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. 28, 2023

Filed:

Nov. 08, 2020
Applicant:

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

Inventors:

Yu-Chao Lin, Hsinchu, TW;

Tung-Ying Lee, Hsinchu, TW;

Yuan-Tien Tu, Chiayi County, TW;

Jung-Piao Chiu, Kaohsiung, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/24 (2006.01); H01L 45/00 (2006.01);
U.S. Cl.
CPC ...
H01L 27/2427 (2013.01); H01L 45/124 (2013.01); H01L 45/1253 (2013.01); H01L 45/14 (2013.01); H01L 45/1691 (2013.01);
Abstract

A memory cell includes a bottom electrode, a memory element, spacers, a selector and a top electrode. The memory element is located on the bottom electrode and includes a first conductive layer, a second conductive layer and a storage layer. The first conductive layer is electrically connected to the bottom electrode. The second conductive layer is located on the first conductive layer, wherein a width of the first conductive layer is smaller than a width of the second conductive layer. The storage layer is located in between the first conductive layer and the second conductive layer. The spacers are located aside the second conductive layer and the storage layer. The selector is disposed on the spacers and electrically connected to the memory element. The top electrode is disposed on the selector.


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