Method for manufacturing a shielded pole magnetic head for perpendicular recording
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United States of America Patent
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Mar 4, 2008
Grant Date -
N/A
app pub date -
Jan 30, 2007
filing date -
Apr 6, 2004
priority date (Note) -
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Abstract
A method of making a perpendicular magnetic recording head for use in a data storage device includes forming a first pole layer, a second pole layer, a third pole layer, and a shield layer of a write section. The first pole layer, second pole layer, third pole layer, and shield layer are formed without using a chemical mechanical polishing process. The method next includes concurrently trimming the shield layer and a write pole that is defined by the third pole layer to a predetermined track width. In the trimming step, the shield layer is used as a mask for the write pole.
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