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.
Patent No.:
Date of Patent:
Sep. 15, 2026
Filed:
Mar. 20, 2023
Applicant:
United Semiconductor (Xiamen) Co., Ltd., Xiamen, CN;
Inventors:
Jin Hui Yu, Shamen City, CN;
Rong He, Shamen City, CN;
Hailong Gu, Singapore, SG;
You-Di Jhang, New Taipei City, TW;
Wen Yi Tan, Xiamen, CN;
Assignee:
United Semiconductor (Xiamen) Co., Ltd., Xiamen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10P 74/00 (2026.01);
U.S. Cl.
CPC ...
H10P 74/273 (2026.01); H10P 74/277 (2026.01);
Abstract
A test key structure includes a substrate; a first metal pad disposed on the substrate; a second metal pad disposed in proximity to the first metal pad on the substrate; a gap between the first metal pad and the second metal pad; a first contact disposed on the first metal pad; and a second contact disposed on the second metal pad.