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    • 68. 发明公开
    • 화합물 반도체 스위치 회로 장치
    • 化合物半导体开关电路
    • KR1020020076127A
    • 2002-10-09
    • KR1020020015850
    • 2002-03-23
    • 산요덴키가부시키가이샤
    • 아사노데쯔로히라이도시까즈
    • H01L29/80
    • H01L29/812H01L27/0605
    • PURPOSE: To provide a compound semiconductor switch circuit device capable of outputting a required maximum power even when a gate width is 400 μm. CONSTITUTION: In the compound semiconductor switch circuit device, a design manner for widely securing the gate width Wg and reducing an FET on- resistance in order to reduce an insertion loss as less as possible is employed. In addition, means for obtaining a predetermined isolation with the gate width of 600 μm is also employed. However, there is a problem of the insufficient power output if the gate width is determined 400 μm for a chip size shrink. By noting a design wherein the isolation is secured by eliminating a shunt FET in a high frequency band over 2.4 GHz, further, an FET in a transmitting side and an FET in a receiving side are formed with asymmetrical circuits having different impurity concentration channel regions. Thus, the circuit providing a predetermined isolation between both signal paths by reducing the gate width to 400 μm and reducing a capacitance component due to a gate electrode, and outputting the required maximum power output, is achieved.
    • 目的:提供即使栅极宽度为400μm也能够输出所需最大功率的复合半导体开关电路器件。 构成:在化合物半导体开关电路装置中,采用用于广泛确保栅极宽度Wg并降低FET导通电阻以便尽可能减小插入损耗的设计方式。 此外,还采用用于获得栅极宽度为600μm的预定隔离的装置。 然而,如果对于芯片尺寸缩小确定了400μm的栅极宽度,则存在功率输出不足的问题。 通过注意到通过在2.4GHz上消除高频带中的并联FET来确保隔离的设计,此外,发送侧的FET和接收侧的FET由具有不同杂质浓度沟道区的不对称电路形成。 因此,实现了通过将栅极宽度减小到400μm并且减小由于栅电极引起的电容分量并输出所需的最大功率输出而在两个信号路径之间提供预定隔离的电路。
    • 69. 发明公开
    • 스위치 회로 장치
    • 化合物半导体开关电路装置
    • KR1020020070114A
    • 2002-09-05
    • KR1020020010093
    • 2002-02-26
    • 산요덴키가부시키가이샤
    • 히라이도시까즈아사노데쯔로
    • H03K17/687
    • H01L27/0605H01L23/4824H01L2924/0002H03K17/693H03K2217/0036H01L2924/00
    • PURPOSE: To solve the problem of the mounting area of a printed board increasing, due to the provision of a control terminal at each FET for making a switch operate. CONSTITUTION: A compound semiconductor switching circuit device comprises first and second FETs, a common input terminal commonly connected to source electrodes or drain electrodes of both the FETs, first and second output terminals connected to the source electrodes or drain electrodes of both the FETs, a bias means for applying a prescribed bias to the first output terminal of the first FET, a connecting means for connecting the control terminal to the second output terminal, a ground means for grounding a gate electrode of the second FET, and an isolating means for isolating the common input terminal and the source electrodes or the drain electrodes of the second FET in the manner of direct current. In this device, a control signal is applied to the control terminal connected to the gate electrode of the first FET.
    • 目的:为了解决印刷电路板的安装面积增加的问题,由于在每个FET处提供用于使开关工作的控制端子。 构成:化合物半导体开关电路器件包括第一和第二FET,公共输入端公共连接到两个FET的源电极或漏电极,连接到两个FET的源电极或漏电极的第一和第二输出端, 用于对第一FET的第一输出端施加规定的偏压的偏置装置,用于将控制端子连接到第二输出端子的连接装置,用于使第二FET的栅电极接地的接地装置,以及用于隔离第二FET的隔离装置 公共输入端子和第二FET的源电极或漏电极以直流方式。 在该装置中,控制信号被施加到连接到第一FET的栅电极的控制端子。