Invention Grant
- Patent Title: Perpendicular magnetic recording (PMR) writer with recessed leading shield
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Application No.: US16209136Application Date: 2018-12-04
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Publication No.: US11295767B2Publication Date: 2022-04-05
- Inventor: Ying Liu , Yuhui Tang , Yue Liu , Kei Hirata
- Applicant: Headway Technologies, Inc.
- 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: G11B5/11
- IPC: G11B5/11

Abstract:
A PMR (perpendicular magnetic recording) write head includes a main write pole (MP) that is surrounded by magnetic shields, including laterally disposed side shields (SS), a trailing shield (TS) and a leading shield (LS). The leading shield includes a leading-edge taper (LET) that conformally abuts a tapered side of the write pole. The leading-edge shield and the leading-edge taper can be independently recessed in a proximal direction away from an air bearing surface (ABS) plane so that one or the other of them is recessed and the other remains coplanar with the ABS, or both are recessed by independent amounts. In another configuration the LS is not planar but has a recessed portion in a center track region and two surrounding regions that are coplanar with the ABS plane.
Public/Granted literature
- US20200176021A1 Perpendicular Magnetic Recording (PMR) Writer with Recessed Leading Shield Public/Granted day:2020-06-04
Information query
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