Physically aware test patterns in semiconductor fabrication

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United States of America Patent

PATENT NO 9922163
SERIAL NO

15203954

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Abstract

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A method for fabricating a circuit comprises identifying a target on the circuit with a transitional sensitivity, determining a test pattern that stresses the target, generating a verification model at the hierarchy of the target, creating a pattern and translating the pattern into a verification assertion, running the verification with the translated pattern, determining whether the verification assertion is a possible verification assertion following the running of the verification, obtaining a state of source latches and pin inputs responsive to determining that the formal verification assertion is a possible verification assertion following the running of the formal verification, translating the formal verification assertion into a coverage event, running a simulation with the coverage event, determining whether the coverage event occurred, and creating a manufacturing test responsive to determining that the coverage event occurred.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huott, William V Holmes, US 84 522
McIvain, Kevin M Delmar, US 2 2
Patel, Samir K Wappingers Falls, US 8 68
Van, Huben Gary A Poughkeepsie, US 52 1370

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