ELECTRODE CONNECTION STRUCTURE, LEAD FRAME, AND METHOD FOR FORMING ELECTRODE CONNECTION STRUCTURE

    公开(公告)号:US20190103341A1

    公开(公告)日:2019-04-04

    申请号:US16083389

    申请日:2017-03-07

    摘要: [Problem] To provide an electrode connection structure and the like in which a plurality of elongated leads are arranged in parallel and a longitudinal side surface of each lead is connected to an electrode by plating treatment with high quality.[Solution] An electrode connection structure in which a semiconductor chip 12 electrode and/or a substrate electrode is connected to a plurality of elongated leads 11 of a lead frame 10 by plating. The plurality of elongated leads 11 of the lead frame 10 are arranged in parallel, and a longitudinal side surface of each lead 11 is connected to the semiconductor chip 12 electrode and/or the substrate electrode by plating. At a connection portion of a first connection surface 13 of the semiconductor chip 12 electrode and/or the substrate electrode, the first connection surface 13 being connected to the leads 11, and a second connection surface 14 in the longitudinal side surface of each lead 11, the second connection surface 14 being connected to the first connection surface 13, a distance between the first connection surface 13 and the second connection surface 14 continuously increases from an edge portion 15 of the second connection surface 14, the edge portion 15 being in contact with the first connection surface 13, toward an outer portion 16 of the second connection surface 14.

    Power semiconductor module device

    公开(公告)号:US11152286B2

    公开(公告)日:2021-10-19

    申请号:US16254049

    申请日:2019-01-22

    申请人: WASEDA UNIVERSITY

    发明人: Kohei Tatsumi

    摘要: A power semiconductor module device includes: a plurality of semiconductor elements that are arranged at intervals and flush with each other on a plane; an insulating support that fixes the semiconductor elements; a first thick-film plating layer that is formed as a first-surface-side electrode that electrically connects the semiconductor elements to each other on at least one surface of a front surface side and a rear surface side. The first thick-film plating layer supports the semiconductor elements from at least one of an upper direction and a lower direction.

    SEMICONDUCTOR ELEMENT BONDING STRUCTURE, METHOD FOR PRODUCING SEMICONDUCTOR ELEMENT BONDING STRUCTURE, AND ELECTRICALLY CONDUCTIVE BONDING AGENT

    公开(公告)号:US20210225794A1

    公开(公告)日:2021-07-22

    申请号:US17187452

    申请日:2021-02-26

    申请人: WASEDA UNIVERSITY

    IPC分类号: H01L23/00

    摘要: A semiconductor element bonding structure capable of strongly bonding a semiconductor element and an object to be bonded and relaxing thermal stress caused by a difference in thermal expansion, by interposing metal particles and Ni between the semiconductor element and the object to be bonded, the metal particles having a lower hardness than Ni and having a micro-sized particle diameter. A plurality of metal particles 5 (aluminum (Al), for example) having a lower hardness than nickel (Ni) and having a micro-sized particle diameter are interposed between a semiconductor chip 3 and a substrate 2 to be bonded to the semiconductor chip 3, and the metal particles 5 are fixedly bonded by the nickel (Ni). Optionally, aluminum (Al) or an aluminum alloy (Al alloy) is used as the metal particles 5, and aluminum (Al) or an aluminum alloy (Al alloy) is used on the surface of the semiconductor chip 3 and/or the surface of the substrate 2.

    Electrode connection structure, lead frame, and method for forming electrode connection structure

    公开(公告)号:US10903146B2

    公开(公告)日:2021-01-26

    申请号:US16083389

    申请日:2017-03-07

    摘要: [Problem] To provide an electrode connection structure and the like in which a plurality of elongated leads are arranged in parallel and a longitudinal side surface of each lead is connected to an electrode by plating treatment with high quality.
    [Solution] An electrode connection structure in which a semiconductor chip 12 electrode and/or a substrate electrode is connected to a plurality of elongated leads 11 of a lead frame 10 by plating. The plurality of elongated leads 11 of the lead frame 10 are arranged in parallel, and a longitudinal side surface of each lead 11 is connected to the semiconductor chip 12 electrode and/or the substrate electrode by plating. At a connection portion of a first connection surface 13 of the semiconductor chip 12 electrode and/or the substrate electrode, the first connection surface 13 being connected to the leads 11, and a second connection surface 14 in the longitudinal side surface of each lead 11, the second connection surface 14 being connected to the first connection surface 13, a distance between the first connection surface 13 and the second connection surface 14 continuously increases from an edge portion 15 of the second connection surface 14, the edge portion 15 being in contact with the first connection surface 13, toward an outer portion 16 of the second connection surface 14.