Patent ID: 7703662
Filing Date: 2010-04-27
Classification: B23K,H01L,H05K

Abstract:
1. A method for mounting one conductive ball on each of a plurality of pads which are provided on a substrate and on which an adhesive is formed, the method comprising the successive steps of: providing a mask having a plurality of through portions corresponding to positions where the plurality of pads are formed; disposing the substrate such that a plurality of conductive balls and the plurality of pads face each other in a direction perpendicular to a gravity direction; generating a potential difference between the plurality of conductive balls contained in a conductive ball container and the substrate; charging the mask up to a potential that is substantially equal to a potential of the plurality of conductive balls contained in the conductive ball container; and supplying the plurality of conductive balls to the plurality of pads by spraying the plurality of conductive balls.