Invention Application
- Patent Title: METHOD AND APPLIANCE FOR CUTTING MATERIALS BY MULTI-BEAM FEMTOSECOND LASER
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Application No.: US16320585Application Date: 2017-07-25
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Publication No.: US20190283178A1Publication Date: 2019-09-19
- Inventor: Konstantin MISHCHIK , John LOPEZ , Rainer KLING , Clémentine JAVAUX-LEGER , Guillaume DUCHATEAU , Ophélie DEMATTEO-CAULIER
- Applicant: AMPLITUDE SYSTEMES , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , UNIVERSITE DE BORDEAUX , ALPHANOV INSTITUT D'OPTIQUE D'AQUITAINE
- Priority: FR1657138 20160725; FR1657139 20160725
- International Application: PCT/FR2017/052072 WO 20170725
- Main IPC: B23K26/0622
- IPC: B23K26/0622 ; B33Y10/00 ; B33Y30/00 ; B33Y40/00 ; B23K26/00 ; B23K26/067 ; B23K26/359 ; B23K26/53 ; B23K26/06 ; G02B27/14 ; G02B19/00 ; G02B5/00 ; G02B27/09

Abstract:
Disclosed is a method for cutting dielectric or semiconducting material with a laser. The method includes the following steps: emission of a laser beam including at least one burst of N femtoseconds laser pulses; spatial separation of the laser beam into a first split beam having a first energy, and respectively, a second split beam having a second energy; spatial concentration of energy of the first split beam in a first zone of the material, respectively, of the second split beam in a second zone of the material, the first zone and the second zone being separate and staggered by a distance dx; and adjustment of the distance between the first zone and the second zone in such a way as to initiate a straight micro-fracture oriented between the first zone and the second zone.
Public/Granted literature
- US11883903B2 Method and appliance for cutting materials by multi-beam femtosecond laser Public/Granted day:2024-01-30
Information query
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