Invention Grant
- Patent Title: Magnetic domain wall type analog memory element, magnetic domain wall type analog memory, nonvolatile logic circuit, and magnetic neuro-element
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Application No.: US15945119Application Date: 2018-04-04
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Publication No.: US10553299B2Publication Date: 2020-02-04
- Inventor: Tomoyuki Sasaki
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2017-080414 20170414; JP2017-243187 20171219
- Main IPC: G11C19/08
- IPC: G11C19/08 ; H01L27/22 ; H01L43/08 ; H01L43/06 ; G11C11/16 ; H01F10/32 ; H01L43/10 ; H03K19/168

Abstract:
A magnetic domain wall type analog memory element includes: a magnetization fixed layer in which magnetization is oriented in a first direction; a non-magnetic layer provided in one surface of the magnetization fixed layer; a magnetic domain wall drive layer including a first area in which magnetization is oriented in the first direction, a second area in which magnetization is oriented in a second direction opposite to the first direction, and a magnetic domain wall formed as an interface between the areas and provided to sandwich the non-magnetic layer with respect to the magnetization fixed layer; and a current controller configured to cause a current to flow between the magnetization fixed layer and the second area at the time of reading.
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