SCRIBING THIN CERAMIC MATERIALS USING BEAM FOCAL LINE

    公开(公告)号:US20210205932A1

    公开(公告)日:2021-07-08

    申请号:US17056046

    申请日:2019-05-23

    Abstract: Embodiments of a method of scribing a ceramic material are provided. In the method, a ceramic material having a thickness of 500 μm or less between a first outer surface and a second outer surface is provided. The second outer surface is opposite the first outer surface. A beam focal line is directed at the ceramic material, and the beam focal line has a length over which its intensity is greater than a damage threshold of the ceramic material. The length is longer than the thickness of the ceramic material. Further, a damage track defining at least a first section of the ceramic material and a second section of the ceramic material is created by moving the beam focal line relative to the ceramic material. Also provided are embodiments of a laser scribed component and embodiments of a laser scribed ceramic substrate.

    Gas permeable window and method of fabricating the same

    公开(公告)号:US10525657B2

    公开(公告)日:2020-01-07

    申请号:US15078097

    申请日:2016-03-23

    Abstract: A gas permeable glass window, suitable for use with liquid interface additive manufacturing, has an optically transparent glass article greater than about 0.5 millimeters in thickness defining a first surface and a second surface. A plurality of gas channels are disposed through the article from the first surface to the second surface. The gas channels occupy less than about 1.0% of a surface area of the article and are configured such that the article has a gas permeability between about 10 barrers and about 2000 barrers.

    METHODS FOR FORMING HOLES IN SUBSTRATES
    16.
    发明申请

    公开(公告)号:US20190321921A1

    公开(公告)日:2019-10-24

    申请号:US16377947

    申请日:2019-04-08

    Abstract: Methods for forming holes in a substrate by reducing back reflections of a quasi-non-diffracting beam into the substrate are described herein. In some embodiments, a method of processing a substrate having a first surface and a second surface includes applying an exit material to the second surface of the substrate, wherein a difference between a refractive index of the exit material and a refractive index of the substrate is 0.4 or less, and focusing a pulsed laser beam into a quasi-non-diffracting beam directed into the substrate such that the quasi-non-diffracting beam enters the substrate through the first surface. The substrate is transparent to at least one wavelength of the pulsed laser beam. The quasi-non-diffracting beam generates an induced absorption within the substrate that produces a damage track within the substrate.

    LASER CUTTING OF THERMALLY TEMPERED SUBSTRATES

    公开(公告)号:US20190177203A1

    公开(公告)日:2019-06-13

    申请号:US16276909

    申请日:2019-02-15

    Abstract: Systems and methods for laser-cutting thermally tempered substrates are disclosed. In one embodiment, a method of separating a thermally tempered substrate includes directing a laser beam focal line such that at least a portion of the laser beam focal line is within a bulk of the thermally tempered substrate. The focused pulsed laser beam is pulsed to form a sequence of pulse bursts comprising one or more sub-pulses. The laser beam focal line produces a damage track within the bulk of the tempered substrate along the laser beam focal line. Relative motion is provided between the focused pulsed laser beam and the tempered substrate such that the pulsed laser beam forms a sequence of damage tracks within the tempered substrate. Individual damage tracks of the sequence of damage tracks are separated by a lateral spacing, and one or more microcracks connect adjacent damage tracks of the sequence of damage tracks.

    Laser marked calibration standards for on-line inspection camera qualification and methods of use

    公开(公告)号:US12175709B2

    公开(公告)日:2024-12-24

    申请号:US17710321

    申请日:2022-03-31

    Abstract: Durable calibration standards are described herein for inspection systems for manufactured vials, such as glass pharmaceutical vials, and methods of using the same. A grayscale calibration standard is provided for calibration of camera settings of imaging components in an inspection system. The grayscale calibration standard comprises a vial having a laser etched gradient image on a portion of the vial. A region of interest (ROI) calibration standard is provided for calibration of spatial difference of imaging components and to align imaging components in an inspection system to capture desired regions of interest. The ROI calibration standard comprises a vial comprising laser etchings on one or more portions of the vial, wherein the laser etchings comprise laser markings formed in a geometric pattern. By providing laser-marked calibration standards, the calibration standards may be used in many different modes of metrology.

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