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.

Date of Patent:
Sep. 22, 2020

Filed:

Nov. 26, 2018
Applicant:

Wuhan Xinxin Semiconductor Manufacturing Co., Ltd., Wuhan, Hubei, CN;

Inventors:

Bin Sheng, Hubei, CN;

Zhifeng Mao, Hubei, CN;

Shengbo Zhang, Hubei, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01); G11C 16/12 (2006.01); G11C 7/06 (2006.01); G11C 16/28 (2006.01); G11C 7/12 (2006.01); G11C 7/08 (2006.01);
U.S. Cl.
CPC ...
G11C 16/12 (2013.01); G11C 7/06 (2013.01); G11C 7/067 (2013.01); G11C 7/12 (2013.01); G11C 16/28 (2013.01); G11C 7/062 (2013.01); G11C 7/08 (2013.01);
Abstract

A sense amplifier for a flash memory is disclosed which includes a pre-charging circuit, a first capacitor, a first inverter, and a first transmission gate connected in parallel with the first inverter, the pre-charging circuit is connectable to a reference voltage node, and is able to pre-charge a word line, of the flash memory, via the reference voltage node, a potential of the reference voltage node remains unchanged after the pre-charging is completed; a potential of the reference voltage node is adjustable according to a state of the flash memory until an output voltage of the first inverter changes; the first capacitor has a first end connected to the reference voltage node, a second end connected to an input of the first inverter and a first end of the first transmission gate; an output of the first inverter is connected to a second end of the first transmission gate.


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