Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1992-08-11
1994-12-06
Wolff, John H.
Dynamic magnetic information storage or retrieval
Head
Hall effect
29603, G11B 533
Patent
active
053716434
ABSTRACT:
A magnetoresistive head is fabricated with a high yield rate by preventing the electrode film from breaking down. An upper shield film is formed with an electrode separation layer and an upper gap film disposed between it and the electrode film. The electrode film is prevented from being etched when the upper shield film is subjected to ion milling as a result. Further, the upper gap film is laid on top of the electrode separation layer, and a lead is satisfactorily protected and prevented from being exposed. Thus, the upper shield film and the lead are prevented from becoming short-circuited as a result of the disconnection of the electrode film and the exposure of the lead.
REFERENCES:
patent: 5010433 (1991-04-01), Kitada et al.
patent: 5095397 (1992-03-01), Nagata et al.
patent: 5225951 (1993-07-01), Kira et al.
patent: 5247413 (1993-09-01), Shibata et al.
Recording Characteristics of MR Head for Hard Disk Drive; S. Fuchigami et al; 1989, p. 228.
Lazzari, et al., "Integrated Magnetic Recording Heads", IEEE Transactions on Magnetics, vol. Mag-7, No. 1, Mar. 1971.
Kitada Masahiro
Morijiri Makoto
Ohwada Katsunori
Takeura Tooru
Yuito Isamu
Hitachi , Ltd.
Korzuch William R.
Wolff John H.
LandOfFree
Magnetoresistive head structure that prevents under film from un does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetoresistive head structure that prevents under film from un, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetoresistive head structure that prevents under film from un will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-218846