RECORDING READ HEADS WITH A MULTI-LAYER AFM LAYER METHODS AND APPARATUSES

摘要

Apparatuses and methods of recording read heads with a multi-layer anti-ferromagnetic (AFM) layer are provided. The AFM layer has gradient Manganese (Mn) compositions. A multi-layer AFM layer comprises a plurality of sub-layers having different Mn compositions. An upper sub-layer has a higher Mn composition than an lower sub-layer. Different types of gases may be used to deposit each sub-layer and the flow of each gas may be adjusted.

主权项

1. A method of manufacturing a read head, comprising:
fabricating a multi-layer anti-ferromagnetic (AFM) layer, the multi-layer AFM layer comprising a first AFM sub-layer and a second AFM sub-layer, the first AFM sub-layer and the second AFM sub-layer having different Manganese (Mn) compositions; and sandwiching the multi-layer AFM layer between a pinned layer and a spacer.