Dissolution of metals utilizing tungsten-diol combinations

Details Dissolution of metals utilizing tungsten-diol combinations Dissolution of metals utilizing tungsten-diol combinations

C - Chemistry, Metallurgy

23

F

149/23

C23F 1/18 (2006.01) C23F 1/16 (2006.01)

Patent

CA 1236384

DISSOLUTION OF METALS UTILIZING TUNGSTEN-DIOL COMBINATIONS ABSTRACT Improved metal dissolution rates are obtained when using a solution containing sulfuric acid, hydrogen peroxide and combina- tions of catalytic amounts of tungsten and of certain diols. The present invention relates to the dissolution of metals in an aqueous bath containing sulfuric acid and hydrogen peroxide, and in particular to a novel bath composition capable of effecting the dissolution at high rates. In one specific aspect the invention is concerned with etching of copper in the production of printed circuit boards.

471337

Affiliated with

Also associated with

Rating

Dissolution of metals utilizing tungsten-diol combinations does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dissolution of metals utilizing tungsten-diol combinations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dissolution of metals utilizing tungsten-diol combinations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1320009