Thin film head for a magnetic storage device

Details Thin film head for a magnetic storage device Thin film head for a magnetic storage device

1992-12-02

1994-01-25

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156643, 156656, 1566591, B44C 122, C23F 100

Patent

active

052813002

ABSTRACT:
A method for fabricating a thin-film magnetic head comprises the steps of providing an alignment marker used for alignment in patterning processes on an insulating layer, depositing a conductor base layer on the insulating layer to bury the alignment marker underneath, growing a pattern on the conductor base layer by an electro-plating process while using said conductor base layer as an electrode, removing the conductor base layer except for a part thereof located under the pattern by a chemical etching process that acts selectively upon the conductor base layer while leaving the alignment marker and the insulating layer substantially unetched.

REFERENCES:
patent: 4632724 (1986-12-01), Chesebro et al.
patent: 5059278 (1991-10-01), Cohen et al.
patent: 5141623 (1992-08-01), Cohen et al.

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