Thin-film magnetic head, head gimbal assembly and hard disk system
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United States of America Patent
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Oct 14, 2008
Grant Date -
Apr 20, 2006
app pub date -
Aug 17, 2005
filing date -
Oct 15, 2004
priority date (Note) -
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Abstract
A parasitic capacity C4 generated between a slider substrate and the first shield layer with the first insulating layer as a capacity layer is made substantially equal to a parasitic capacity C2 occurring between a lower magnetic layer and the second shield layer with the third insulating layer as a capacity layer. Preferably, a connection is made between the lower magnetic layer and the slider substrate by a resistance of preferably 100 (.OMEGA.) or lower. Thus, it is possible to provide a thin-film magnetic head that can hold back deterioration in a reproducing device and the occurrence of errors due to crosstalk between a recording device and the reproducing device and extraneous noises.
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