Invention Grant
- Patent Title: Write head having recessed magnetic material in gap region
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Application No.: US13367349Application Date: 2012-02-06
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Publication No.: US08767349B2Publication Date: 2014-07-01
- Inventor: Moris Dovek , Glen Garfunkel , Po Kang Wang
- Applicant: Moris Dovek , Glen Garfunkel , Po Kang Wang
- Applicant Address: US CA Milpitas
- Assignee: Headway Technologies, Inc.
- Current Assignee: Headway Technologies, Inc.
- Current Assignee Address: US CA Milpitas
- Agency: Saile Ackerman LLC
- Agent Stephen B. Ackerman
- Main IPC: G11B5/127
- IPC: G11B5/127

Abstract:
As track densities increase, it becomes increasingly important, while writing in a given track, not to inadvertently write data in adjoining tracks. This problem has been overcome by limiting the width of material in the ABS plane to what it is at the write gap. The part of the lower pole that is wider than this is recessed back away from the ABS, thereby greatly reducing its magnetic influence on adjacent tracks. Four different embodiments of write heads that incorporate this notion are described together with a description of a general process for their manufacture.
Public/Granted literature
- US20120134050A1 Write Head Having Recessed Magnetic Material In Gap Region Public/Granted day:2012-05-31
Information query
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