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.:

US 9721831 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 01, 2017

Filed:

Dec. 03, 2015
Applicant:

Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;

Inventors:

Po-Chin Nien, Hsin-Chu, TW;

William Weilun Hong, Hsin-Chu, TW;

Ying-Tsung Chen, Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/8238 (2006.01); H01L 21/762 (2006.01); H01L 29/66 (2006.01); H01L 21/321 (2006.01);
U.S. Cl.
CPC ...
H01L 21/76229 (2013.01); H01L 21/3212 (2013.01); H01L 29/66795 (2013.01);
Abstract

A method includes forming a plurality of first semiconductor fins and a plurality of second semiconductor fins in a substrate, depositing a gate electrode layer over the substrate, wherein upper portions of the plurality of first semiconductor fins and the plurality of second semiconductor fins are embedded in the gate electrode layer, depositing a reverse film over the gate electrode layer and applying a chemical mechanical polish process to the reverse film and the gate electrode layer, wherein during the step of applying the chemical mechanical polish process, depositing a slurry between a polishing pad and the reverse film, and wherein a slurry selectivity ratio of the gate electrode layer to the reverse film is greater than 1.


Find Patent Forward Citations

Nien, Po-Chin. (2017). Method and apparatus for semiconductor planarization (U.S. Patent No. 9721831). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9721831

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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