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:
Jul. 07, 2020
Filed:
Sep. 01, 2017
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Jinn-Yeh Chien, Chu Bei, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
An integrated circuit for testing a circuit includes a controller configured to select a loopback path of the circuit. The circuit includes a data path and an inverter, and each is electrically coupled to the selected loopback path. The integrated circuit includes a counter electrically coupled to the selected loopback path. The circuit is configured to receive a first voltage signal that is either a substantially low logic level signal or a substantially high logic level signal. The circuit is configured to generate an oscillating signal from the first voltage signal, and the counter is configured to count oscillations of the oscillating signal.