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WO1996028812B1 - Transducteur magnetoresistant façonne du type a valve en rotation et son procede de fabrication, y compris la technique de stabilisation des domaines - Google Patents

Transducteur magnetoresistant façonne du type a valve en rotation et son procede de fabrication, y compris la technique de stabilisation des domaines

Info

Publication number
WO1996028812B1
WO1996028812B1 PCT/US1996/003098 US9603098W WO9628812B1 WO 1996028812 B1 WO1996028812 B1 WO 1996028812B1 US 9603098 W US9603098 W US 9603098W WO 9628812 B1 WO9628812 B1 WO 9628812B1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
spin valve
valve type
magnetoresistive sensor
type magnetoresistive
Prior art date
Application number
PCT/US1996/003098
Other languages
English (en)
Other versions
WO1996028812A1 (fr
Filing date
Publication date
Priority claimed from US08/401,553 external-priority patent/US5608593A/en
Application filed filed Critical
Priority to KR1019960706326A priority Critical patent/KR970703585A/ko
Priority to JP8527710A priority patent/JPH10504926A/ja
Priority to EP96908694A priority patent/EP0759202A4/fr
Publication of WO1996028812A1 publication Critical patent/WO1996028812A1/fr
Publication of WO1996028812B1 publication Critical patent/WO1996028812B1/fr

Links

Abstract

L'invention concerne un transducteur magnétorésistant et son procédé de fabrication. La structure du transducteur, du type à valve en rotation, comprend, au niveau inférieur, une couche ferromagnétique fixée (58) et, au niveau supérieur, une couche ferromagnétique active (62) séparées par une couche d'espacement en métal amagnétique (60). La couche ferromagnétique active (62) et la couche d'espacement sous-jacente (60) sont façonnées en une structure mésa à cotés opposés coniques pour mieux contribuer à la planarisation de surface dans un processus de fabrication des couches minces. Il est possible de déposer une paire de sections de couche magnétique permanente (68, 70) aux extrémités de la structure en valve à rotation, dans une relation généralement coplanaire, pour contribuer à la stabilisation des domaines, mais on peut également les en séparer par une couche de démarcation relativement mince. La largeur de la piste de lecture magnétique du dispositif peut être déterminée de manière précise et fidèle selon un procédé photolithographique qui permet de définir l'espace entre les sections de couche magnétique permanente (68, 70) et qui recouvre la couche ferromagnétique active (62).
PCT/US1996/003098 1995-03-09 1996-03-04 Transducteur magnetoresistant façonne du type a valve en rotation et son procede de fabrication, y compris la technique de stabilisation des domaines WO1996028812A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019960706326A KR970703585A (ko) 1995-03-09 1996-03-04 소정 형태의 스핀 밸브형 자기 저항성 트랜스듀서 및 도메인 안정화 기법을 사용하여 이를 제조하는 방법(Shaped Spin Valve Type Magnetoresistive Transducer and Method for Fabricating the Same Incorporating Domain Stabilization Technique)
JP8527710A JPH10504926A (ja) 1995-03-09 1996-03-04 成形されたスピンバルブ型磁気抵抗トランスデューサおよび領域安定化技術を取入れたその製造方法
EP96908694A EP0759202A4 (fr) 1995-03-09 1996-03-04 Transducteur magnetoresistant fa onne du type a valve en rotation et son procede de fabrication, y compris la technique de stabilisation des domaines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/401,553 1995-03-09
US08/401,553 US5608593A (en) 1995-03-09 1995-03-09 Shaped spin valve type magnetoresistive transducer and method for fabricating the same incorporating domain stabilization technique

Publications (2)

Publication Number Publication Date
WO1996028812A1 WO1996028812A1 (fr) 1996-09-19
WO1996028812B1 true WO1996028812B1 (fr) 1996-11-07

Family

ID=23588223

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/003098 WO1996028812A1 (fr) 1995-03-09 1996-03-04 Transducteur magnetoresistant façonne du type a valve en rotation et son procede de fabrication, y compris la technique de stabilisation des domaines

Country Status (5)

Country Link
US (2) US5608593A (fr)
EP (1) EP0759202A4 (fr)
JP (1) JPH10504926A (fr)
KR (1) KR970703585A (fr)
WO (1) WO1996028812A1 (fr)

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