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.
Claims18
A slider for supporting transducer elements 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 spaced from the trailing edge of the rigid member to define a contact interface with a disc surface;
- a raised center rail on the air bearing surface;
- and
- at least one pressure relief trench formed in the raised center rail proximate to the trailing edge of the rigid member and spaced from the landing pads to reduce capillary pressure and area a meniscus proximate to the trailing edge of the rigid member.
A slider for supporting transducer elements 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 to define a contact interface with the disc;
- a raised center rail on the air bearing surface;
- and
- pressure relief means on the raised center rail of the rigid member for reducing capillary pressure and area of a meniscus proximate to the trailing edge of the rigid member.
Dependencies are inferred from the claim text.