Metal working – Method of mechanical manufacture – Electrical device making
Patent
1996-04-16
1998-04-14
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
2960315, 360126, G11B 542
Patent
active
057378258
ABSTRACT:
A thin film magnetic head is provided in which a magnetic yoke assembly is built up, layer by layer, atop a substrate using semiconductor thin film techniques. A lower yoke assembly is first fabricated including a lower magnetic layer situated on the substrate and first and second side poles built up vertically from the ends of the lower magnetic layer. An insulative pedestal surrounded by a frame is formed at the top of the lower yoke assembly and extends above the uppermost lateral plane of the yoke assembly. A diamond-like carbon (DLC) wear layer is deposited atop the pedestal. First and second pole wells are excavated in the DLC layer so as to expose the first and second side poles therebelow and to form a DLC gap region between the first and second side poles. First and second magnetic poles are then formed in the first and second pole wells, respectively.
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Gray G. Robert
Malhotra Arun
AIWA Research & Development, Inc.
Hall Carl E.
Koestner Ken J.
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