Electrolysis: processes – compositions used therein – and methods – Product produced by electrolysis involving electrolytic...
Patent
1994-12-23
1995-10-03
Niebling, John
Electrolysis: processes, compositions used therein, and methods
Product produced by electrolysis involving electrolytic...
205 77, 428606, 428687, 428935, C25D 104
Patent
active
054549264
ABSTRACT:
This invention relates to electrodeposited copper foil having an elongation measured at 180.degree. C. in excess of about 5.5%, an ultimate tensile strength measured at 23.degree. C. in excess of about 60,000 psi, and a matte-side R.sub.tm in the range of about 4.5 to about 18 .mu.m. This invention also relates to a process for making electrodeposited copper foil which comprises: preparing a copper deposition bath comprising water, copper ions and sulfate ions, said bath containing less than about 20 ppm chloride ions; and applying electric current to said bath to electrodeposit copper from said bath using a current density in the range of about 200 to about 3000 amps per square foot.
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Clouser Sidney J.
DiFranco Dino F.
Hasegawa Craig J.
Centanni Michael A.
Gould Electronics Inc.
Mayekar Kishor
Niebling John
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