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:
Nov. 12, 2024
Filed:
Mar. 04, 2021
Applicant:
Hitachi High-tech Corporation, Tokyo, JP;
Inventors:
Assignee:
HITACHI HIGH-TECH CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/3213 (2006.01); H01L 21/8234 (2006.01); H01L 29/06 (2006.01); H01L 29/423 (2006.01); H01L 29/66 (2006.01); H01L 27/088 (2006.01); H01L 29/775 (2006.01); H01L 29/786 (2006.01);
U.S. Cl.
CPC ...
H01L 21/32136 (2013.01); H01L 21/823412 (2013.01); H01L 29/0673 (2013.01); H01L 29/42392 (2013.01); H01L 29/66439 (2013.01); H01L 27/088 (2013.01); H01L 29/775 (2013.01); H01L 29/78696 (2013.01);
Abstract
A semiconductor device manufacturing method for manufacturing a semiconductor device including Gate All Around type Field effect transistors includes a step of removing an organic film on an n-type channel; a step of removing a work function control metal film on a bottom surface between channels; a step of forming a protective film onto an organic film on a p-type channel; and a step of removing a work function control metal film on the n-type channel.