Process for making a plane magnetic head and magnetic head obtai

Details Process for making a plane magnetic head and magnetic head obtai Process for making a plane magnetic head and magnetic head obtai

1996-11-04

1999-01-26

Powell, William

Etching a substrate: processes

Forming or treating thermal ink jet article

216 22, 216 38, B44C 122

Patent

active

058634509

ABSTRACT:
Process for making a plane magnetic head and magnetic head obtained by this process.
A hard protective layer surrounds polar parts. The non-magnetic spacer and polar parts are flush with the level of this protective layer. This layer is preferably made of diamond like carbon.

REFERENCES:
patent: Re33343 (1990-10-01), Lazzari
patent: 4391849 (1983-07-01), Bichoff
patent: 4698708 (1987-10-01), Lazzari
patent: 5013394 (1991-05-01), Rolland et al.
patent: 5228184 (1993-07-01), Kishi
Database WPI, Derwent Publications, AN 92-402351, Patent Abstracts of Japan, vol. 17, No. 109 (p-1497), and JP-A-04 298 806, Oct. 22, 1992.
Patent Abstracts of Japan, Vol. 16, No. 404 (p-1410), Aug. 26, 1992, and JP-A-04 134609, May 8, 1992.
Patent Abstracts of Japan, Vol. 10, No. 97 (p-446), Apr. 15, 1986, JP-A-60 229217, November 14, 1985.
Patent Abstracts of Japan, vol. 16, No. 504 (P-1439), Oct. 19, 1992, JP-4 182911, Jun. 30, 1992.
IBM Technical Disclosure Bulletin, Vol. 29, No. 4, pp. 1875-1876, Sep. 1986, "Ferrite Head Design and Fabrication".
IBM Technical Disclosure Bulletin, Vol. 9, No. 9, p. 1085, Feb. 1967, W.M. Groben, et al., "Wear Coating for a Tape Head".

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