Pre-plate cleaning process

Details Pre-plate cleaning process Pre-plate cleaning process

1990-07-30

1991-12-31

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making electrical device

430318, 430325, 430331, 134 2, 134 38, 134 40, 134 42, G03C 500

Patent

active

050771760

ABSTRACT:
Disclosed is a cleaning process for use primarily in the fabrication of printed circuit boards. Cleaning is done in-line with the coating and development of a photoresist layer. The process includes a spray cleaning and micro-etch, followed by the application of an anti-tarnish so that the boards can be stored prior to plating.

REFERENCES:
patent: 3868272 (1975-02-01), Tardoskegyi
patent: 4576685 (1986-03-01), Goffredo et al.
patent: 4576743 (1986-03-01), Kita et al.
patent: 4718972 (1988-01-01), Baku et al.
patent: 4894095 (1990-01-01), Schramm et al.

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