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:
May. 26, 2026

Filed:

May. 07, 2024
Applicant:

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

Inventors:

Yu-Chan Yen, Taipei City, TW;

Ching-Feng Fu, Taichung City, TW;

Chia-Ying Lee, New Taipei City, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/66 (2006.01); H01L 21/44 (2025.01); H01L 21/4763 (2006.01); H01L 21/768 (2006.01); H01L 23/485 (2006.01); H01L 23/522 (2006.01); H01L 29/51 (2006.01); H10D 84/01 (2025.01); H10D 84/03 (2025.01); H01L 23/532 (2006.01); H10D 30/01 (2025.01); H10D 62/00 (2025.01); H10D 62/822 (2025.01); H10D 64/01 (2025.01);
U.S. Cl.
CPC ...
H01L 21/76897 (2013.01); H01L 21/76802 (2013.01); H01L 21/76805 (2013.01); H01L 21/76831 (2013.01); H01L 21/76832 (2013.01); H01L 21/76834 (2013.01); H01L 21/76846 (2013.01); H01L 21/76849 (2013.01); H01L 21/7685 (2013.01); H01L 21/76877 (2013.01); H01L 21/76895 (2013.01); H01L 23/485 (2013.01); H01L 23/5226 (2013.01); H10D 84/0149 (2025.01); H10D 84/038 (2025.01); H01L 23/53295 (2013.01); H01L 2924/0002 (2013.01); H10D 30/0212 (2025.01); H10D 62/021 (2025.01); H10D 62/822 (2025.01); H10D 64/017 (2025.01);
Abstract

An integrated circuit structure includes a first Inter-Layer Dielectric (ILD), a gate stack in the first ILD, a second ILD over the first ILD, a contact plug in the second ILD, and a dielectric protection layer on opposite sides of, and in contact with, the contact plug. The contact plug and the dielectric protection layer are in the second ILD. A dielectric capping layer is over and in contact with the contact plug.


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