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:
Jul. 11, 2023

Filed:

Jul. 01, 2021
Applicants:

Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;

Tsmc Nanjing Company, Limited, Jiangsu, CN;

Inventors:

Sandeep Kumar Goel, Hsinchu, TW;

Ankita Patidar, Hsinchu, TW;

Yun-Han Lee, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 30/323 (2020.01); G06F 30/3323 (2020.01); G06F 30/392 (2020.01); G06F 30/394 (2020.01); G03F 1/70 (2012.01); G06F 119/12 (2020.01);
U.S. Cl.
CPC ...
G06F 30/323 (2020.01); G03F 1/70 (2013.01); G06F 30/3323 (2020.01); G06F 30/392 (2020.01); G06F 30/394 (2020.01); G06F 2119/12 (2020.01);
Abstract

A method of manufacturing a semiconductor device includes reducing errors in a migration of a first netlist to a second netlist, the first netlist corresponding to a first semiconductor process technology (SPT), the second first netlist corresponding to a second SPT, the first and second netlists each representing a same circuit design, the reducing errors including: inspecting a timing constraint list corresponding to the second netlist for addition candidates; generating a first version of the second netlist having a first number of comparison points relative to a logic equivalence check (LEC) context, the first number of comparison points being based on the addition candidates; performing a LEC between the first netlist and the first version of the second netlist, thereby identifying migration errors; and revising the second netlist to reduce the migration errors, thereby resulting in a second version of the second netlist.


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