Patent ID: 6247640
Filing Date: 2001-06-19
Classification: H01L,H05K

Abstract:
A device for arranging conductive particles for connecting electric circuit boards, comprising:a mask including openings in a preselected pattern for arranging the conductive particles;a squeegee spaced from said mask by a preselected distance and movable over said mask in a preselected direction and configured to fill the conductive particles in said openings of said mask;a stage positioned below said mask and configured to hold the conductive particles filled in said openings of said mask;a vacuum suction mechanism positioned below said stage and configured to suck, via said stage, the conductive particles being moved on said mask by said squeegee into said openings of said mask; anda drive mechanism configured to control an inclination angle between the stage and the mask so as to prevent air from flowing into a gap between the mask and the stage,wherein projections smaller than a diameter of the conductive particles protrude from an edge of said squeegee adjoining said mask, andwherein said squeegee is movable with said projections contacting said mask.