Patent ID: 6243939
Filing Date: 2001-06-12
Classification: G11B,Y10T

Abstract:
A method for manufacturing an inductive write element comprising the steps of:a) providing a structure comprising a substrate;b) forming a first layer of pole material over said substrate;c) forming an write gap insulating layer formed on said first layer of pole material, said write gap insulating layer composed of a material having a high ion beam etch rate; said write gap insulating layer composed of a material selected from the group consisting of (a) Ni--Cu alloys, (b) Pd, and (c) Pd--Cu alloys;d) forming a second layer of pole material formed on said first insulating layer; said second layer having a shape that defines a second pole tip region and a second magnetic coil region;e) ion beam etching said second layer; said write gap insulating layer and said first layer; said second pole serving as an etch mask during the ion beam etching to form a inductive write-magnetoresistive (MR) head.