Method of abrading a hardened resin

Details Method of abrading a hardened resin Method of abrading a hardened resin

B - Operations, Transporting

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B

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B24B 29/00 (2006.01) B24B 1/00 (2006.01) H05K 3/00 (2006.01) H05K 3/28 (2006.01)

Patent

CA 2001834

METHOD OF ABRADING A HARDENED RESIN Abstract of the Disclosure A method of treating a metal-plated board for the removal of a hardened, alkali-soluble resin layer therefrom, comprising the steps of: (a) contacting a surface of the resin layer with an aqueous alkaline liquid such as an aqueous sodium carbonate solution to swell the surface; (b) abrading the resin layer having the swollen surface, step (b) being preceded by or simultaneous with step (a); and (c) then washing the abraded surface with an aqueous neutral liquid such as water.

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