Patent ID: 7987590
Filing Date: 2011-08-02
Classification: H05K,Y10T

Abstract:
1. A method for manufacturing an electronic part, comprising: forming a conductor portion including a wiring pattern and a columnar conductor in a part formation area of a substrate sheet; forming a projecting portion to surround the part formation area of the substrate sheet, including a gap providing communication from the part formation area to outside the projecting portion; computing an amount of insulating resin required for forming an insulating layer in an area of the substrate sheet including the projecting portion pressing the substrate sheet with a foil including the computed amount of insulating resin thereon, contacting the foil with the columnar conductor; softening the insulating resin by heating to cause the insulating resin to flow over the part formation area, the projecting portion increasing flow resistance of the softened insulating resin; and curing the insulating resin by further heating to form the insulating layer having a predetermined thickness based on the heights of the columnar conductor and the projecting portion, wherein the computed amount of insulated resin reflects a volume of insulating resin in the area of the substrate sheet including the projecting portion required to achieve the predetermined thickness, taking into account a volume of the conductor portion and the projecting portion, which is based on heights of the columnar conductor and the projecting portion, and the projecting portion is formed together with the wiring pattern and the columnar conductor in the same step.