Invention Grant
US09355668B2 Hard disk drive with contact detection using a spin torque oscillator
有权
使用自旋扭矩振荡器进行接触检测的硬盘驱动器
- Patent Title: Hard disk drive with contact detection using a spin torque oscillator
- Patent Title (中): 使用自旋扭矩振荡器进行接触检测的硬盘驱动器
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Application No.: US13899334Application Date: 2013-05-21
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Publication No.: US09355668B2Publication Date: 2016-05-31
- Inventor: Yasutaka Nishida , Masato Shiimoto , Hiroyuki Katada , Ikuya Tagawa , Junguo Xu
- Applicant: HGST Netherlands B.V.
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agent John D. Henkhaus
- Main IPC: G11B5/00
- IPC: G11B5/00 ; G11B5/60
Abstract:
A hard-disk drive having a structurally efficient magnetic head slider utilizes a MAMR-based spin torque oscillator (STO) for head-disk contact detection and for flying height sensing. Contact detection and spacing estimation techniques consider the nominal temperature difference, and thus different criteria, between read and write operations.
Public/Granted literature
- US20140347969A1 Hard Disk Drive With Contact Detection Using a Spin Torque Oscillator Public/Granted day:2014-11-27
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