| 摘要 |
PROBLEM TO BE SOLVED: To provide a conductive sheet which ensures specific electric resistance in a via hole of any size while enhancing reliability in the electrical connection between conductive layers formed on both sides of an insulating film, respectively, and has good manufacturing efficiency without the breakage problem of voids. SOLUTION: The conductive sheet is provided with the conductive layers each formed on the surface and the rear of the insulating film. A material which constitutes at least one of the conductive layers is filled in each of the via holes, which physically pass through the insulating film, so that the insides of the holes are each entirely filled with the material. Thus, electrical connection can be established between both the front and the rear conductive layers. COPYRIGHT: (C)2004,JPO |
