Diode chip
    1.
    发明授权

    公开(公告)号:US12113064B2

    公开(公告)日:2024-10-08

    申请号:US17018486

    申请日:2020-09-11

    申请人: ROHM CO., LTD.

    摘要: The present disclosure provides a diode chip capable of attaining excellent electrical characteristics.
    The present disclosure provides a diode chip (1), including: a semiconductor chip (10) having a first main surface (11); a first pin junction portion (31) formed on a surface of the first main surface (11) with a first polarity direction; a first diode pair (37) (rectifier pair) including a first pn junction portion (35) separated from the first pin junction portion (31) and formed in the semiconductor chip (10) with the first polarity direction and a first reversed pin junction portion (38) connected to the first pn junction portion (35) in reversed direction and formed on the first main surface (11) with a second polarity direction; and a first junction separation trench (46) formed on the first main surface (11) in a manner of separating the first pin junction portion (31) and the first diode pair (37).

    Semiconductor Device
    5.
    发明公开

    公开(公告)号:US20230420442A1

    公开(公告)日:2023-12-28

    申请号:US18244524

    申请日:2023-09-11

    摘要: A semiconductor device includes “n” pairs of pn-junction structures, wherein the i-th pair includes two pn-junction structures of the i-th type, wherein the two pn-junction structures of the i-th type are anti-serially connected, wherein the pn-junction structure of the i-th type has an i-th junction grading coefficient mi. A first pair of the n pairs of pn-junction structures has a first junction grading coefficient m1 and a second pair of the n pairs of pn-junction structures has a second junction grading coefficient m2. The junction grading coefficients m1, m2 are adjusted to result in generation of a spurious third harmonic signal of the semiconductor device with a signal power level, which is at least 10 dB lower than a reference signal power level of the spurious third harmonic signal obtained for a reference case in which the first and second junction grading coefficients m1, m2 are 0.25.