Patent ID: 9173300
Filing Date: 2015-10-27
Classification: H05K

Abstract:
1. A method of manufacturing a printed circuit board (PCB), the method comprising: filling first resin in a via-hole formed at a substrate from a first surface side of the substrate; curing the substrate to provide a first recessed portion on the first resin filled in the via-hole; emitting light during a predetermined period of time to the first resin filled in the via-hole from a second surface side opposite from the first surface side of the substrate; and applying a first layer of second resin on the second surface side of the substrate and the first recessed portion, wherein the applying the first layer of the second resin on the second surface side of the substrate comprises applying the first layer of the second resin two times, the applying the first of the second resin two times comprising: applying the first layer of the second resin on the second surface side of the substrate a first time; curing the substrate a first time; applying the first layer of the second resin on the second surface side of the substrate a second time; and curing the substrate a second time.