Invention Grant
- Patent Title: Magnetic memory, semiconductor device, electronic device, and method of reading magnetic memory
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Application No.: US16486585Application Date: 2017-12-01
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Publication No.: US10783932B2Publication Date: 2020-09-22
- Inventor: Yutaka Higo , Masanori Hosomi , Hiroyuki Ohmori , Kazuhiro Bessho , Hiroyuki Uchida , Yo Sato , Naoki Hase
- Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
- Applicant Address: JP Kanagawa
- Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
- Current Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
- Current Assignee Address: JP Kanagawa
- Agency: Chip Law Group
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@76069b53
- International Application: PCT/JP2017/043299 WO 20171201
- International Announcement: WO2018/159045 WO 20180907
- Main IPC: G11C5/06
- IPC: G11C5/06 ; G11C5/08 ; G11C11/16 ; H01L27/22 ; H01L43/02 ; H01L43/08 ; H01L43/10

Abstract:
To provide a magnetic memory for storing multi-level information capable of reading while sufficiently securing a read margin. Provided is a magnetic memory including: first and second magnetic storage elements that are provided between a first wiring and a second wiring crossing each other, and are electrically connected in series; a third wiring electrically connected between the first and second magnetic storage elements; a first determination unit that determines a magnetization state of the first magnetic storage element on the basis of a current flowing to the first magnetic storage element through the third wiring; and a second determination unit that determines a magnetization state of the second magnetic storage element on the basis of a current flowing to the first and second magnetic storage elements through the first wiring, in which the determination state of the second determination unit is changed on the basis of the determination result of the first determination unit.
Public/Granted literature
- US20190385647A1 MAGNETIC MEMORY, SEMICONDUCTOR DEVICE, ELECTRONIC DEVICE, AND METHOD OF READING MAGNETIC MEMORY Public/Granted day:2019-12-19
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