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:
Mar. 02, 2021
Filed:
Jul. 18, 2018
United Microelectronics Corp., Hsin-Chu, TW;
Fujian Jinhua Integrated Circuit Co., Ltd., Quanzhou, CN;
Feng-Yi Chang, Tainan, TW;
Shih-Fang Tzou, Tainan, TW;
Yu-Cheng Tung, Kaohsiung, TW;
Ming-Feng Kuo, Tainan, TW;
Li-Chiang Chen, Tainan, TW;
UNITED MICROELECTRONICS CORP., Hsin-Chu, TW;
Fujian Jinhua Integrated Circuit Co., Ltd., Quanzhou, CN;
Abstract
A semiconductor device includes a first gate structure in a substrate and a second gate structure in the substrate and adjacent to the first gate structure. Preferably, a top surface of the first gate structure and a top surface of the second gate structure are lower than a top surface of the substrate and a number of work function metal layers in the first gate structure and the second gate structure are different.