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. 08, 2022

Filed:

Jun. 04, 2020
Applicant:

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

Inventors:

Harry-Hak-Lay Chuang, Hsinchu, TW;

Wen-Chun You, Hsinchu, TW;

Hung Cho Wang, Hsinchu, TW;

Yen-Yu Shih, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/22 (2006.01); H01L 43/02 (2006.01); H01L 43/12 (2006.01);
U.S. Cl.
CPC ...
H01L 27/228 (2013.01); H01L 43/02 (2013.01); H01L 43/12 (2013.01);
Abstract

The present disclosure provides a system and method for forming a reduced area MRAM memory cell including a substrate, a transistor overlying the substrate and a magnetic tunnel junction overlying the transistor. The transistor includes a first and second source regions, a drain region between the first and second source regions, at least one first channel region between the drain region and the first source region, at least one second channel region between the drain region and the second source region, a first gate structure overlying the at least one first channel region, and a second gate structure overlying the at least one second channel region. First and second metal layers overlie the transistor. The first and second metal layers are configured to couple a common source line signal to the first and second source regions.


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