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:
Dec. 10, 2024
Filed:
Apr. 28, 2021
Csmc Technologies Fab2 Co., Ltd., Suzhou, CN;
Bin Chen, Wuxi, CN;
Youhui Li, Wuxi, CN;
Ming Gu, Wuxi, CN;
Xinmiao Zhao, Wuxi, CN;
Hao Wang, Wuxi, CN;
Shuming Guo, Wuxi, CN;
Zongchuan Wang, Wuxi, CN;
Nan Zhang, Wuxi, CN;
CSMC TECHNOLOGIES FAB2 CO., LTD, Jiangsu, CN;
Abstract
A semiconductor memory, comprising a negative voltage providing unit, which is used for providing a first negative voltage to a word line during a read operation, and comprises: a clamping unit that comprises an input end, a control end and an output end, wherein the input end is coupled to a common ground end of the memory, and the control end is used for receiving a first signal; an energy storage capacitor, a first end of which is coupled to the output end, and a second end that is used for receiving a second signal; and a negative voltage providing end which is coupled to the first end, wherein the clamping unit is used for: pulling the voltage at the output end to the voltage at the input end when the first signal is '0'; and clamping the output end at a clamping voltage when the first signal is “1”.