VARIABLE-PULSE-WIDTH FLAT-TOP LASER DEVICE AND OPERATING METHOD THEREFOR

    公开(公告)号:US20230069985A1

    公开(公告)日:2023-03-09

    申请号:US17799268

    申请日:2021-02-05

    IPC分类号: B23K26/067 H01L21/02

    摘要: Provided are a variable pulse width flat-top laser device and an operation method therefor. A variable pulse width flat-top laser device includes a light source unit including first and second laser light sources driven at different times to respectively emit pulse-type first and second laser beams, a beam shaping unit configured to shape the first and second laser beams emitted from the light source unit into flat-top laser beams, a combination/split unit located between the light source unit and the beam shaping unit, and including a first beam combination/split unit configured to combine optical paths of the first and second laser beams and split a combined optical path into at least two optical paths so that the split at least two optical paths are directed to different regions of an incident surface of the beam shaping unit, and an imaging optical system configured to time-sequentially overlay the flat-top laser beams shaped by the beam shaping unit on a target object to form an image.

    DEVICE FOR TRANSFERRING ELECTRONIC COMPONENT AND METHOD FOR TRANSFERRING ELECTRONIC COMPONENT

    公开(公告)号:US20230068211A1

    公开(公告)日:2023-03-02

    申请号:US17830349

    申请日:2022-06-02

    摘要: A device for transferring electronic component, comprising: an energy source used to project an energy beam; a first frame used to carry a carrier loaded with electronic component; a second frame used to carry a substrate for receiving the aforesaid electronic component; a beam splitting element arranged between the first frame and the energy source; and a focusing device arranged between the first frame and the beam splitting element. The present invention also relates to a method of transferring electronic component. The device for transferring electronic component and the method for transferring electronic component of the present invention can be applied in the manufacturing process of display.

    PULSE DURATION MEASURING APPARATUS

    公开(公告)号:US20230054345A1

    公开(公告)日:2023-02-23

    申请号:US17817389

    申请日:2022-08-04

    申请人: DISCO CORPORATION

    摘要: A pulse duration measuring apparatus includes a polarizing beam splitter for splitting a pulsed laser beam into a first laser beam and a second laser beam, a first mirror for reflecting the first laser beam traveling toward the polarizing beam splitter, a second mirror for reflecting the second laser beam traveling toward the polarizing beam splitter, a first quarter wavelength plate disposed between the polarizing beam splitter and the first mirror, a second quarter wavelength plate disposed between the polarizing beam splitter and the second mirror, an optical path length changing unit for moving the first mirror or the second mirror to change the length of the respective optical paths, a nonlinear crystal body for allowing a combined laser beam to pass therethrough, and a photodetector for measuring an optical intensity of the combined laser beam that has passed through the nonlinear crystal body.

    PHASE MODIFIED QUASI-NON-DIFFRACTING LASER BEAMS FOR SIMULTANEOUS HIGH ANGLE LASER PROCESSING OF TRANSPARENT WORKPIECES

    公开(公告)号:US20230036386A1

    公开(公告)日:2023-02-02

    申请号:US17872375

    申请日:2022-07-25

    摘要: A method of processing a transparent workpiece that includes directing a laser beam combination comprising a first beam and a second beam into the transparent workpiece simultaneously, the first beam passing through an impingement surface of the transparent workpiece at a first impingement location and the second beam passing through the impingement surface at a second impingement location. The first beam forms a first laser beam focal line in the transparent workpiece and generates a first induced absorption to produce a first defect segment within the transparent workpiece, the first defect segment having a first chamfer angle and the second beam forms a second laser beam focal line in the transparent workpiece and generates a second induced absorption to produce a second defect segment within the transparent workpiece, the second defect segment having a second chamfer angle, the second chamfer angle differing from the first chamfer angle.

    MACHINING APPARATUS FOR LASER MACHINING A WORKPIECE, METHOD FOR LASER MACHINING A WORKPIECE

    公开(公告)号:US20220379402A1

    公开(公告)日:2022-12-01

    申请号:US17642065

    申请日:2020-09-17

    发明人: Colin WORATZ

    IPC分类号: B23K26/067 B23K26/38

    摘要: A machining apparatus for laser machining a work-piece, in particular for laser cutting, is provided, having a device for generating a machining laser beam, for rough machining the work-piece, in particular for producing cuts with cut edges in the workpiece, and having a device for splitting the machining laser beam into at least two energy intensity ranges, wherein a first energy intensity range for rough machining of the workpiece has a greater time-integrated radiation energy than at least one second energy intensity range for at least partially fine machining a cut edge. Further provided is a method a for laser machining a workpiece.

    LASER PROCESSING SYSTEM AND METHOD THEREOF

    公开(公告)号:US20220314364A1

    公开(公告)日:2022-10-06

    申请号:US17595764

    申请日:2021-04-06

    摘要: A laser processing system according to an embodiment of the present invention includes: a laser unit emitting a laser beam; an optical unit disposed on a propagation path of the laser beam and modulating the incident laser beam into a Bessel beam; a stage on which a workpiece to be processed with the Bessel beam emitted from the optical unit is mounted; and a control unit for controlling the operations of the laser unit, the optical unit, and the stage, wherein the optical unit is configured to position the focus line of the emitted Bessel beam on the workpiece and to move the focus line positioned on the workpiece with a predetermined range.