Patent ID: 7164097

Claim:
A solder ball bonding method for performing bonding of a plurality of electrode portions, the electrode portions formed having V-shaped cross sections by abutting of objects to be bonded, by melting a plurality of solder balls, the solder ball bonding method comprising: suctioning the solder balls by using a plurality of suction nozzles that follow the electrode portions of the objects to be bonded; conveying the solder balls so that the solder balls contact the V-shaped grooves of the electrode portions; restricting rolling of the solder balls in a ridge line direction of the V-shaped grooves of the electrode portions by using the suction nozzles; moving a laser irradiation portion that is positioned above the suction nozzles in a direction along which the suction nozzles are arranged; and irradiating the solder balls with laser light passing through suction openings of the suction nozzles by using the laser irradiation portion, to melt the plurality of solder balls on the electrode portions.