发明授权
- 专利标题： Heat-assisted magnetic recording device capable of preventing contaminant on the head
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申请号： US15784509申请日： 2017-10-16
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公开(公告)号： US10204655B1公开(公告)日： 2019-02-12
- 发明人: Minjie Ma , Tim Rausch , Edward Charles Gage , James Dillon Kiely , Paul M. Jones , Yang Yang
- 申请人： Seagate Technology LLC
- 申请人地址： US CA Cupertino
- 专利权人： Seagate Technology LLC
- 当前专利权人： Seagate Technology LLC
- 当前专利权人地址： US CA Cupertino
- 代理机构： Hollingsworth Davis, LLC
- 主分类号： G11B11/00
- IPC分类号： G11B11/00 ; G11B21/10 ; G11B5/00 ; G11B7/126 ; G11B7/1267 ; G11B7/1263 ; G11B5/60
摘要：
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.
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