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US 5,636,087 AGranted
Magnetic head slider assembly
AssigneeTDK Corporation
InventorsMikio Matsuzaki, Atsushi Iijima
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Abstract
A slider assembly for a flying magnetic head is made of a ceramic material including a plurality of components having different milling rates from each other. A grain size of one of the components having a lower milling rate is smaller than a grain size of another one of the components having a higher milling rate.
Claims7
A ceramic magnetic head slider comprising at least one surface comprising an air bearing surface and at least one recess surface disposed adjacent thereto:
- wherein at least said recess surface comprises grains of a plurality of different composition ceramic components, each of which components has a different inherent ion beam millable rate;
- wherein each of said different composition ceramic components have different average grain sizes;
- wherein each different average grain size of each different composition ceramic component has a different ion beam milling rate, and wherein the ion beam milling rates of the grains of each different specific composition ceramic component of the same grain size is different;
- wherein the average grain sizes of each of said different composition ceramic components is selected to be substantially proportional to its inherent ion beam milling rate such that the actual ion beam milling rates of the different average grain sizes of the different composition ceramic components, respectively, are all substantially the same;
- and
- wherein said recess surface, made by ion beam milling, is substantially smoother than would have been the case if said recess surface was made by ion beam milling of a blank comprising the same different composition ceramic components where each had substantially the same average size grains.
3 more elements
Dependencies are inferred from the claim text.