Patent · US Expired

Method for fabricating a thin film magnetic head

US6920685B2 · kind B2 · utility

2Cited by
8References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 24, 2002
Grant dateJul 26, 2005
Priority date
Expiry dateJul 7, 2022

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/49078
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A writing magnetic pole portion composed of a first magnetic film and a second magnetic film formed on the first magnetic film via a gap film is fabricated on a given wafer. Then, the writing magnetic pole portion is swung forward and backward around a rotation standard axis parallel to a center line of the writing magnetic pole portion in a direction parallel to a surface of the. Then, the writing magnetic pole portion is milled during the swing of the writing magnetic pole portion to define the width of the writing magnetic pole portion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.