Patent ID: 7776387
Filing Date: 2010-08-17
Classification: B82Y,G01R,G11B,H01F,H01L,Y10T

Abstract:
1. A method for manufacturing a magneto-resistance effect element, comprising: forming a first magnetic layer; forming a first metallic layer, on said first magnetic layer, mainly containing an element selected from the group consisting of Cu, Au, Ag; forming a functional layer, on said first metallic layer, mainly containing an element selected from the group consisting of Si, Hf, Ti, Mo, W, Nb, Mg, Cr and Zr; forming a second metallic layer, on said functional layer, mainly containing Al; after forming said second metallic layer, treating said second metallic layer by means of pre-ion treatment and oxidizing, nitriding or oxynitiriding so as to form a current confined layer including an insulating layer and a current path with a conductor passing a current through said insulating layer; and forming, on said current confined layer, a second magnetic layer.