Claims
- 1. A head slider, comprising:
a slider body having a leading edge, a trailing edge, a first side edge, a second side edge and a center line extending between the leading edge and the trailing edge, which define a disc-facing surface having a bearing plane; and a protrusion on the disc-facing surface along the first side edge and having a protrusion surface, the protrusion surface tilted with respect to the bearing plane about the center line and towards the first side edge.
- 2. The slider of claim 1 wherein the protrusion further comprises a trench having an inlet, a trench floor, a side wall and a trailing wall, wherein the inlet is open to fluid flow from the first side edge.
- 3. The slider of claim 2 wherein the trench floor is parallel to the protrusion surface.
- 4. The slider of claim 2 wherein the trench floor includes a plurality of step portions, wherein adjacent step portions lie in planes that are tilted about the center line and with respect to each other.
- 5. The slider of claim 2 wherein the trench floor is curved
- 6. The slider of claim 2 wherein the trench further includes a second side wall spaced apart from the first-mentioned side wall by the trench floor.
- 7. The slider of claim 1 wherein the protrusion surface is tilted with respect to the bearing plane by about 0.5 to 2.5 degrees.
- 8. The slider of claim 1 wherein the protrusion surface is further tilted with respect to the bearing plane towards the trailing edge.
- 9. The slider of claim 1 wherein the protrusion surface is curved.
- 10. The slider of claim 1 and further comprising a second protrusion on the disc facing surface along the second side edge and having a protrusion surface, the protrusion surface tilted with respect to the bearing plane about the center line toward the second side edge.
- 11. The slider of claim 9 and further comprising a first side rail positioned on the disc facing surface along the first side edge, a second side rail positioned on the disc facing surface along the second side edge and a cavity dam positioned on the disc facing surface extending between the first and second side rails, wherein the first-mentioned protrusion is isolated from the first side rail and positioned closer to the trailing edge than the first side rail and the second protrusion is isolated from the second side rail and positioned closer to the trailing edge than the second side rail.
- 12. A head slider, comprising:
a slider body having a leading edge, a trailing edge, a first side edge, a second side edge and a center line extending between the leading edge and the trailing edge, which define a disc-facing surface having a bearing plane; and a protrusion on the disc-facing surface having a first protrusion surface and a second protrusion surface recessed from the first protrusion surface, wherein at least one of the first protrusion surface and the second protrusion surface is tilted with respect to the bearing plane about the center line.
- 13. The head slider of claim 12 wherein the protrusion further comprises a side wall extending between the first protrusion surface and the second protrusion surface.
- 14. The head slider of claim 13 wherein the second protrusion surface forms a trench floor and an opening facing the leading edge.
- 15. The head slider of claim 14 wherein the trench floor is curved.
- 16. The head slider of claim 12 wherein the first protrusion surface and the second protrusion surface are substantially parallel.
- 17. The head slider of claim 12 wherein the protrusion is positioned proximate the first side edge and proximate the trailing edge.
- 18. The head slider of claim 17 wherein the at least one of the first protrusion surface and the second protrusion surface is tilted towards the first side edge.
- 19. The head slider of claim 17 and further comprising a rail extending along the first side edge closer to the leading edge than the protrusion and wherein the protrusion is isolated from the rail.
- 20. The head slider of claim 12 wherein said at least one of the first protrusion surface and the second protrusion surface is curved.
- 21. A head slider, comprising:
a slider body having a leading edge, a trailing edge, a first side edge, a second side edge and a center line extending between the leading edge and the trailing edge, which define a disc-facing surface having a bearing plane; and tilted protrusion means for diverting air flow from the first side edge to pressurize a protrusion surface tilted with respect to the center line.
- 22. The head slider of claim 21, wherein the tilted protrusion means include a trench floor parallel with the protrusion surface.
- 23. The head slider of claim 22, wherein the tilted protrusion means include an inlet open to fluid flow from the first side edge.
- 24. The head slider of claim 23, wherein the tilted protrusion means include side wall and trailing wall means for pressurizing the slider means with airflow from the inlet.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of U.S. Provisional Application Serial No. 60/424,530, entitled “Tilted Trenched Pads to Increase AAB Robustness Against Load/Unload-Induced Head-Media Contact”, filed Nov. 7, 2002.
Provisional Applications (1)
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Number |
Date |
Country |
|
60424530 |
Nov 2002 |
US |