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. 29, 2019
Filed:
Jun. 23, 2015
Applicant:
Cadence Design Systems, Inc., San Jose, CA (US);
Inventors:
Akash Khandelwal, Cupertino, CA (US);
Pawan Kulshreshtha, San Jose, CA (US);
Rajarshi Mukherjee, San Jose, CA (US);
Chih-kuo Yu, San Jose, CA (US);
Assignee:
Cadence Design Systems, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01); G01R 31/317 (2006.01);
U.S. Cl.
CPC ...
G06F 17/505 (2013.01); G06F 17/5031 (2013.01); G01R 31/31725 (2013.01); G06F 2217/84 (2013.01);
Abstract
A system and method for generating standard delay format (SDF) files is disclosed. For each timing closed hierarchical instance, timing arcs on internal register to register paths may be marked as zero delay arcs. If the zero delay causes a hold violation, an adjustment may be computed to fix the violation. If the adjustment does not cause a setup violation, the adjustment may be applied to the end point register.