Invention Grant
- Patent Title: Heat-assisted magnetic recording device capable of preventing contaminant on the head
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Application No.: US15784509Application Date: 2017-10-16
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Publication No.: US10204655B1Publication Date: 2019-02-12
- Inventor: Minjie Ma , Tim Rausch , Edward Charles Gage , James Dillon Kiely , Paul M. Jones , Yang Yang
- 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: G11B11/00
- IPC: G11B11/00 ; G11B21/10 ; G11B5/00 ; G11B7/126 ; G11B7/1267 ; G11B7/1263 ; G11B5/60
Abstract:
Data is written to data sectors of a heat-assisted magnetic recording (HAMR) medium using a laser of a HAMR head supplied with a sum of an operational current and a threshold current. A service current is supplied to the laser when the head is over servo sectors of the medium, such that a temperature of the medium at the servo sectors is greater than or equal to a temperature of the head when over the servo sectors.
Information query
IPC分类:
