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:
May. 12, 2026
Filed:
Jul. 01, 2022
Applicants:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Inventors:
Ryohei Gejo, Kawasaki Kanagawa, JP;
Tomoko Matsudai, Shibuya Tokyo, JP;
Yoko Iwakaji, Meguro Tokyo, JP;
Assignees:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Toshiba Electronic Devices & Storage Corporation, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10D 12/00 (2025.01); H10D 62/10 (2025.01);
U.S. Cl.
CPC ...
H10D 12/411 (2025.01); H10D 62/127 (2025.01);
Abstract
S≤S<Sbeing satisfied, where Sis a surface area of the first gate electrode and the third semiconductor layer facing each other via the first insulating film, Sis a surface area of the second gate electrode and the third semiconductor layer facing each other via the second insulating film, and Sis a surface area of the third gate electrode and the third semiconductor layer facing each other via the third insulating film.