Charge-Borrowing Decap: A Novel Circuit for Removal of Local Supply Noise Violations
Xiongfei Meng, Resve Saleh, and Steve Wilton
IEEE Custom Integrated Circuits Conference, Sept 2009
Abstract
We propose a novel circuit called charge-borrowing
decap (CBD) as a drop-in replacement for passive decaps to
reduce supply noise for removal of "hot-spot" IR-drop problems
found late in the design process. Measurement results on a 90nm
test chip show that a noise reduction improvement between 42%-
55% at 100MHz-1.5GHz over its passive counterpart.
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