Slider with an air bearing surface having a inter-cavity dam...

Details Slider with an air bearing surface having a inter-cavity dam... Slider with an air bearing surface having a inter-cavity dam...

2006-11-15

2009-11-10

Renner, Craig A (Department: 2627)

Dynamic magnetic information storage or retrieval

Fluid bearing head support

Disk record

C360S235500, C360S235000

Reexamination Certificate

active

07616405

ABSTRACT:
A head for use in a magnetic hard disk drive or other information storage device includes a novel ABS. The novel ABS includes an inter-cavity dam that is disposed between at least a portion of a cavity and a trailing pad. The inter-cavity dam is spaced longitudinally from the trailing pad by at least one thirtieth of the slider length. The inter-cavity dam includes an OD dam surface and an ID dam surface, with a slider-bisecting longitudinal plane passing between a majority of the OD dam surface and a majority of the ID dam surface. The OD dam surface is recessed from the first plane by an OD dam recession, and the ID dam surface is recessed from the first plane by an ID dam recession that is not equal to the OD dam recession.

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