Mattingly, Stanger & Malur, P.C.
Thin film magnetic head preventing corrosion and thin film magnetic head slider, and methods of producing the same
The present invention forms a conductor that is in electrically conductive contact, through an inside metal layer, with the magnetic thin film of the recording magnetic pole of a thin film magnetic head, and is also exposed to the outside. The equilibrium electrode potential of the conductor in an aqueous solution is set higher than that of the magnetic thin film, and its surface area is larger than the cross-sectional area of the magnetic thin film on the air bearing surface facing the magnetic recording medium. This makes it possible to retard corrosion of the recording magnetic thin film in the process of manufacturing thin film magnetic heads, whereby depletion of the magnetic thin film due to corrosion can be prevented, resulting in improved recording and reproducing qualities.
Hitachi Global Storage Technologies Japan, Ltd.
G Y
G11B Y10T
inventional additional
Yukihiro Hiroshi Takahiro Noriyuki
Isono Kikuchi Kato Saiki