Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device
Reexamination Certificate
2004-04-23
2008-08-19
Huff, Mark F. (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making electrical device
C315S319000, C315S320000, C315S330000
Reexamination Certificate
active
07413845
ABSTRACT:
Methods of forming a component of a thin film magnetic head and improving the plating of a component of a thin film magnetic head are provided. The methods include the use of a high activation energy chemically amplified photoresist (CARS) that is contacted with a low pH high saturation magnetic moment plating solution to form a magnetic head component that is essentially free of plating defects. The methods find utility in hard disk drive applications, such as in the manufacture of magnetic poles for the write head of a hard disk drive.
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Rohm and Haas Electronic Materials LLC (2004),UV26 Positive DUV Photoresist(0.2-3.8) (Material Safety Data Sheet), Version 2.0, pp. 1-9.
Lee Kim Y.
McKean Dennis Richard
Hitachi Global Storage Technologies - Netherlands B.V.
Huff Mark F.
Mintz Levin Cohn Ferris Glovsky & Popeo P.C.
Sullivan Caleen O
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