Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating selected area
Patent
1995-03-15
1996-08-20
Bell, Bruce F.
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Coating selected area
205159, 205162, 205163, 205164, 205165, 205166, 205183, 205188, C25D 502, C25D 554, C25D 556, C23C 2800
Patent
active
055475582
ABSTRACT:
The invention relates to a process for directly electroplating a conductive metal to the inner walls of through-holes in printed-wiring boards. The process comprises steps of providing an aqueous dispersion containing graphite particles with an average particle diameter of 2 .mu.m or less or carbon black particles with an average particle diameter of 1 .mu.m or less; applying this aqueous dispersion to a surface of a nonconductive surface substrate; dipping the nonconductive surface in a strong acidic aqueous solution with pH 3 or lower to form a layer of said particles; and electroplating using the particle layer as a conductive layer.
REFERENCES:
patent: 4035265 (1977-07-01), Saunders
patent: 5015339 (1991-05-01), Pendleton
patent: 5389270 (1995-02-01), Thorn et al.
Sakamoto Yoshihiro
Tanimura Toshio
Bell Bruce F.
MEC Co. Ltd.
Wong Edna
LandOfFree
Process for electroplating nonconductive surface does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for electroplating nonconductive surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for electroplating nonconductive surface will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2328061