公开(公告)号：CA2064641A1

公开(公告)日：1992-11-03

申请号：CA2064641

申请日：1992-04-01

Applicant: IBM

Inventor： ABOAF JOSEPH A ,  DENISON EDWARD V ,  KAHWATY VINCENT N ,  STEVING GERALD

IPC: G11B5/31 ,  G11B5/39 ,  G11B5/127

Abstract: An interleaved bi-directional magnetic tape head for contact recording has a stripe poletip 30 in the form of a thin film of a soft magnetic material deposited onto a magnetic ferrite substrate 22. A second thin film polepiece 40 is deposited over a gap region 26. A closure block 24 of a non-magnetic ceramic encloses the layers together with leveling insulation layers 32, 34 and deposited activating conductor turns 36. The stripe poletip extends for a distance just short of the first conductor turn and provides a balancing of the saturation moment of the pole pieces and provides for better recording capability, especially when operating in a trailing magnetic ferrite mode.

公开(公告)号：CA2054579A1

公开(公告)日：1992-06-27

申请号：CA2054579

申请日：1991-10-31

Applicant: IBM

Inventor： DENISON EDWARD V ,  KAHWATY VINCENT N ,  STERN GUSTAVE C ,  STEVING GERALD ,  ZAMMIT ROBERT P

IPC: G11B5/265 ,  G11B5/245 ,  G11B5/29 ,  G11B5/31 ,  G11B5/39 ,  G11B5/48

Abstract: In a magnetic recording system tape is transported bi-directionally across the interleaved head. The interleaved head includes two modules, each module having a plurality of alternate read and write transducer gaps spaced apart along a single gap line transverse to the movement of the magnetic tape. The two modules are placed together so that the write gaps of one module are aligned with the read gaps of the other module. Each module is formed on a nickel-zinc ferrite substrate by deposition of magneto-resistive material to form read transducer elements 69 and deposition of conductor material to form read conductors 74, 76 and 78 and write coils 80. A nickel zinc ferrite closure piece is secured to the substrate to complete the module. In order to provide leveling across the write and read transducers of the module, write back gap islands 90, 92 are provided in the back gap regions 68 of the write coils made of the same material with the same thickness as the magneto resistive element and the conductors interconnecting the magneto resistive element to the read/write network of the tape drive.