Invention Grant
- Patent Title: TMR/CPP reader for narrow reader gap application
- Patent Title (中): TMR / CPP读卡器用于窄读取器间隙应用
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Application No.: US14221375Application Date: 2014-03-21
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Publication No.: US09001473B1Publication Date: 2015-04-07
- Inventor: Zheng Gao , James Mac Freitag , Kuok San Ho , Ching Hwa Tsang , Kochan Ju
- Applicant: HGST Netherlands B.V.
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Patterson & Sheridan, LLP
- Main IPC: G11B5/127
- IPC: G11B5/127 ; G11B5/39

Abstract:
The embodiments disclosed generally relate to a read head in a magnetic recording head. The read head utilizes a sensor structure having: a pinned magnetic structure recessed from a media facing surface; and a reader gap structure. The reader gap structure has a spacer layer recessed from the media facing surface and disposed on top of the pinned magnetic structure, a recessed first free layer partially recessed from the media facing surface and disposed on top of the barrier layer, a second free layer extending to the media facing surface an disposed on top of the barrier layer, and a cap layer extending to the media facing surface disposed atop the second free layer. The pinned magnetic structure, the spacer, and the first free layer have a common face which is on an angle relative to the media facing surface.
Information query
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