Patent ID: 6403920
Filing Date: 2002-06-11
Classification: B23K,H05K

Abstract:
A laser processing method comprising:dividing a rectangle-shaped entire processing area on a work being processed into a plurality of processing areas; positioning two focusing devices such that an interval between center points of the two focusing devices is Â½ of a length of a side of the entire processing area; positioning the work being processed relative to the two focusing devices; branching a laser bean into two laser beams; focusing the two laser beams respectively by the two focusing devices; irradiating the two focused laser beams to respective processing areas, thereby performing laser processing in the processing areas on the work being processed; and moving the work being processed relative to the focusing devices, such that a straight line connecting the center points of the two focusing devices is kept parallel with the side of the entire processing area, to sequentially laser-process an untreated processing area adjacent to the treated processing area with the laser beams irradiated from the two focusing devices.