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:
Feb. 20, 2024
Filed:
Oct. 08, 2021
Applicants:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Inventor:
Kanako Komatsu, Yokohama Kanagawa, JP;
Assignees:
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/08 (2006.01); H01L 29/78 (2006.01);
U.S. Cl.
CPC ...
H01L 29/0882 (2013.01); H01L 29/0865 (2013.01); H01L 29/7816 (2013.01);
Abstract
Among multiple drain regions, a contact surface area between second contacts and a drain region most proximal to a central portion of an element region in a second direction is less than a contact surface area between second contacts and a drain region disposed on an outermost side of the element region in the second direction. The multiple drain regions are arranged in the second direction.