The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 1998
Filed:
Aug. 27, 1996
Mohamed S Moosa, Austin, TX (US);
Kelvin F Poole, Clemson, SC (US);
Clemson University, Clemson, SC (US);
Abstract
Systems, methods and computer program products for predicting defect-related failures in integrated circuits produced by an integrated circuit fabrication process identify objects in a circuit layout for the integrated circuit design, each object having a location in the circuit layout and a reliability connectivity in the integrated circuit design. Sample object defects are generated for the identified objects, each sample object defect representing a defect produced in an object by the integrated circuit fabrication process and having a defect magnitude associated therewith. An accelerated life defect influence model is identified for each sample object defect, relating the lifetime of an object to the defect magnitude of a defect in the object. Sample object lifetimes are generated from the defect magnitudes associated with the sample object defects according to the corresponding identified accelerated life defect influence models. A prediction of the reliability of integrated circuits is generated from the sample object lifetimes according to the reliability connectivity of the associated objects in the integrated circuit design. Preferably, the accelerated life defect influence models include log-linear regression models, which may include deterministic object lifetime functions, each relating the defect magnitude of the at least one sample object defect to one object lifetime value, and log-linear object lifetime distributions, each relating the defect magnitude of a sample object defect to a plurality of object lifetime values.