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    GROUP III NITRIDE SUBSTRATE WITH OXYGEN GRADIENT, METHOD OF MAKING, AND METHOD OF USE
    11.
    发明公开
    GROUP III NITRIDE SUBSTRATE WITH OXYGEN GRADIENT, METHOD OF MAKING, AND METHOD OF USE 审中-公开

    公开(公告)号：US20230167586A1

    公开(公告)日：2023-06-01

    申请号：US18072684

    申请日：2022-11-30

    Applicant: SLT Technologies, Inc.

    Inventor： Mark P. D'EVELYN ,  Keiji FUKUTOMI ,  Drew W. CARDWELL ,  David N. ITALIANO ,  Chiaki DOMOTO

    IPC: C30B29/40

    CPC classification number: C30B29/406 ,  C30B7/105

    Abstract: Embodiments of the present disclosure include techniques related to techniques for processing materials for manufacture of group-III metal nitride and gallium based substrates. More specifically, embodiments of the disclosure include techniques for substrates with a controlled oxygen gradient using a combination of processing techniques. Merely by way of example, the disclosure can be applied to growing crystals of GaN, AlN, InN, InGaN, AlGaN, and AlInGaN, and others for manufacture of bulk or patterned substrates. Such bulk or patterned substrates can be used for a variety of applications including optoelectronic and electronic devices, lasers, light emitting diodes, solar cells, photo electrochemical water splitting and hydrogen generation, photodetectors, integrated circuits, and transistors, and others.

    ALUMINUM-CONTAINING NITRIDE CERAMIC MATRIX COMPOSITE, METHOD OF MAKING, AND METHOD OF USE
    12.
    发明申请
    ALUMINUM-CONTAINING NITRIDE CERAMIC MATRIX COMPOSITE, METHOD OF MAKING, AND METHOD OF USE 有权

    公开(公告)号：US20230111390A1

    公开(公告)日：2023-04-13

    申请号：US17963910

    申请日：2022-10-11

    Applicant: SLT Technologies, Inc.

    Inventor： Mark P. D'EVELYN ,  David N. ITALIANO

    IPC: C04B35/581 ,  C04B35/65 ,  C04B35/645 ,  C04B35/626 ,  C09K11/02 ,  C09K11/77

    Abstract: Embodiments of disclosure may provide a method for forming an aluminum-containing nitride ceramic matrix composite, comprising heating a green body, an aluminum-containing composition, ammonia and a mineralizer composition in a sealable container to a temperature between about 400 degrees Celsius and about 800 degrees Celsius and a pressure between about 10 MPa and about 1000 MPa, to form an aluminum-containing nitride ceramic matrix composite characterized by a phosphor-to-aluminum nitride (AlN) ratio, by volume, between about 1% and about 99%, by a porosity between about 1% and about 50%, and by a thermal conductivity between about 1 watt per meter-Kelvin and about 320 watts per meter-Kelvin. The green body comprises a phosphor powder comprising at least one phosphor composition, wherein the phosphor powder particles are characterized by a D50 diameter between about 100 nanometers and about 500 micrometers, and the green body has a porosity between about 10% and about 80%. The aluminum-containing composition has a purity, on a metals basis, between about 90% and about 99.9999%. The fraction of free volume within the sealable container contains between about 10% and about 95% of liquid ammonia prior to heating the green body, the aluminum-containing composition, ammonia and the mineralizer composition in the sealable container.

    ULTRAPURE MINERALIZER AND IMPROVED METHODS FOR NITRIDE CRYSTAL GROWTH
    18.
    发明公开
    ULTRAPURE MINERALIZER AND IMPROVED METHODS FOR NITRIDE CRYSTAL GROWTH 审中-公开

    公开(公告)号：US20240240352A1

    公开(公告)日：2024-07-18

    申请号：US18434568

    申请日：2024-02-06

    Applicant: SLT Technologies, Inc.

    Inventor： Mark P. D'EVELYN ,  Paul M. VON DOLLEN ,  Lisa M. GAY ,  Douglas W. POCIUS ,  Jonathan D. COOK

    IPC: C30B7/10 ,  C30B29/40

    CPC classification number: C30B7/105 ,  C30B29/403

    Abstract: A method for growth of group Ill metal nitride crystals includes providing one or more transfer vessels, a source vessel containing a condensable mineralizer composition, and a receiving vessel, chilling a metallic surface within the one or more transfer vessels, transferring a quantity of the condensable mineralizer composition to the one or more transfer vessels via a vapor phase and causing condensation of the condensable mineralizer composition within the one or more transfer vessels, measuring the quantity of the condensable mineralizer composition within the at least one transfer vessel, transferring at least a portion of the condensable mineralizer composition to the receiving vessel, and forming at least a portion of a group Ill metal nitride boule by an ammonothermal crystal growth process.

    DIRECT HEATING AND TEMPERATURE CONTROL SYSTEM FOR CRYSTAL GROWTH
    20.
    发明公开
    DIRECT HEATING AND TEMPERATURE CONTROL SYSTEM FOR CRYSTAL GROWTH 审中-公开

    公开(公告)号：US20240158948A1

    公开(公告)日：2024-05-16

    申请号：US18388479

    申请日：2023-11-09

    Applicant: SLT Technologies, Inc. ,  Kyocera Corporation

    Inventor： Paul M. VON DOLLEN ,  Koji MIYAMOTO

    IPC: C30B7/10

    CPC classification number: C30B7/10

    Abstract: Embodiments of the disclosure include a temperature control assembly for performing a crystal growth process. The temperature control assembly will include one or more temperature distribution units (TDUs) coupled to an end cap of a capsule. Each of the one or more TDUs comprise: an interior component comprising a major surface; a heating element disposed over the major surface of the interior component; a via tube comprising a central opening that is configured to accommodate lead wires, wherein the lead wires are configured to electrically connect the heating element to a power supply which is disposed on a side of the end cap that is opposite to the side on which the via tube is disposed; and a sheath layer covering the interior component, the heating element, and the via tube, wherein the sheath layer is hermetically sealed to the end cap and is configured to isolate the interior component, the heating element, and the via tube from an external environment in which the one or more TDUs are disposed during processing.

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