Slashdot Mirror


DARPA Has an Ambitious $1.5 Billion Plan To Reinvent Electronics (technologyreview.com)

The Defense Advanced Research Projects Agency (DARPA), which funds a range of blue-sky research efforts relevant to the US military, last year launched a $1.5 billion, five-year program known as the Electronics Resurgence Initiative (ERI) to support work on advances in chip technology. It has now unveiled the first set of research teams selected to explore unproven but potentially powerful approaches that could revolutionize US chip development and manufacturing. From a report: The ERI's budget represents around a fourfold increase in DARPA's typical annual spending on hardware. Initial projects reflect the initiative's three broad areas of focus: chip design, architecture, and materials and integration. One project aims to radically reduce the time it takes to create a new chip design, from years or months to just a day, by automating the process with machine learning and other tools so that even relatively inexperienced users can create high-quality designs.

"No one yet knows how to get a new chip design completed in 24 hours safely without human intervention," says Andrew Kahng of the University of California, San Diego, who's leading one of the teams involved. "This is a fundamentally new approach we're developing." William Chappell, the head of the DARPA office that manages the ERI program, said, "We're trying to engineer the craft brewing revolution in electronics." The agency hopes that the automated design tools will inspire smaller companies without the resources of giant chip makers, just as specialized brewers in the US have innovated alongside the beer industry's giants.

13 of 66 comments (clear)

  1. The 'Matter Compiler' approach by Rick+Schumann · · Score: 4, Insightful

    I'm beginning to think that we're reaching the limits of what we can do with the laser lithography method of silicon IC creation. For instance look at the problems Intel is having with 10nm fabrication right now. Perhaps the way forward is straight out of science fiction: a matter compiler/3D printer-like approach, where an integrated circuit is built up an atom or a molecule at a time? Pure imagination on my part, but is it really out of our reach?

    1. Re:The 'Matter Compiler' approach by Nidi62 · · Score: 4, Insightful

      Doesn't seem that far out of reach theoretically. However, as in all things, the practical cost effective reach seems a long way off.

      A lot of things *could* be done, but we don't do them because they are too expensive or better/cheaper/faster options exist so we use the other options.

      Isn't that precisely what DARPA is for, though? Fund research that is cutting edge, highly speculative, or too long term for private companies to undertake? A lot of the technology and techniques that DARPA develops eventually makes it's way to the civilian market as well.

      --
      The only thing necessary for evil to triumph is for it to be pitted against a slightly greater evil
    2. Re: The 'Matter Compiler' approach by Anonymous Coward · · Score: 3, Informative

      AMD seems to be doing just fine with 7nm, so not sure how Intel sitting on their hands relates to this.

    3. Re:The 'Matter Compiler' approach by bobbied · · Score: 2

      Oh sure, but DARPA has a limited budget and needs to be throwing it's money towards the ideas that have the greatest possibility of paying a dividend on the investment. So if there are other more promising ideas that are higher on the cost/reward estimates, they will be funded first.

      But my post wasn't about DARPA. It was about the development in technology in general.

      --
      "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
    4. Re: The 'Matter Compiler' approach by NicknameUnavailable · · Score: 2

      Intel is backing the spectre/meltdown fixes into the "10nm" line to avoid spooking investors. It's a multi-year (at least) redesign because they have to completely reengineer their platform in order to get the backdoors fixed (without breaking the intentional backdoors.)

    5. Re:The 'Matter Compiler' approach by cdibbs · · Score: 2

      Maybe they should start by making computing reversible. https://spectrum.ieee.org/comp... If they don't, then they'll run into temperature problems, regardless of the IC creation method.

    6. Re:The 'Matter Compiler' approach by tlhIngan · · Score: 2

      I'm beginning to think that we're reaching the limits of what we can do with the laser lithography method of silicon IC creation. For instance look at the problems Intel is having with 10nm fabrication right now. Perhaps the way forward is straight out of science fiction: a matter compiler/3D printer-like approach, where an integrated circuit is built up an atom or a molecule at a time? Pure imagination on my part, but is it really out of our reach?

      Actually, modern ICs are done at the atom level buildups - to create the strained silicon that we use today requires subjecting the wafers to vapor deposition that literally grows the surfaces atom by atom.

      The problem with 10nm is not the photolithographic process - we've outdone ourselves in this technology. It's the fact that at 10nm, transistor gate lengths are starting to be measured in the realm of atoms - with gate insulation thicknesses being a handful of atoms (which can easily lead to leakages). Add to this quantum effects - tunneling and the like and you get leaky transistors that consume a lot of power and generate heat.

      Also remember that the only circuit elements that use the smallest dimensions are transistor dense ones - memory blocks. Things like general logic in a processor a wire-constrained (you are limited by how much wiring you can stuff between transistors and not the transistor size themselves), which is why they always fab tons more transistors than are needed, but still way larger than minimum size.

      Thus, leaky transistors are in places where you don't want them to leak - generally memory cells where leaky charges mean bit flips.

  2. Re:Uh..... by optikos · · Score: 5, Informative

    eliminating the thousands or tens of thousands of timing violations. ASIC development goes a compilation process of source code not entirely different than software. The challenge of ASIC design is locating everything just right so that distance is globally nearly-minimized (local optima but near the global optimum) to get all the electron pulses to arrive where they need to arrive before it is too late. Plus, each logic gate costs a time delay (as well as occupies space exacerbating the distance problem). So another trick to solve timing violations is to simplify the design is some locality to lessen the depth of gates that a signal/calculation/operation must traverse, when viewed as a directed-acyclic graph (DAG). Sometimes space (# of gates) can be bloated up to decrease the depth of the walks of the logic-gate DAG (but then that increases area on the die, which exacerbates the distance problem).

  3. Re:Uh..... by Austerity+Empowers · · Score: 4, Interesting

    Not to mention that the tools that area already automated to *assist* with this stuff are buggy as fuck, and EDA companies software development practices make Microsoft look good.

    But more power to DARPA, the more that can be automated, the more that can be accomplished. Chip design is still so expensive that only a few people with very deep pockets can participate.

  4. Re:FPGA by Austerity+Empowers · · Score: 3, Insightful

    FPGAs have advanced a lot in 20 years, but they are the moral equivalent of running your code under Java. That's not at all what they do, but their ability to configure on the fly comes at a very high cost in terms of frequency, power and area. A custom chip is always going to be faster, smaller and cheaper (COGS wise).

    It's true that FPGA mfg's could do more to enable other tools, but their motivation is very weak.

  5. Not with this one by evanh · · Score: 2

    Given all the design work is done on the workstation by typing a lot of HDL code and doing spice simulations and maybe even some layout work, the particular focus of this one is purely a software investment.

  6. Re: Uh..... by Type44Q · · Score: 2

    I don't know but obviously it's bullshit; I didn't see any mention of "AI" anywhere.

  7. So terrific for the economy by rbrander · · Score: 4, Insightful

    Basic research! Nothing more likely to "fail" in the commercial sense, and so hated by free market companies that hate risk (all of them); nothing more likely - longer term - to come up with the big finds that create whole new economic sectors.

    Their "ARPAnet" idea wasn't even supposed to make money, that's the funny bit.

    With just a little luck, some of this research will end up creating whole new economic opportunities, which will result in a few people becoming billionaires, who will probably, with tiresome regularity, turn out to be libertarians who don't believe government can do anything useful and attempt to pay no taxes.

    Ah, those public bureaucrat-scientists struggling for grants: America's true Job Creators.

    (Juuuust kidding, of course. America's real job creators are consumers: without people putting butts in seats of the restaurant, neither the cooks&waiters, nor the restaurant owner, nor his banker, have any jobs.)