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:
Jun. 18, 2024

Filed:

Apr. 11, 2022
Applicant:

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

Inventors:

Elia Ambrosi, Hsinchu, TW;

Cheng-Hsien Wu, Hsinchu, TW;

Hengyuan Lee, Hsinchu, TW;

Xinyu Bao, Fremont, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 13/00 (2006.01); H10N 70/20 (2023.01); H10B 63/00 (2023.01); H10N 70/00 (2023.01);
U.S. Cl.
CPC ...
G11C 13/003 (2013.01); G11C 13/0004 (2013.01); G11C 13/0033 (2013.01); G11C 13/004 (2013.01); G11C 13/0069 (2013.01); H10N 70/231 (2023.02); G11C 2013/0092 (2013.01); G11C 2213/15 (2013.01); H10B 63/84 (2023.02); H10N 70/826 (2023.02);
Abstract

A method includes applying a first voltage pulse across a memory cell, wherein the memory cell includes a selector, wherein the first voltage pulse switches the selector into an on-state; after applying the first voltage pulse, applying a second voltage pulse across the memory cell, wherein before applying the second voltage pulse the selector has a first voltage threshold, wherein after applying the second voltage pulse the selector has a second voltage threshold that is less than the first voltage threshold; and after applying the second voltage pulse, applying a third voltage pulse across the memory cell, wherein the third voltage pulse switches the selector into an on-state; wherein the selector remains continuously in an off-state between the first voltage pulse and the third voltage pulse.


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