Invention Grant
- Patent Title: Method and appliance for cutting materials by multi-beam femtosecond laser
-
Application No.: US16320585Application Date: 2017-07-25
-
Publication No.: US11883903B2Publication Date: 2024-01-30
- 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
- Applicant Address: FR Pessac
- Assignee: AMPLITUDE,CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE,UNIVERSITE DE BORDEAUX,ALPHANOV INSTITUT D'OPTIQUE D'AQUITAINE
- Current Assignee: AMPLITUDE,CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE,UNIVERSITE DE BORDEAUX,ALPHANOV INSTITUT D'OPTIQUE D'AQUITAINE
- Current Assignee Address: FR Pessac; FR Paris; FR Bordeaux; FR Talence
- Agency: NIXON & VANDERHYE
- Priority: FR 57138 2016.07.25 FR 57139 2016.07.25
- International Application: PCT/FR2017/052072 2017.07.25
- International Announcement: WO2018/020145A 2018.02.01
- Date entered country: 2019-01-25
- Main IPC: B23K26/0622
- IPC: B23K26/0622 ; B33Y10/00 ; B33Y30/00 ; B23K26/359 ; B23K26/53 ; B23K26/00 ; B23K26/06 ; B23K26/067 ; G02B5/00 ; G02B19/00 ; G02B27/09 ; G02B27/14 ; B23K26/38 ; B23K103/00

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
- US20190283178A1 METHOD AND APPLIANCE FOR CUTTING MATERIALS BY MULTI-BEAM FEMTOSECOND LASER Public/Granted day:2019-09-19
Information query
IPC分类: