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:
Feb. 04, 2025

Filed:

Jan. 27, 2023
Applicant:

Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;

Inventors:

Ming-Yen Chuang, Hsinchu, TW;

Katherine H. Chiang, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/406 (2006.01); G11C 11/4091 (2006.01); G11C 11/4096 (2006.01);
U.S. Cl.
CPC ...
G11C 11/40615 (2013.01); G11C 11/4091 (2013.01); G11C 11/4096 (2013.01);
Abstract

An integrated circuit includes an array of word lines, and an array of memory cells configured to receive selection signals from the array of word lines. Each memory cell in the array of memory cells is connected to one or more data lines in a set of data lines. The integrated circuit also includes a read-write driver which is connected to the set of data lines and is configured to receive a flip-refresh control signal. The read-write driver has a catch circuit configured to store a first bit value related to a stored bit value in a selected memory cell. The read-write driver is configured to store into the selected memory cell a second bit value which is a bit inversion of the stored bit value.


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