Patent ID: 7670433

Claim:
A vacuum deposition apparatus of the winding type including: a vacuum chamber, an unwinding roller for continuously feeding an insulating film material, arranged in said vacuum chamber, a winding roller for taking up said insulating film material, a cooling roller for contact cooling said insulating film material arranged between said unwinding roller and said winding roller, and deposition means for forming a metal layer on said insulating film material arranged facing to said cooling roller, characterized in that said apparatus is further comprised of: an auxiliary roller for guiding said insulating film material in contact with the deposited metal layer and arranged between said winding roller and said cooling roller; voltage-applying means connected for applying a DC voltage between said auxiliary roller and said cooling roller; and electricity removing means connected for removing electricity from the film material while said film material runs in a plasma, and arranged between said cooling roller and said winding roller; said auxiliary roller being connected to ground; said cooling roller being connected to said voltage-applying means; and said electricity removing means being comprised of a plasma-forming chamber arranged in said vacuum chamber, said plasma-forming chamber including a slot configured to introduce said film material into said plasma-forming chamber, said plasma-forming chamber being connected to ground, and an electrode unit arranged in said plasma-forming chamber and connected to a discharge voltage source, said electricity removing means being a plasma generating source for generating said plasma in said plasma-forming chamber.