Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2008-03-18
2008-03-18
Kim, Paul D. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S603130, C029S603150, C029S603180, C075S414000, C216S062000, C216S066000, C216S067000, C360S122000, C360S125330, C360S317000, C451S005000, C451S041000
Reexamination Certificate
active
10881782
ABSTRACT:
In one illustrative example, a method for use in making a magnetic write head includes the steps of forming a first pole piece layer of a first pole piece; forming a patterned resist over the first pole piece layer; electroplating a pedestal over the first pole piece layer within a channel of the patterned resist; electroplating a metal gap layer over the pedestal within the channel of the patterned resist; forming a resist channel shrinking film over the patterned resist; baking the resist channel shrinking film over the patterned to thereby reduce a width of the channel; removing the resist channel shrinking film; electroplating a second pole piece within the reduced-width channel of the patterned resist; removing the patterned resist; and milling the pedestal, using the second pole piece as a mask, to form a central notched pedestal having side walls with angled slopes.
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Lee Kim Y.
Lo Jyh-Shuey (Jerry)
McKean Dennis Richard
Hitachi Global Storage Technologies - Netherlands B.V.
Kim Paul D.
Nader Rambod
Oskorep, Esq. John J.
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