Patent ID: 7382576
Filing Date: 2008-06-03
Classification: G11B,Y10T

Abstract:
1. A manufacturing method of a magnetic head comprising: forming a lower magnetic core, forming a gap layer above the lower magnetic core, forming an end position of an upper magnetic core above the gap layer, forming a protective film above the end portion to cover the end portion, polishing the protective film by CMP to expose a surface of the end portion and to smoother the surface of the protective film, forming a coil and an insulator above the protective film, depositing a negative resist above the end portion and the insulator, forming a frame by exposing and developing the negative resist, forming a rear portion of the upper magnetic core by plating above the insulator and a part of the end portion using the frame formed by exposing and developing the negative resist as a mask, wherein a face of the rear portion is apart from a face of the end portion.