Servo write head

Details Servo write head Servo write head

2005-09-13

2005-09-13

Miller, Brian E. (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Plural gaps

C360S077120

Reexamination Certificate

active

06943987

ABSTRACT:
A servo write head for magnetic tape is provided. The invention includes first and second non-magnetic substrates and first and second magnetic layers deposited between the non-magnetic substrates. A middle non-magnetic substrate is then deposited between the first and second magnetic layers and forms the magnetic gap. In one embodiment, non-magnetic protective layers are placed between the middle substrate and magnetic layers and form part of the gap. A contoured top layer of magnetic material is deposited across the other layers and substrates and has at least one recording gap, and wherein the top layer forms a magnetic pattern for writing a servo pattern to the tape.

REFERENCES:
patent: 5572392 (1996-11-01), Aboaf et al.
patent: 5963400 (1999-10-01), Cates et al.
patent: 6005737 (1999-12-01), Connolly et al.
patent: 6104562 (2000-08-01), Ottesen et al.
patent: 6166870 (2000-12-01), Cates et al.
patent: 6392840 (2002-05-01), Chen
patent: 6710967 (2004-03-01), Hennecken et al.

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