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:
Feb. 05, 2019
Filed:
Apr. 04, 2017
Globalfoundries Inc., Grand Cayman, KY;
Andrey A. Lutich, Dresden, DE;
GLOBALFOUNDRIES INC., Grand Cayman, KY;
Abstract
Embodiments of the disclosure provide a method including: identifying a target feature in an integrated circuit (IC) layout not represented in a library, the library including a plurality of sub-resolution assist feature (SRAF) usefulness maps corresponding to a plurality of features and SRAFs in the IC layout; generating a usefulness map for the target feature with an artificial neural network (ANN), the generating being based on the target feature and the plurality of SRAF usefulness maps in the library; adding the target feature and the generated usefulness map to the library; selecting an SRAF insertion site for the target feature based on the generated usefulness map; and inserting an SRAF for the target feature into the IC layout at the selected SRAF insertion site.