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Power Up Analysis

harry84

I'm running SPICE simulation on a block(CDL netlist from ASIC flow as input file). Ramp the power and measure total area of current spike. From total area of current spike I can get how much decap I need.

The goal is to measure current spike get total area and decap value. The problem is, I want to remove SPICE simulation from above methodology cause SPICE simulation on very big design takes very long time.

My question 

How to get decap value or decap evaluation from ASIC flow ? I need advice on which tool or methodology that I can use to get same result.

p/s : I'm very new to ASIC flow and thanks for the advice.

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