Patent · US Active

Method and system for defining a read sensor using an ion mill planarization

US8597528B1 · kind B1 · utility

150Cited by
8References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 30, 2011
Grant dateDec 3, 2013
Priority date—
Expiry dateFeb 16, 2032

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B5/3163
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method and system for fabricating a magnetic transducer is described. A magnetic junction is defined from the magnetoresistive stack. The magnetic junction has a top and a plurality of sides. The step of defining the magnetic junction redeposits a portion of the magnetoresistive stack and forms fencing adjacent to the top of the magnetic junction. At least one hard bias structure is provided after the magnetic junction is defined. A first portion of the at least one hard bias structure is substantially adjacent to the magnetoresistive junction in a track-width direction. The magnetic junction is ion beam planarized, thereby substantially removing the fencing.

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