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. 04, 2024

Filed:

Aug. 26, 2021
Applicant:

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

Inventors:

Hsin-Yen Huang, New Taipei, TW;

Ting-Ya Lo, Hsinchu, TW;

Shao-Kuan Lee, Kaohsiung, TW;

Chi-Lin Teng, Taichung, TW;

Cheng-Chin Lee, Taipei, TW;

Shau-Lin Shue, Hsinchu, TW;

Hsiao-Kang Chang, Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/522 (2006.01); H01L 21/768 (2006.01);
U.S. Cl.
CPC ...
H01L 23/5226 (2013.01); H01L 21/76831 (2013.01); H01L 21/76832 (2013.01);
Abstract

Some embodiments of the present disclosure relate to an integrated chip, including a semiconductor substrate and a dielectric layer disposed over the semiconductor substrate. A pair of metal lines are disposed over the dielectric layer and laterally spaced apart from one another by a cavity. A barrier layer structure extends along nearest neighboring sidewalls of the pair of metal lines such that the cavity is defined by inner sidewalls of the barrier layer structure and a top surface of the dielectric layer.


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