Patent ID: 7405141
Filing Date: 2008-07-29
Classification: B23K

Abstract:
1. A processing method which sequentially irradiates a predetermined position of a processing target body with a pulse laser beam emitted from a laser beam source by relatively moving an irradiation position irradiated by the pulse laser beam and the processing target body to thereby carry out processing, the processing method comprising: monitoring a light intensity of light reflected by the processing target body for each pulse laser beam emitted from the laser beam source; irradiating the next irradiation position of the processing target body with the pulse laser beam when the monitored light intensity is normal; re-irradiating a position of the processing target body which does not have sufficient light intensity when it is determined that the light intensity is insufficient as a result of the monitoring; and storing the irradiation position irradiated with the pulse laser light at the time of insufficient light intensity as light intensity insufficient irradiation position information.