Invention Grant
- Patent Title: Combined write/active fly control for heat assisted magnetic recording in a reader over writer application
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Application No.: US15205224Application Date: 2016-07-08
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Publication No.: US09842618B1Publication Date: 2017-12-12
- Inventor: Erik J. Hutchinson , John Wolf , Todd Michael Lammers
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Cupertino
- Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee Address: US CA Cupertino
- Agency: Hollingsworth Davis, LLC
- Main IPC: G11B5/60
- IPC: G11B5/60 ; G11B5/48 ; G11B5/00

Abstract:
An apparatus includes a slider of a heat-assisted magnetic recording head. The slider comprises an air bearing surface, a substrate, and a plurality of electrical bond pads coupled to bias sources. A writer is positioned proximate the substrate. The writer comprises write coils coupled between first and second bond pads. At least one heater is coupled between the first and second bond pads. The at least one heater is disposed within the writer and is configured to thermally actuate the air bearing surface of the writer. A reader is disposed on the slider such that the writer is between the substrate and the reader. Write induced protrusion of the air bearing surface of the writer is moderated by stiffness of the substrate proximate the writer.
Information query
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