Invention Grant
- Patent Title: Magnetic memory device
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Application No.: US16816961Application Date: 2020-03-12
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Publication No.: US11329215B2Publication Date: 2022-05-10
- Inventor: Kazuya Sawada , Young Min Eeh , Eiji Kitagawa , Taiga Isoda , Tadaaki Oikawa , Kenichi Yoshino
- Applicant: KIOXIA CORPORATION
- Applicant Address: JP Tokyo
- Assignee: KIOXIA CORPORATION
- Current Assignee: KIOXIA CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz & Volek PC
- Priority: JPJP2019-166174 20190912
- Main IPC: H01L43/02
- IPC: H01L43/02 ; H01L43/10 ; G11C11/16 ; H01L27/22

Abstract:
According to one embodiment, a magnetic memory device includes a substrate, a first layer stack, and a second layer stack at a same side of the first layer stack relative to the substrate, and farther than the first layer stack from the substrate. Each of the first and second layer stack includes a reference layer, a tunnel barrier layer provided in a direction relative to the reference layer, the direction being perpendicular to the substrate, a storage layer provided in the direction relative to the tunnel barrier layer, and a first nonmagnetic layer provided in the direction relative to the storage layer. A heat absorption rate of the first nonmagnetic layer of the first layer stack is lower than a heat absorption rate of the first nonmagnetic layer of the second layer stack.
Public/Granted literature
- US20210083170A1 MAGNETIC MEMORY DEVICE Public/Granted day:2021-03-18
Information query
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