IBM debuts CMOS silicon nanophotonics

Silicon chips will be communicating with pulses of light instead of electrical charge starting in 2011, according to International Business Machines Corp., which described its CMOS Integrated Silicon Nanophotonics (CISN) technology Wednesday (Dec. 1) at a tradeshow.

At Semicon Japan in Chiba, Japan, IBM (Armonk, N.Y.) heralded silicon nanophotonics as the enabler for future exascale processors that can execute a million trillion operations per second (1,000-times faster than today's petascale supercomputers).