CPC H01F 27/06 (2013.01) [H01F 27/255 (2013.01); H01F 27/29 (2013.01)] | 20 Claims |
1. A multilayer metal film disposed on a base having insulating properties, comprising:
a first metal film in contact with the base, the first metal film being electrically conductive;
a second metal film covering the first metal film from a side of the first metal film opposite to the base, the second metal film having resistance to solder leaching; and
a catalytic layer disposed between the first metal film and the second metal, the first metal film including a pore portion adjacent to the catalytic layer.
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