Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-08-07
2010-11-23
Cao, Allen T (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07839607
ABSTRACT:
A method is presented for fabricating a CPP read head having a CPP read head sensor and a hard bias layer which includes forming a strip of sensor material in a sensor material region, and depositing strips of fast-milling dielectric material in first and second fast-milling dielectric material regions adjacent to the sensor material region. A protective layer and a layer of masking material are deposited on the strip of sensor material and the strips of fast-milling dielectric material to provide masked areas and exposed areas. A shaping source, such as an ion milling source, is provided which shapes the exposed areas. Hard bias material is then deposited on the regions of sensor material and fast-milling dielectric material to form caps on each of these regions. The caps of hard bias material and the masking material are then removed from each of these regions.
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IPCOM13530D: Fabrication of self-aligned side-by-side read/write head by using selective dry etching.
Fontana, Jr. Robert E.
Hong Ying
Jayasekara Wipul Pemsiri
Zolla Howard Gordon
Cao Allen T
Guernsey Larry B.
Hitachi Global Storage Technologies - Netherlands B.V.
Patent Law Office of Larry Guernsey
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