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. 09, 2017
Filed:
Feb. 24, 2015
Applicant:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Inventor:
Kiyohito Nishihara, Yokkaichi Mei, JP;
Assignee:
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); H01L 27/22 (2006.01); H01L 21/768 (2006.01); H01L 23/522 (2006.01); H01L 27/24 (2006.01);
U.S. Cl.
CPC ...
H01L 27/222 (2013.01); H01L 21/76805 (2013.01); H01L 21/76831 (2013.01); H01L 21/76877 (2013.01); H01L 23/5226 (2013.01); H01L 27/2481 (2013.01); H01L 2924/0002 (2013.01);
Abstract
A memory device includes a substrate, first and second wirings above the substrate, a third wiring above the first and second wirings, a fourth wiring above the third wiring, a first contact electrically connected between the first wiring and the fourth wiring, a first insulator on the first contact, and a second contact on the first insulator, the second contact being electrically connected between the second wiring and the third wiring. The first contact overlaps the second contact in a direction that is orthogonal to an upper surface of the substrate.