DUAL-SIDE COOLING SEMICONDUCTOR PACKAGES AND RELATED METHODS

    公开(公告)号:US20250069992A1

    公开(公告)日:2025-02-27

    申请号:US18940141

    申请日:2024-11-07

    Inventor: Yong LIU Qing YANG

    Abstract: A dual-side cooling (DSC) semiconductor package includes a first metal-insulator-metal (MIM) substrate having a first insulator layer, first metallic layer, and second metallic layer. A second MIM substrate includes a second insulator layer, third metallic layer, and fourth metallic layer. The third metallic layer includes a first portion having a first contact area and a second portion, electrically isolated from the first portion, having a second contact area. A semiconductor die is coupled with the second metallic layer and is directly coupled with the third metallic layer through one or more solders, sintered layers, electrically conductive tapes, solderable top metal (STM) layers, and/or under bump metal (UBM) layers. The first contact area is electrically coupled with a first electrical contact of the die and the second contact area is electrically coupled with a second electrical contact of the die. The first and fourth metallic layers are exposed through an encapsulant.

    POWER MODULE
    2.
    发明申请

    公开(公告)号:US20220208666A1

    公开(公告)日:2022-06-30

    申请号:US17655216

    申请日:2022-03-17

    Abstract: A power module can include a casing mounted to a baseplate that contains a substrate with circuitry. The circuitry can include pins for coupling signals to/from the circuitry. These pins can extend through a cover portion of the casing so that an electronic substrate, such as a printed circuit board (PCB) can be press-fit onto the pins. When press-fit, the electronic substrate is supported and positioned by support pillars that extend from the base plate to above the cover portion of the casing. If the pins and the support pillars have different coefficients of thermal expansion, damage to connection points between the pins and the circuitry may occur. Here, a power module is disclosed that has thermally matched pins and support pillars so that when the system is thermally cycled over a range of temperatures, the connection points are not damaged by forces induced by thermal expansion.

    SPACER WITH PATTERN LAYOUT FOR DUAL SIDE COOLING POWER MODULE

    公开(公告)号:US20220208635A1

    公开(公告)日:2022-06-30

    申请号:US17136286

    申请日:2020-12-29

    Abstract: A method includes bonding a device die to a direct bonded metal (DBM) substrate, bonding a spacer block to the device die, and at least partially reducing coefficient of thermal expansion (CTE) mismatches between the DBM substrate, the spacer block and the device die. At least partially reducing the CTE mismatches between the DBM substrate, the spacer block and the device die includes at least one of: disposing an arrangement of pillars and grooves in a surface region of the spacer block coupled to the device die, disposing at least one cavity in the spacer block, and disposing a groove in an outer conductive layer of the DBM substrate.

    THERMAL PERFORMANCE IMPROVEMENT AND STRESS REDUCTION IN SEMICONDUCTOR DEVICE MODULES

    公开(公告)号:US20250096159A1

    公开(公告)日:2025-03-20

    申请号:US18970731

    申请日:2024-12-05

    Inventor: Yong LIU Qing YANG

    Abstract: In a general aspect, a method of producing a signal distribution assembly includes forming a first metal layer having a first, planar side and a second, non-planar side opposite the first side. The second side includes a first base portion, a first post extending from the first base portion; and a second post extending from the first base portion. The method also includes molding the first metal layer such that a molding compound is disposed on the second side of the first metal layer with respective upper surfaces of the first and second posts being exposed through the molding compound. The method further includes coupling the first side of the first metal layer to a first surface of a thermally conductive insulator layer and coupling a second metal layer with a second surface of the thermally conductive insulator layer opposite the first surface of the thermally conductive insulator layer.

    PACKAGE WITH MOLDING CAVITY
    8.
    发明申请

    公开(公告)号:US20240371659A1

    公开(公告)日:2024-11-07

    申请号:US18311100

    申请日:2023-05-02

    Abstract: A high-power semiconductor device module is implemented with a cavity in the molding package. The cavity reduces a volume of the molding compound, preventing an accumulation of stress in the module, and associated warpage of the package. Chip assemblies within the module are designed to fit within the cavity, so that semiconductor dies, and sensing devices therein are protected from damage during a sintering process in which the module is mounted to a heat sink. After the sintering process, the cavity can be sealed with a gel material. The molding package described herein can also enhance reliability of the module during operation, ensuring that the product is robust for electric and hybrid electric vehicle applications.

    REDUCING STRESS CRACKS IN SUBSTRATES

    公开(公告)号:US20220173049A1

    公开(公告)日:2022-06-02

    申请号:US17247094

    申请日:2020-11-30

    Abstract: Implementations described herein are related to an improved semiconductor device package for providing an electrical connection between one or more semiconductor die and one or more substrates. The one or more substrates includes a dielectric layer having a first side and a second side opposite the first side, and a first metal layer bonded to the first side of the dielectric layer, the first metal layer having a first portion and a second portion. The semiconductor device package can also include a semiconductor die disposed onto the first metal layer within the first portion of the first metal layer. In some implementations, the one or more conducting substrates includes a direct bonded copper (DBC) substrate, i.e., the metal is copper.

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