Global Patent Index - EP 1034534 A1

EP 1034534 A1 2000-09-13 - METHOD OF MANUFACTURING A THIN-FILM MAGNETIC HEAD

Title (en)

METHOD OF MANUFACTURING A THIN-FILM MAGNETIC HEAD

Title (de)

HERSTELLUNGSVERFAHREN EINES DÜNNFILMMAGNETKOPFES

Title (fr)

PROCEDE DE FABRICATION D'UNE TETE MAGNETIQUE COMPORTANT UNE COUCHE MINCE

Publication

EP 1034534 A1 (EN)

Application

EP 99931254 A

Priority

  • EP 99931254 A
  • EP 9904710 W
  • EP 98202354 A

Abstract (en)

[origin: WO0004534A1] A method of manufacturing a thin-film magnetic head which is wear-resistant, on the one hand, but has only minimal transducing losses, on the other hand. A layer structure (3) is formed on a substrate (1), whereafter a wear-resistant material (9) is deposited on a surface constituted by a face of the substrate and a face of the layer structure. Before deposition of the wear-resistant material, the surface is selectively etched chemically, with the face of the substrate being moved backwards with respect to the face of the layer structure. After deposition of the wear-resistant material, wear-resistant material is removed from the face of the layer structure by means of a mechanical treatment, and a head face (10) is formed.

IPC 1-7 (main, further and additional classification)

G11B 5/31

IPC 8 full level (invention and additional information)

G11B 5/31 (2006.01); G11B 5/39 (2006.01)

CPC (invention and additional information)

G11B 5/3925 (2013.01); G11B 5/3106 (2013.01); G11B 5/3903 (2013.01); G11B 5/3967 (2013.01)

Citation (search report)

See references of WO 0004534A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0004534 A1 20000127; CN 1273664 A 20001115; EP 1034534 A1 20000913; JP 2002520765 A 20020709

INPADOC legal status


2002-01-02 [18W] WITHDRAWN

- Date of withdrawal: 20011031

2000-09-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000727

2000-09-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE