Patent ID: 8747628
Filing Date: 2014-06-10
Classification: G11B

Abstract:
1. A method, comprising: forming a first oxide magnetic layer above a substrate by sputtering; forming a second oxide magnetic layer directly on the first oxide magnetic layer by sputtering, wherein oxygen is flowed during forming the second oxide magnetic layer; forming a first layer of an exchange coupling layer above the second oxide magnetic layer, the first layer of the exchange coupling layer comprising an oxide, wherein no oxygen is flowed during forming the first layer of the exchange coupling layer; forming a second layer of the exchange coupling layer directly on the first layer of the exchange coupling layer, the second layer of the exchange coupling layer comprising an oxide, wherein oxygen is flowed during forming the second layer of the exchange coupling layer, the second layer of the exchange coupling layer having a different composition than the first layer of the exchange coupling layer; and forming a magnetic cap layer above the exchange coupling layer.