Method of making a magnetic write head with plated self-aligned zero throat height defining layer without reflective notching of a second pole tip
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United States of America Patent
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Aug 29, 2000
Grant Date -
N/A
app pub date -
Apr 10, 1998
filing date -
Apr 10, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method makes a magnetic write head with a plated self-aligned zero throat height (ZTH) defining layer without reflective notching. In the method a seedlayer is deposited on a first pole piece layer, a negative resist layer is photopatterned on the seedlayer with a first opening that frames a location for a second pole piece, a positive resist layer is photopatterned on the negative resist layer with a second opening that frames a location for the ZTH defining layer, the ZTH defining layer is plated, the positive resist is removed, the second pole piece is plated and the negative resist is removed. The ZTH defining layer has a front vertical edge that is substantially parallel to an air bearing surface (ABS) and that is recessed from the ABS for defining the ZTH of the head.
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