Multiple beam drilling system

A method for laser drilling of holes in a substrate (44) with varying simultaneity including operating a laser (22) to produce a single output beam (24) whose pulses have a total energy, dividing the single output beam into plural beams (41) to an extent which varies over time and applying the plura...

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Bibliographische Detailangaben
Hauptverfasser:	KOTLER ZVI, NAVEH BENNY, GOLAN HANINA
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A method for laser drilling of holes in a substrate (44) with varying simultaneity including operating a laser (22) to produce a single output beam (24) whose pulses have a total energy, dividing the single output beam into plural beams (41) to an extent which varies over time and applying the plural beams to plural hole drilling locations (209, 210, 212, 214, 216, 218, 220, 222) on the substrate including simultaneously drilling first parts of multiple holes using corresponding ones of the plural beams having a pulse energy which is a first fraction of the total energy and thereafter drilling at least one second part of at least one of the multiple holes using at least one of the plural beams each having a pulse energy which is at least a second fraction of the total energy, the second fraction being different from the first fraction.