Patent ID: 6065201
Filing Date: 2000-05-23
Classification: B23K,B23P,B65G,H01L,H05K,Y10T

Abstract:
A method of transferring conductive balls comprising the steps of:(a) moving a suction head with pores towards the conductive balls disposed in a case and applying vacuum pressure to said pores;(b) sucking and picking up the conductive balls by means of said pores;(c) moving said suction head away from said case while vibrating said suction head at different frequencies which are changed within a predetermined frequency range;(d) moving said suction head to a position above a work piece;(e) moving said suction head towards said work piece;(f) making said pores communicate with atmosphere and then mounting said conductive balls onto said work piece; and(f) moving said suction head away from said work piece.