Composite thin film head having magnetoresistive and inductive head portions with nonmagnetic thin film interposed between core and shield portions of core layer
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United States of America Patent
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Apr 14, 1998
Issued Date -
N/A
app pub date -
Dec 9, 1996
filing date -
Feb 1, 1994
priority date (Note) -
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Abstract
A composite thin film head comprises a magnetoresistive head portion and an inductive head portion which are superposed on a substrate, the inductive head portion comprising a lower core layer disposed on one side of a gap spacer layer and adjacent to the magnetoresistive head portion, and an upper core layer disposed on the other side of the gap spacer layer. The lower core layer comprises a core portion positioned toward the upper core layer having the same width as the upper core layer in the vicinity of a medium-opposed face, and a shield portion positioned toward the magnetoresistive head portion having a larger width than the core portion in the vicinity of the medium-opposed face.
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