By Katherine Derbyshire
It’s a central problem of integrated circuit scaling. While transistor delay goes down along with channel length, interconnect delay goes up. The 90 nm technology node featured a transistor delay of about 1.6 ps, while a 1 mm long interconnect wire added about 5x102 ps. For the 22 nm node, the ITRS estimates transistor delay at 0.4 ps, but interconnect delay at abou...
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