Method of manufacturing semiconductor device wherein silicon substrates
are bonded together
    1.
    发明授权
    Method of manufacturing semiconductor device wherein silicon substrates are bonded together 失效
    制造半导体器件的方法,其中硅衬底结合在一起

    公开(公告)号:US4700466A

    公开(公告)日:1987-10-20

    申请号:US825544

    申请日:1986-02-03

    CPC分类号: H01L21/02052 H01L21/187

    摘要: A method of manufacturing a semiconductor device, wherein a semiconductor wafer having a first impurity-doped layer and a second impurity-doped layer having a higher impurity concentration than that of the first impurity-doped layer is formed. A first silicon substrate, having a first impurity-doped layer and a third impurity-doped layer which has a higher impurity concentration than that of the first impurity-doped layer and the same conductivity type as that of the second impurity-doped layer, and whose surface is mirror-polished, is brought into contact with a second silicon substrate which has a higher impurity concentration than that of the first impurity-doped layer and the same conductivity type as that of the second impurity-doped layer, and whose surface is mirror-polished, so that the mirror-polished surfaces thereof are in contact with each other. The contacting substrates are then placed in a clean atmosphere so that virtually no foreign substances are present therebetween, and annealed at a temperature of not less than 200.degree. C. so as to bond them together, thereby forming the second impurity-doped layer consisting of the third impurity doped layer and the second silicon substrate.

    摘要翻译: 一种制造半导体器件的方法,其中形成具有第一杂质掺杂层和杂质浓度高于第一杂质掺杂层的第二杂质掺杂层的半导体晶片。 具有第一杂质掺杂层和第三杂质掺杂层的第一硅衬底,其具有比第一杂质掺杂层高的杂质浓度和与第二杂质掺杂层相同的导电类型,以及 其表面经镜面抛光与第二硅衬底接触,第二硅衬底的杂质浓度高于第一杂质掺杂层的杂质浓度并且具有与第二杂质掺杂层相同的导电类型,并且其表面为 镜面抛光,使得其镜面抛光表面彼此接触。 然后将接触的基材放置在清洁的气氛中,实际上不存在异物,并在不低于200℃的温度下进行退火,以将它们结合在一起,由此形成第二杂质掺杂层,由 第三杂质掺杂层和第二硅衬底。

    Turn-on/off driving technique for insulated gate thyristor
    5.
    发明授权
    Turn-on/off driving technique for insulated gate thyristor 失效
    绝缘栅极晶闸管的开/关驱动技术

    公开(公告)号:US4994696A

    公开(公告)日:1991-02-19

    申请号:US371275

    申请日:1989-06-26

    摘要: A turn-on/off driving method for an insulated gate thyristor which has a first gate electrode insulatively provided above a first base layer and functioning as the gate of MOSFET, and a second gate electrode formed on the second base layer. To execute the turn-off driving operation, a first voltage is applied to the second gate electrode to produce reverse biasing between the second emitter layer and the second base layer, thereby to quench this thyristor. A second voltge which renders the transistor nonconductive is applied the first gate electrode before the application of the first voltage. The turn-on driving operation of the thyristor may be performed by using the first gate electrode.

    Turn-on/off driving technique for insulated gate thyristor
    6.
    发明授权
    Turn-on/off driving technique for insulated gate thyristor 失效
    绝缘栅极晶闸管的开/关驱动技术

    公开(公告)号:US4866315A

    公开(公告)日:1989-09-12

    申请号:US161095

    申请日:1988-02-26

    摘要: A turn-on/off driving technique for an insulated gate thyristor which has a first gate electrode insulatively provided above a first base layer and functioning as a gate of MOSFET, and a second gate electrode formed on the second base layer. To drive the turn-on of the thyristor, a first voltage for rendering the MOSFET conductive is applied to the first gate electrode, while substantially simultaneously a second voltage for producing forward biasing between the second base layer and a second emitter layer is applied to the second gate electrode. To turn-off drive the thyristor, a third voltage for reverse biasing between the second emitter layer and the second base layer to stop the operation of the thyristor is applied to the second gate, while the MOSFET is kept conductive. The thyristor starts turning off in response to the voltage application. At this time, charge carriers exhausted from the second emitter layer are allowed to flow into the first base layer through the channel region of the MOSFET, thereby suppressing the local concentration of the turn-off current in the thyristor.

    Thyristor drive system
    7.
    发明授权
    Thyristor drive system 失效
    晶闸管驱动系统

    公开(公告)号:US4821083A

    公开(公告)日:1989-04-11

    申请号:US101790

    申请日:1987-09-28

    摘要: A gate turn-off thyristor drive system with low power loss when it is in the turn-off mode, is disclosed. A first turn-off pulse of a predetermined amplitude is applied to a first gate electrode. A second turn-off pulse is applied to a second gate electrode. An amplitude of the second turn-off pulse is smaller in absolute value than that of the first turn-off pulse. The fall time of the anode current at the time of turn-off is reduced, and the initial value of the tail current of the anode current is reduced. The power loss as the product of the anode voltage and the anode current is reduced.

    摘要翻译: 公开了一种在关闭模式时具有低功率损耗的栅极截止晶闸管驱动系统。 将预定幅度的第一关断脉冲施加到第一栅电极。 第二截止脉冲被施加到第二栅电极。 第二截止脉冲的幅度的绝对值小于第一截止脉冲的幅度。 在关断时的阳极电流的下降时间减少,阳极电流的尾电流的初始值减小。 作为阳极电压和阳极电流的乘积的功率损耗减小。

    Turn-on/off driving technique for insulated gate thyristor
    10.
    发明授权
    Turn-on/off driving technique for insulated gate thyristor 失效
    绝缘闸门开启/关闭驱动技术

    公开(公告)号:US5144401A

    公开(公告)日:1992-09-01

    申请号:US386763

    申请日:1989-07-31

    IPC分类号: H01L29/744 H01L29/749

    CPC分类号: H01L29/749 H01L29/744

    摘要: A thyristor is disclosed which has a laminated structure of a first emitter layer of n.sup.+ conductivity type, a first base layer of p type, a second base layer of p.sup.- type, a second emitter layer of n type, and a second emitter layer of p.sup.+ type. The first base layer has a first exposed surface portion which is in lateral contact with the first emitter layer, and a second exposed surface portion which is in lateral contact with the second base layer. The second surface portion defines a layer portion of the second base layer which is positioned between the first base layer and the second emitter layer. An anode electrode is connected to said second emitter layer, whereas a cathode electrode is connected to the second base layer and the first emitter layer. A first gate electrode is formed on the first surface portion of the first base layer. A second gate electrode is insulatively disposed above the second surface portion of the first base layer to form a MOSFET together with the first base layer and the second emitter layer. The layer portion of the second base layer serves as a channel region of the MOSFET.

    摘要翻译: 公开了一种晶闸管,其具有n +导电类型的第一发射极层,p型的第一基极层,p型的第二基极层,n型的第二发射极层和n型的第二发射极层 p +型。 第一基层具有与第一发射极层侧向接触的第一暴露表面部分和与第二基底层侧向接触的第二暴露表面部分。 第二表面部分限定位于第一基底层和第二发射体层之间的第二基底层的层部分。 阳极电极连接到所述第二发射极层,而阴极连接到第二基极层和第一发射极层。 第一栅电极形成在第一基层的第一表面部分上。 第二栅电极被绝对地设置在第一基极层的第二表面部分上方,以与第一基极层和第二发射极层一起形成MOSFET。 第二基极层的层部分用作MOSFET的沟道区。