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    • 4. 发明申请
    • GaN semiconductor device
    • GaN半导体器件
    • US20090256159A1
    • 2009-10-15
    • US12382955
    • 2009-03-27
    • Yi-Chieh LinCheng-Ta KuoYu-Pin HsuChi-Ming Tsai
    • Yi-Chieh LinCheng-Ta KuoYu-Pin HsuChi-Ming Tsai
    • H01L33/00H01L29/20
    • H01L33/12H01L21/0237H01L21/02458H01L21/0254H01L21/02642H01L21/02647H01L33/007
    • This invention discloses a GaN semiconductor device comprising a substrate; a metal-rich nitride compound thin film on the substrate; a buffer layer formed on the metal-rich nitride compound thin film, and a semiconductor stack layer on the buffer layer wherein the metal-dominated nitride compound thin film covers a partial upper surface of the substrate. Because metal-rich nitride compound is amorphous, the epitaxial growth direction of the buffer layer grows upwards in the beginning and then turns laterally, and the epitaxy defects of the buffer layer also bend with the epitaxial growth direction of the buffer layer. Therefore, the probability of the epitaxial defects extending to the semiconductor stack layer is reduced and the reliability of the GaN semiconductor device is improved.
    • 本发明公开了一种包括基板的GaN半导体器件; 在基板上形成富金属的氮化物化合物薄膜; 形成在富金属氮化物化合物薄膜上的缓冲层,以及缓冲层上的半导体堆叠层,其中金属主导的氮化物化合物薄膜覆盖基板的部分上表面。 因为富金属的氮化物是非晶体,所以缓冲层的外延生长方向在开始时向上生长然后横向变化,并且缓冲层的外延缺陷也随着缓冲层的外延生长方向而弯曲。 因此,延伸到半导体堆叠层的外延缺陷的概率降低,并且提高了GaN半导体器件的可靠性。
    • 6. 发明授权
    • Wireless transceiver apparatus having circuit unit forming frequency resonance mode when operated under reception mode
    • 具有在接收模式下操作时形成频率共振模式的电路单元的无线收发装置
    • US08649740B2
    • 2014-02-11
    • US13175891
    • 2011-07-04
    • Yi-Chieh LinYu-Hsin Chen
    • Yi-Chieh LinYu-Hsin Chen
    • H04B1/44
    • H04B1/48
    • A wireless transceiver apparatus is provided. The wireless transceiver apparatus includes a signal transmitting circuit, a circuit unit, and a signal receiving circuit. The signal transmitting circuit includes a first output port and is utilized for outputting a first transmission signal via the first output port in a transmission mode. The circuit unit is coupled to the first output port of the signal transmitting circuit. The signal receiving circuit includes a first receiving port and is utilized for receiving a first wireless communication signal via the first receiving port in a reception mode. The first output port is coupled to the first receiving port at a first node. The circuit unit forms a frequency resonance mode to increase an impedance value of the signal transmitting circuit seen by a signal at the first node.
    • 提供了一种无线收发器装置。 无线收发装置包括信号发送电路,电路单元和信号接收电路。 信号发送电路包括第一输出端口,用于以传输模式经由第一输出端口输出第一传输信号。 电路单元耦合到信号发送电路的第一输出端口。 信号接收电路包括第一接收端口,用于以接收模式经由第一接收端口接收第一无线通信信号。 第一输出端口在第一节点处耦合到第一接收端口。 电路单元形成频率共振模式,以增加由第一节点处的信号所看到的信号发送电路的阻抗值。