Invention Application
- Patent Title: SOT Differential Reader And Method Of Making Same
-
Application No.: US17395291Application Date: 2021-08-05
-
Publication No.: US20220005498A1Publication Date: 2022-01-06
- Inventor: Quang LE , Xiaoyong LIU , Zhigang BAI , Zhanjie LI , Kuok San HO , Hisashi TAKANO
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: G11B5/37
- IPC: G11B5/37 ; H01L43/04 ; H01L43/06 ; G11B5/39 ; H01L43/14

Abstract:
The present disclosure generally relates to spin-orbital torque (SOT) differential reader designs. The SOT differential reader is a multi-terminal device that comprises a first shield, a first spin hall effect layer, a first free layer, a gap layer, a second spin hall effect layer, a second free layer, and a second shield. The gap layer is disposed between the first spin hall effect layer and the second spin hall effect layer. Electrical lead connections are located about the first spin hall effect layer, the second spin hall effect layer, the gap layer, the first shield, and/or the second shield. The electrical lead connections facilitate the flow of current and/or voltage from a negative lead to a positive lead. The positioning of the electrical lead connections and the positioning of the SOT differential layers improves reader resolution without decreasing the shield-to-shield spacing (i.e., read-gap).
Public/Granted literature
- US11615809B2 SOT differential reader and method of making same Public/Granted day:2023-03-28
Information query
IPC分类: