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:
Aug. 25, 2015
Filed:
Jan. 28, 2015
Applicant:
United Microelectronics Corp., Hsin-Chu, TW;
Inventors:
Shyan-Liang Chou, Tainan, TW;
Tsung-Min Kuo, Tainan, TW;
Po-Wen Su, Kaohsiung, TW;
Chun-Mao Chiou, Chiayi County, TW;
Feng-Mou Chen, Tainan, TW;
Assignee:
UNITED MICROELECTRONICS CORP., Science-Based Industrial Park, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/76 (2006.01); H01L 29/78 (2006.01); H01L 29/49 (2006.01);
U.S. Cl.
CPC ...
H01L 29/7843 (2013.01); H01L 29/4983 (2013.01);
Abstract
A semiconductor structure includes a substrate, a gate electrode disposed on the substrate, wherein the gate electrode has a first top surface. Agate dielectric layer is disposed between the substrate and the gate electrode. A silicon carbon nitride spacer surrounds the gate electrode, wherein the silicon carbon nitride spacer has a second top surface not higher than the first top surface. A silicon oxide spacer surrounds the silicon carbon nitride spacer.