Patent ID: 7883783

Claim:
An electrodeposited copper foil with carrier foil comprising: a carrier foil; a bonding interface layer formed on top of the carrier foil; an electrodeposited copper foil layer formed on top of the bonding interface layer having a surface roughness (Rzjis) on both sides of less than 2 μm; a rust proofing layer comprising a nickel-zinc alloy formed on top of the electrodeposited copper foil layer, the nickel-zinc alloy having 60 to 80 wt % of Ni and 20 to 40 wt % of Zn; and an insulating resin layer formed on top of the rust proofing layer, wherein the insulating resin layer comprises: a) 20 to 80 parts by weight of an epoxy resin including a curing agent; b) 20 to 80 parts by weight of a solvent soluble aromatic polyamide resin polymer; and c) optionally a curing accelerator.