Patent ID: 7276673
Filing Date: 2007-10-02
Classification: B23K,H01L,H05K

Abstract:
1. A solder bonding method for bonding electrode portions formed on an object to be bonded by melting a solder ball onto the electrode portions, the solder bonding method comprising: transferring the solder ball onto a prescribed position to be bonded to the electrode portions by suctioning the solder ball at a suction opening of a suction nozzle, wherein the suction opening doubles as a primary pathway of a laser light irradiation path and as a secondary pathway of a laser light irradiation path located around the primary pathway; and melting the solder ball by irradiating a laser light generated at a laser irradiation portion passing through the primary pathway, and heating at least one of the electrode portions by irradiating a laser light generated at the laser irradiation portion passing through the secondary pathway.