SQUEEGEE FOR SCREEN PRINTING

摘要

A SQUEEGEE (15) FOR SCREEN PRINTING USED FOR APPLYING SOLDER PASTE (60) ON A CIRCUIT BOARD (12) IS PROVIDED WIH A METALLIC BLADE (20) MADE OF AN ELASTIC PLATE. THE METALLIC BLADE (20) IS FORMED WITH DEPRESSIONS (21) THEREON BY ETCHING, FOR EXAMPLE. THE METALLIC BLADE (200 MAY BE COATED WITH RESIN OF ETHYLENE TETRAFLUORIDE, SUCH AS POLYTETRAFLUOROETHYLLENE. THE DEPTH OF THE DEPRESSIONS (21) MAY BE SMALLER THAN THE DIAMETER OF METALLIC PARTICLES (70) INCLUDED IN THE SOLDER PASTE.