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    • 4. 发明授权
    • Transistor with pi-gate structure and method for producing the same
    • 具有pi栅极结构的晶体管及其制造方法
    • US06734528B2
    • 2004-05-11
    • US09755436
    • 2001-01-04
    • Jin-Koo RheeHyun-Sik ParkDan AnYeon-Sik Chae
    • Jin-Koo RheeHyun-Sik ParkDan AnYeon-Sik Chae
    • H01L2940
    • H01L29/66462H01L29/0657H01L29/42316
    • The present invention discloses an improved transistor with a &pgr;-gate structure usable at microwave and millimeter wave and comprises a GaAs wafer, GND formed on the bottom surface of the wafer and grounded to source layers formed on the top surface of the wafer by the process of back-side via-hole. A drain is formed on the top surface of the wafer between the source layers and has an air layer on top. A gate, shaped as a result of using an air bridge technique, contacts the top surface of the wafer between the source layers and the drain so as to support the wafer at laterally opposite ends over the air layer of the drain. The gate having &pgr;-structure improves noise characteristics of the transistor because of low electrical resistance, which is a result of the gate structure straddling above the drain stage.
    • 本发明公开了一种具有可在微波和毫米波上使用的p型栅极结构的改进晶体管,并且包括形成在晶片的底表面上的GaAs晶片,GND,通过该工艺在晶片顶表面上形成的源极接地 的背面通孔。 在源层之间的晶片的顶表面上形成漏极,顶部具有空气层。 作为使用空气桥技术的结果而成形的门,在源极层和漏极之间接触晶片的顶表面,以便在漏极的空气层上的横向相对端支撑晶片。 具有pi结构的栅极由于栅极结构跨越漏极级上的结果导致低电阻,从而改善了晶体管的噪声特性。
    • 5. 发明申请
    • Real time imaging expandable passive millimeter wave system for detecting concealed objects
    • 实时成像可扩展被动毫米波系统,用于检测隐藏物体
    • US20090212988A1
    • 2009-08-27
    • US12072533
    • 2008-02-26
    • Kyung-Kwon JungJin-Koo Rhee
    • Kyung-Kwon JungJin-Koo Rhee
    • G01S13/00
    • G01S13/887G01S13/89
    • A passive millimeter wave system of this invention is comprised of; human body detector sensors which detect human bodies passing a scanner; passive millimeter wave image sensor modules arranged horizontally or vertically to acquire millimeter wave images radiated from human body in horizontal and vertical axes at certain time intervals; amplifier which amplifies the DC voltage from passive millimeter image sensor modules to a certain level; analog-digital converter which transforms the amplified DC voltage to digital signals; mobility detector which detects movement of human body passing predetermined position to acquire millimeter wave signals from human body; digital signal processor which interlinks and reconstructs signals with the time and position of the object obtained from mobility detector and the signals obtained by passive millimeter image sensor modules; monitor which displays the image of the signals processed with digital signal processor.
    • 本发明的被动毫米波系统包括: 检测人体通过扫描仪的人体检测器传感器; 被动毫米波图像传感器模块水平或垂直排列,以一定的时间间隔采集水平和垂直轴从人体辐射的毫米波图像; 放大器,将直流电压从被动毫米图像传感器模块放大到一定水平; 模拟数字转换器,将放大的直流电压变换成数字信号; 移动检测器,其检测人体通过预定位置的运动以从人体获取毫米波信号; 数字信号处理器,其与从移动性检测器获得的对象的时间和位置以及被动毫米图像传感器模块获得的信号相互连接并重建信号; 监视器显示用数字信号处理器处理的信号的图像。
    • 6. 发明授权
    • Real time imaging expandable passive millimeter wave system for detecting concealed objects
    • 实时成像可扩展被动毫米波系统,用于检测隐藏物体
    • US07692150B2
    • 2010-04-06
    • US12072533
    • 2008-02-26
    • Kyung-Kwon JungJin-Koo Rhee
    • Kyung-Kwon JungJin-Koo Rhee
    • G01J5/00
    • G01S13/887G01S13/89
    • A passive millimeter wave system of this invention is comprised of; human body detector sensors which detect human bodies passing a scanner; passive millimeter wave image sensor modules arranged horizontally or vertically to acquire millimeter wave images radiated from human body in horizontal and vertical axes at certain time intervals; amplifier which amplifies the DC voltage from passive millimeter image sensor modules to a certain level; analog-digital converter which transforms the amplified DC voltage to digital signals; mobility detector which detects movement of human body passing predetermined position to acquire millimeter wave signals from human body; digital signal processor which interlinks and reconstructs signals with the time and position of the object obtained from mobility detector and the signals obtained by passive millimeter image sensor modules; monitor which displays the image of the signals processed with digital signal processor.
    • 本发明的被动毫米波系统包括: 检测人体通过扫描仪的人体检测器传感器; 被动毫米波图像传感器模块水平或垂直排列,以一定的时间间隔采集水平和垂直轴从人体辐射的毫米波图像; 放大器,将直流电压从被动毫米图像传感器模块放大到一定水平; 模拟数字转换器,将放大的直流电压变换成数字信号; 移动检测器,其检测人体通过预定位置的运动以从人体获取毫米波信号; 数字信号处理器,其与从移动性检测器获得的对象的时间和位置以及被动毫米图像传感器模块获得的信号相互连接并重建信号; 监视器显示用数字信号处理器处理的信号的图像。
    • 9. 发明授权
    • Method for manufacturing micro-machined switch using pull-up type contact pad
    • US07300813B2
    • 2007-11-27
    • US11231551
    • 2005-09-20
    • Jin-Koo RheeSeong-Dae Lee
    • Jin-Koo RheeSeong-Dae Lee
    • H01L21/00
    • H01H59/0009
    • The present invention relates to the manufacture of a semiconductor switch for use in a variety of communication systems, and particularly to the manufacture of a RF micro-machined switch of pull-up type, wherein an electrostatic electrode is used so as to cause the contact pad involved in the operation of the switch to be pulled upward from below.The RF micro-machined switch of pull-up type according to the invention has a high isolation characteristic for shorting and opening the circuit and needs a low driving voltage, so that miniaturization of communication system is possible because a circuit for booting driving voltage is not required within the system. Further, the characteristic of switch is little changed after a long use because the metal composing the contact pad experiences little deformation during operation, whereby the semi-permanent use of switch is possible.The present invention provides a pull-up type RF micro-machined switch, wherein the shorting of the contact pad with the transmission lines is possible with a low DC voltage by altering the conventional pull-down type electrostatic electrode into a pull-up structure and the opening of the circuit is facilitated by the weight of the contact pad by composing the contact pad in a thick metal layer.
    • 10. 发明申请
    • Method for manufacturing micro-machined switch using pull-up type contact pad
    • 使用上拉式接触垫制造微加工开关的方法
    • US20070065978A1
    • 2007-03-22
    • US11231551
    • 2005-09-20
    • Jin-Koo RheeSeong-Dae Lee
    • Jin-Koo RheeSeong-Dae Lee
    • H01L21/00H01L21/44
    • H01H59/0009
    • The present invention relates to the manufacture of a semiconductor switch for use in a variety of communication systems, and particularly to the manufacture of a RF micro-machined switch of pull-up type, wherein an electrostatic electrode is used so as to cause the contact pad involved in the operation of the switch to be pulled upward from below. The RF micro-machined switch of pull-up type according to the invention has a high isolation characteristic for shorting and opening the circuit and needs a low driving voltage, so that miniaturization of communication system is possible because a circuit for booting driving voltage is not required within the system. Further, the characteristic of switch is little changed after a long use because the metal composing the contact pad experiences little deformation during operation, whereby the semi-permanent use of switch is possible. The present invention provides a pull-up type RF micro-machined switch, wherein the shorting of the contact pad with the transmission lines is possible with a low DC voltage by altering the conventional pull-down type electrostatic electrode into a pull-up structure and the opening of the circuit is facilitated by the weight of the contact pad by composing the contact pad in a thick metal layer.
    • 本发明涉及一种用于各种通信系统的半导体开关的制造,特别涉及一种上拉式RF微加工开关的制造,其中使用静电电极以引起接触 垫片涉及开关的操作,从下方向上拉。 根据本发明的上拉型RF微加工开关具有高的隔离特性,用于短路和断开电路并且需要低驱动电压,使得通信系统的小型化是可能的,因为用于引导驱动电压的电路不是 需要在系统内。 此外,由于构成接触垫的金属在操作期间几乎没有变形,因此长时间使用后开关的特性几乎没有变化,从而可以半开式使用开关。 本发明提供一种上拉型RF微加工开关,其中通过将常规下拉式静电电极改变为上拉结构,可以以低直流电压使接触焊盘与传输线短接,并且 通过在厚金属层中构成接触垫,通过接触垫的重量来促进电路的开口。