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    • 1. 发明授权
    • Semiconductor device having a hetero-junction bipolar transistor and manufacturing method thereof
    • 具有异质结双极晶体管的半导体器件及其制造方法
    • US07989845B2
    • 2011-08-02
    • US12126395
    • 2008-05-23
    • Keiichi MurayamaAkiyoshi TamuraHirotaka MiyamotoKenichi Miyajima
    • Keiichi MurayamaAkiyoshi TamuraHirotaka MiyamotoKenichi Miyajima
    • H01L31/0328
    • H01L27/0605H01L21/8249H01L21/8252H01L27/0623
    • The object of the present invention is to provide a semiconductor device and the manufacturing method thereof which are capable of preventing decrease in the collector breakdown voltage and reducing the collector resistance. The semiconductor device according to the present invention includes: a HBT formed on a first region of a semiconductor substrate; and an HFET formed on a second region of the semiconductor substrate, wherein the HBT includes: an emitter layer of a first conductivity; a base layer of a second conductivity that has a band gap smaller than that of the emitter layer; a collector layer of the first conductivity or a non-doped collector layer; and a sub-collector layer of the first conductivity which are formed sequentially on the first region, and the HFET includes an electron donor layer including a part of the emitter layer, and a channel layer formed under the electron donor layer.
    • 本发明的目的是提供一种能够防止集电极击穿电压降低并且集电极电阻降低的半导体器件及其制造方法。 根据本发明的半导体器件包括:形成在半导体衬底的第一区域上的HBT; 以及形成在所述半导体衬底的第二区域上的HFET,其中所述HBT包括:具有第一导电性的发射极层; 具有比发射极层的带隙小的带隙的第二导电性的基底层; 第一电导率的集电极层或非掺杂集电极层; 以及在第一区域上依次形成的第一导电性的副集电极层,并且HFET包括包含发射极层的一部分的电子供体层和形成在电子供体层下面的沟道层。
    • 2. 发明申请
    • Semiconductor device and method for manufacturing the same
    • 半导体装置及其制造方法
    • US20060237753A1
    • 2006-10-26
    • US11388545
    • 2006-03-24
    • Yoshiharu AndaAkiyoshi TamuraMitsuru Nishitsuji
    • Yoshiharu AndaAkiyoshi TamuraMitsuru Nishitsuji
    • H01L31/112
    • H01L29/7784H01L21/28575H01L21/28587H01L29/66462
    • A field effect transistor according to the present invention includes a channel layer formed above a semi-insulating substrate, a Schottky layer formed above the channel layer, a gate electrode formed on the Schottky layer, Ohmic contact layers that are located above the Schottky layer with the gate electrode interposed therebetween and formed of InGaAs, and a source electrode and a drain electrode that are formed on the Ohmic contact layers. The source electrode, the drain electrode and the gate electrode have a layered structure in which their corresponding layers are formed of the same material, a lowermost layer is a WSi layer and a layer containing Al is provided above the lowermost layer. A field effect transistor that has an electrode resistance equivalent to a conventional level and can reduce a cost of manufacturing a field effect transistor and a method for manufacturing the same are provided.
    • 根据本发明的场效应晶体管包括形成在半绝缘衬底上的沟道层,形成在沟道层上方的肖特基层,形成在肖特基层上的栅电极,位于肖特基层上方的欧姆接触层, 介于其间并由InGaAs形成的栅电极以及形成在欧姆接触层上的源电极和漏电极。 源电极,漏电极和栅电极具有层叠结构,其相应的层由相同的材料形成,最下层是WSi层,并且在最下层上设置含有Al的层。 提供具有等同于常规水平的电极电阻并且可以降低制造场效应晶体管的成本的场效应晶体管及其制造方法。
    • 8. 发明申请
    • SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF
    • 半导体器件及其制造方法
    • US20090230431A1
    • 2009-09-17
    • US12400376
    • 2009-03-09
    • Keiichi MURAYAMAAkiyoshi TAMURAHirotaka MIYAMOTOKenichi MIYAJIMA
    • Keiichi MURAYAMAAkiyoshi TAMURAHirotaka MIYAMOTOKenichi MIYAJIMA
    • H01L27/06H01L21/331
    • H01L27/0623H01L21/8248H01L27/0605H01L29/7371H01L29/802
    • The present invention has as an objective to provide: a semiconductor device to satisfy both of the trade-off characteristic advantages of the HBT; and the HFET and a manufacturing method thereof. The semiconductor device in the present invention is an HBT and HFET integrated circuit. The HBT includes a sub-collector layer, a GaAs collector layer, a GaAs base layer, and an InGaP emitter layer which are sequentially stacked. The sub-collector layer includes a GaAs external sub-collector region, and a GaAs internal sub-collector region disposed on the GaAs external sub-collector region. A mesa-shaped collector part and a collector electrode are separately formed on the GaAs external sub-collector region. The HFET includes a GaAs cap layer, a source electrode, and a drain electrode, the GaAs cap layer including portion of the GaAs external sub-collector region, and the source electrode and the drain electrode being formed on the GaAs cap layer.
    • 本发明的目的是提供一种半导体装置,以满足HBT的两个折衷特征优点; 和HFET及其制造方法。 本发明的半导体器件是HBT和HFET集成电路。 HBT包括依次层叠的副集电极层,GaAs集电极层,GaAs基极层和InGaP发射极层。 子集电极层包括GaAs外部副集电极区域和设置在GaAs外部子集电极区域上的GaAs内部子集电极区域。 在GaAs外部副集电极区域上分别形成台状集电体部和集电极。 HFET包括GaAs覆盖层,源电极和漏电极,GaAs覆盖层包括GaAs外部副集电极区域的一部分,源电极和漏电极形成在GaAs覆盖层上。
    • 9. 发明授权
    • Semiconductor device and manufacturing method of the same
    • 半导体器件及其制造方法相同
    • US07495268B2
    • 2009-02-24
    • US11757533
    • 2007-06-04
    • Yoshiaki KatoYoshiharu AndaAkiyoshi Tamura
    • Yoshiaki KatoYoshiharu AndaAkiyoshi Tamura
    • H01L29/812
    • H01L29/8128H01L29/42316H01L29/66863H01L29/778
    • A semiconductor device according to the present invention includes: a semiconductor substrate; a channel layer formed on the semiconductor substrate; a donor layer formed on the channel layer; a first Schottky layer formed on the donor layer; a second Schottky layer formed on the first Schottky layer; a first gate electrode formed on the first Schottky layer to form a Schottky barrier junction with the first Schottky layer; a first source electrode and a first drain electrode formed so as to sandwich the first gate electrode and electrically connected to the channel layer; a second gate electrode formed on the second Schottky layer and made of a material different from the first gate electrode to form a Schottky barrier junction with the second Schottky layer; and a second source electrode and a second drain electrode formed so as to sandwich the second gate electrode and electrically connected to the channel layer.
    • 根据本发明的半导体器件包括:半导体衬底; 形成在所述半导体衬底上的沟道层; 在沟道层上形成的施主层; 形成在供体层上的第一肖特基层; 形成在第一肖特基层上的第二肖特基层; 形成在所述第一肖特基层上以与所述第一肖特基层形成肖特基势垒结的第一栅电极; 第一源电极和第一漏电极,其形成为夹着所述第一栅电极并电连接到所述沟道层; 第二栅电极,形成在所述第二肖特基层上,并且由与所述第一栅电极不同的材料制成,以与所述第二肖特基层形成肖特基势垒结; 以及第二源电极和第二漏电极,其形成为夹着所述第二栅极并电连接到所述沟道层。