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:
Dec. 25, 2018
Filed:
Aug. 15, 2016
Applicant:
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Inventors:
Chih-Ming Lee, Tainan, TW;
Chiang-Ming Chuang, Changhua County, TW;
Kun-Tsang Chuang, Mioli County, TW;
Yung-Lung Hsu, Tainan, TW;
Hsin-Chi Chen, Tainan, TW;
Assignee:
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/115 (2017.01); H01L 21/28 (2006.01); H01L 29/423 (2006.01); H01L 27/11548 (2017.01);
U.S. Cl.
CPC ...
H01L 21/28273 (2013.01); H01L 27/11548 (2013.01); H01L 29/42328 (2013.01);
Abstract
A semiconductor structure includes a semiconductor substrate, at least one raised dummy feature, and at least one memory cell. The raised dummy feature is present on the semiconductor substrate and defines a cell region and a non-cell region outside of the cell region on the semiconductor substrate, and the raised dummy feature has at least one opening communicating the cell region with the non-cell region. The memory cell is present on the cell region.