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. 25, 2021
Filed:
Jan. 30, 2020
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Kuoyuan (Peter) Hsu, San Jose, CA (US);
Jacklyn Chang, San Roman, CA (US);
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
A memory circuit includes: memory cells each including a storage transistor having a first configuration; and a tracking circuit including: a tracking bit line having first and second intermediary nodes; a tracking word line; a first finger circuit (coupled between the first intermediary node and a reference voltage node) including: a first set of first tracking cells, each including a first shadow transistor having the first configuration; and a second finger circuit (coupled between the second intermediary node and the reference voltage node) including: a second set of second tracking cells, each including a second shadow transistor having the first configuration; gate terminals of the first and second shadow transistors being coupled with the tracking word line; and a switch configured to selectively couple the first intermediary node with the second intermediary node and thereby selectively couple the first and second finger circuits in parallel.