Title: Roller-conveyed back-electrolysis process for cleaning and roughening copper surface of printed circuit board
Application Number: 96109444 Application Date: 1996.08.16
Publication Number: 1174252 Publication Date: 1998.02.25
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C25F1/04,C25F7/00
Applicant(s) Name: Ke Jianxin Address:
Inventor(s) Name:
Attorney & Agent: SHAO WEI
Abstract:
     In the said method, there is at least one electrolyser filled with electrolyte and provided with one immersed cathode plate. Printed circuit board as anode is transfered by roller conveyer through the electrolysers, so that partial cupper in printed circuit board is electrolyzed out and reduced in cathode plate and the surface of the printed circuit board is cleaned and roughened via back-electrolysis. Sulfuric acid as electrolyte can be reused and cupper deosited in cathode is reduced, and this can protect environment and reuse material.
Time: 6
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