Nickel etching process and solution

Details Nickel etching process and solution Nickel etching process and solution

C - Chemistry, Metallurgy

23

F

149/15

C23F 1/28 (2006.01) H05K 3/06 (2006.01)

Patent

CA 1215301

ABSTRACT Process and solution for etching nickel and nickel alloys, particularly suitable for use in the manufacture of printed circuit boards. The nickel or alloy is contacted with an aqueous solution of nitric acid, nickel nitrate, a halogen additive and a surfactant. In some embodiments, a small amount of an amino acid is included in the solution to enhance the smoothness of the edges of the etched patterns.

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