Method for producing a photoelectroforming mandrel

Chemistry: electrical and wave energy – Processes and products – Vacuum arc discharge coating

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204192P, C23C 1400

Patent

active

045656169

ABSTRACT:
The present invention relates to a method for producing an electroforming mandrel. The method comprises providing a substrate which transmits actinic radiation with a pattern which masks the transmission of actinic radiation, depositing on a surface of the patterned substrate a continuous conductive film which transmits actinic radiation depositing on the conductive film a continuous layer of a photoresist, exposing said photoresist to actinic radiation through said masking substrate and conductive film, and developing said photoresist to selectively remove a portion thereof in order to uncover a pattern of the underlying conductive film.

REFERENCES:
patent: 947224 (1874-05-01), Herrington et al.
patent: 3703450 (1972-11-01), Bakewell
patent: 3833482 (1974-09-01), Jacobus
patent: 3991228 (1976-11-01), Carlson
patent: 4113599 (1978-09-01), Gillery
patent: 4421622 (1983-12-01), Hollars
patent: 4512864 (1985-04-01), Gillery

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