Surge absorption device
    3.
    发明授权
    Surge absorption device 失效
    浪涌吸收装置

    公开(公告)号:US5083185A

    公开(公告)日:1992-01-21

    申请号:US488457

    申请日:1990-02-26

    IPC分类号: H01L27/02 H01L29/87

    CPC分类号: H01L29/87 H01L27/0248

    摘要: A surge absorption device includes fundamentally a first semiconductor region, a second semiconductor region forming a pn junction between itself and the first region, a third region determining the effective thickness of the second region, and a fourth region provided in contact with the first region and forming an injection junction for causing first minority carriers of a kind the same as that of minority carriers in the first region to be injected into the first region. When a depletion layer formed by application of reverse bias across the pn junction reaches the third region, a punch-through region is formed in the second region. In this state, when minority carriers are injected from the fourth region into the first region, the minority carriers are absorbed by the second region to constitute the device current.

    摘要翻译: 浪涌吸收装置基本上包括第一半导体区域,在其自身与第一区域之间形成pn结的第二半导体区域,确定第二区域的有效厚度的第三区域和与第一区域接触设置的第四区域,以及 形成注入结,以使得与第一区域中的少数载流子相同的第一少数载流子注入第一区域。 当通过在pn结上施加反向偏压形成的耗尽层到达第三区域时,在第二区域中形成穿通区域。 在这种状态下,当少数载流子从第四区域注入第一区域时,少数载流子被第二区域吸收以构成器件电流。

    Anti-overvoltage protector
    4.
    发明授权
    Anti-overvoltage protector 失效
    防过电压保护器

    公开(公告)号:US4628399A

    公开(公告)日:1986-12-09

    申请号:US716879

    申请日:1985-03-27

    IPC分类号: H01T2/02 H01T4/12 H02H9/04

    CPC分类号: H01T4/12 H01T2/02

    摘要: A pair of main electrodes are hermetically mounted, by fusion of a low melting point metal, onto both end openings of an insulative cylindrical member, respectively. Main electric discharge surfaces of the electrodes oppose each other in said cylindrical member with a gap interposed therebetween. A recessed portion is provided in the main electric discharge surface of one of the pair of main electrodes. A pair of trigger electrodes are conductively connected to the pair of main electrodes, and oppose each other in the recessed portion to thereby form a trigger electric discharge gap therebetween. The pair of main electrodes are formed of electrically conductive material having a thermal coefficient of expansion greater than that of the insulative cylindrical member. The dimension of the trigger electric discharge gap is given as the dimension of the gap between the trigger electrodes which is produced due to the difference in the thermal coefficient of expansion between the pair of main electrodes and an insulative cylindrical member when the trigger electrodes are caused to contact each other by zeroing the gap therebetween and, in this state, the pair of main electrodes are hermetically mounted, by fusion of the low melting point metal, onto both end openings, respectively, of the insulative cylindrical member and, thereafter, the resultant unit is cooled down to room temperature.

    摘要翻译: 一对主电极通过熔融低熔点金属气密地安装在绝缘筒形构件的两端开口上。 电极的主放电表面在所述圆柱形构件中彼此间隔开间隔开。 在一对主电极之一的主放电表面设置有凹部。 一对触发电极与一对主电极导电连接,并且在凹部中彼此相对,从而在它们之间形成触发放电间隙。 一对主电极由导热材料形成,其热膨胀系数大于绝缘筒体的热膨胀系数。 触发放电间隙的尺寸作为触发电极之间的间隙的尺寸,由触发电极引起的一对主电极之间的热膨胀系数的差异和绝缘筒体 通过使它们之间的间隙调零而彼此接触,并且在该状态下,一对主电极通过熔融低熔点金属分别安装到绝缘筒形构件的两个端部开口上,之后, 得到的单元冷却至室温。

    Overvoltage protecting element
    5.
    发明授权
    Overvoltage protecting element 失效
    过电压保护元件

    公开(公告)号:US4410831A

    公开(公告)日:1983-10-18

    申请号:US333613

    申请日:1981-12-22

    CPC分类号: H01J17/40 H01T1/20 H01T4/12

    摘要: An overvoltage protecting element of the invention has a pair of main electrodes, the discharging surfaces of which oppose each other with a gap therebetween in a cylindrical body of an insulator, and a conductive member which is formed on the inner wall surface of the cylindrical body to oppose the main electrodes with a gap therebetween, and a plurality of extended parts of which extending in the circumferential direction of the cylindrical body being connected in the axial direction of the cylindrical body. The main electrodes and the conductive member are electrically connected to each other by capacitive coupling.

    摘要翻译: 本发明的过电压保护元件具有一对主电极,其排出表面在绝缘体的圆筒体中彼此相对且间隔开,并且形成在圆筒体的内壁表面上的导电构件 以与主体电极相对的方式与主体电极相对,并且沿筒体的圆周方向延伸的多个延伸部在圆筒体的轴向连接。 主电极和导电构件通过电容耦合彼此电连接。