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US 6,445,543 B1Granted
Slider with pressure relief trenches
AssigneeSeagate Technology LLC
InventorsJing Gui, Bruno Jean Marchon, Huan Tang, Zine-Eddine Boutaghou
Life of this patent
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Abstract
A slider for supporting transducer elements for a data storage system including at least one pressure relief trench formed in the raised bearing proximate to a contact interface position of the slider and disc surface. The trench is sized to reduce capillary pressure of the meniscus relative to disjoining pressure of a lubricant film layer on the disc surface to limit the area or expansion of a film bridge or meniscus between the bearing surface of the slider and disc surface.
Claims14
A slider for supporting a transducer element for a data storage system comprising:
- a rigid member including opposed leading and trailing edges and opposed upper and lower surfaces, the lower surface including an air bearing surface;
- landing pads extending from the air bearing surface and spaced from the trailing edge of the rigid member such that the rigid member tilts about an axis defined by the pads to thereby cause the trailing edge to approach a disc surface;
- and
- at least one pressure relief trench formed in the air bearing proximate to the trailing edge of the rigid member and spaced from the landing pads to reduce capillary pressure and area of a meniscus due to a disc lubricant proximate to the trailing edge of the rigid member caused by tilt of the rigid member.
1 more element
Dependencies are inferred from the claim text.