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New processes push technology to the verge of commercialization

International Business Machines, Inc. (IBMis among the companies racing to develop nanophotonics -- on-die light based signaling components -- which can be incorporated directly side-by-side with traditional silicon-based electronics using traditional manufacturing techniques like complementary metal-oxide semiconductor (CMOS).

Currently, signals between components like the processor cores and the memory crawl along as electrons along copper-based wires.  In the new scheme modulators (which create the signal, often using a ring), wave-length multiplexers (which route signals), switches (which turn signals on or off), and detectors (which receive signals) are baked onto silicon chips connected by fiber optics.  Signals then travel at the speed of light along fiber optic channels.

After first demoing the technology in crude proof-of-concept form back in 2010, IBM has returned with the world's smallest announced CMOS-compatible nanophotonics processes.  The company showed off chips this week that were build on a traditional 90 nm CMOS node, a node far smaller than earlier prototypes.

IBM wave guide
Blue optical wires are shown accelerting the "slow" copper wire (orange) traffic.

IBM says the technology is "primed for commercial development" and will soon be ferrying "terabytes of data between distant parts of computer systems".  In a demo IBM showed off 25 gigabytes-per-second (GBps) transfer rates, a speed typically seen in bulky telecommunications fiber-optics equipment, not in PC interconnects, which crawl along at megabytes-per-second (or around 1 Gbps for high-speed PCI-express lanes).

The hope is that the new interconnects will soon pump internal and external communication up to speeds of up to thousands of times the current technology.

Dr. John E. Kelly, Senior Vice President and Director of IBM Research, remarks, "This [latest showcased] technology breakthrough is a result of more than a decade of pioneering research at IBM.  This allows us to move silicon nanophotonics technology into a real-world manufacturing environment that will have impact across a range of applications."

The IBM research fellow and SVP will be showing off his work in a paper at the IEEE International Electron Devices Meeting (IEDM), which is being held this week in San Francisco, Calif.

Sources: IBM [1], [2]



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Wrong acronym
By kingmotley on 12/10/2012 1:40:56 PM , Rating: 2
quote:
In a demo IBM showed off 25 gigabytes-per-second (Gbps) transfer rates


No, Gbps is gigabits-per-second. Which is 1/8th the speed of gigabytes-per-second.




RE: Wrong acronym
By greywood on 12/10/2012 7:36:45 PM , Rating: 2
Uhh.. look again, dude. They really did say giga bytes per second - (GBps) as in capital "B". That SCREAMS!!


RE: Wrong acronym
By Kyuu on 12/10/2012 9:56:18 PM , Rating: 2
According to the source article, it's Giga bits per second (G b ps). Mick either got it wrong, or is basing the G B ps on a different source. I think Gbps is more likely, given that serial connections are usually measured in bits, not bytes.


RE: Wrong acronym
By LRonaldHubbs on 12/11/2012 5:56:00 AM , Rating: 2
kingmotley is correct. The source article from IBM says 25G b ps.


RE: Wrong acronym
By Chocobollz on 12/11/2012 1:12:00 PM , Rating: 2
I think it should have been written as either Gibibit/s or Gibibyte/s to avoid confusion >.>


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