Dynamic magnetic information storage or retrieval – Head – Core
Patent
1994-05-31
1994-12-13
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Head
Core
360122, G11B 531, G11B 5187
Patent
active
053734084
ABSTRACT:
A thin film magnetic head is fabricated with shaping magnetic thin films, preferably formed of Permalloy, which have a stepped configuration. The thin films are deposited between the insulation layer surrounding the electrical coil and below the second pole layer P2 to form a double yoke. The thin films have corners at the stepped areas which pin the domain sites so that the magnetization of the P2 layer is properly aligned, thereby improving the data signal that is being recorded.
REFERENCES:
patent: 4242710 (1980-12-01), Hempstead et al.
patent: 4550353 (1985-10-01), Hirai et al.
patent: 4589042 (1986-05-01), Anderson et al.
patent: 4716484 (1987-12-01), Kaminaka et al.
patent: 4951166 (1990-08-01), Schewe
patent: 5047886 (1991-09-01), Toyoda et al.
patent: 5126907 (1992-06-01), Hamakawa et al.
patent: 5198949 (1993-03-01), Narisawa et al.
patent: 5218499 (1993-06-01), Wada et al.
"Film Head Structure Optimized for Writing", IBM Technical Disclosure Bulletin, vol. 31, No. 3, pp. 291-292, Aug. '88.
"Thin Film Magnetic Heads", K. E. Peterson, IBM Technical Disclosure Bulletin, vol. 21, No. 12, p. 5002, May '79.
Bischoff Peter G.
Chen Johnny C.
Tong Hua-Ching
Kallman Nathan N.
Levy Stuart S.
Read-Rite Corporation
Renner Craig A.
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