How to solve the BEOL RC delay problem?
posted on November 21, 2017 13:01
With the 7nm technology node in the development phase and the 5nm node moving into development, transistor scaling gets ever more complex. On top of that, the performance benefits gained at the front-end-of-line (i.e., the transistors) can easily be undone if the back-end-of-line can’t come along. BEOL processing involves the creation of stacked layers of Cu wires that electrically interconnect the transistors in the chip. Today, high-end logic chips easily have 12 to 15 levels of Cu wires.
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