Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2011-05-17
2011-05-17
Banks, Derris H (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S603130, C029S603160, C427S128000, C427S129000, C451S008000, C451S041000, C451S063000
Reexamination Certificate
active
07941911
ABSTRACT:
A method is provided for forming a plurality of regions of magnetic material in a substrate having a first approximately planar surface. The method comprises the steps of fabricating projections in the first surface of the substrate, depositing onto the first surface a magnetic material in such a way that the tops of the projections are covered with magnetic material, and depositing filler material atop the substrate so produced. The filler material may then be planarized, for example by chemical-mechanical polishing. In an alternative embodiment magnetic material is deposited on a substrate and portions of it are removed, leaving islands of material. Filler material is then deposited, which may be planarized.
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Bandic Zvonimir Z.
Dobisz Elizabeth Ann
Li Jui-Lung
Yang Henry Hung
Banks Derris H
Carley Jeffrey
Hitachi Global Storage Technologies - Netherlands B.V.
Mintz Levin Cohn Ferris Glovsky and Popeo P.C.
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