SEMICONDUCTOR DEVICE HAVING HOLLOW CAPILLARY STRUCTURE

    公开(公告)号:US20250125221A1

    公开(公告)日:2025-04-17

    申请号:US18658593

    申请日:2024-05-08

    Abstract: A semiconductor device includes: a semiconductor chip including a semiconductor integrated circuit; a heat transfer member covering an upper surface of the semiconductor chip; and a plurality of microstructures on an upper surface of the heat transfer member and configured to generate a capillary force to cause a flow of a coolant, wherein a first capillary channel is provided between adjacent microstructures of the plurality of microstructures, and at least one of the plurality of microstructures may include a hollow microstructure in which a second capillary channel is provided.

    SEMICONDUCTOR DEVICE WITH TWO-PHASE COOLING STRUCTURE

    公开(公告)号:US20240203825A1

    公开(公告)日:2024-06-20

    申请号:US18206472

    申请日:2023-06-06

    Abstract: A semiconductor device includes a semiconductor chip including a semiconductor integrated circuit; a cooling channel including a surface of the semiconductor chip and configured to provide a passage for a coolant to cool the semiconductor chip; and a plurality of flexible capillary patterns on the surface of the semiconductor chip inside the cooling channel and configured to move the coolant by capillary action, wherein each capillary pattern of the plurality of flexible capillary patterns may include a first portion in a length direction of the capillary pattern that contacts and is supported by the surface of the semiconductor chip, and a second portion in the length direction that is spaced apart from and unsupported by the surface of the semiconductor chip, and a curvature of the second portion of each capillary pattern of the plurality of flexible capillary patterns changes according to temperature.

    DIRECTIONAL ACOUSTIC SENSOR
    27.
    发明申请

    公开(公告)号:US20220240005A1

    公开(公告)日:2022-07-28

    申请号:US17717920

    申请日:2022-04-11

    Abstract: A compact directional acoustic sensor having an improved signal-to-noise ratio is disclosed. The disclosed directional acoustic sensor includes a first sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one first output signal having a first polarity based on external energy received from an input direction; a second sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one second output signal having a second polarity, that is different than the first polarity, based on the external energy received from the input direction; and at least one signal processor configured to generate at least one final output signal based on the at least one first output signal and the at least one second output signal.

    SYSTEM AND METHOD FOR MEASURING DISTANCE USING ACOUSTIC SIGNAL

    公开(公告)号:US20220099828A1

    公开(公告)日:2022-03-31

    申请号:US17187097

    申请日:2021-02-26

    Abstract: Provided is a distance measurement system, including: at least one sound source configured to generate an acoustic signal; an acoustic sensor including a plurality of directional acoustic sensors arranged to have directionalities different from one another; and at least one processor configured to: obtain a directionality of the acoustic signal in a particular direction based on at least one of a sum of output signals of the plurality of directional acoustic sensors or a difference between the output signals of the plurality of directional acoustic sensors, the at least one of the sum or the difference being based on applying a weight to at least one of the output signals; and determine a distance between the acoustic sensor and a reflection surface based on a time for the acoustic signal to arrive at the acoustic sensor in the particular direction after being generated and then reflected from the reflection surface.

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