Patent ID: 7944648
Filing Date: 2011-05-17
Classification: G11B

Abstract:
1. A head slider, comprising: a slider body; an insulating nonmagnetic film laminated on an air outflow side end face of the slider body; a magnetoresistive effect film in the nonmagnetic film; first and second magnetic, conductive shield layers in the nonmagnetic film and connected to each other through the magnetoresistive effect film interposed therebetween; a first wiring pattern in the nonmagnetic film and connected to the magnetoresistive effect film through the first shield layer; a second wiring pattern in the nonmagnetic film and connected to the magnetoresistive effect film through the second shield layer; a third wiring pattern in the nonmagnetic film and connected to the first and second shield layers in parallel to the magnetoresistive effect film; and a switching element in the nonmagnetic film and configured to switch conductivity of the third wiring pattern between conduction and non-conduction.