Pole design for thin film magnetic heads

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making named article

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430313, 430318, 430330, 430319, G03C 500

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active

051262320

ABSTRACT:
A thin film magnetic head including top and bottom pole tips having reversed trapezoidal cross sections. Mirror image symmetry across a gap region may be achieved. The top and bottom pole tips may be formed using a photolithographic process using positive photoresist including post bake and flood exposure steps.

REFERENCES:
patent: 4434445 (1984-02-01), Van Herk
patent: 4443294 (1984-04-01), Suenaga et al.
patent: 4536421 (1985-08-01), Matsuzawa et al.
patent: 4700253 (1987-10-01), Gerber et al.
patent: 4701820 (1987-10-01), McClure
patent: 4814243 (1989-03-01), Ziger
patent: 4900650 (1990-02-01), Das
T. Lwakura et al., Three Dimensional Simulation of Side Writing Field and for Thin Film Heads with Pole Shapes, International Conference on Magnetic, Apr. 1989, Washington, D.C.

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