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.

Date of Patent:
Aug. 16, 2022

Filed:

Aug. 07, 2020
Applicant:

Synopsys, Inc., Mountain View, CA (US);

Inventors:

Kai-Ping Wang, Fremont, CA (US);

Wencai Zheng, Shanghai, CN;

Deepak Sherlekar, Cupertino, CA (US);

Xiaolin Yuan, Shanghai, CN;

Assignee:

Synopsys, Inc., Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 30/327 (2020.01); G03F 1/42 (2012.01); G06F 111/04 (2020.01);
U.S. Cl.
CPC ...
G06F 30/327 (2020.01); G03F 1/42 (2013.01); G06F 2111/04 (2020.01);
Abstract

A method includes generating a first bitmap for a cell. The first bitmap is indicative of mapping constraints of the cell. The method also includes generating a second bitmap for a PSC filler cell. The second bitmap is indicative of the mapping constraints of the PSC filler cell. The method also includes a bitwise logical operation between a portion of the first bitmap and a respective portion of the second bitmap and determining a compatibility between the cell and the PSC filler cell based on at least a result of the bitwise logical operation.


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