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    • 2. 发明公开
    • A semiconductor component for transient voltage limiting
    • Halbleiterbauelement zum Begrenzen von transienten Spannungen
    • EP1209746A2
    • 2002-05-29
    • EP02002940.1
    • 1992-06-11
    • POWER INNOVATIONS LIMITED
    • The designation of the inventor has not yet been filed
    • H01L27/08H01L29/74H01L29/87
    • H01L29/747H01L27/0814H01L27/0817H01L29/7416H01L29/87
    • A semiconductor component (4) is provided which is suitable for limiting transient voltages on the supply lines of a system having at least three supply lines, one of the supply lines (252) being a current sink. The semiconductor component comprises at least three input means (251,252,253) for connection to respective ones of the supply lines, and a respective multi-junction diode (200,210,220) for each input means (251,252,253) having a threshold voltage at which it changes from a high-impedance state to a low-impedance state. Each multi-junction diode (200,210,220) is connected in the same sense between a respective one of said input means (251,252,253) and a common terminal (250), and is paired with a respective further diode connected in shunt with it and in the opposite sense to it. One pair (210) of the diodes, being said pair connected to said current sink, has current capacities substantially equal to the combined current capacities of the other pairs of diodes (200,220) and each of the diodes is a diode having a single PN junction. A doped region (202,212,222) of the semiconductor body is common to all the diode pairs.
    • 提供了一种半导体组件(4),其适于限制具有至少三条电源线的系统的电源线上的瞬态电压,其中一条电​​源线(252)是电流吸收器。 半导体部件包括至少三个用于连接到相应供电线的输入装置(251,252,253),以及用于每个输入装置(251,252,253)的相应的多结二极管(200,210,220),其具有阈值电压,在该阈值电压处, 阻抗状态变为低阻态。 每个多结二极管(200,210,220)以相同的意义被连接在所述输入装置(251,252,253)中的相应一个和公共端子(250)之间,并且与连接成分流的相应的另外的二极管配对,并且在相反的 感觉到它 所述二极管的一对(210),连接到所述电流吸收器的所述对具有基本上等于其他二极管对(200,220)的组合电流容量的电流容量,并且每个二极管是具有单个PN结的二极管 。 半导体主体的掺杂区域(202,212,222)对于所有二极管对都是共同的。