Thin film magnetic head including an integral layered shield str

Details Thin film magnetic head including an integral layered shield str Thin film magnetic head including an integral layered shield str

1994-08-26

1996-02-06

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Head

Core

360119, 29603, G11B 511, G11B 5147

Patent

active

054900280

ABSTRACT:
A thin film magnetic head is fabricated on a substrate by depositing a lower shield layer on the substrate. A lower layer of a magnetic yoke is situated on the lower shield layer to couple the yoke to the shield. Alternatively, the magnetic yoke is isolated from the lower shield layer by an insulative layer therebetween. At the same time that first and second magnetic side poles are built up layer by layer via successive plating operations at the respective ends of a lower magnetic layer of the yoke, a side shield structure is plated up, layer by layer, at the periphery of the lower shield layer to surround resultant side pole structure. A shield cover is plated on the top of the side shield to substantially enclose the side pole structure, but leave an opening for an insulative pedestal though which the tops of the side poles extend. First and second magnetic poles are plated to the tops of the first and second side poles such that a gap region of non-magnetic material is formed therebetween.

REFERENCES:
patent: 3723665 (1973-03-01), Lazzari et al.
patent: 4157616 (1983-05-01), Bischoff
patent: 4414554 (1983-11-01), Springer
patent: 4470051 (1984-09-01), Springer
patent: 4494125 (1985-01-01), Springer
patent: 4503439 (1985-03-01), Springer
patent: 4503440 (1985-03-01), Springer
patent: 4539280 (1985-09-01), Springer
patent: 4544421 (1985-10-01), Springer
patent: 4639289 (1987-01-01), Lazzari
patent: 4809103 (1989-02-01), Lazzari
patent: 4837924 (1989-06-01), Lazzari
patent: 4901177 (1990-02-01), Lazzari
patent: 4912584 (1990-03-01), Mallary et al.
patent: 4942490 (1990-07-01), Lehureau
patent: 4949207 (1990-08-01), Lazzari
patent: 4970615 (1990-11-01), Gau
patent: 4984118 (1991-01-01), Springer
patent: 4992897 (1991-02-01), Deroux-Dauphin
patent: 5020212 (1991-06-01), Michijima et al.
patent: 5041932 (1991-08-01), Hamilton
patent: 5065271 (1991-11-01), Matsuura et al.
patent: 5073242 (1991-12-01), Hamilton
patent: 5090111 (1992-02-01), Lazzari
patent: 5111351 (1992-05-01), Hamilton
patent: 5163218 (1992-11-01), Hamilton
patent: 5166845 (1992-11-01), Thompson et al.
patent: 5168408 (1992-12-01), Lazzari
patent: 5189580 (1993-02-01), Pisharody et al.
patent: 5195006 (1993-03-01), Morikawa
patent: 5196976 (1993-03-01), Lazzari
patent: 5198948 (1993-03-01), Stover et al.
patent: 5202863 (1993-04-01), Miyatake et al.
patent: 5208716 (1993-05-01), Lazzari
patent: 5216559 (1993-06-01), Springer
patent: 5224260 (1993-07-01), Fedeli et al.
patent: 5260845 (1993-11-01), Takayama et al.
patent: 5266409 (1993-11-01), Schmidt et al.
patent: 5274521 (1993-12-01), Miyauchi et al.
patent: 5363265 (1994-11-01), Hsie et al.
U.S. patent application Ser. No. 07/531,832 filed Jun. 1, 1990, entitled Unitary Read-Write Head Array For Magnetic Media, Inventor Gilbert D. Springer.
A. Sano, M. Egawa, M. Nitta, K. Takayanagi, T. Matsushita, and T. Fujita, A Low Inductance Metal-In-Gap Head Using a Side-Core Concept, .COPYRGT.1993, IEEE Transactions on Magnetics, vol. 29, No. 6, pp. 3888-3890.
K. L. Mittal, Factors Affecting Adhesion Of Lithographic Materials, Solid State Technology, May 1979, pp. 89-100.
J. P. Lazzari and P. Deroux-Dauphin, A New Thin Film Head Generation IC Head, IEEE Transactions on Magnetics, vol. 25, No. 5, Sep. 1989, pp. 3173-3193.

Affiliated with

Also associated with

Rating

Thin film magnetic head including an integral layered shield str does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thin film magnetic head including an integral layered shield str, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin film magnetic head including an integral layered shield str will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2178970