Patent ID: 6754055
Filing Date: 2004-06-22
Classification: B82Y,G01R,G11B,G11C,H01F,H01L

Abstract:
A current-perpendicular-to-plane-type giant magneto-resistive effect element comprising:a laminated layer film having a trapezoidal cross-section, the laminated layer film not including an insulating layer; an upper electrode disposed above said laminated layer film; a lower electrode disposed below said laminated layer film; first and second hard magnetic films directly connected to opposite sides in the width direction of said laminated layer film without an intervening insulating layer disposed between the first and second hard magnetic films and the laminated layer film; first and second insulating layers formed above or under a same side of said respective first and second hard magnetic films; and an opening defined between said first and second insulating layers to restrict a current path between said upper electrode or said lower electrode and said laminated layer film, wherein said first and second hard magnetic films comprise Co:Cr:Pt having atomic ratio percentages of 78% Co, 10% Cr, and 12% Pt.