Slashdot Mirror


Single-Atom Transistor

zarsky99 writes: "EETimes is reporting that Japanese researchers are close to creating the world's first single-atom transistor. This could be a boon to power problems and Moore's Law. The article is here, and please enjoy. Now if they could only get a single girl to date me." OK, you take the transistor, I'll take the girl ;) J adds: For those of you graphing Moore's Wacky Law: November1999, 50nm; November1999, 18nm; October2000, 1nm; December2000, 30nm; five days ago, 30nm. We don't make the semiconductors, we just report 'em.

33 of 95 comments (clear)

  1. Single electron, not single atom by CrazyMadPsychoBandit · · Score: 4

    The transistor itself contains several atoms, although it's still MUCH smaller than today's devices. A one-electron difference in charge on the transistor's gate is all that's needed to switch it on/off.

  2. What atom would that be? by Arandir · · Score: 5

    Okay, it's been quite a long time since I took high school chemistry, so maybe something radical changed in the field since then. But I distinctly recall only about 200 to 250 possible elements. Which isotype of which element does this single atom belong to?

    Oh hell! This can't possibly be right. Not even Japan can alter the laws of physics. Let me read the article to see what the truth of the matter is... ...yes, Slashdot goofed again (does this surprise anyone). They read the eeTimes' equally innacurate headline and never bothered to read the article. Quoting the real information, we find that:

    The transistor Aono is developing makes a switch circuit consisting of ... a 10-atom-diameter cluster of 500 silver atoms that acts as a capacitor...

    and

    "We can make an atomic switch in a cluster of silver atoms"

    Very amazing. But it's not a "Single-Atom Transistor" like Slashdot says. The key component in the transistor may be a single atom, but the transistor itself is not.

    --
    A Government Is a Body of People, Usually Notably Ungoverned
    1. Re:What atom would that be? by Arandir · · Score: 2

      Perhaps I just take stuff too literally, but saying "Single-Atom Transistor" is like saying "Computer on a Chip". I keep wondering about the I/O...

      That single atom may be the key component, but it's useless without all the other atoms around it. Try building a lightswitch with just a single unbroken copper strip, and you'll see what I mean.

      --
      A Government Is a Body of People, Usually Notably Ungoverned
  3. An interesting post, but by Tsar+cr0bar · · Score: 3

    what the heck is with the remark about single girls at the end? Is that a joke? I don't see the contextual relevance... The poor /. posters are so sexually frustrated and neurotic that it's spilling over into news posts about atom-sized transistors! Now if only I could get that girl's phone number. . . .

  4. Re:Massive acceleration of Moore's Law by dstone · · Score: 2

    So where will we be next Monday?

    Still without dates, most of us.

  5. NOT a single atom transistor by NigelJohnstone · · Score: 2

    If you read the article, its a group of atoms arranged so that 1 electron makes the difference between open and closed.

    Its not a single atom transistor, its a transistor switched on or off by a single electron.

    All your base/collector/emitter belongs to us.

  6. Re:Consequences of Moore's Law by magi · · Score: 4
    Speaking of Moore's Law, does this mean that in 18 months we'll have scientists promising half-atom transistors?

    Naah, they start with Lawrencium 262, then in a few months they kick out a few neutrons and protons to make Fermium 256 (just to make these calculations easier). Then, with 18 month steps: Xenon 128, Zirconium 64, Sulphur 32, Oxygen 16, Beryllium 8 (9 is more stable though), Helium 4, Hydrogen 2, and finally Hydrogen 1 (ehm...a single proton).

    Thus, it takes 12 years before they have to go to subatomics!

  7. pico-wires by Spy+Hunter · · Score: 4

    While the single-atom transistor thing is cool, it seems to me that the interesting part of this discovery/invention is the super-tiny wires they have to connect them. Now THAT's cool, and a big problem down there at the nano(pico?)-scale level.

    What I want to know is, how will they connect this with normal electronics? They'd probably need 5 or 6 buffers in between to step down the current so as not to fry the tiny wires. Also, wouldn't a chip made with this technology be super-sensitive to interference? If a random cosmic ray hit it, it would probably be fried.

    Hope they can solve all the problems. This sounds like really cool technology.

    [me@localhost]$ prolog
    | ?- god.
    ! Existence error in god/0

    --
    main(c,r){for(r=32;r;) printf(++c>31?c=!r--,"\n":c<r?" ":~c&r?" `":" #");}
  8. single atom AND / OR gates by josepha48 · · Score: 4
    In IEEE there was an article a year ago on single atom AND and OR gates. Basically they were dealing with the spin of the electrons. This would be equivelant to two transistors(maybe). At the time I am not sure if it was theoretical or not, but it does not suprise me. The problem is dealing with an interface to that level of technology. How do you connect a wire to this to actually get the output somewhere. This is the problem they had a year ago. If you have a micro chip that has atom sized transistors, how do you connect the wires to these chips to get the power to. Also with a conventional power supply how do you step down the power to that level without the massive overhead of creating a major conversion mechanism. 220/110 W to ??

    Anyway it is a step, now we need the leap. What would really be neat is to see smaller PC parts today. A 2" network card and a 2" modem connecting to an 8"x6" MB would be sweet. Then my pc would be cut down to about 1/3 its current size. A cdrom drive that only 1/2 the cd went it rather than a drawer. Hmmm

    I don't want a lot, I just want it all!
    Flame away, I have a hose!

    --

    Only 'flamers' flame!

    1. Re:single atom AND / OR gates by josepha48 · · Score: 2
      Laptops are not upgradable like desktops are. Try taking that video card out of your lap top. Oh you cannot. Some people have made desktop computers that are more in the direction I am talking about. Sort of like the cube. The problem with the cube is that it is not upgradeable. I am talking about a MB that is about 1/3 the size and 1/3 the power of current mb's. yes laptops are that small, but like I said try upgrading the video card on a laptop, or playing games. Also the price on an equivelant laptop (compared to the same desktop) is to great.

      So tell me why does a PCI scsi card have to be 4" or so wide when the chips on it only take uyp about an inch? The fact is that many PCI and AGP cards today could be 2" wide. Also laptops either have a cdrom or floppy else everything is external. I want the computer to have a zip, floppy, 52x or greater cdrom and cdburner INSIDE the machine.

      I don't want a lot, I just want it all!
      Flame away, I have a hose!

      --

      Only 'flamers' flame!

  9. Massive acceleration of Moore's Law by arnald · · Score: 3

    As seen on Slashdot:

    Sunday March 04, @08:37AM - Transistors 3 atoms wide
    Thursday March 08, @08:08PM - Transistors 1 atom wide

    So where will we be next Monday? :-)

    --
    arnald
  10. I Sure Hope... by Robotech_Master · · Score: 4

    ...that after they make these things, they're careful to remember where they put them.
    --

    --
    Editor Emeritus and Senior Writer, TeleRead.org
  11. What do women and transistors have in common by Anonymous Coward · · Score: 5

    - They are often biased
    - They often amplify things out of proportion
    - They can switch their minds in an instant
    - They are often non-linear
    - They consume energy

  12. non-sequitor by TheDullBlade · · Score: 2

    RTFA. That's basic research you're bitching about, not superfast CPU development.

    Better fab processes improve all the microcircuitry, not just the main processor.

    Incidentally, the old modular tech you can snap together with thick, clumsy fingers can't be improved much further, which is why it's lagging. There's no sense bitching about your cheap swappable DIMMs when you won't shell out for faster RAM or buy a non-expandable machine. There is faster RAM available, it's just more expensive and needs a special set-up. Same thing for hard drives; people buy gigs, not MB/s. The market's producing what people want: layered caching of inexpensive, immense data stores.
    ---

    --
    /.
  13. why so big? by CaptainAvatar · · Score: 2

    30 nautical miles is one friggin' huge transistor!
    --

    --
    The real Captain Avatar is a fictional character, so I suppose he doesn't mind if I impersonate him.
  14. Power Density by Alien54 · · Score: 2
    Never mind the need for redundant transistors because you go to protect against Cosmic Rays (sort of defeats the purpose, no?)

    There is a thing about Moore's Law and Power density. power density keeps going up with increasing density of computational activity. At some point it gets so dense that we need insane cooling, or else we are using warp cores for computational exercises. [perks up at the thought]

    Now there is a idea. Subatomic quantum computing using a warp core. That should keep Moore's law going for a while.

    --
    "It is a greater offense to steal men's labor, than their clothes"
  15. nano-money by MelloDawg · · Score: 2

    a new catch phrase? "Yeah my paycheck is so nano".

    --
    /. is irrelevant.
  16. 18 months later by BlowCat · · Score: 3
    they'll create a half-atom transistor.

    By the way, really good Russian girls are here: http://bride.ru/

  17. Question... by boinger · · Score: 3

    So, if it's a single atom, is it an existing element, or do we now get Transistorium? Just curious.

    --
    Send your friends messages of love at fuck-you.org
  18. So basically... by 11thangel · · Score: 2

    They found an element capable of being a transistor and are trying to market it. Either that or some physics nerd has waaaaay too much time on his hands....

    And people call _ME_ a nerd...

    --

    I am !amused.
  19. Consequences of Moore's Law by DeadMeat+(TM) · · Score: 4

    Speaking of Moore's Law, does this mean that in 18 months we'll have scientists promising half-atom transistors? Now that'll be really interesting . . .

    (Disclaimer: don't bother flame^H^H^H^H^Hcorrecting me about Moore's Law not really being a law. I know that; I'm just joking.)

  20. Re:That's gonna be hell on DIYers by Arandir · · Score: 2

    The Intel Pentium XIII only costs $1.99 but the STM to install it in its socket costs upwards of several million...

    --
    A Government Is a Body of People, Usually Notably Ungoverned
  21. Re:That's gonna be hell on DIYers by sharkey · · Score: 2

    Easy, it's the one surrounded by 6 x 10^23 microfans.

    Basically, all the angels dancing on the head of a pin, keeping it cool.

    --

    --

    --
    "Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.
  22. Single girl to date you? by stefanlasiewski · · Score: 2
    creating the world's first single-atom transistor. ... Now if they could only get a single girl to date me.

    <joke>
    Now, if they created multiple-atom transitors, and you couldn't get multiple girls to date you, what makes you think that a single atom transitor is going to get you a single girl to date you?
    </joke-cuz-ive-been-there-too>

    --
    "Can of worms? The can is open... the worms are everywhere."
  23. Oh, good! by Pig+Hogger · · Score: 2
    Then, the notched electron is not too far off... :)

    (What was the title of that story, by the way?)

    --

  24. You could also demonstrate: by TheDullBlade · · Score: 2
    • sneeze on the desktop
    • ask the VIP to point his index finger
    • grab the VIP's hand
    • dip his finger in the mess on the desk
    • draw a transistor with his finger


    See? It works like that.
    ---
    --
    /.
  25. Easy, if not cheap solution by skybird0 · · Score: 2
    "Now if they could only get a single girl to date me."

    Have you considered calling an outcall (escort) service?

  26. Why have offchip DRAM at all? by PeterM+from+Berkeley · · Score: 2

    They claim 1Tb on a 10cm^2 die. Let's assume
    1 transistor per bit (pessimistic).

    That's 1 x 10^11 transistors on a cm^2 die.

    Do you realize how much SRAM memory that translates into? Roughly 2GB, with
    enough transistors left over to have a CPU on the same die.

    WITH A CPU LIKE THAT...

    WHO NEEDS A MEMORY SUBSYSTEM?

    Just give the thing some I/O pins to talk
    to a bus!

    PeterM

  27. All us techies could learn something from this guy by TheDullBlade · · Score: 3

    Emperor: This is only one finger. How can you make a tool?

    Researcher: We can pick up a grain of rice when we wet the tip of our finger. That force is some kind of tool.

    Now that is the way to dumb things down for management and VIPs.
    ---

    --
    /.
  28. PROCESS vs PROTOTYPE by Y2K+is+bogus · · Score: 2

    Intel announced a PROCESS, not a prototype. The one buckyball transistor was a PROTOTYPE, not PROCESS. These are NOT the same.

    A PROCESS is a way of actually manufacturing the transistor, a PROTOTYPE is simply the EXISTENCE of a transistor.

    Intel could manufacture the 30nm transistor, however the 1nm transistor is merely a lab toy.

    There is a HUGE distinction, get it straight.

  29. Re:What atom would that be? -- Transitium. Z=451 by MustardMan · · Score: 2

    i hate to let myself be trolled, but...

    smoke crack much?

  30. It won't do any good by Dr.+Prakash+Kothari · · Score: 5
    I feel that too much emphasis is being placed on processor speed today. An important processor is nice, but we need to take the emphasis off of multi-gigahertz processing, and take a step back to develop other components to the same technological advancement. We're rapidly approching a point where a two, five, or even ten gigahertz processor isn't going to improve performance, because it's no longer the limiting factor. I'd love to have my own processor made from single atom transistors, but first, we need to work on improving bus speeds, memory latency, and hard disk access time. Without all of these factors working in unison at high speeds, the only thing you're going to get from an ultrafast processor is a lighter wallet.

    Just look at some of the benchmarks on Tom'sHardware. The majority of them are all dead even after processor speeds hit 8 or 9 hundred Mhz.

    Some of the newer Athlon processors have 12x multipliers. That means the processor is working 12 times as fast as the rest of the system. This is wasteful, and you end up with a lot of dead processor cycles because the RAM/system bus can't provide enough data for processing. Manufacturer's need to stop throwing money at superfast processor development, and work on improving system bus speeds, and latency/throughput of RAM.

    --

    "Technically, a cat locked in a box may be alive or dead." -Kurt Cobain

  31. Half-Decayed Answer... by SEWilco · · Score: 2

    And the half-life of Transistorium is eighteen parsecs?