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The Environmental Cost of Silicon Chips

Col. Panic writes "Scientific American is running a small story about the amount of material required to produce silicon chips and the potential hazards of associated toxic chemicals." This combined with coltan mining processes sure paints a dark picture of the chip industry.

40 of 201 comments (clear)

  1. I refuse to use them. by acehole · · Score: 4, Funny

    In line with protecting the environment, I choose to use environmentally friendly products in my cpu, such as compost and renewable timber.

    Of course my computer doesnt work, but at least i'm helping the environment.

    --
    Be you Admins? nay, we are but lusers!
  2. That's it! by empee · · Score: 4, Funny

    I'm NEVER buying a CPU from DeBeers' ever again.

  3. save some for the fishies!!! by TOGA!+TOGA+TOGA! · · Score: 4, Funny

    a typical two-gram chip takes 1.6 kilograms of fossil fuel, 72 grams of chemicals and 32 kilograms of water Does anyone know if this 'water' is resuable? Is it just for cooling?

    1. Re:save some for the fishies!!! by Anonymous Coward · · Score: 5, Funny

      The water is used in coffee, Coke and other caffeinated drinks by the nerds who design the chips.

    2. Re:save some for the fishies!!! by max+cohen · · Score: 3, Interesting

      The water is used for rinsing wafers, which happens many, many times in a typical chip process. The water is highly filtered and deionized before the wafers are washed, then is cleansed to remove the acids and solvents that are picked up during rinse cycles. So it is reusable, but only after minerals are added back to it. You cannot drink fab quality water because it a large concentration gradient would form and minerals from the other fluids in your body would be depleted by the migration into the ultra pure water.

    3. Re:save some for the fishies!!! by Urban+Garlic · · Score: 3, Insightful

      > You cannot drink fab quality water because it a large concentration gradient would form and minerals from the other fluids in your body would be depleted by the migration into the ultra pure water.

      This has made my BS detector twitch. As soon as the pure water hits my mouth, it becomes impure because it mixes with my spit, so there's really no such thing as "drinking ultra-pure water." Water with the same concentration of saline as your body is actually much more dangerous than fresh water, and fresh water supplies all over the world have widely varying concentrations of minerals, yet people survive on them.

      Maybe I'm missing something, but I invoke common sense to assert that as long as the mineral concentration of fresh water is reasonably low, the precise value is not important, and furthermore that the value of zero is not special.

      --
      2*3*3*3*3*11*251
    4. Re:save some for the fishies!!! by denzo · · Score: 4, Informative
      > You cannot drink fab quality water because it a large concentration gradient would form and minerals from the other fluids in your body would be depleted by the migration into the ultra pure water.
      This has made my BS detector twitch. As soon as the pure water hits my mouth, it becomes impure because it mixes with my spit, so there's really no such thing as "drinking ultra-pure water."
      Yep, it's a myth that pure water leaches minerals from your body. Once it comes into contact with impurities (such as spit, like you mentioned), the water is no longer "pure". So how can pure water stay pure and do damage to our body? Even so, it will only remove minerals that are body has not used, not what has already been absorbed by our cells, which our body didn't need anyway. And our minerals aren't absorbed from water anyway, they're absorbed from food.

      The only other way pure water can kill you is in a massive quantity, which would kill you even if it was normal drinking water.

  4. A clean room by truthsearch · · Score: 3, Informative

    I can't seem to find the link, but recently Wired published an article in their dead-tree magazine about replacements for many of the hazardous chemicals used in chip production. There are new ideas which will make most of the run-off biodegradable, and some companies are looking into building new factories to support these new techs in the long term. But there won't be any environmentally safe process anytime in the near future.

    1. Re:A clean room by mr_z_beeblebrox · · Score: 5, Funny

      But there won't be any environmentally safe process anytime in the near future.

      That's not hardly fair. We have a newly structured govt. in the US that is pushing hard for greener processes. They will cut taxes for big industry, relax emission standards etc...all so our children can have a greener environment to grow up in. Of course green is the color of more than grass.

    2. Re:A clean room by max+cohen · · Score: 4, Informative

      The replacement they were referring to in that article is super critical carbon dioxide. It is a viable solution to the environmental problem for chip production and already used for "greener" dry cleaning, but definately won't be ramping up in fabs anytime soon. Chip manufacturers are very slow and recluctant to change processes.

  5. Alternatives by e8johan · · Score: 3, Interesting

    What are the alternatives. I understand that people compain about other people using cars that use excessive amounts of fuel, but there is no better way to make microchips yet, or is there?

    1. Re:Alternatives by Mr_Dyqik · · Score: 4, Interesting

      Don't upgrade. Don't play the very latest games with all the graphics turned up to full. Don't install the latest bloatware OS (I'm remaining very carefully vendor neutral here). Buy fewer products with microchips in them.

  6. The chemicals by wiredog · · Score: 5, Interesting
    I used to do programming for automated process lines used in the circuit board industry and quartz chip fabs (the chips used for timing purposes). One of the chemicals used is HF, since that's about the only thing that will etch silicon, which is really nasty. Also used are H2SO4, potassium permanganate, and other fun chemicals.

    Important safety note: When working in such a place, always wash your hands up to the elbows before going to the bathroom, or rubbing your eyes. I've been told that sulfuric on the willy is an unforgettable experience...

    1. Re:The chemicals by Zathrus · · Score: 5, Insightful

      Important safety note: When working in such a place, always wash your hands up to the elbows before going to the bathroom, or rubbing your eyes. I've been told that sulfuric on the willy is an unforgettable experience...

      Where on earth did you work with such shitty fab safety that you were likely to get any of those chemicals on you?

      I've worked in fabs too, and wrote software to control PVD/CVD and etchers. When I started the job I went to about a week worth of fab safety classes where they scared the hell out of you from doing stupid things with chemicals. Probably my favorite line was "if you hear the gas alarm, leave the chemical storage room immediately. If you choose to linger, at least try to die within 6 feet of the door, because that's how long the hook is to drag your body out."

      The chemicals being used in modern fabs are, indeed, incredibly, ungodly nasty. HF, arsenic, H2SO4, etc are the tip of the iceberg. We couldn't wear contacts in the fab because of a cleaning chemical in the floor with the trade name Pirhana. If something ever went wrong and the fans backblasted, Pirhana would melt plastic - and thus your contacts. To your eyes. So we got safety glasses. There were gasses in use that would kill you before they could be detected.

      The point of all this is that safety procedures were taken very, very seriously. It didn't matter if it was deionized water or 80 molar HF - you didn't screw around with the chemicals. Having to "wash up to the elbows" wasn't necessary because there weren't going to be chemicals around that you could get on you. Not to mention that you were in a fab suit in the first place.

      Damn, I'm glad I didn't work wherever you did. I value my health more than that.

    2. Re:The chemicals by giminy · · Score: 3, Funny

      . . I suddenly see a perfect plot for a comic book . . . intriguing . . .

      A superhero doped with arsenic, making him able to conduct electricity one way but not the other? What would you call him? The Human Diode?

      --
      The Right Reverend K. Reid Wightman,
  7. Re:And what are we supposed to do? by mumblestheclown · · Score: 4, Insightful
    dittos, rush

    or, more likely--this is a reminder to all that are working on this sort of stuff to consider the environmental consequences of their actions.

    basically, you could write the same case about the auto industry 30 years ago. then, people started becoming interested in environmental issues, and attitudes within the industry changed. While we're not at ideal yet, we're at least at where even SUV owners have embedded in their minds somewhere that such gas guzzling is not the best idea.

  8. Newsflash! by Noryungi · · Score: 5, Funny

    Complex chemical compounds can be harmful to your health and to the environment! (Wow!)

    And, in related news, Bill Gates is incredibly rich and Saddam Hussein may not be such a nice guy after all! (Amazing!)

    More information in our next news program... Film at 11.

    --
    The right to offend is far more important than the right not to be offended. (Rowan Atkinson)
  9. Benefit too great by Apreche · · Score: 4, Insightful

    while there may be some environmental issues concerning chip manufacture. The benefit that the microprocessor has brought to human society far outweighs any environmental cost.

    --
    The GeekNights podcast is going strong. Listen!
  10. as if a geek's taken a breath of fresh air lately by colnago · · Score: 5, Funny
    a *real* geek doesn't get outside enough to care about the environment.


    Okay, it's not very funny. Don't laugh.

  11. Re:And what are we supposed to do? by phuturephunk · · Score: 5, Insightful

    . . Its just like any other period of mass adoption of technology in Human history . . I mean, look at the way England and the United states manufactured materials before the beginning of last century . . Smokestacks belching unfiltered by product into the skies and run-off pipes dumping raw sewage into the rivers and seas . . There's a honeymoon period where everybody's eating up the tech and the whole issue of 'cost' other than the bottom line for materials really isn't taken into account . . Only sometime after the initial binge do people finally standup with that hangover and see the potential damage that the consumption really causes . .Now Environmentalists will kvetch about it for a while and we'll go through the cycle of upgrading the process so its greener . . .Its the beauty of innovation :) . . And plus, its pure entertainment to watch both sides hurl statistics at each other with such vicious aplomb . . ;) . . .

  12. Re:And what are we supposed to do? by tjensor · · Score: 3, Insightful

    The only thing that you can do - tax those who do not clean up their act.
    A large company will allways try and producs cheaply . If it becomes too expensive to produce chips using "Dirty" methods you an just bet they will find "Clean" methods to reduce their margins.

    --
    <fnord>OBEY</fnord>
  13. I make waste, too by MobileDude · · Score: 4, Insightful

    Last time I checked, *everything* we do has some form of by-product that could be considered waste. Heck, I can turn a bowl of beans into a mean ol' cloud of gas.

    What they fail to mention is the benefit of the chip manufactured. Cost/Benefit - sound familiar?

    This article is just reason # 87 why I cancelled my SciAm subscription earlier this year after 15 years of subscribing. They've veered from true science and now feel the need 'preach' environment, evolution, abortion, etc. in the monthly Editor's Perspectives (and various articles).

    --
    10 MD .\crash 20 CD .\crash 30 GOTO 10
    1. Re:I make waste, too by gosand · · Score: 5, Interesting
      This article is just reason # 87 why I cancelled my SciAm subscription earlier this year after 15 years of subscribing. They've veered from true science and now feel the need 'preach' environment, evolution, abortion, etc. in the monthly Editor's Perspectives (and various articles).

      I have subscribed for about 6 years, and I noticed that there have been more environmental articles, but I don't consider them to be preachy. They give some good environmental data, and ususally don't go into too much politics about it. I know recently there was a story on how some impoverished countries get a lot of our scrap electronics, and how they salvage metals from them. They point out how toxic this is to the people and the water supplies there. I like finding out about this stuff, because nobody else is reporting on it. We use a LOT of microchips, as do other countries. We need to know that there are dangers in this. Granted, I haven't read this article yet (I am a couple of months behind on my issues) but I'll bet that they are simply pointing out the environmental hazards of chip production, and as chip use increases, the hazards increase. Why is this such a bad thing to know? The more chips we produce, hopefully the better our processes will become, and eventually we will come up with a replacement technology that will make silicon obsolete. Hopefully this new technology will be more friendly to the environment. I'm no Moby, calling the turkey hotline to save the widdle turkeys, but I think we do need to consider our environment.

      --

      My beliefs do not require that you agree with them.

    2. Re:I make waste, too by mesocyclone · · Score: 3, Insightful

      I still have my subscription, after 40 years of reading the magazine.

      But I really don't like the way the magazine is going. It has long had a bit of a political skew (it frequently ran articles on nuclear deterrence, for example, which is hardly a scientific policy).

      But it is really sad what is happening now. The percentage of science articles to environmentalist articles is declining. Sure, there are scientific issues with the environment, but it is a small part of overall science. Where are the major physics articles? Why are most biology articles now about species diversity or global warming impact on the biota, or whatever?

      The answer is simple: the magazine has become a shill for a particular viewpoint.

      If one wants to see how biased it has gotten, and how the editors consider pushing their viewpoint more important than informing the public on science, just look at how they handled the debate over "The Skeptical Environmentalist." They spent 14 pages debunking it, with articles that were more venom and ad-hominem than scientific. They forced the author to take down his point-by-point refutation from his website (copyright violation, they said, even though it was obviously fair use).

      Another example is how they treated Forrest Mims on the Amateur Scientist issue. Forrest Mims is an anti-evolutionist, which is unfortunate. But he is also very good at the sort of thing that the Amateur Scientist used to be known for: doing practical science experiments and building interesting scientific gadgets. They hired him for the job, then found out he was anti-evolutionist, and promptly dropped him.

      I see no place for anti-evolutionist views in Scientific American, but he had promised not to put those views into his work. It appears that he was sacked just because they couldn't stand to have a person whose *private views* disagreed with them.

      The result of the bias and changed focus at SciAm shows. The magazine is shrinking. Obviously they are having financial troubles. I am afraid that this 150 year old American classic is doomed to extinction. Its great tradition is being destroyed by those who want to inject their political views into every aspect of life.

      --

      The only good weather is bad weather.

  14. getting better! by lopati · · Score: 5, Informative

    at least from the intel press release :D

    The new manufacturing technology enabled by the 300-mm technology also provides significant benefits from an environmental perspective. The chips manufactured in Fab11X will require less water and generate fewer emissions per chip than other fabs. Water and chemical use will be more efficient. When compared to a 200-mm facility Fab 11X will produce 48 percent less volatile organic compound emissions, use 42 percent less ultra pure water and will use approximately 40 percent less energy.

  15. Re:and... by tjensor · · Score: 5, Insightful

    Yes but it doesnt have to be those countries that stand up to them. The consuming countries can do it just as effectively. The US and/or Europe alone could do it by simply saying "Show us an audited trail of how you produced these chips. For every gram of crud you produce thats an extra 10% sales tax".

    The manufacturers need these markets. If the markets dont like the manufacturers methodds, they can force them to change.

    --
    <fnord>OBEY</fnord>
  16. How about solar cells? by Deton8 · · Score: 3, Interesting

    One thing I've often wondered is whether a typical solar cell produces more energy in its lifetime than it takes to manufacture it?

    1. Re:How about solar cells? by chrysrobyn · · Score: 4, Informative

      One thing I've often wondered is whether a typical solar cell produces more energy in its lifetime than it takes to manufacture it?

      I'm sorry I can't cite a reference, but it was either Home Power magazine or the US Department of Engergy that claimed solar cells pay for their energy (in terms of CO2 emissions) after 2-5 years of use, depending on location. 2 closer to the US Southwest, 5 closer to the Canadian border.

  17. Re:And what are we supposed to do? by kevlar · · Score: 4, Insightful

    The problem with reports like this is that you never know precisely what the unbias facts are. In a world where the majority of conservationist organizations are run by zealots who practically hate civilization altogether, you never know who you can trust.... and it only hurts their cause. In this case, nobody is going to stop using computers or even pay attention to this article.

  18. Yeah, but whatcha gonna do? by Rogerborg · · Score: 3, Interesting

    Don't worry, our grandkids can clean it up. Luckily, they'll have plenty of oil wealth to help them do it.

    No, wait...

    </sarcasm> aside, this just goes to show that capitalism means cutting off your nose to pay for your facelift.

    Oh, sorry, my <sarcasm> must have been nested, along with a <mixed metaphore>. But really, why is this a suprise to anyone? Our entire economy is based on the premise that the lowest bidder is always the best one. Without artificial (read: gubmint) controls (which we're not going to get under undisputed reign of George II), using the cheapest process without regard for the consequences is inevitable. It's actually the fiduciary duty of the execs in these industries to do this! If they were to switch to using a cleaner (but more expensive) process, they'd be sacked at best, and quite probably sued by their shareholders.

    --
    If you were blocking sigs, you wouldn't have to read this.
  19. 1.6kg fossil fuel by jolshefsky · · Score: 3, Insightful

    It's interesting that it takes just about the same 1.6kg of fossil fuel to drive 10 miles to a store and back to buy that chip. Curious.

    --
    --- Jason Olshefsky

    Karma: Poser (mostly affected by adding this line long after everyone else did)

  20. Cost benefit analysis by panurge · · Score: 5, Insightful
    Every time I send a 5Mb file by internet, that is packaging and carriage that has been avoided.

    Every time I use conferencing over the internet, I am saving (typically) about 30lb of Diesel (and it would have been nearer 45lb of gas in my last car)

    I'm not arguing that we should ignore the environmental costs of technology - places like the former Communist block and Texas are unpleasantly polluted as a result of doing just that - but that we should look closely at the costs and benefits. Given the potential of global warming and the eventual runout of oil, the more we use silicon to reduce the number of boring journeys we have to do, whether by mobile phone, networked computer, or whatever, the better it is going to be for us.

    And for those who don't already know - substances like sulfuric acid and HF are widely used in the petrochemical industry. And what happens to all the sulfur they have to remove to get low-sulfur fuel? It surely doesn't get fired into space by a rail gun.

    --
    Panurge has posted for the last time. Thanks for the positive moderations.
  21. Re:Yes, it's true by shilly · · Score: 4, Informative

    He means "There ain't no such thing as a free lunch" (TANSTAAFL). This acronym was introduced by Robert Heinlein, who is sometimes also cited as the originator of the phrase as well. It features in "The Moon is a Harsh Mistress" and several of his other books as well. Robert Heinlein was one of the most popular science fiction authors of the 20th century, especially in the US. It's not such an obscure phrase, given Slashdot's audience.

  22. Something the article doesn't mention... by cowbutt · · Score: 5, Interesting
    ...is the net conservation of resources and energy by the use of semiconductors. For example, if by having a PC and internet connection at home, it becomes possible to work from home, I wouldn't be surprised if the breakeven point between that and driving to work was reached very quickly.

  23. Oh, I absolutely agree. by Gruneun · · Score: 5, Insightful

    Our entire economy is based on the premise that the lowest bidder is always the best one.

    That explains why everyone here drives a Yugo, eats Big Top-brand cereal, and writes their posts from an eMachine.

  24. taxes? by fluor2 · · Score: 3, Insightful

    here in norway we allready have enviroment-taxes on things like tv's and pc's.

    i only wonder if the taxes actually will help lower the pollution to the environment.

  25. Huh? by autopr0n · · Score: 3, Insightful

    If you read the NYT article it makes it sound more like those Africans would be sitting around starving or something if it wasn't for the coltan mining jobs. I mean god forbid someone should do manual labor in the outdoors... it's just horrid!

    I'm not saying that people should be digging in animal preserves, but that is 'illegal' over there.

    If you read the article, the author seems to think that self-righteous bans on material from certain countries, as well as the tech slump are causing more harm to people then the mining system.

    --
    autopr0n is like, down and stuff.
  26. Re:It's an add-subtract thing! by panurge · · Score: 4, Insightful
    Yes, this is a valid point. In my time I have built a number of systems for environmental monitoring and waste control, and the cost/benefit can be enormous (savings of tonnes of chemicals every year using a small box with little more than a PIC processor and a few analog devices.)

    Someone said elsewhere I was missing the point, and that silicon manufacturing processes need to improve. OF COURSE. But what drives the improvement is that it is invariably CHEAPER in the end to make things using best environmental practice, unless the State gives the manufacturer a dispensation from paying the costs of the environmental damage - a statist subsidy. And it is usually cheaper anyway because of the savings on materials and consumables. As an example, one project I looked at (to prevent the discharge of cesium by monitoring the composition of a bath and reprocessing it) had a payback of about a week based on the cesium savings alone: the management simply didn't know what was going on in their own plant and had accepted the costs blindly. In another project, a closed loop treatment plant turned out to be cheaper than open-loop because the cost of the electronics was more than offset by the smaller outlet holding tank that was required. I could go on and on...but then, I got into the computing business because you can, actually, do much more interesting things with silicon than make Word or Quake run faster.

    --
    Panurge has posted for the last time. Thanks for the positive moderations.
  27. If only there were a 'TRUE' moderation by sweatyboatman · · Score: 3, Insightful

    or perhaps a 'Regretfully True'

    judging by some of the posts here there are a lot of people who think it doesn't really matter. As long as their CPU isn't burning a hole through their desk, who cares.

    And when the computer's thrown away and the components start to leak out... ah well, it isn't my computer anymore. I threw it away. I have this new shiny computer with twice the RAM and 120GB RAID-5 blah blah blah blah blah...

    My point isn't that we techies should stop using computers, but that we should at least be a little concerned about what it's costing us in the long run.

    Sweaty

    --
    It breaks my pluginses, my precious!
  28. Who's afraid of H2SO4? by Phronesis · · Score: 3, Informative

    HF, H2SO4, etc. are nasty, but easy to neutralize. If you neutralize them, they become aqueous solutions of relatively benign salts. The problems are more with organic solvents that have to be burned at high temperature and with heavy metals that cannot be rendered safe, but must be segregated from the environment.