huge laminate board is covered with continuous pure copper layer, then sold in large quantities (areas) to PCB producers. The latter then clean the copper surface from any impurities and place the artwork upon it buy any of the number of processes. Then, parts of copper layer that was left unprotected by features of the artwork is chemically etched away, basically, it is wasted, after all the trouble to put it upon laminate base!

      Even if etched copper is recycled from the solution later, it would be much much better energy-wise if it could had been placed only where needed at the start. I believe this invention addresses that particular problem.

      On the down size, silver ink is probably much more expensive than copper. Also, I don't know how well would this "prints" endure soldering heat? Perhaps adding components is done by using lumps of fresh ink to glue component pins or SMD feet to pads?

  11. Spamming clothes by maxwell+demon · · Score: 4, Insightful

    From the article:

    which will allow wearable electronics -- a T-shirt with a display, say, replacing a printed slogan for marketing or for showing support for a political candidate.

    Great, just what I want: Having my clothes turned into a spamming device.
    There are certainly countless examples of how wearable electronics could be put to good use, but the first thing they think of is advertising. Very telling, I'd say.

    --
    The Tao of math: The numbers you can count are not the real numbers.
    1. Re:Spamming clothes by Anonymous Coward · · Score: 0

      Noone ever wore a t-shirt with a nike swoosh on it? The only difference is now it lights up. Brands are for cattle, I always say...

    2. Re:Spamming clothes by Anonymous Coward · · Score: 0

      Oh God! Pine & Oats, here we come. (shudder).

  12. The actual Xerox link by NewToNix · · Score: 5, Informative
    1. Re:The actual Xerox link by hodagacz · · Score: 1

      That link is a lot more useful, and talks vaguely about semiconductor construction.

    2. Re:The actual Xerox link by Anonymous Coward · · Score: 0

      They couldn't afford to upgrade those 15 inch CRTs?

  13. Printable PASSIVE electronic devices by Anonymous Coward · · Score: 0

    You may be able to print barcodes and antenna's - but this will not do ordinary electronics - like say a switching power inverter , or an ipod amplifier. You will not get the density of a PGA or memory. Maybe a bus pass or something - if you were lucky.

    If you look at a disk drive head ribbon, you will see they have already been making very flexible circuits on a plastic ribbon. But don't fold it up, as heat dissipation and cross capacitance is still a problem. The density needed for Schotties will not come out of an inkjet.

  14. Components? by Xest · · Score: 3, Insightful

    Being able to print the circuit is all well and good, but presumably it's literally just the underlying circuit and components still need to be attached? I'm guessing you can't just print a resistor, a transistor, an IC chip or something?

    If I'm correct in this assumption, presumably this technology doesn't really open any new doors in terms of what can be created, only makes the process for testing and eventually producing circuit designs cheaper and possibly quicker?

    1. Re:Components? by cbope · · Score: 1

      You are correct. It opens the door for faster prototypes and PCB designs. This is actually a fairly expensive area for any company that makes products that use PCB's. One-off PCB's are very expensive today.

    2. Re:Components? by willy_me · · Score: 1

      No, I believe that they are talking about actually printing circuits. I know they were talking about printing OLED displays - this would require printing LEDs. An LED is a diode and if you can print a diode you can print a transistor. Resistors, capacitors, and inductors would be easy compared to transistors.

      The whole point of this process is for cheap, flexible, disposable electronics. If you have to use chips, the cost would probably increase as soldering chips onto a piece of plastic has to be harder then a PCB. Anyway, below is a quote from the article:

      Integrated circuits are made up of three components - a semiconductor, a conductor and a dielectric element - and currently are manufactured in costly silicon chip fabricating factories. By creating a breakthrough silver ink to print the conductor, Xerox has developed all three of the materials necessary for printing plastic circuits.

      So you can see that the goal is to replace the chips. In reality, it will likely replace both chips and the board for low cost electronics.

    3. Re:Components? by Genda · · Score: 4, Insightful

      Actually, there are long term research projects going on into other printable materials that can produce resistors, capacitors, and FET transistors that would be useful in building complete digital devices. You're never going to get the kind of densities available in silicon, however, you can stack many layers of plastic film, and create a three dimensional device that would yield serious computing possibilities. You might even be able mix optical and electronic technologies in a large device of this type. You could build custom flexible logic devices home, business, or play. You could build intelligence into machines and products that you never considered candidates for intelligence before. It would be a transformative technology.

    4. Re:Components? by Anonymous Coward · · Score: 0

      Actually the idea of current printable electronics research is to print the components as well. In other words the objective is to get a functional electronic device out of a relatively simple printer. AFAIK there are prototype systems that can print resistors, diodes and capacitors, and there are even energy sources that can be included as a power supply in a printed circuit. I don't think they are aiming for the kind of resolution that would allow large-scale integrated circuits like microprocessors as of yet.

    5. Re:Components? by Xest · · Score: 1

      That really is quite cool then, if you can print a full blown working circuit onto any printable surface that really does open up a lot of doors for new technology.

    6. Re:Components? by cbhacking · · Score: 1

      The ability to print semiconductors (diodes, LEDs, and transistors) does not necessarily translate to the ability to print resistors (semiconductors have a near-constant voltage drop regardless of current, very different from a resistor), capacitors (no way this thing has the resolution to print *that* much surface area, and you still need a dielectric for any decent capacitance), or inductors (resolution again, plus you won't get much unless you can coil the conductor). There will still be a need for surface-mounted components. The difference is that what previously required a very expensive one-off circuit board plus components now is easy thanks to cheap print-your-own-at-home circuit boards - and if they can integrate semiconductors into the board directly, so much the better.

      The printer and ink won't come cheap, but compared to the cost of one-off PCBs... if it's good enough and cheap enough, this thing could revitalize the electronics industry by taking low-budget electronics design way beyond the realm of breadboards.

      --
      There's no place I could be, since I've found Serenity...
    7. Re:Components? by Xest · · Score: 1

      Now you mention it I do recall reading about the idea of printing multiple layers to produce 3D devices that are still essentially almost flat because of how thin the layers are, although I can't remember where from!

      As you say, being able to print full blown working circuits would open up a lot of new doors!

    8. Re:Components? by Anonymous Coward · · Score: 0

      In what way is this insightful? Bloody obvious would be my tag.

    9. Re:Components? by Jarik+C-Bol · · Score: 1

      so what you are saying is, the annoying musical animated fruit-loops box from minority report is mere decades away?

      --
      I've decided to Diversify my Holdings. I've divided my cash between my left and right pockets, instead of all in one.
    10. Re:Components? by Anonymous Coward · · Score: 0

      Not that much, I can get a one-off 6 layer Eurocard for about 150 euros. It takes time to assemble such a card if it is densely populated.

    11. Re:Components? by willy_me · · Score: 1

      Resistors could be printed by using a semi-conductive compound. Adjust the width, length, and depth of the printed element to adjust the value.

      Capacitors could be printed in multiple layers. First a conductive layer, then a dielectric layer, then a conductive layer. Repeat the process to produce a capacitor of the desired value. They have already developed the required dielectric compounds.

      Inductors are obvious, but likely limited in value due to the difficulties in printing in three dimensions. It would still be possible but would require multiple layers. Possible, but most would end up being a simple trace of squiggles. But inductors needing to support large currents would be near impossible to create - so no switching power supplies.

      So it would be possible, but also quite limiting. The circuit would be spread out and limited with respect to operating speed (for digital circuits). I would also question the accuracy of any printed analog circuits. Those printed on a stiff background might be ok, but flexible plastic would likely result in problems if, for example, you are trying to make an accurate amplifier. But that is just speculation and I would welcome someone who could prove me wrong.

      As far as costs go, this method should be much cheaper then the traditional method of making and then populating a PCB. If it were not cheaper, it would have little value.

      The printer and ink won't come cheap, but compared to the cost of one-off PCBs... if it's good enough and cheap enough, this thing could revitalize the electronics industry by taking low-budget electronics design way beyond the realm of breadboards.

      Ok, while this would be incredibly cool - it would not revitalize anything. Getting a PCB build is not very expensive. It is really only a hindrance to students on a budget. Compared to the time invested in designing a PCB, getting one built is actually quite cheap. Where it might actually make a difference is with hobbyists who are designing integrated circuits. It would make it feasible to design and build a circuit where traditionally one would rely on ICs. So yes, it is very cool and has some real potential. But the only thing it will help revitalize is the way electronic classes are taught - the industry as a whole will not be transformed.

    12. Re:Components? by Theaetetus · · Score: 1

      Being able to print the circuit is all well and good, but presumably it's literally just the underlying circuit and components still need to be attached? I'm guessing you can't just print a resistor, a transistor, an IC chip or something?

      Actually, you can... ICs are a bit more difficult, but you can print a thin wiggly line (_/\/\/\/\/\/\_) for a resistor or a gap for an air dielectric capacitor (----| |----) or a spiral for an inductor. Your only problem - particularly for the resistor - is heat, since to get a high resistance, you either need a lot of wiggles, or a very narrow conductor.

    13. Re:Components? by MattskEE · · Score: 1

      While I am all for the next paradigm, and even support efforts to work printable and 3D electronics, I have serious doubts that it would every be capable of surpassing planar silicon chips for sheer power and scalability in digital electronics.

      The density is going to be incredibly hard to scale, even more so if people will be printing these on home fab systems. It's just not easy to print really small things with something resembling an ink-jet device. Whereas with silicon chips they have to worry about the wavelength of the UVlight used in photoresist exposure, it's a very different scale.

      3D chips have also been worked on for a long time... the big drawback is heat extraction. You can include thermal vias and the like, but then your density decreases even more, and that's just within the device, you still need to extract it to the outside environment. Printable electronics are also going to suffer from speed drawbacks as the resistivity of interconnects and contacts will be greater, process control will be worse so you cannot run at as large a fraction of maximum spec. It also creates yet more heat (I^2R). You can already mix optical and electronics devices in a variety of material systems. Putting them in printable systems will be problematic as I'm not aware of good printable optical waveguide processes. I'm not sure if you mean "flexible" as "can be bent", but if you do then keep in mind that making something flexible means a lot fewer layers if you want it to be reliable, mitigating advantages of the 3D building. Although flexible circuits meant to be bent once and installed conformally to a rigid object can work with somewhat more layers if appropriate design rules are followed, but there are always limits.

      I think the main advantage of these lays in areas besides competing with large-scale silicon digital circuits. I think that it could be well suited for creating for simple circuits that don't do much, but need to be cheap and small. Heck, integrated resistors and capacitors are already used by various circuit board fabricators. It's still rather expensive, but it has promise for decreasing the size of many devices and eventually becoming cheaper to manufacture.

  15. Paper + Electricity = Fire by petrus4 · · Score: 1

    I'm a long way from Einstein, but even I know that.

    I admit, it does sound very cool; and maybe on plastic (or polymer) it might have some chance of working. Paper, cardboard, or fabrics however are not a good idea.

    1. Re:Paper + Electricity = Fire by kimvette · · Score: 1

      Open up some electronics sometime, or for that matter, dissect some batteries. What do they often use for insulation? Paper.

      Heck, paper used to be used to insulate high voltage AC in appliances and homes.

      It's not all that dangerous, especially for low-voltage use. For higher-current applications you probably want flame-retardant treatment on the paper to reduce the risk of combustion, but it really isn't a problem.

      --
      The Christian Right is Neither (Christian nor right). See: Matthew 23, Matthew 25, Ezekiel 16:48-50
    2. Re:Paper + Electricity = Fire by Anonymous Coward · · Score: 0

      Einstein came up with the theory of relativity. This doesn't imply that he's not an idiot.

      http://www.youtube.com/watch?v=d-EgbhdcSKc

    3. Re:Paper + Electricity = Fire by LWATCDR · · Score: 1

      Not really. you must heat paper to 451f to get it to ignite. Back in the old days they even used cotton on house current wires for insulation it worked but wasn't as safe as what we have now.
      If you are talking about high voltage, high power stuff then yea not the best idea. If you are talking about the power levels in most computers then it is fine.

      If you can do it on say paper or fabric how about ceramic? That would be even safer than the PCB boards we use now as far as fire goes.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    4. Re:Paper + Electricity = Fire by ChrisMaple · · Score: 1

      Many early printed circuit board substrates weren't much more than an appropriate grade of paper with a good binder (especially outside the US. In the US, fiberglass-epoxy was economical enough for most purposes because heavy use by the military drove down prices.)

      --
      Contribute to civilization: ari.aynrand.org/donate
  16. wearables .. by rs232 · · Score: 1

    I see a use in wearables, devices built into your clothes ..
    -------

    Making (microsoft) ACPI not work with Linux ..

    "Foxconn .. have several different tables, a group for Windws XP and Vista, a group for 2000, a group for NT, Me, 95, 98, etc. that just errors out, and one for LINUX.

    The one for Linux points to a badly written table that does not correspond to the board's ACPI implementation, causing weird kernel errors, strange system freezing, no suspend or hibernate, and other problems"

    'You are incorrect in that the motherboard is not ACPI complaint. If it were not, then it would not have received Microsoft Certification for WHQL', Foxconn


    'One thing I find myself wondering about is whether we shouldn't try and make the "ACPI" extensions somehow Windows specific ', billg Jan 1999

    --
    davecb5620@gmail.com
    1. Re:wearables .. by wurp · · Score: 1

      Have you read Vernor Vinge's "Rainbows End"?

  17. Combined with 3D print tech by CiderJack · · Score: 1

    I can see this making the 3D printer *truly* revolutionary...! So what if next year you can create your own 64mb stick (block?) of ram that is 6x6 inches... in 5 years it will be 10 times as much ram, and one-half the size! Cheaper than buying silicon? Who knows... Technology only improves - as long as the world's economy doesn't collapse.... http://www.collapsemovie.com/ Cheers! ;)

  18. "once the ink's affordable"...? by distantbody · · Score: 2, Insightful

    Hmmm, if Xerox gets its way with a monopoly razor-blade like business in printable solder, ink won't be cheap.

  19. How ridiculous, prior art, etc.. by Ancient_Hacker · · Score: 1

    There are dozens of patents, going back to 1940, for printing conductors on a surface.

      IBM based their 360 line of computers on a set of circuit modules which had the conductors (probably silk-screen printed) onto a ceramic wafer.

    So there is nothing remotely new about printing conductors. Or resistors.

    You can't print semiconductors-- transistors, diodes, FETs or LEDS-- they have to be very pure crystalline solids with definite junctions, so that's a big roadblock.

    1. Re:How ridiculous, prior art, etc.. by Pinky's+Brain · · Score: 1

      The problem is that to sinter "normal" silver particles you used to need extremely high temperatures, normal oven sintering would destroy paper and plastic substrates (although flash sintering with microwaves or high intensity strobes can still work). They managed to create 5 nm sized particle suspensions which can be sintered at much lower temperatures.

      You seriously never heard of polymer semiconductors? (OLEDs ring a bell?)

    2. Re:How ridiculous, prior art, etc.. by LWATCDR · · Score: 1

      If you could do this on fabric maybe you could make a camouflage suite that has tiny optical sensors and oleds :)

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
  20. Cost by meyekul · · Score: 1

    How much is this magic conductive PCB ink and printer going to cost though? If it is anything like the magnetic ink you need for printing checks, I think they just raised the entry bar a fair bit. BTW you can already print your own PCBs, you just need a regular laser printer and some acid to etch out the pattern. There are numerous guides on Google about how to do this on the cheap.

  21. Re:Components: Resistor by spectrokid · · Score: 1

    Well your silver "lane" will have a certain resistance. Printing a thin wiggely line will make a nice resistor. Two lines just next to each other a capacitor. Obviously you will be limited in the range of Ohms / Farads available, but some basic components should be possible.

    --

    10 ?"Hello World" life was simple then

  22. PR summary, give me some eyewash by Anonymous Coward · · Score: 0

    Xerox announced a new silver ink that it's calling a breakthrough in printable electronics, a leading-edge concept that's generated a lot of discussion but few actual products to date.

    So it's a real leading-edge breakthrough concept for the space age, eh?

    Why?

    Oh gosh, don't keep me waiting for the answer!

    Precisely because of the issues that Xerox claims to have addressed.

    Are you sure it's precise? And what are these issues?

    In concept, printable electronics is just what it sounds like:

    Thanks for that intro. I was really scratching my head as to what it meant, since "printable electronics" just doesn't bring to mind anything clear.

    If this can be done reliably, electronic devices can be printed for far less than current methods cost.

    And if we can develop a cheaper alternative to oil, we'll be able to have a cheaper alternative to oil. Oh, right, there's the question of how. How will these printable electronics be done reliably? And I'm sure that's the problem that everyone's trying to solve.

    The possibilities range from printing on flexible plastic, to paper and cardboard, to fabric.

    So in summary, this will impact everything from watch making to watch repair? OK sorry, had to end this critique on a light note.

  23. Thanks by Kupfernigk · · Score: 1

    I waited to see if anybody would take my (off-topic) point. I think that "Photography", literally drawing with light, does properly apply to the silver process. The digital process is quite different and has a different mindset. I'm a former RPS member who used to do landscape and portraits in medium format. I had to plan carefully, expose carefully and process carefully so as not to waste film. Nowadays, people just seem to point and click endlessly hoping that one of the results will be good, then fix stuff in Photoshop. I call it digital imaging because it is a different trade with different skills, just as I don't call helming a powerboat "sailing". (And my attempts with digital cameras are still nowhere near as good as my old MF photos - just knowing you can point and click seems to do something to my skill level.)

    --
    From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
    1. Re:Thanks by MadnessASAP · · Score: 1

      Nowadays, people just seem to point and click endlessly hoping that one of the results will be good

      That's how alot of photography was done even before digital cameras, I used to do alot of B&W photography with a film SLR and would process my own photos in a darkroom. I took hundreds even thousands of frames, I would go through about 100 shots to find 1 that I would consider presenting to someone else AFTER spending a few hours touching it up in the darkroom. There's nothing wrong with spamming shots with a camera and it's one of the first things I recommend to people who are starting out in photography.

      --
      I may agree with what you say, but I will defend to the death your right to face the consequences of saying it.
  24. No problem.. by Anonymous Coward · · Score: 0

    All you need is a standard sheet with pin holes in standard grid configuration. You print out the circuit, and insert your components through the holes, them clip them in place underneath,( or solder if the substrate can handle the heat!). I envision something like the clip on the back of an earring to hold them in place.

  25. Hm. No. by Nicolas+MONNET · · Score: 1

    It's going to be very hard to start a fire on the typical 1 to 5V potential used in everyday electronics. I don't suppose that kind of thing will be used for power electronic. And yeah, I know lithium batteries can easily start a fire but they don't need paper PCBs to do that.

  26. Even more definite no by Kupfernigk · · Score: 1

    Einstein wouldn't have known that. He was a mathematical theoretical physicist, not an engineer. But you are wrong for another reason. Most low end PCBs are actually printed on a polymer-loaded paper substrate not that far from cardboard. Most modern paper burns very badly because a major component is clay - it's extremely hard to burn a magazine as they tend to have very highly loaded paper to allow full color printing. A modern mechanically polished paper substrate printed with a thin layer of UV cured polymer - which is basically what a full gloss brochure typically is made from - would be a "good enough" substrate for short life printable electronics.

    --
    From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
  27. Tinfoil hat inversion by GaryOlson · · Score: 1

    Now I can print a silver etched paper hat antenna which will magnify the signals into my brain. Oh, listen to all the sweet voices!

    --
    Every mans' island needs an ocean; choose your ocean carefully.
  28. Ahem... by Anonymous Coward · · Score: 0

    You can't print semiconductors-- transistors, diodes, FETs or LEDS-- they have to be very pure crystalline solids with definite junctions, so that's a big roadblock.

    TFTs: http://en.wikipedia.org/wiki/Thin-film_transistor

    TFTs can be made using a wide variety of semiconductor materials. A common material is silicon. The characteristics of a silicon based TFT depend on the crystalline state. That is, the semiconductor layer can be either amorphous silicon, microcrystalline silicon, or it can be annealed into polysilicon.

    I would say that your knowledge of transistors is somewhat outdated.

  29. better than two lines by Anonymous Coward · · Score: 0

    if it can layer conductor and insulator it could make sheets layered on top possibly alternating several times. or printing a piezo, you could make a careful shaped series of piezos produce reasonably passable audio also compensating for the resonance of the shell.

  30. If they can print circuits on fabric... by Interoperable · · Score: 1

    ThinkGeek will have a field day.

    --
    So if this is the future...where's my jet pack?
    1. Re:If they can print circuits on fabric... by six11 · · Score: 1

      Oh, they have. A friend of mine did her PhD on computationally-enhanced textiles.

      Do-it-yourself rapid prototyping machinery is roughly in the same state that home desktop publishing was back in 1980. Fabrication devices like 3D printers, laser cutters, CNC routers, and soon robotic garment makers will eventually become cheap enough that you will likely have access to one (if not in your home, then perhaps at your school or local crazy artist co-op). The thing is, most people have such a consumption mentality that given the opportunity to design and make things for themselves, they really have no idea where to begin. Fortunately, this is starting to change as people realize they can take an active part in designing and making the world they live in. Communities like Make Faire and various local flavors of DorkBot (go find yours!) are around to help educate and support your inner nerd. Personally, I've made a sort of 3D Logo language for programming physical shape that can be produced on a laser cutter.

  31. Stratasys® 3-D Printing + DVDs by scorpivs · · Score: 1

    While Stratasys® is 'printing' all my capacitors, resistors and heatsinks, I'll be busy turning this ream of photo paper into head-to-head layers for a slew of motherboards and DVDs.

    --
    There is nothing to FEAR but NOTHING itself; and I fear there is a whole lot of nothing going on. --scorpivs
  32. Raise your hand if... by Anonymous Coward · · Score: 0

    ...you'd be perfectly happy to just own a regular B&W laser printer, but you can't because your wife (and perhaps kids) always *insist* on getting an inkjet because they want to be able to print in color, despite the fact that they rarely do, and that the inkjet ink cartridges cost an arm and a leg.

    Yeah, thought so.

  33. Piracy enters new realms by Anonymous Coward · · Score: 0

    I wonder if this means that I will eventually be able to download and print off the latest graphics cards.

  34. Paper? by ILuvRamen · · Score: 1

    I'm no engineer but I don't think the US would allow electronics to be sold where the circuitboard is made out of something flammable like paper. That's an unbelievably stupid idea!

    --
    Google's Super Secret Search Algorithm: SELECT @search_results FROM internet WHERE @search_results = 'good'
  35. As a gold and silver bug... by paulpach · · Score: 1

    Silver already has plenty of industrial uses, however they are not what drive the price of silver.

    The reason most people invest in gold and silver are different: They are a kind of money that no government can print,they are costly to mine. Compare that to the pieces of paper that come out of the printing press in a central bank, and especially the central bank that we have that just doubled their balance sheet, and it is easy to see that the amount of gold and silver remains relatively fixed to the amount of dollars (and most other fiat currencies).

    Historically, gold and silver have replaced every single fiat currency in history starting from the Romans 2000 years ago. Make no mistake, they will replace our current currency as well sooner or later.

    It took the central bank raising interest rates to 20% by Paul Volger back in 1980 and cause a deep but quick recession to make gold and silver go down. The prospect of 20% interest was enough to entice a lot of people to get some dollars and gain interest rather than hold gold and silver. Also, the 20% interest rates means the Central bank stopped the printing presses. Does anyone believe Bernanke and Obama have the balls to do that again?

  36. Been done before by gr8_phk · · Score: 1

    I recall seeing an article years ago about OLED displays. Someone actually made a functional prototype using an inkjet printer. They put the chemicals in the cartridge and printed an electronic display. My first thought was being able to print light-up signs. I've always wondered why the geek hobbyists haven't done this yet.

  37. prior art exists. by swschrad · · Score: 1

    AT&T Western Electric printed the cards for many items, including the computers for the Safeguard ABM system and their class-4 phone switch cards, in the 1970s. sprayed silver ink.

    no patent forrrrr YOU.

    --
    if this is supposed to be a new economy, how come they still want my old fashioned money?
  38. It's Already Been Available for Desktop Inkjets... by LuxuryYacht · · Score: 2, Informative

    as water based ink and does not require sintering or secondary processing and works well on standard inkjet or copier paper:
    http://www.methodedevelopment.com/whatsnew.aspx?newsitem=29
    http://www.methodedevelopment.com/whatsnew.aspx?newsitem=30

    Commercial inkjet systems for printing electronics on a wide range of materials has also been available for some time: http://www.onelabs.com/prntelec0000.htm

    Multilayer conductive pcb traces including passive and active components are already being inkjet printed. The current geometries however for components are in the few micron range. A couple of decades behind current semiconductor processing but far ahead of current pcb fabrication techniques.

    --
    Quidquid latine dictum sit altum viditur
  39. Look at the bright side by ClosedSource · · Score: 1

    Remember all the great things Xerox invented during its monopoly days?

  40. Uh-oh by ClosedSource · · Score: 1

    I feel a disturbance in the force ... GPLv4.

  41. Yeah - but can they make a shirtcuff watch by spineboy · · Score: 1

    That's all I want - a watch printed on my shirtcuff - they can put the read out on the cuff, and have the guts somewhere in the yoke where the fabric is thicker.

    --
    ..........FULL STOP.
  42. Love it by marc_jager · · Score: 1

    Brilliant! I need a new phone, just print one!

  43. Other ideas... by ResidentSourcerer · · Score: 1

    chips with button holes so they can be sewn to the fabric
    printed circuits.

    --
    Third Career: Tree Farmer Second Career: Computer Geek First Career: Teacher, Outdoor Instructor, Photographer.