Patent · US Expired

Thin film magnetic head and method of manufacturing the same

US6724570B2 · kind B2 · utility

0Cited by
13References
40Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 8, 2001
Grant dateApr 20, 2004
Priority date—
Expiry dateAug 18, 2021

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B5/4886
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A thin film magnetic head having excellent recording characteristics is provided. In a structure of the thin film magnetic head, a thickness LT (&mgr;m) of a top pole chip and a distance LD (&mgr;m) between a position of a front edge surface of a top yoke and a position of an air bearing surface are adapted to satisfy LD&gE;LT&#8722;2.0 (&mgr;m) (LD&gE;0, LT<0). In the thin film magnetic head having such structural features, the above-mentioned thickness LT and distance LD having an influence upon recording characteristics are optimized, and thus the occurrence of side erase during recording can be prevented.

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