Patent ID: 8261437
Filing Date: 2012-09-11
Classification: H05K,Y10T

Abstract:
1. A method for manufacturing a circuit board comprising a substrate having a surface on which desired metal wirings are formed, comprising at least the steps of: using a mold, which has protrusions formed on one surface thereof in a pattern corresponding to a circuit pattern, and applying a conductive material layer to head portions of the protrusions of the mold; pressure-welding the mold, which has the protrusions with the head portions to which the conductive material layer has been applied, to the surface of the substrate and transferring a pattern comprising the protrusions and the conductive material layer to the surface of the substrate so that recesses are formed in the substrate, the conductive metal material layer being provided at bottoms of the recesses; and forming metal wirings in the recesses on the transferred conductive material layer.