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Accurate and Accurate and Efficient SSN Modeling

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Driver Models<br />

� Need to accurately model Signals<br />

<strong>and</strong> dPPower<br />

� Obtain transistor level models if at<br />

all possible<br />

� IBIS tends to be pessimistic<br />

because current scales linearly<br />

with ihiincreased ddi drivers<br />

� Verify waveforms for single<br />

driver AND during SSO<br />

˃<br />

Spice IBIS<br />

Rail Collapse<br />

During SSO<br />

Lab

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