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    • 8. 发明申请
    • ASYMMETRICAL THYRISTOR
    • 不对称晶闸管
    • WO98034282A1
    • 1998-08-06
    • PCT/DE1998/000248
    • 1998-01-28
    • H01L29/74H01L31/111H01L29/36
    • H01L29/7428H01L29/7424H01L29/7432H01L31/1113
    • Both the cut-off voltage and breakover voltage of conventional thyristors are highly temperature-dependent. The corresponding voltage values can vary by as much as 15 % within the temperature range (5 DEG C - 120 DEG C) in which said thyristors function. In the thyristor described in the invention, ignition is forced about by the punch-through effect, which is independent of temperature (expansion of the space charge region assigned to the p base-/n-base transition (10) to the neighbouring n-base-/p-emitter transition (11)). To ensure that the ignition triggered by punch-through starts at the centre of the thyristor, in n+-stop region (7') the concentration of doping material is considerably reduced in the region (18) situated below the gate electrode (14) in relation to the laterally adjacent area of said stop region (7') extending as far as the edge of the wafer. The effect of this comparably low doping in the central area (18) of the stop region (7') is that in said region the space charge region assigned to the pn transition (10) expands as far as the p+-emitter (8) when a high breakover voltage is applied. As a result, the off-state current rises strongly and the central thyristor area reaches the on state.
    • 两个反向电压和常规晶闸管的转折电压表现出明显的热行为,相关的温度范围内(5℃ - 120℃)内的相应的电压值可以高达15%而变化。 在所提出的晶闸管,开销点火是独立的“穿通”的温度的效果被迫((相关联的p基极/正 - 基极结10)空间电荷区的程度一直到相邻的n基极/ p-发射极 结(11))。 到sicherzsutellen通过诱导点火开始在晶闸管的中心“穿通”,在N + -Stoppzone(7“)在的杂质浓度下相对于栅电极的一半(14)位于区域(18)到后来的人的相邻并 向上延伸到晶片边缘区域显著降低了停止区(7“)。 在停止区(7“)的中央区域(18)的相对较弱的掺杂导致有施加高击穿电压到P +发射极(8),反向电流相应ansgeigt强膨胀过程中与pn结(10)空间电荷区相关联 并且在导通状态下的中央晶闸管。
    • 9. 发明申请
    • THYRISTOR WITH IMPROVED PLASMA SPREADING
    • 改进等离子体扩散的THYRISTOR
    • WO2016193078A1
    • 2016-12-08
    • PCT/EP2016/061735
    • 2016-05-25
    • ABB SCHWEIZ AG
    • BELLINI, MarcoVOBECKY, JanCOMMIN, Paul
    • H01L29/08H01L29/74H01L29/06
    • H01L29/102H01L29/0692H01L29/0839H01L29/42308H01L29/74H01L29/7404H01L29/7428H01L29/7432
    • There is provided a thyristor having emitter shorts, wherein in an orthogonal projection onto a plane parallel to a first main side (202), a contact area covered by an electrical contact of a first electrode layer (214) with a first emitter layer (206) and the emitter shorts (228) includes areas in the shape of lanes (250A-250D), in which an area coverage of the emitter shorts (228) is less than the area coverage of emitter shorts (228) in the remaining area of the contact area, wherein the area coverage of the emitter shorts (228) in a specific area is the area covered by the emitter shorts (228) in that specific area relative to the specific area. The thyristor of the invention exhibits a fast turn-on process even without complicated amplifying gate structure.
    • 提供了具有发射极短路的晶闸管,其中在与第一主侧(202)平行的平面上的正交投影中,由第一电极层(214)与第一发射极层(206)的电接触覆盖的接触区域 )和发射极短路(228)包括通道形状的区域(250A-250D),其中发射极短路区域覆盖区域(228)小于发射体短路区域覆盖区域(228) 所述接触区域,其中特定区域中的发射体短路(228)的面积覆盖区是相对于所述特定区域的所述特定区域中由所述发射极短路(228)覆盖的区域。 本发明的晶闸管即使没有复杂的放大栅极结构也表现出快速导通工艺。