Invention Grant
- Patent Title: Method of manufacturing a horizontal thin film write, MR read head
- Patent Title (中): 制造水平薄膜写入,MR读头的方法
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Application No.: US11172735Application Date: 2005-07-01
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Publication No.: US07213326B2Publication Date: 2007-05-08
- Inventor: Mohamad Towfik Krounbi , Mark E. Re
- Applicant: Mohamad Towfik Krounbi , Mark E. Re
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Bracewell & Giuliani LLP
- Main IPC: G11B5/42
- IPC: G11B5/42

Abstract:
A horizontal combined head is provided which has both a thin film write and an MR read element located at an air bearing surface (ABS). The read element can be formed with a track width that is independent of the track width of the write element. The MR sensor or the read element is separated from one of the first and second pole pieces of the write element by an insulation layer. Accordingly, the shields for the read element remain more stable after a write operation. In one embodiment of the present invention a single stripe MR sensor is employed while in a second embodiment a dual stripe MR sensor is employed. A method of the invention includes forming the dual MR stripe in a single process step so that the dual MR stripes of the dual MR sensor are near identical for implementing near absolute common mode rejection of noise.
Public/Granted literature
- US20050264925A1 Horizontal thin film write, MR read head Public/Granted day:2005-12-01
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