David1205754
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Electroless copper sulfate information
Could anyone has the electroless copper sulfate product information, formulation, application and the price? I would like to purchase some to add in
my product?Thanks!!!
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Jamjar
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An overview of the process.
http://www.pwbrc.org/bmr/ec.htm
"Copper Deposition. Electroless copper baths can be divided into two types: heavy deposition baths (designed to produce 75 to 125 micro-inches of
copper) and light deposition baths (20 to 40 micro-inches). Light deposition must be followed immediately by electrolytic copper plating. The more
common heavy deposition can survive the outer layer imaging process, and copper electroplating occurs thereafter. The main constituents of the
electroless copper chemistry are sodium hydroxide, formaldehyde, EDTA (or other chelater), and a copper salt. In the complex reaction, catalyzed by
palladium, formaldehyde reduces the copper ion to metallic copper. Formaldehyde (which is oxidized), sodium hydroxide (which is broken down), and
copper (which is deposited) must be replenished frequently. "
Some products used in Electronics industry.
http://www.electrochemicals.com/eless_cu.html
http://www.chestech.co.uk/pdf-pwb/Circuposit_Electroless_Cop...
Some patents that show formulations.
http://www.freepatentsonline.com/result.html?p=1&edit_al...
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