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    • 9. 发明申请
    • THIN FILM ELECTRODE CERAMIC SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME
    • 薄膜电极陶瓷基板及其制造方法
    • US20130032384A1
    • 2013-02-07
    • US13565249
    • 2012-08-02
    • Won Hee YooByeung Gyu ChangTaek Jung LeeYun Hwi Park
    • Won Hee YooByeung Gyu ChangTaek Jung LeeYun Hwi Park
    • H05K1/03H05K3/22
    • H05K3/243H05K1/0306H05K3/107H05K3/108H05K2201/0338
    • Disclosed herein are a thin film electrode ceramic substrate and a method for manufacturing the same. The thin film electrode ceramic substrate includes: a ceramic substrate; a thin film electrode pattern formed on the ceramic substrate; and a plating layer formed on the thin film electrode pattern, wherein the plating layer is formed above the thin film electrode pattern and on both lateral surfaces of the thin film electrode pattern. According to the present invention, an undercut defect occurring between the surface of the ceramic substrate and the thin film electrode pattern and between the thin film electrode patterns due to an etchant can be prevented, by forming a plating layer above the thin film electrode pattern or on both lateral surfaces of the thin film electrode pattern, or forming an intaglio type anti-etching metal layer in the surface of the ceramic substrate.
    • 本文公开了一种薄膜电极陶瓷基板及其制造方法。 薄膜电极陶瓷基板包括:陶瓷基板; 形成在陶瓷基板上的薄膜电极图案; 以及形成在所述薄膜电极图案上的镀层,其中所述镀层形成在所述薄膜电极图案的上方以及所述薄膜电极图案的两个侧面上。 根据本发明,通过在薄膜电极图案上方形成镀层,可以防止在陶瓷基板的表面与薄膜电极图案之间以及由于蚀刻剂引起的薄膜电极图案之间发生的底切缺陷,或 在薄膜电极图案的两个侧表面上,或在陶瓷基板的表面中形成凹版型的抗蚀刻金属层。
    • 10. 发明申请
    • POWER AMPLIFYING DEVICE HAVING LINEARIZER
    • 具有线性化的功率放大器件
    • US20080238553A1
    • 2008-10-02
    • US12049005
    • 2008-03-14
    • Yun Hee CHOChul Soon ParkJi Hoon KimYun Hwi Park
    • Yun Hee CHOChul Soon ParkJi Hoon KimYun Hwi Park
    • H03F3/04
    • H03F1/0266H03F1/32H03F2200/18
    • There is provided a power amplifying device having a linearizer in which a bias circuit has an initial impedance set when initially operated, then the impedance is varied according to a level of an input signal and the input signal is amplified in a broad range from a low level region to a high level region, thereby improving linearity of an output signal. The power amplifying device including: an amplifying unit receiving a bias power source and amplifying an input signal; a bias unit varying the bias power source according to a set impedance to provide to the amplifying unit; and an impedance setting unit setting the impedance of the bias unit in response to a preset control voltage when the bias unit is initially operated and re-setting the impedance of the bias unit according to a level of the input signal of the amplifying unit after initial operation of the bias unit.
    • 提供一种功率放大装置,其具有线性化装置,其中偏置电路在初始操作时具有设定的初始阻抗,然后根据输入信号的电平来改变阻抗,并且输入信号在低范围内被放大 电平区域到高电平区域,从而提高输出信号的线性度。 功率放大装置包括:放大单元,接收偏置电源并放大输入信号; 偏置单元根据设定的阻抗改变偏置电源以提供给放大单元; 以及阻抗设定单元,当偏置单元初始操作时,响应于预设的控制电压来设定偏置单元的阻抗,并根据放大单元的输入信号的电平在初始化之后重新设置偏置单元的阻抗 偏置单元的操作。