Semiconductor device manufacturing: process – Having magnetic or ferroelectric component
Reexamination Certificate
2006-08-01
2006-08-01
Picardat, Kevin M. (Department: 2822)
Semiconductor device manufacturing: process
Having magnetic or ferroelectric component
C438S238000, C438S692000
Reexamination Certificate
active
07083989
ABSTRACT:
In a thin-film magnetic head having a multilayered film developing a magnetoresistive effect, which is present between an upper shielding layer and a lower shielding layer both formed above an AlTiC substrate, a recess for defining the lower shielding layer is formed in an underlayer present on a surface of the AlTiC substrate, and a lower shielding layer made of NiFe is provided in the recess. A SiO2film is interposed between the underlayer and the lower shielding layer.
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Alps Electric Co. ,Ltd.
Picardat Kevin M.
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