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:
Aug. 23, 2022
Filed:
Aug. 03, 2020
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Hidehiro Fujiwara, Hsinchu, TW;
Chih-Yu Lin, Taichung, TW;
Sahil Preet Singh, Hsinchu, TW;
Hsien-Yu Pan, Hsinchu, TW;
Yen-Huei Chen, Hsinchu, TW;
Hung-Jen Liao, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Co. Ltd., Hsinchu, TW;
Abstract
The disclosed write assist circuit can include a control circuit and a voltage generator. The control circuit can be configured to receive memory address information associated with a memory write operation for memory cells. The voltage generator can be configured to provide a reference voltage to one or more bitlines coupled to the memory cells. The voltage generator can include two capacitive elements, where during the memory write operation, (i) one of the capacitive elements can be configured to couple the reference voltage to a first negative voltage, and (ii) based on the memory address information, both capacitive elements can be configured to cumulatively couple the reference voltage to a second negative voltage that is lower than the first negative voltage.