发明名称 |
Method and apparatus for minimizing slider fly heights over patterned media |
摘要 |
A patterned magnetic storage medium has a plurality of data sectors separated by respective servo sectors with each servo sector having a pattern of pits representing servo data. Grooves in each data sector separate adjacent tracks. Non-uniform structures patterns the grooves to a model of minimum or zero fly height perturbations of a slider adjacent the medium. The non-uniform structures preferably include lands pseudo-randomly spaced along each groove to form segmented grooves of pseudo-random length, with the lands being pseudo-randomly positioned across the data sector. In other embodiments, the servo sectors have lengths along each track to define a null frequency that matches a pitch frequency of modulation of a slider due to the pits of the servo sectors.
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申请公布号 |
US6563673(B2) |
申请公布日期 |
2003.05.13 |
申请号 |
US20010952122 |
申请日期 |
2001.09.11 |
申请人 |
SEAGATE TECHNOLOGY LLC |
发明人 |
MUNDT MICHAEL D.;CHAPIN MARK A.;BEMENT GARY E.;DENKER BRIAN D.;JONES PAUL M. |
分类号 |
G11B5/596;G11B5/60;G11B5/82;(IPC1-7):G11B5/82;G11B5/84 |
主分类号 |
G11B5/596 |
代理机构 |
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主权项 |
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