Patent ID: 8526473
Filing Date: 2013-09-03
Classification: B23K,H01S

Abstract:
1. A method for processing a workpiece with a laser, the method comprising: associating a plurality of temporal pulse profiles with respective target classes, each temporal pulse profile being tailored for a type of target in the corresponding target class, at least a first temporal pulse profile comprising a plurality of features within a single pulse that define a different shape than that of a second temporal pulse profile, and wherein the plurality of features are selected from a group comprising one or more peaks, one or more plateaus, and one or more slopes; selecting a first target on the workpiece to process, the selected first target corresponding to a first target class associated with the first temporal pulse profile, wherein a second target on the workpiece is associated with a second temporal pulse profile corresponding to a second target class; selecting, in response to the selection of the first target to process, the first temporal pulse profile for processing the first target; generating a laser pulse based on laser system input parameters configured to shape the laser pulse according to the selected first temporal pulse profile; detecting a temporal pulse profile of the generated laser pulse; comparing the detected temporal pulse profile of the generated laser pulse to the selected first temporal pulse profile, wherein the comparison determines whether each of the plurality of features are within a predetermined tolerance; and adjusting the laser system input parameters based on the comparison.