Method for tuning a microwave integrated circuit
    1.
    发明授权
    Method for tuning a microwave integrated circuit 失效
    微波集成电路调谐方法

    公开(公告)号:US4769883A

    公开(公告)日:1988-09-13

    申请号:US472529

    申请日:1983-03-07

    摘要: A method of tuning a microwave integrated circuit by trimming desired film-type circuit patterns included therein by a cold-pressure bonding technique is disclosed. More specifically, intercoupled circuit patterns are formed on a semi-insulating substrate with some circuit patterns having impedance characteristics of a desired nominal value. Each circuit pattern may comprise a plurality of conductive paths of malleable metal. Gaps are provided at appropriately chosen places in the conductive paths of predetermined circuit patterns. Selected ones of the gaps of the conductive paths are bridged to adjust the impedance characteristics of the associated predetermined circuit pattern by wiping with a probe the malleable metal of the conductive path at one end of the gap, across the gap to make contact with the malleable metal of the conductive path at the other end of the gap. The method further includes steps for in-situ testing of the integrated circuit by energizing the microwave integrated circuit to effect operation thereof; testing selected parameters of the energized microwave integrated circuit for determining the operational response thereof; and performing the step of bridging selected gaps of the energized microwave integrated circuit with a probe of insulating material to adjust the impedance characteristics thereof to render a desired measure response therefrom as determined by the testing step.

    摘要翻译: 公开了一种通过利用冷压接技术修整所需的薄膜型电路图案来调谐微波集成电路的方法。 更具体地说,在具有阻抗特性为期望标称值的一些电路图案的半绝缘衬底上形成相互联系的电路图案。 每个电路图案可以包括多个可延展金属的导电路径。 在预定电路图案的导电路径中的适当选择的位置提供间隙。 桥接导电路径的间隙中的选定的间隙以通过用探针擦拭间隙的一端处的导电路径的可延展金属跨越间隙以与可延展的接触来调节相关联的预定电路图案的阻抗特性 导电路径的金属在间隙的另一端。 该方法还包括通过激励微波集成电路来实现集成电路的操作来现场测试集成电路的步骤; 测试通电微波集成电路的选定参数,以确定其运行响应; 以及通过绝缘材料的探针执行桥接所述通电的微波集成电路的选定间隙的步骤,以调整其阻抗特性,以便通过测试步骤确定所需的测量响应。

    Transmit-receive means for phased-array active antenna system using rf
redundancy
    2.
    发明授权
    Transmit-receive means for phased-array active antenna system using rf redundancy 失效
    发射接收装置,用于使用rf冗余的相控阵有源天线系统

    公开(公告)号:US4823136A

    公开(公告)日:1989-04-18

    申请号:US13490

    申请日:1987-02-11

    摘要: An improved phased-array active antenna transmit-receive means utilizing a multiplicity of individual transmit-receive cells positioned in an array format upon a common wafer of semiconductor material. Each transmit-receive cell, comprises a multiplicity of redundant, integrated circuit, electronic devices implanted upon the common semiconductor substrate. The transmit-receive cells utilize novel mitered mechanical switches to permanently interconnect individual electronic devices into either transmit or receive circuits during the fabrication and test of the transmit-receive cells. Radio frequency and direct current input and output vias formed from a novel metal evaportion technique connect the devices upon the surface of the common semiconductor wafer to underlying, insulated direct current distribution circuits and a radio frequency manifold. This array of improved phased-array active antenna transmit-receive means comprised of transmit-receive cells sharing common central processing means, logic control and heat dissipation means results in a significant reduction in the size and weight of the standard phased-array active antenna system. This significant reduction in antenna system size and weight is very important in broad band electronic countermeasure systems or narrow band phased array active antenna radar systems as used in advanced tactical fighters, or space applications.

    摘要翻译: 一种改进的相控阵有源天线发射 - 接收装置,利用位于半导体材料的公共晶片上的阵列格式的多个单独的发射 - 接收单元。 每个发射 - 接收单元包括多个冗余的集成电路,注入到公共半导体衬底上的电子器件。 发射接收蜂窝小区利用新颖的倾斜机械开关,在发射接收小区的制造和测试期间,将各个电子设备永久地互连到发射或接收电路中。 由新型金属蒸发技术形成的射频和直流输入和输出通孔将公共半导体晶片的表面上的器件连接到下面的绝缘直流分配电路和射频歧管。 由共享公共中央处理装置,逻辑控制和散热装置的发射 - 接收单元组成的改进的相控阵有源天线发射 - 接收装置阵列导致标准相控阵有源天线系统的尺寸和重量的显着降低 。 天线系统尺寸和重量的显着降低对于在高级战术战机或空间应用中使用的宽带电子对抗系统或窄带相控阵有源天线雷达系统是非常重要的。

    High attenuation broadband high speed RF shutter and method of making
same
    3.
    发明授权
    High attenuation broadband high speed RF shutter and method of making same 失效
    高衰减宽带高速射频快门及其制作方法

    公开(公告)号:US4922253A

    公开(公告)日:1990-05-01

    申请号:US292983

    申请日:1989-01-03

    IPC分类号: H01H59/00 H01P1/10 H01Q15/00

    摘要: A radio frequency transmitting shutter operable at low power and high speed for use in the protection of a radar or electronic warfare array comprising a multiplicity of individual conductive beam members interconnected by electrostatic switches formed using high yield, common photolithographic methods is disclosed. Further, a photosensitive embodiment of this device which would allow activation of the shutter wherever the light falls upon the shutter during radar protection, is disclosed and claimed.

    摘要翻译: 公开了一种能够以低功率和高速度操作的射频发射快门,用于保护雷达或电子战阵列,其包括通过使用高产率,普通光刻方法形成的静电开关互连的多个单独的导电梁构件。 此外,公开和要求保护该装置的光敏实施例,其将允许在雷达保护期间光落在快门上的任何位置启动快门。

    Mitered mechanical switches
    4.
    发明授权
    Mitered mechanical switches 失效
    倾斜机械开关

    公开(公告)号:US4904831A

    公开(公告)日:1990-02-27

    申请号:US293164

    申请日:1989-01-03

    IPC分类号: G01S7/03 H01Q3/26 H01Q21/00

    摘要: An improved phased-array active antenna transmit-receive means utilizing a multiplicity of individual transmit-receive cells positioned in an array format upon a common wafer of semiconductor material. Each transmit-receiver cell, comprises a multiplicity of redundant, integrated circuit, electronic devices implanted upon the common semiconductor substrate. The transmit-receive cells utilize novel mitered mechanical switches to permanently interconnect individual electronic devices into either transmit or receive circuits during the fabrication and test of the transmit-receive cells. Radio frequency and direct current input and output vias formed from a novel metal evaporation technique connect the devices upon the surface of the common semiconductor wafer to underlying, insulated direct current distribution circuits and a radio frequency manifold. This array of improved phased-array active antenna transmit-receive means comprised of transmit-receive cells sharing common central processing means, logic control and heat dissipation means results in a significant reduction in the size and weight of the standard phased-array active antenna system. This significant reduction in antenna system size and weight is very important in broad band electronic countermeasure systems or narrow band phased array active antenna radar systems as used in advanced tactical fighters, or space applications.

    摘要翻译: 一种改进的相控阵有源天线发射 - 接收装置,利用位于半导体材料的公共晶片上的阵列格式的多个单独的发射 - 接收单元。 每个发射 - 接收器单元包括多个冗余的集成电路,注入到公共半导体衬底上的电子器件。 发射接收蜂窝小区利用新颖的倾斜机械开关,在发射接收小区的制造和测试期间,将各个电子设备永久地互连到发射或接收电路中。 由新型金属蒸发技术形成的射频和直流输入和输出通孔将公共半导体晶片的表面上的器件连接到下面的绝缘直流分配电路和射频歧管。 由共享公共中央处理装置,逻辑控制和散热装置的发射 - 接收单元组成的改进的相控阵有源天线发射 - 接收装置阵列导致标准相控阵有源天线系统的尺寸和重量的显着降低 。 天线系统尺寸和重量的显着降低对于在高级战术战机或空间应用中使用的宽带电子对抗系统或窄带相控阵有源天线雷达系统是非常重要的。

    Two stage etching process for through the substrate contacts
    5.
    发明授权
    Two stage etching process for through the substrate contacts 失效
    两级蚀刻工艺通过衬底接触

    公开(公告)号:US4381341A

    公开(公告)日:1983-04-26

    申请号:US344467

    申请日:1982-02-01

    摘要: Electrical interconnection paths or vias are provided through relatively thick type III/V semiconductive substrates, such as gallium arsenide, to permit through the substrate electrical interconnection of planar transistor devices. The vias are etched in a two-step process which ensures that the via lateral dimensions are less than the transistor contacts with which they are aligned. The first step comprises selectively thinning the thick substrate from the back surface over an area which encompasses the transistor array formed in the front surface of the substrate. The second step is to etch the individual vias through this prior thinned substrate at areas aligned with the transistor contacts.

    摘要翻译: 通过诸如砷化镓的相对厚的类型III / V半导体衬底提供电互连通路或通孔,以允许平面晶体管器件的衬底电互连。 通孔以两步法进行蚀刻,这确保通孔横向尺寸小于它们对准的晶体管触点。 第一步骤包括在包围形成在衬底的前表面中的晶体管阵列的区域上从后表面选择性地稀薄厚衬底。 第二步是在与晶体管触点对准的区域处蚀刻通过该先前减薄的衬底的各个通孔。

    Process for producing vias in semiconductor
    6.
    发明授权
    Process for producing vias in semiconductor 失效
    半导体通孔生产工艺

    公开(公告)号:US4894114A

    公开(公告)日:1990-01-16

    申请号:US292973

    申请日:1989-01-03

    IPC分类号: G01S7/03 H01Q3/26 H01Q21/00

    摘要: An improved phased-array active antenna transmit-receive means utilizing a multiplicity of individual transmit-receive cells positioned in an array format upon a common wafer of semiconductor material. Each transmit-receive cell, comprises a multiplicity of redundant, integrated circuit, electronic devices implanted upon the common semiconductor substrate. The transmit-receive cells utilize novel mitered mechanical switches to permanently interconnect individual electronic devices into either transmit or receive circuits during the fabrication and test of the transmit-receive cells. Radio frequency and direct current input and output vias formed from a novel metal evaporation technique connect the devices upon the surface of the common semiconductor wafer to underlying, insulated direct current distribution circuits and a radio frequency manifold. This array of improved phased-array active antenna transmit-receive means comprised of transmit-receive cells sharing common central processing means, logic control and heat dissipation means results in a significant reduction in the size and weight of the standard phased-array active antenna system. This significant reduction in antenna system size and weight is very important in broad band electronic countermeasure systems or narrow band phased array active antenna radar systems as used in advanced tactical fighters, or space applications.

    摘要翻译: 一种改进的相控阵有源天线发射 - 接收装置,利用位于半导体材料的公共晶片上的阵列格式的多个单独的发射 - 接收单元。 每个发射 - 接收单元包括多个冗余的集成电路,注入到公共半导体衬底上的电子器件。 发射接收蜂窝小区利用新颖的倾斜机械开关,在发射接收小区的制造和测试期间,将各个电子设备永久地互连到发射或接收电路中。 由新型金属蒸发技术形成的射频和直流输入和输出通孔将公共半导体晶片的表面上的器件连接到下面的绝缘直流分配电路和射频歧管。 由共享公共中央处理装置,逻辑控制和散热装置的发射 - 接收单元组成的改进的相控阵有源天线发射 - 接收装置阵列导致标准相控阵有源天线系统的尺寸和重量的显着降低 。 天线系统尺寸和重量的显着降低对于在高级战术战机或空间应用中使用的宽带电子对抗系统或窄带相控阵有源天线雷达系统是非常重要的。

    High peak power microwave generator using light activated switches
    7.
    发明授权
    High peak power microwave generator using light activated switches 失效
    高峰值功率微波发生器采用光启动开关

    公开(公告)号:US4176295A

    公开(公告)日:1979-11-27

    申请号:US915649

    申请日:1978-06-15

    摘要: A high peak power microwave generator is disclosed in which a plurality of transmission lines are connected to an output wave guide at predetermined intervals along the direction of propagation. Each transmission line is periodically charged, and this electromagnetic energy is released into the wave guide upon the actuation of a light activated silicon switch (LASS) diode connected to the transmission line. The LASS diodes are actuated simultaneously by a laser beam which traverses equal optical paths to each switch. The coincident switching of the transmission lines enables the power in each line to be additive in the wave guide, and much higher output pulses can be obtained. Further, the high speed switching capabilities afforded by the LASS diodes means that the resulting high power can be obtained at a much higher frequency.

    摘要翻译: 公开了一种高峰值功率微波发生器,其中多个传输线沿着传播方向以预定间隔连接到输出波导。 每个传输线被周期性地充电,并且当连接到传输线的光激活硅开关(LASS)二极管的致动时,该电磁能被释放到波导中。 LASS二极管通过穿过每个开关相同光路的激光束同时启动。 传输线的重合切换使得每行中的功率在波导中是相加的,并且可以获得更高的输出脉冲。 此外,LASS二极管提供的高速切换功能意味着可以以更高的频率获得所得到的高功率。

    Aluminum gallium nitride based heterojunction bipolar transistor
    8.
    发明授权
    Aluminum gallium nitride based heterojunction bipolar transistor 失效
    铝氮化镓基异质结双极晶体管

    公开(公告)号:US5641975A

    公开(公告)日:1997-06-24

    申请号:US555935

    申请日:1995-11-09

    摘要: A heat tolerant, frequency responsive transistor for use in the microwave region includes a collector region, a base region overlying the collector region, and an emitter region including an AlGaN layer overlying at least part of said base region, forming a heterojunction between said base region and said emitter region. The emitter region may include two layers. The HBT may be mounted on a SiC or sapphire substrate. The HBT may include a buffer layer between the substrate and the collector region.

    摘要翻译: 用于微波区域的耐热频率响应晶体管包括集电极区域,覆盖集电极区域的基极区域和包括覆盖在所述基极区域的至少一部分上的AlGaN层的发射极区域,在所述基极区域之间形成异质结 和所述发射极区域。 发射极区域可以包括两层。 HBT可以安装在SiC或蓝宝石衬底上。 HBT可以包括在衬底和收集器区域之间的缓冲层。

    Application of facet-growth to self-aligned Shottky barrier gate field
effect transistors
    9.
    发明授权
    Application of facet-growth to self-aligned Shottky barrier gate field effect transistors 失效
    小面生长对自对准肖特基势垒栅场效应晶体管的应用

    公开(公告)号:US3943622A

    公开(公告)日:1976-03-16

    申请号:US517284

    申请日:1974-10-22

    摘要: A semiconductor device and particularly a self-aligned Schottky barrier gate field-effect transistor is made by epitaxial growth of facets corresponding to the source and drain regions on a surface of a semiconductor body through spaced apart preferably elongated windows in a masking layer and overgrowing edge portions of the masking layer at the windows to form overgrown portions on the facets. The channel region of the transistor is previously formed in the semiconductor body, preferably by epitaxial growth of a layer on a surface of a semiconductor body having a semi-insulating layer adjoining the surface. After removal of the masking layer, the Schottky barrier gate is self-aligned by deposition of metal on the unshielded portions of the planar surface between the facets.

    摘要翻译: 半导体器件,特别是自对准肖特基势垒栅场效应晶体管是通过在半导体主体的表面上对应于源极和漏极区域的面的外延生长而通过在掩模层中的间隔开的优选细长的窗口和过度生长边缘 在窗口处的掩模层的部分在小平面上形成长满的部分。 晶体管的沟道区预先形成在半导体本体中,优选地通过在邻接表面的半绝缘层的半导体本体的表面上外延生长层。 在去除掩模层之后,肖特基势垒栅极通过在面之间的平坦表面的非屏蔽部分上沉积金属而自对准。

    Aluminum gallium nitride heterojunction bipolar transistor
    10.
    发明授权
    Aluminum gallium nitride heterojunction bipolar transistor 失效
    氮化镓铝异质结双极晶体管

    公开(公告)号:US5923058A

    公开(公告)日:1999-07-13

    申请号:US795807

    申请日:1997-02-05

    摘要: A heat tolerant, frequency responsive transistor for use in the microwave region includes a collector region, a base region overlying the collector region, and an emitter region including an AlGaN layer overlying at least part of said base region, forming a heterojunction between said base region and said emitter region. The emitter region may include two layers. The HBT may be mounted on a SiC or sapphire substrate. The HBT may include a buffer layer between the substrate and the collector region.

    摘要翻译: 用于微波区域的耐热频率响应晶体管包括集电极区域,覆盖集电极区域的基极区域和包括覆盖在所述基极区域的至少一部分上的AlGaN层的发射极区域,在所述基极区域之间形成异质结 和所述发射极区域。 发射极区域可以包括两层。 HBT可以安装在SiC或蓝宝石衬底上。 HBT可以包括在衬底和收集器区域之间的缓冲层。