The Honest Process Guy
Honesty about process technology is as rare as hens’ teeth these days, so ST’s CTO appeared as a refreshing incarnation of truth at ST’s investor day in London yesterday.
Talking about ST’s 28nm and 14nm second source deal with Globalfoundries, Jean-Marc Chery, ST’s CTO, said: “Today what people call 14nm is actually 20nm – it’s the same for everyone.”
For instance, everyone knows that Intel’s 22nm process is actually 26nm – taken from the measure of the gate length.
Similarly ST’s 28nm FD-SOI process is actually a 24nm process measured by gate length.
A 2nm difference in gate length shows Intel’s much-vaunted process lead is not so big as it might appear.
The gate length on ST’s 20nm/14nm process is 18nm.
Interestingly, it transpires that TSMC’s 16nm process was so named because 14 is an unlucky number in Chinese.
So much for science.
, jean marc
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