Invention Grant
- Patent Title: Semiconductor memory device
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Application No.: US16040671Application Date: 2018-07-20
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Publication No.: US10312289B1Publication Date: 2019-06-04
- Inventor: Kensuke Ota , Masumi Saitoh
- Applicant: TOSHIBA MEMORY CORPORATION
- Applicant Address: JP Minato-ku
- Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2018-050592 20180319
- Main IPC: H01L27/24
- IPC: H01L27/24 ; H01L45/00 ; G11C13/00 ; H01L23/528

Abstract:
A semiconductor memory device comprises a substrate, a plurality of first wirings arranged in a first direction crossing a surface of the substrate, a second wiring extending in the first direction, a variable resistance film provided between the first wiring and the second wiring, a third wiring extending in a second direction crossing the first direction, a select transistor provided between an end of the second wiring and the third wiring. In addition, the semiconductor memory device comprises a chalcogen layer provided at at least a position between the end of the second wiring and the select transistor, and, a position between the third wiring and the select transistor.
Information query
IPC分类: