Method of fabricating and integrating an optical assembly into a flying head
AssigneeTerastor Corporation
InventorsAmit Jain, Gordon R. Knight, James M. McCoy, Allan Schwartz, Arnie O. Thornton
Life of this patent
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Abstract
Several embodiments of a method for manufacturing an optical assembly for use in an optical flying head are provided. The optical assembly may include a solid immersion lens and a magnetic coil. Techniques are provided for fabricating the solid immersion lens and the magnetic coil. Techniques are also provided for installing the optical assembly into a slider for the optical flying head. Other embodiments are described in which a solid immersion lens is installed in or is integral with a transparent slider. A magnetic coil may also be installed in these embodiments.
Claims4
A method of fabricating an optical assembly for flying head magneto optic operations, comprising:
- (a) providing a substrate having surfaces defining a hole, said substrate having top and bottom surfaces, and said substrate having at least one air-bearing surface extending down below said bottom surface which is operative to allow said substrate to fly above a substrate;
- (b) forming a solid immersion lens portion having a shaped edge surface, a top portion and a bottom portion, said solid immersion lens portion being sized for magneto optic operations;
- (c) forming the solid immersion lens portion into the hole in said substrate such that said edge surface of said solid immersion lens portion is held against one of said surfaces of said substrate defining a hole and at least part of said solid immersion lens portion is within said hole;
- (d) forming a reduced-size mesa portion in optical contact with said solid immersion lens portion, said reduced-size mesa portion having an outer size that is smaller than an outer size of a bottom-most portion of the solid immersion lens portion, said reduced-size mesa portion being formed in a way such that said mesa portion is extending downward below at least a portion of the bottom surface of said substrate, said reduced-size mesa portion having edge portions, and said mesa portion optically coupling optical radiation to and from said solid immersion lens portion;
- and
- (e) placing an electrically-energizable coil adjacent to said mesa portion, such that at least one wire of said coil is adjacent to said edge portions of said mesa portion.
Dependencies are inferred from the claim text.