System and methodology for determining layout-dependent...

Computer-aided design and analysis of circuits and semiconductor – Integrated circuit design processing

Reexamination Certificate

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Reexamination Certificate

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08037433

ABSTRACT:
A layout of a semiconductor circuit is analyzed to calculate layout-dependant parameters that can include a mobility shift and a threshold voltage shift. Layout-dependant effects that affect the layout dependant parameters may include stress effects, rapid thermal anneal (RTA) effects, and lithographic effects. Intrinsic functions that do not reflect the layout-dependant effects are calculated, followed by calculation of scaling modifiers based on the layout-dependant parameters. A model output function that reflects the layout-dependant effects is obtained by multiplication of each of the intrinsic functions with a corresponding scaling parameter.

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