Device for aligning a photomask onto a printed wiring board

Details Device for aligning a photomask onto a printed wiring board Device for aligning a photomask onto a printed wiring board

1987-04-22

1988-12-27

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Radiation modifying product or process of making

Radiation mask

430 30, 430311, 355 86, 355100, G03F 900, G03C 500, G03B 2704, G03B 2730

Patent

active

047940611

ABSTRACT:
An apparatus for applying a phototool to a light sensitive substrate by means of a roller for applying the phototool to the substrate and a vacuum restraining means for restraining the phototool to maintain it under tension during application of the phototool to the substrate.

REFERENCES:
patent: 3865254 (1975-02-01), Johannsmeier
patent: 3940211 (1976-02-01), Johannsmeier
patent: 4204736 (1980-05-01), Hamada et al.
patent: 4508802 (1985-04-01), Heiart et al.
patent: 4518667 (1985-05-01), Heiart et al.
patent: 4522903 (1985-06-01), Heiart et al.
patent: 4527890 (1985-07-01), Heiart et al.
patent: 4548884 (1985-10-01), Heiart

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