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:
Dec. 23, 2025

Filed:

Jun. 18, 2024
Applicant:

United Microelectronics Corp., Hsin-Chu, TW;

Inventors:

Min-Shiang Hsu, Kaohsiung, TW;

Yu-Han Tsai, Kaohsiung, TW;

Chih-Sheng Chang, Tainan, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/522 (2006.01); H01L 21/768 (2006.01); H01L 23/528 (2006.01);
U.S. Cl.
CPC ...
H01L 23/5226 (2013.01); H01L 21/76816 (2013.01); H01L 21/76832 (2013.01); H01L 21/7684 (2013.01); H01L 21/76877 (2013.01); H01L 21/76897 (2013.01); H01L 23/5283 (2013.01);
Abstract

An interconnection structure includes a first interconnection level, a second interconnection level, a third interconnection level, and a super via structure. The second interconnection level is disposed on the first interconnection level, and the third interconnection level is disposed on the second interconnection level. The second interconnection level includes a second conductive layer and a block layer disposed in a dielectric layer. A bottom surface of the block layer is lower than a top surface of the second conductive layer in a vertical direction. The block layer is disposed between a first conductive layer of the first interconnection level and a third conductive layer of the third interconnection level in the vertical direction. The super via structure penetrates through the block layer and the second interconnection level in the vertical direction and electrically connects the first conductive layer and the third conductive layer.


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