Etchant and process of etching

Details Etchant and process of etching Etchant and process of etching

C - Chemistry, Metallurgy

09

K

149/10

C09K 13/00 (2006.01) C23F 1/02 (2006.01)

Patent

CA 1092009

ETCHANT AND PROCESS Abstract of the Disclosure This invention is directed to an etchant and to a process for its use. The etchant comprises a synergistic combination of hydrogen peroxide and molybdenum as oxidants in acidic solution. The combination of oxidants provides for sustained etching at an exalted rate. The etchant is useful for etching metals, especially copper and its alloys, and is particularly useful in the manufacture of printed circuit boards.

290979

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