IBM Announces Chip Morphing Technology 118
An anonymous reader writes "IBM has announced that it is now capable of producing self-healing chips. From the article: 'eFUSE works by combining software algorithms and microscopic electrical fuses, opposed to laser fuses, to produce chips that can regulate and adapt their own actions in response to changing conditions and system demands.' It goes on to say that the IBM system is more robust than previous methods, and that the chips are already in production. The future is here!"
Awesome (Score:2, Insightful)
wish it were more descriptive (Score:3, Insightful)
nothing is mentioned abt the redundancy required for the reroutings... its obvious not all kinds of faults can be handled this way. so, do they try to predict possible faults and build in workarounds.. or do they just use the natural design to handle whatever can be ?
wish the article had more info...
Artificial Intelligence/Life (Score:2, Insightful)
With a limit? (Score:5, Insightful)
If it's capable of re-routing certain path when something went wrong, it'll eventually run out of alternative path, or the performance will be degraded to next to useless.
However it's certainly a good pre-emptive tool for mission critical machines, provided it has a way of informing the admin that it's dying, rather than secretly degrading.
On-Chip Sparing (Score:3, Insightful)
Article lacking detail... but... (Score:4, Insightful)
I think it is very interesting that they are using something that was considered to be bad in chip reality (electromigration), as a positive thing.
This is, in analogy, like how our bodies exist symboticly with many different germs and such, for without we'd die alot sooner.
I don't think what the article is talking about is anything like reprogrammable chips (FPGAs) as some may think by reading the article, but rather something automatically used once between the chip production line and its actual ongoing system use to auto test and correct any production anomolies per chip. (is this where we say bye bye Neo?)
Re:Overclocking made safer. (Score:4, Insightful)
Potentially disastrous for desktop CPU's (Score:3, Insightful)
Think about the latest worm going around taking your nice new 3200Mhz processor to an effective 100mhz by blowing all the fuses and crippling it.
I would guess though, because of the high R&D costs involved, this will only ever see its way into high-end servers.
Download an MP3, Blow Up your CPU? (Score:4, Insightful)
IBM better be REAL carefull with this too. If it's possible to fool the chip into blowing these fuses, a virus could potentially damage millions of computers in a day of spreading.
As others mentioned, it is a neat trick, but a solution in search of a problem. CPU's just don't fail all that often to need something like this.
Memory - not logic (Score:2, Insightful)
From the article, it appears this innovation applies to the embedded memory on a logic chip:
"...all 90 nanometer custom chips, including those designed with IBM's advanced embedded DRAM technology"
Precisely. Not self-healing. (Score:1, Insightful)
Self-healing would be something completely different, imho -- the ability to rebuild damaged circuitry from some kind of schematic or remaining information, or maybe the ability to fall back to general instructions on the main CPU if a specialist unit like a GPU failed.
Re:if it aint broke... (Score:3, Insightful)
Re:Overclocking made safer. (Score:2, Insightful)
Using fuses seems best suited for small runs where your design is pretty fixed and you don't want to foot the bill for a custom chip mask. Like programmable logic arrays, etc...
So if conditions change with the environment these chips are in, they blow some fuses to respond. If conditions change back to where they were before the chip blew fuses, oh well. Some sort of nonviolate ram seems more in order for "adaptive" technology, heck regular PC cmos adapts handily to new hard disks for instance.
It is worth noting that it seems the real breakthrough is in the actual improvement in fuse technology (from the article):
By avoiding the rupture, IBM claims to have perfected a technique to harnesses electromigration and uses it to program a fuse without damaging other parts of the chip.
Maybe its just the press release that slants this toward being "adaptive" technology.