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IBM Creates World's Fastest Semiconductor Circuits
Todd Heidesch writes: "'IBM announced it has created the world's fastest semiconductor circuit, operating at speeds of over 110 GigaHertz (GHz) and processing an electrical signal in 4.3 trillionths of a second.'
IBM expects the new technology to be pumping out 100 gigabit/sec network switching chips by the end of the year (on an optimistic schedule, I presume)." dr_zeus contributes a link to this Reuters article running on Wired (also fairly thin) on the release, writing: "Granted, this isn't a PC chip, but one wonders how long it will be before we hear 'dude, you've got a 110GHz Dell!'"
What's the standard IBM response? 10 years to market, IIRC. Taken the time to fully develop the technology to manufacture more than one transistor in a lab, and distribute it as part of a chip.
A feeling of having made the same mistake before: Deja Foobar
One thing that they don't mention is how many transistors they have been able to put on a chip. I mean so what if you can run @ 110ghz if you can only put a hundred transistors on a chip.
First of all I suspect that this technology is simply too expensive for consumer chips. Even if it could be done cheap, I think they would need completely new fabrication facilities to make those chips, because the technology is based on a different compound. Fabrication facilities are not cheap and companies like to use the current ones enough to make them profitable before jumping ionto new ones. I also suspect that these chips might need a lot of power. That may make them unusable for home computers.
Almost makes you wonder if we'll move away from the 'big CPU, big whack of RAM' model to the 'bunch of little bitty CPUs, each with their own whack of RAM, and they do their own thing' model.
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The article does not clarify what is exactly running at 110GHz - it says a "circuit". Is it a single transistor? Or a series of transistors? Does that include wiring? It is a common misconception that a 110GHz transistor produces a 110GHz chip. A 110GHz transistor would likely produce a 1GHz chip.
This article is crap. If you're a real EE who knows about this stuff, please enlighten the rest of us by answering some questions: 1. I'm a little confused. Did IBM demonstrate a networking chip that runs at 110 GHz? Or did they merely demonstrate a ring oscillator type circuit? 2. I was under the impression that, to reach such high speeds, you need something like an HBT. Am I right? Is this circuit based on HBTs? 3. If this circuit is based on HBTs, then why are people talking about Pentiums and Athlons? No way in hell you could implement a VLSI (or rather an ULSI) circuit with HBTs. Am I missing something?
As shown by this article about genetic algorithms on FPGAs, even normal low-tech circuits are subject to quantum effects. (In essense, FPGA configuration evolved that inlcuded completely disjoint gates. Remove those seperate parts, and the actualy circuit suddenly failed to operate properly. Somehow, the one was influencing the other.)