- 专利标题: Air-bearing design for hydrocarbon and lube pick-up improvements in hard disk drive (HDD)
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申请号: US15162704申请日: 2016-05-24
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公开(公告)号: US09940960B2公开(公告)日: 2018-04-10
- 发明人: Ellis Cha , Sindy Yeung , Penny Wan Ting Looi , Ben Kwun Pan Ng
- 申请人: SAE Magnetics (H.K.) Ltd. , Headway Technologies, Inc.
- 申请人地址: HK Shatin, N.T. US CA Milpitas
- 专利权人: SAE Magnetics (HK) Ltd.,Headway Technologies, Inc.
- 当前专利权人: SAE Magnetics (HK) Ltd.,Headway Technologies, Inc.
- 当前专利权人地址: HK Shatin, N.T. US CA Milpitas
- 代理机构: Saile Ackerman LLC
- 代理商 Stephen B. Ackerman
- 主分类号: G11B5/60
- IPC分类号: G11B5/60
摘要:
A slider design for a hard disk drive (HDD) features an air-bearing surface (ABS) topography with arrays of micro-dots formed on bases of a multiplicity of cavities at different depths. The design eliminates the accumulation of hydrocarbons (e.g., spindle oil and disk lubricant) deposits in regions of air stagnation within the cavities where backflows and foreflows of air meet and cancel during HDD operation. The micro-dots are small raised regions of various shapes having sizes and spacings in the range between 2 and 100 microns and, in a preferred embodiment, heights of 0.15 microns above the cavity bases.
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