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:
Apr. 06, 2021
Filed:
Mar. 11, 2020
Applicant:
Toshiba Memory Corporation, Tokyo, JP;
Inventors:
Tomoo Hishida, Kamakura Kanagawa, JP;
Sadatoshi Murakami, Yokohama Kanagawa, JP;
Ryota Katsumata, Yokkaichi Mie, JP;
Masao Iwase, Yokkaichi Mie, JP;
Assignee:
TOSHIBA MEMORY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/1157 (2017.01); H01L 21/8234 (2006.01); H01L 27/11575 (2017.01); H01L 27/11582 (2017.01);
U.S. Cl.
CPC ...
H01L 27/1157 (2013.01); H01L 21/823437 (2013.01); H01L 27/11575 (2013.01); H01L 27/11582 (2013.01);
Abstract
A semiconductor memory includes a memory cell region that includes multiple memory cells stacked above a semiconductor substrate, first and second dummy regions on opposite sides of the memory cell region, each dummy region including multiple dummy cells stacked above the semiconductor substrate, and a wiring that electrically connects dummy cells of the first and second dummy regions that are at a same level above the semiconductor substrate.