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    • 13. 发明公开
    • Fast turn-off power semiconductor devices
    • Leistungshalbleiteranordnungen mit schnellem Abschalten
    • EP1047135A2
    • 2000-10-25
    • EP00401111.0
    • 2000-04-20
    • Intersil Corporation
    • Hao, Jifa
    • H01L29/86H01L29/739H01L29/16
    • H01L29/04H01L29/861H01L29/868
    • A semiconductor switch is provided with fast turn-off characteristics by the mechanism of rapid recombination of minority carriers within a charge injecting region of the device. The region itself, or a portion of each of a plurality of parallelconnected such regions, comprises a body of highly doped polycrystalline silicon comprising tiny mono-crystalline grains of silicon joined at boundaries between the grains. The grain boundaries provide deep level energy traps for the capture and rapid annihilation, by recombination, of minority carriers within the polycrystalline body. An electrode is ohmically contacted with the one or each polycrystalline silicon body for efficient injection of majority carriers into the body.
    • 高掺杂n型掺杂剂(砷或锑)原子的硅层(30)被中度掺杂(31)和轻掺杂(32)层覆盖。 p-发射极区(60)与轻掺杂层形成p-n结(62)。 二氧化硅(36)的电介质层围绕接触p-发射极区的p型重掺杂多晶硅层(64),并且直接覆盖并接触多晶硅层提供附加金属层(66)。
    • 14. 发明公开
    • VORRICHTUNG ZUM BEGRENZEN ELEKTRISCHER WECHSELSTRÖME, INSBESONDERE IM KURZSCHLUSSFALL
    • 设备限制电气FLOWS变化,特别是在短暂回落
    • EP0978159A1
    • 2000-02-09
    • EP98931894.4
    • 1998-04-09
    • SIEMENS AKTIENGESELLSCHAFT
    • MITLEHNER, HeinzSTEPHANI, DietrichBARTSCH, Wolfgang
    • H02H9/00H01L29/86
    • H01L29/1608H01L29/8083H02H9/02
    • The invention relates to a device for limiting electrical alternating currents, comprising a) at least one semiconductor device (H1, H2, H3) which is connected in the current path of the alternating current. Said semiconductor device is configured or can be controlled in such a way that when a forward voltage is applied, a forward current flows through the device. Said forward current increases monotonously with a forward voltage starting from zero voltage to a saturation current with a corresponding saturation voltage. When the forward voltage exceeds the saturation voltage, said forward voltage is limited to a limit current below the saturation current. When a backward voltage is applied, a backward current flows through the semiconductor device. Said backward current increases monotonously with a backward voltage starting from zero voltage to a predetermined backward breakdown voltage. When the predetermined backward breakdown voltage is exceeded, the backward current increases significantly more sharply due to a charge carrier breakdown. The inventive device for limiting electrical alternating currents also comprises b) a circuit breaker which prevents the semi-conductor device (H1, H2, H3) from being driven into the backward breakdown voltage in the half-wave of the alternating current, which is polarised in its backward direction, especially in the event of an overload or a short circuit.
    • 20. 发明公开
    • Composant de protection bidirectionnel
    • Bidirektionales Schutzunterteil。
    • EP0518790A1
    • 1992-12-16
    • EP92420195.7
    • 1992-06-09
    • SGS-THOMSON MICROELECTRONICS S.A.
    • Pezzani, Robert
    • H02H9/04H01L29/86
    • H02H9/04H01L29/87
    • La présente invention concerne un composant de protection bidirectionnel comprenant deux thyristors tête-bêche dont chacun est en anti-parallèle avec une diode, les gâchettes des deux thyristors étant interconnectées. Ce composant peut être réalisé sous forme monolithique et comprendre l'association de deux thyristors verticaux de même orientation et de deux diodes verticales de même orientation, opposée à celle des thyristors. Les régions semiconductrices constituant les thyristors (P3, N2, P1) sont communes à l'exception de leurs régions de cathode (N11, N12), ce composant comprenant trois métallisations : une métallisation de face arrière (M1) reliant les anodes communes des thyristors aux cathodes des diodes, une première métallisation de face avant (A1) reliant la cathode (N11) d'un thyristor à l'anode (P21) d'une diode, et une deuxième métallisation de face avant (A2) reliant la cathode (N12) de l'autre thyristor à l'anode (P22) de l'autre diode.
    • 本发明涉及一种双向保护部件,包括两个与二极管反平行的头 - 尾晶闸管,两个晶闸管的栅极相互连接。 该部件可以以单片形式生产,并且包括具有相同取向的两个垂直晶闸管和具有与可控硅的方向相反的方向的两个垂直二极管的组合。 构成晶闸管(P3,N2,P1)的半导体区域除了它们的阴极区域(N11,N12)之外是常见的,该部分包括三个金属化:将晶闸管的公共阳极连接到 二极管的阴极,将一个晶闸管的阴极(N11)连接到一个二极管的阳极(P21)的第一正面金属化(A1)和连接另一个二极管的阴极(N12)的第二前面金属化(A2) 晶闸管连接到另一个二极管的阳极(P22)。 ... ...... ...