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:
Dec. 29, 2015
Filed:
Mar. 13, 2014
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Shigeki Kobayashi, Mie-ken, JP;
Takeshi Yamaguchi, Mie-ken, JP;
Masaki Yamato, Mie-ken, JP;
Yoshinori Nakakubo, Mie-ken, JP;
Hiroyuki Ode, Mie-ken, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
According to an embodiment, a nonvolatile memory device includes a first wiring extending to a first direction, a second wiring disposed on the first wiring in a second direction which is orthogonal to the first direction, a first insulating film provided between the first wiring and the second wiring, a bit line extending in the second direction, and a variable resistance film contacting an end portion of the first wiring, an end portion of the second wiring, and an end portion of the first insulating film. A dielectric constant of a center portion between the first and second wirings in the second direction is higher than at vicinities of the first and the second wirings. The variable resistance film is disposed between the bit line and the first wiring, between the bit line and the second wiring, and between the bit line and the first insulating film.