Solution and process for treating copper and copper alloys

Details Solution and process for treating copper and copper alloys Solution and process for treating copper and copper alloys

1984-02-21

1985-04-09

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

134 3, 156903, 252 792, 252 794, 252142, C23F 100

Patent

active

045100187

ABSTRACT:
A solution and process for cleaning, deoxidizing and brightening copper or copper alloys comprising immersion of the copper or copper alloy in a solution comprising an aqueous mixture of sulfuric aid and peroxide, a low molecular weight ammonium compound, and a fatty acid amine. The solution may also be used as an etchant and/or to prepare copper or copper alloy for electroplating by modifying the concentrations of the solution's constituents.

REFERENCES:
patent: 2211400 (1940-08-01), Wood
patent: 3537926 (1970-11-01), Fischer
patent: 3756957 (1973-09-01), Shiga
patent: 3974086 (1976-08-01), Rauhut et al.
patent: 4141850 (1979-02-01), Readio et al.
patent: 4144119 (1979-03-01), Dutkewych et al.
patent: 4158952 (1979-06-01), Oliver et al.
patent: 4378270 (1983-03-01), Brasch
patent: 4459216 (1984-07-01), Nakazato

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