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    • 8. 发明授权
    • Bipolar transistor and manufacturing method thereof
    • 双极晶体管及其制造方法
    • US06521974B1
    • 2003-02-18
    • US09689800
    • 2000-10-13
    • Katsuya OdaEiji OhueMasao KondoKatsuyoshi WashioMasamichi TanabeHiromi Shimamoto
    • Katsuya OdaEiji OhueMasao KondoKatsuyoshi WashioMasamichi TanabeHiromi Shimamoto
    • H01L2970
    • H01L29/66287H01L29/66242H01L29/732H01L29/7378
    • A bipolar transistor according to the invention is provided with structure that an intrinsic base made of single crystal Si—Ge and a base leading-out electrode are connected via a link base made of polycrystal Si—Ge by doping at high concentration, further, a part immediately under the intrinsic base has the same conductive type as that of a collector and in a peripheral part, a single crystal Si—Ge layer having the same conductive type as that of a base is provided between the intrinsic base and a collector layer. Hereby, the reduction of the resistance of the link base between the intrinsic base and the base leading-out electrode and the reduction of capacitance between the collector and the base are simultaneously realized, and a self-aligned bipolar transistor wherein capacitance between an emitter and the base and capacitance between the collector and the base are respectively small, power consumption is small and high speed operation is enabled is acquired.
    • 根据本发明的双极晶体管具有以下结构:由单晶Si-Ge构成的本征基极和基极引出电极通过高浓度掺杂的由多晶Si-Ge制成的连接基底连接,此外, 在本征基底之下的部分具有与集电体相同的导电类型,并且在外围部分中,在本征基极和集电极层之间设置具有与基底相同的导电类型的单晶Si-Ge层。 因此,同时实现本征基极与基极引出电极之间的基极的电阻的降低和集电极与基极之间的电容的减小,以及自对准双极晶体管,其中发射极和 集电极和基极之间的基极和电容分别小,功耗小,获得高速运行。
    • 9. 发明授权
    • Bipolar transistor and manufacting method thereof
    • 双极晶体管及其制造方法
    • US06482710B2
    • 2002-11-19
    • US09811559
    • 2001-03-20
    • Katsuya OdaEiji OhueMasao KondoKatsuyoshi WashioMasamichi TanabeHiromi Shimamoto
    • Katsuya OdaEiji OhueMasao KondoKatsuyoshi WashioMasamichi TanabeHiromi Shimamoto
    • H01L21331
    • H01L29/66287H01L29/66242H01L29/732H01L29/7378
    • A bipolar transistor according to the invention is provided with structure that an intrinsic base made of single crystal Si—Ge and a base leading-out electrode are connected via a link base made of polycrystal Si—Ge by doping at high concentration, further, a part immediately under the intrinsic base has the same conductive type as that of a collector and in a peripheral part, a single crystal Si—Ge layer having the same conductive type as that of a base is provided between the intrinsic base and a collector layer. Hereby, the reduction of the resistance of the link base between the intrinsic base and the base leading-out electrode and the reduction of capacitance between the collector and the base are simultaneously realized, and a self-aligned bipolar transistor wherein capacitance between an emitter and the base and capacitance between the collector and the base are respectively small, power consumption is small and high speed operation is enabled is acquired.
    • 根据本发明的双极晶体管具有以下结构:由单晶Si-Ge构成的本征基极和基极引出电极通过高浓度掺杂的由多晶Si-Ge制成的连接基底连接,此外, 在本征基底之下的部分具有与集电体相同的导电类型,并且在外围部分中,在本征基极和集电极层之间设置具有与基底相同的导电类型的单晶Si-Ge层。 因此,同时实现本征基极与基极引出电极之间的基极的电阻的降低和集电极与基极之间的电容的减小,以及自对准双极晶体管,其中发射极和 集电极和基极之间的基极和电容分别小,功耗小,获得高速运行。
    • 10. 发明授权
    • Radio frequency power amplifier and communication system
    • 射频功率放大器和通信系统
    • US07098740B2
    • 2006-08-29
    • US10688976
    • 2003-10-21
    • Masao KondoToru MasudaKatsuyoshi Washio
    • Masao KondoToru MasudaKatsuyoshi Washio
    • H03F3/68
    • H03F3/211H03F1/302H03F2200/372H03F2203/21178
    • There is provided not only a radio frequency power amplifier using an SiGe HBT subject to a little amplification distortion, but also a communication system using the same. A conventional radio frequency power amplifier provides base bias paths of transistors Q1 through QN (SiGe HBT) with bias resistors R11 through R1N having resistance values three to five times higher than those of a ballast resistor attached to each transistor's base. A coil LB is provided in parallel with the bias resistor as a means for compensating a voltage drop due to direct current component IDC flowing through the bias resistor. Addition of the bias resistor suppresses non-linearity of low-frequency variations in an output current. Addition of the coil compensates for voltage drop. Accordingly, the maximum linear output power can be improved. As a result, it is possible to provide the power amplifier subject to a little amplification distortion within a wide output range.
    • 不仅提供使用SiGe HBT的射频功率放大器,而且具有很小的放大失真,而且还提供了使用它的通信系统。 传统的射频功率放大器提供具有偏置电阻器R11至R11的晶体管Q 1至Q N(SiGe HBT)的基极偏置路径, SUB> 1N 的电阻值是连接到每个晶体管基极的镇流电阻的三到五倍。 作为用于补偿流过偏置电阻器的直流分量I DC的电压降的装置,设置有与偏压电阻并联的线圈L B B。 增加偏置电阻抑制输出电流中低频变化的非线性。 线圈的添加补偿电压降。 因此,可以提高最大线性输出功率。 结果,可以在宽的输出范围内提供具有小的放大失真的功率放大器。