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:
May. 11, 2021
Filed:
Aug. 13, 2020
Taiwan Semiconductor Manufacturing Company Ltd., Hsinchu, TW;
Ravi Babu Pittu, Andhra Pradesh, IN;
Li-Chung Hsu, Hsinchu, TW;
Sung-Yen Yeh, Pingtung County, TW;
Chung-Hsing Wang, Hsinchu County, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD., Hsinchu, TW;
Abstract
A method includes: identifying a timing path of a logic circuit; determining a Boolean expression at an internal node in the timing path; providing a DC vector having a plurality of forms; determining a Boolean value at the internal node for each of the forms based on the Boolean expression; determining a quantity of stressed transistors in the timing path for each of the forms separately based on the respective Boolean value; and determining a best-case form, associated with an aging effect of the logic circuit, and a worst-case form, associated with the aging effect, out of the forms based on the quantities of stressed transistors.