摘要 |
A method for manufacturing a substrate with a metal film includes preparing a first insulation layer having first and second surfaces, forming a first conductive circuit on the first surface of the first insulation layer, forming on the first surface of the first insulation layer and on the first conductive circuit a second insulation layer having first and second surfaces, forming in the second insulation layer a penetrating hole tapering from the first surface toward the first conductive circuit, forming on the inner wall of the penetrating hole, a composition containing a polymerization initiator and a polymerizable compound, providing a polymer on the inner wall of the penetrating hole by irradiating the composition, applying a plating catalyst on the polymer, and forming a plated-metal film on the inner wall of the penetrating hole. The first surface of the first insulation layer faces the second surface of the second insulation layer.
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