Switch stalk device

Details Switch stalk device Switch stalk device

2008-07-22

2008-07-22

Friedhofer, Michael A (Department: 2832)

Electricity: circuit makers and breakers

Special application

Steering wheel, shaft or column mounted

C200S061270

Reexamination Certificate

active

11854650

ABSTRACT:
A thin film magnetic head includes a recording and playback element, a lead conductor layer for feeding a power to the recording and playback element, an electrically conductive bump for conductively connecting the lead conductor layer to an electrode pad for external connection, and an insulating protective layer filling between the recording and playback element and the electrically conductive bump. A thermal deformation-preventing layer composed of a material having a thermal expansion coefficient smaller than that of the insulating protective layer is disposed in the insulating protective layer in such a way as to locate between a medium-facing surface and the electrically conductive bump without being exposed at the medium-facing surface. In the resulting thin film magnetic head, protrusion of the recording and playback element toward the recording medium side can be prevented without changing the configuration of the recording and playback element nor the forming material.

REFERENCES:
patent: 5600110 (1997-02-01), Neubauer
patent: 5780794 (1998-07-01), Uchiyama et al.
patent: 5831231 (1998-11-01), Uchiyama
patent: 5859396 (1999-01-01), Yokoyama
patent: 5861594 (1999-01-01), Akimoto et al.
patent: 6034338 (2000-03-01), Uchiyama
patent: 6384351 (2002-05-01), Schwartz et al.
patent: 6700084 (2004-03-01), Shibata et al.
patent: 6903285 (2005-06-01), Bosch et al.
patent: 10-172389 (1998-06-01), None

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