Patent ID: 7340824
Filing Date: 2008-03-11
Classification: G11B,Y10T

Abstract:
1. A method for fabricating a magnetic head, comprising: fabricating a first magnetic shield layer upon a slider substrate; fabricating a chemical mechanical polishing (CMP) stop layer upon said first magnetic shield layer; fabricating a patterned photoresist layer upon said CMP stop layer, where openings in said photoresist layer expose an upper surface of said CMP stop layer; forming a pocket having a pocket depth by ion milling within said surface of said first magnetic shield layer at said openings in said photoresist layer; depositing a fill layer upon said photoresist layer, such that said fill layer is sufficiently thick to fill said pocket; performing a chemical mechanical polishing step to remove said photoresist layer and portions of said fill layer down to said CMP stop layer; removing said CMP stop layer to expose said first magnetic shield layer; fabricating a sensor upon said first magnetic shield layer; fabricating electrical leads to electrically connect said sensor with magnetic head electrical interconnects; fabricating a second insulation layer upon said sensor and upon said electrical leads; fabricating a second magnetic shield layer upon said second insulation layer.