Patent ID: 9362489
Filing Date: 2016-06-07
CPC Classification: G11C,H01L

Claim Text:
1. A method of fabricating a magnetoresistive element comprises: providing a seed layer; forming a reference layer, atop the seed layer, having a magnetic anisotropy with an invariable magnetization direction; forming a tunnel barrier layer atop the reference layer; forming, atop the tunnel barrier layer, a crystalline structural quality and magnetic anisotropy enhancement bilayer (CSMAE bilayer) comprising an impurity absorbing layer with an interim thickness; annealing the CSMAE bilayer for crystalline structural quality and magnetic anisotropy enhancement; and etching out a top portion of the device in process until the impurity absorbing layer is reduced to a desirable thickness, whereby an undesirable spin pumping effect associated with the interim thickness of the impurity absorbing layer is mitigated.