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:
Jun. 28, 2022
Filed:
Jun. 17, 2020
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Jinn-Yeh Chien, Chu Bei, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
An integrated circuit includes a first circuit having a loopback path electrically coupled to an inverter and a test circuit having a controller and a counter. The test circuit is electrically coupled to the first circuit, and the controller is configured to select the loopback path. The first circuit is configured to receive a first voltage signal and to generate an oscillating signal from the received first voltage signal. The first voltage signal is either a substantially low logic level signal or a substantially high logic level signal. The counter is configured to count oscillations of the oscillating signal.