Patent ID: 6329211
Filing Date: 2001-12-11
Classification: G11B,Y10T

Abstract:
A method of manufacturing a thin film magnetic head with an inductive type thin film magnetic head having a first magnetic member including a first pole portion and a first yoke part, a second magnetic member including a second pole portion constituting an air bearing surface opposing to the first pole portion via a write gap film and to a magnetic recording medium as well as the first pole portion and a second yoke part magnetically connected to the first yoke in the position apart from the air bearing surface, a thin film coil including the part surrounded by the first and second magnetic members, and a substrate to support the first and second magnetic members and the thin film coil, comprising steps of:forming a magnetic film to constitute at least the first yoke part of the first magnetic member so as to be supported by the substrate,forming at least the second pole portion of the second magnetic member, on the write gap film, in a desired pattern by a photolithography method after the write gap film is formed on the magnetic film, andsubsequently dry-etching at least the second pole portion to reduce its width relative to its width after patterning.