公开(公告)号：AU2003217557A1

公开(公告)日：2003-10-13

申请号：AU2003217557

申请日：2003-02-18

Applicant: MACDERMID INC

Inventor： KOLOGE DONNA M ,  LETIZE RAYMOND A ,  LARSON BRIAN

IPC: C23F1/00 ,  C23F1/40 ,  C23F1/44 ,  H05K3/06 ,  H05K3/20 ,  H05K3/26 ,  B44C1/22

Abstract: A method of stripping silver from a printed circuit board without attacking the underlying base metal. The stripping solution comprises an oxidizing agent, an alkaline pH adjuster, and a silver solubilizing agent. After the silver has been sufficiently removed from the surface of the printed circuit board, the printed circuit board is contacted with a neutralization solution to remove any smut remaining on the surface. The silver stripping solution does not contain cyanide or chromium and does not require the use of anodic current.

公开(公告)号：EP1487646A4

公开(公告)日：2010-01-13

申请号：EP03713509

申请日：2003-02-18

Applicant: MACDERMID INC

Inventor： KOLOGE DONNA M ,  LETIZE RAYMOND A ,  LARSON BRIAN

IPC: C23F1/00 ,  C23F1/40 ,  C23F1/44 ,  H05K3/06 ,  H05K3/20 ,  H05K3/26 ,  B44C1/22

CPC classification number: C23F1/40 ,  C23F1/44 ,  H05K3/067 ,  H05K2203/0361 ,  H05K2203/0796