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:
Jan. 06, 2015
Filed:
Sep. 09, 2011
Wai-yi Lien, Hsinchu, TW;
Yu-ho Chiang, Taichung, TW;
Tsung-yen Pan, Ping-Tung County, TW;
United Microelectronics Corp., Science-Based Industrial Park, Hsin-Chu, TW;
Abstract
A dummy cell pattern includes a dummy diffusion pattern disposed within a predetermined region A; a trench isolation pattern encompassing the dummy diffusion pattern in the predetermined region A; a first dummy gate pattern disposed on the dummy diffusion pattern with two ends of the first dummy gate pattern extending above the trench isolation pattern, thereby forming overlapping areas Cand C; and a second dummy gate pattern directly on the trench isolation pattern forming an overlapping area C therebetween, wherein the combination of C, Cand C is about 5%-20% of the predetermined region A.