Patent ID: 6533162
Filing Date: 2003-03-18
Classification: B23K,H05K

Abstract:
A soldering method for soldering parts on a circuit board having through holes and surface mounting part lands, comprising the steps of:setting a printing mask having predetermined openings for said through holes and surface mounting part lands on the circuit board; providing a solder paste on the printing mask; dragging a roller along the surface of the printing mask and forcing the roller to rotate independent of the dragging so as to supply the solder paste to the through holes and the surface mounting part lands; removing the printing mask from the board; loading parts on said surface mounting part lands of said circuit board and inserting leads of the parts into the through holes; and heating and melting the solder paste on the circuit board so as to fix the parts to the circuit board, wherein a speed of peripheral velocity of the roller rotation is different than a speed of dragging.