Electrowinning of direct metallization accelerators

Details Electrowinning of direct metallization accelerators Electrowinning of direct metallization accelerators

1993-09-13

1994-11-29

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Treating process fluid by means other than agitation or...

204120, C25D 2118

Patent

active

053687183

ABSTRACT:
A specially controlled electrolytic process for regenerating for reuse solutions such as the post activator solution used in the direct metallization process for making printed circuit boards is disclosed whereby the contaminant tin level of the operating solution is controlled at desired levels.

REFERENCES:
patent: 3532518 (1970-10-01), D'Ottavio
patent: 4052276 (1977-10-01), Yoshida et al.
patent: 4853095 (1989-08-01), D'Ambrisi
patent: 4859300 (1989-08-01), Sullivan et al.

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