Microetching solution

Details Microetching solution Microetching solution

2008-07-01

2008-07-01

Culbert, Roberts (Department: 1792)

Etching a substrate: processes

Nongaseous phase etching of substrate

Etching inorganic substrate

Reexamination Certificate

active

07393461

ABSTRACT:
The present invention related to an improved microetching solution and a method of using the improved composition for roughening a metal surface and increasing the adhesion strength of a metal layer to a subsequently applied layer. The microetching composition is an aqueous solution comprising cupric ion source, a pyridine derivative, multiethyleneamine, and an acid. In a preferred embodiment, the microetching solution of the invention also comprises a source of halide ions such as sodium chloride or hydrochloric acid.

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