- Patent Title: Self-compensation of stray field of perpendicular magnetic elements
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Application No.: US14454509Application Date: 2014-08-07
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Publication No.: US10043967B2Publication Date: 2018-08-07
- Inventor: Wei-Chuan Chen , Xiaochun Zhu , Xia Li , Yu Lu , Chando Park , Seung Hyuk Kang
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Seyfarth Shaw LLP
- Main IPC: H01L29/82
- IPC: H01L29/82 ; H01L43/08 ; H01L43/02 ; H01L43/10 ; H01L43/12

Abstract:
A perpendicular magnetic tunnel junction (pMTJ) device includes a perpendicular reference layer, a tunnel barrier layer on a surface of the perpendicular reference layer, and a perpendicular free layer on a surface of the tunnel barrier layer. The pMTJ device also includes a dielectric passivation layer on the tunnel barrier layer and surrounding the perpendicular free layer. The pMTJ device further includes a high permeability material on the dielectric passivation layer that is configured to be magnetized by the perpendicular reference layer and to provide a stray field to the perpendicular free layer that compensates for a stray field from the perpendicular reference layer.
Public/Granted literature
- US20160043304A1 SELF-COMPENSATION OF STRAY FIELD OF PERPENDICULAR MAGNETIC ELEMENTS Public/Granted day:2016-02-11
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