Semiconductor encapsulant strength enhancer

    公开(公告)号:US12218018B2

    公开(公告)日:2025-02-04

    申请号:US17726045

    申请日:2022-04-21

    Abstract: A semiconductor module includes a power electronics carrier including a structured metallization layer disposed on an electrically insulating substrate, a power semiconductor die mounted on the power electronics carrier, a housing that surrounds an interior volume over the power electronics carrier, a reinforcing structure contained within the interior volume and including a textured surface that is accessible by fluid, a volume of curable encapsulant disposed within the interior volume and encapsulating the power semiconductor die, wherein the reinforcing structure is embedded within the volume of curable encapsulant such that the textured surface adheres to the encapsulant, and wherein the reinforcing structure has a tensile strength that is greater than a tensile strength of the curable encapsulant.

    METHODS FOR FORMING A POWER SEMICONDUCTOR MODULE ARRANGEMENT

    公开(公告)号:US20240420968A1

    公开(公告)日:2024-12-19

    申请号:US18738124

    申请日:2024-06-10

    Abstract: A method for forming a power semiconductor module arrangement includes: arranging a housing on a substrate, the housing having sidewalls and being arranged to directly adjoin the substrate such that the substrate forms a ground surface of the housing; filling a liquid, viscous or semi-liquid UV-curable potting material into the housing so as to cover the substrate with the potting material; irradiating a first portion of the potting material in areas of the potting material near an interface between the substrate and the sidewalls so as to seal any gaps between the substrate and the sidewalls; and irradiating a second portion of the potting material farther away from the interface between the substrate and the sidewalls than the first portion of the potting material to form an encapsulant. Irradiation of the first and second portions of the potting material takes place at different times and/or via different radiation sources.

    Semiconductor Module with Liquid Dielectric Encapsulant

    公开(公告)号:US20230360989A1

    公开(公告)日:2023-11-09

    申请号:US17737486

    申请日:2022-05-05

    Abstract: A semiconductor module includes a power electronics carrier including a metallization layer disposed on an electrically insulating substrate, a power semiconductor die mounted on the power electronics carrier, a housing that surrounds an interior volume over the power electronics carrier, a volume of electrically insulating encapsulant that fills the interior volume and encapsulates the power semiconductor die, and a pressure compensation element disposed on or within the electrically insulating encapsulant, wherein the electrically insulating encapsulant is a liquid, wherein the semiconductor module forms an impermeable seal that contains the volume of electrically insulating encapsulant, and wherein the pressure compensation element is configured to maintain the electrically insulating encapsulant at a substantially constant pressure during thermal expansion and thermal contraction of the electrically insulating encapsulant.

    Semiconductor Encapsulant Strength Enhancer
    7.
    发明公开

    公开(公告)号:US20230343661A1

    公开(公告)日:2023-10-26

    申请号:US17726045

    申请日:2022-04-21

    CPC classification number: H01L23/26 H01L21/56 H01L23/296 H01L23/3121

    Abstract: A semiconductor module includes a power electronics carrier including a structured metallization layer disposed on an electrically insulating substrate, a power semiconductor die mounted on the power electronics carrier, a housing that surrounds an interior volume over the power electronics carrier, a reinforcing structure contained within the interior volume and including a textured surface that is accessible by fluid, a volume of curable encapsulant disposed within the interior volume and encapsulating the power semiconductor die, wherein the reinforcing structure is embedded within the volume of curable encapsulant such that the textured surface adheres to the encapsulant, and wherein the reinforcing structure has a tensile strength that is greater than a tensile strength of the curable encapsulant.

    Semiconductor substrate
    8.
    发明授权

    公开(公告)号:US11211307B2

    公开(公告)日:2021-12-28

    申请号:US16671541

    申请日:2019-11-01

    Abstract: A semiconductor substrate includes a dielectric insulation layer and a first metallization layer attached to the dielectric insulation layer. The dielectric insulation layer includes a first material having a thermal conductivity of between 25 and 180 W/mK, and an insulation strength of between 15 and 50 kV/mm, and an electrically conducting or semiconducting second material evenly distributed within the first material.

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