Patent ID: 6193130
Filing Date: 2001-02-27
Classification: B23K,H01L

Abstract:
A bump bonding apparatus for applying bumps to a semiconductor pellet, wherein the bump bonding apparatus comprises:a bump bonding stage for bonding bumps to electrodes of a semiconductor pellet;a loader section that holds a tray which accommodates therein a semiconductor pellet, and an unloader section that holds a tray which accommodates therein a semiconductor pellet to which bumps have been applied, said loader section and loader section being provided next to each other on one side of said bump bonding stage;a buffer station and a supply and holding station provided so as to correspond to said loader section and unloader section, respectively;a means for sending a tray from said loader section to said buffer station;a means for sending a tray from said supply and holding station to said unloader section;a means for sending a tray from said buffer station to said supply and holding station; anda pellet transfer mechanism for picking up said semiconductor pellet accommodated in said tray on said supply and holding station, transfer said semiconductor pellet to said bump bonding stage, and then returning said semiconductor pellet to which bumps have been applied to said tray that has accommodated said semiconductor pellet.