Method of making narrow track width magnetoresistive sensor

Details Method of making narrow track width magnetoresistive sensor Method of making narrow track width magnetoresistive sensor

2006-11-14

2006-11-14

Kim, Paul D. (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603130, C029S603150, C029S603160, C029S603180, C204S192150, C216S022000, C216S048000, C360S324100, C360S324110, C360S324120, C427S127000, C427S128000

Reexamination Certificate

active

07134185

ABSTRACT:
A method and system for forming a microscopic transducer are described. The method and system include forming a plurality of adjoining sensor layers. The sensor layers include a first magnetically soft layer, a nonmagnetic layer on the first magnetically soft layer, and a second magnetically soft layer on the nonmagnetic layer. The method and system also include forming a sidewall over the second magnetically soft layer. The sidewall formation includes forming a base having a surface oriented substantially perpendicular to the sensor layers and depositing an electrically conductive material on the surface. The method and system also include removing a portion of the sensor layers not covered by the sidewall.

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