| abstract |
One embodiment of the present invention includes a copper layer, a rust preventive film disposed on the copper layer, and a hydrophilic polymer layer disposed on the rust preventive film, wherein the hydrophilic polymer layer is made of polyethylene glycol (PEG), polyethyleneimine (PEI (PEO-PPO-PEO copolymer) selected from the group consisting of polymethylmethacrylate (PMMA), polyacrylonitrile (PAN), polypropylene oxide (PPO) and polyethylene oxide-polypropylene oxide-polyethylene oxide copolymer A copper foil comprising a hydrophilic polymer is provided. |