Invention Grant
- Patent Title: Nonvolatile memory
- Patent Title (中): 非易失性存储器
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Application No.: US15080778Application Date: 2016-03-25
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Publication No.: US09536621B2Publication Date: 2017-01-03
- Inventor: Ryousuke Takizawa
- Applicant: KABUSHIKI KAISHA TOSHIBA
- Applicant Address: JP Tokyo
- Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz & Volek PC
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G11C17/16 ; G11C11/16 ; G11C29/00 ; G11C29/44

Abstract:
A nonvolatile memory includes a memory area including plural first magnetoresistive elements each serving as a memory element, each first magnetoresistive element including a first storage layer and a first reference layer, with a first insulating film therebetween. A fuse circuit storing correction information of the memory area when a defect exists in the memory area, includes plural second magnetoresistive elements and plural fuse elements, the second magnetoresistive elements each serving as an anti-fuse element. Each second magnetoresistive element includes a second storage layer and a second reference layer, with a second insulating film therebetween. The fuse elements each store at least part of the correction information. A redundancy area includes plural third magnetoresistive elements each serving as a redundancy element, each third magnetoresistive element including a third storage layer and a third reference layer, with a third insulating film therebetween. When an external address signal matches the correction information, one third magnetoresistive element is selected.
Public/Granted literature
- US20160211036A1 NONVOLATILE MEMORY Public/Granted day:2016-07-21
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