Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1983-06-27
1984-11-13
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156642, 156656, 1566591, 156666, 156901, 156345, C23F 100, B44C 122, C03C 1500, C03C 2506
Patent
active
044824254
ABSTRACT:
Reactor and method for removing a material such as copper from a substrate such as a printed circuit board, utilizing a liquid etchant. The work to be etched is placed in a narrow channel, and the etchant is pumped rapidly across the surface of the work at a rate such that the composition of the etchant does not change significantly from one side of the work to the other.
REFERENCES:
patent: 3751313 (1973-08-01), DiBenedetto et al.
patent: 4376009 (1983-03-01), Kunz
Powell William A.
Psi Star, Inc.
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