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:
Feb. 28, 2017
Filed:
Oct. 01, 2015
Taiwan Semiconductor Manufacturing Company Ltd., Hsinchu, TW;
Pankaj Aggarwal, Hsinchu County, TW;
Jui-Che Tsai, Tainan, TW;
Cheng Hung Lee, Hsinchu, TW;
Chien-Yuan Chen, Hsinchu, TW;
Chiting Cheng, Taichung, TW;
Hau-Tai Shieh, Hsinchu, TW;
Yi-Tzu Chen, Hsinchu, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD., Hsinchu, TW;
Abstract
A memory device comprises a tracking control circuit for controlling the write operation or the read operation of the memory device. The tracking control circuit comprises a plurality of tracking cells, wherein the timing characteristics of the tracking cells emulate the timing characteristics of a bit cell during a write operation or a read operation of the memory device. The memory device further comprises at least two reference word lines for configuring the number of tracking cells of the tracking control circuit; and a selection circuit configured to activate one or more of the at least two reference word lines.