G - Physics – 11 – B
Patent
G - Physics
11
B
352/29.2
G11B 5/31 (2006.01) G11B 5/147 (2006.01)
Patent
CA 1041663
ABSTRACT: The invention relates to a method of manufacturing a magnetic head. In this method a pattern is formed in a nickel-iron layer by means of a photoetching process. According to the invention, the nickel-iron layer is provided with an auxiliary layer of titanium, titanium oxide or silicon oxide and with a photolacquer layer in a pattern which corresponds to the pattern desired, in the nickel-iron layer. The lacquer layer pattern does not cover a part of the auxiliary layer and serves as an etching mask for the simultaneous etching of the auxiliary layer and the nickel- iron layer. - 13 -
215508
Bertens Theodorus C.j.m.
Koel Gerrit J.
N.v. Philips Gloeilampenfabrieken
Na
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