Magnetic head slider having optimized ratio of negative...

Details Magnetic head slider having optimized ratio of negative... Magnetic head slider having optimized ratio of negative...

2005-01-11

2005-01-11

Evans, Jefferson (Department: 2652)

Dynamic magnetic information storage or retrieval

Fluid bearing head support

Disk record

C360S235700, C360S236100, C360S236300

Reexamination Certificate

active

06842309

ABSTRACT:
A magnetic head slider, for sliding on a magnetic disk, which comprises a leading edge, a trailing edge, an air bearing surface having a front step bearing of submicron depth made from the leading edge, and a rail surface made from the front step bearing. A negative pressure recess, which is more profound than the front step bearing, is made from the rail surface, and a side step bearing with a depth identical to that of the front step bearing is made from the rail surface, wherein the ratio of depth R of the recess and depth δs of the front step bearing is R/δs≧5.

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