发明授权
US07957086B2 Hard disk drive apparatus, method to control flying height of magnetic head thereof, and recording media for computer program therefor
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硬盘驱动装置，用于控制磁头的飞行高度的方法以及用于计算机程序的记录介质
- 专利标题： Hard disk drive apparatus, method to control flying height of magnetic head thereof, and recording media for computer program therefor
- 专利标题（中）： 硬盘驱动装置，用于控制磁头的飞行高度的方法以及用于计算机程序的记录介质
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申请号： US12031943申请日： 2008-02-15
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公开(公告)号： US07957086B2公开(公告)日： 2011-06-07
- 发明人: Chang-Hwan Lee , Hae Jung Lee
- 申请人： Chang-Hwan Lee , Hae Jung Lee
- 申请人地址： KR Suwon-si
- 专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人地址： KR Suwon-si
- 代理机构： Stanzione & Kim, LLP
- 优先权： KR10-2007-0016457 20070216
- 主分类号： G11B5/02
- IPC分类号： G11B5/02
摘要：
A method of controlling a flying height of a magnetic head of a hard disk drive apparatus includes producing a reference FOD (flying on demand) voltage profile defining a relationship between the flying height of the magnetic head and an FOD voltage at a measured temperature, wherein an end of the magnetic head thermally expands and protrudes when the FOD voltage is applied to a heater included in the magnetic head and setting the reference FOD voltage profile that is corrected using a reference maximum flying height of the magnetic head that is preset at room temperature, as an applied FOD voltage profile to control the flying height of the magnetic head.
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