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    • 52. 发明申请
    • Semiconductor Device and Method of Shunt Test Measurement for Passive Circuits
    • 半导体器件和无源电路并联测试测量方法
    • US20100001268A1
    • 2010-01-07
    • US12167039
    • 2008-07-02
    • Robert C. FryeKai LiuYaojian Lin
    • Robert C. FryeKai LiuYaojian Lin
    • H01L23/58H01L21/02
    • H01L22/34H01L23/64H01L28/10H01L28/40H01L2224/48091H01L2224/73265H01L2924/3011H01L2924/00014
    • A semiconductor device has an inductor and capacitor formed on the substrate. The inductor and capacitor are electrically connected in series. The inductor is a coiled conductive layer. The capacitor has first and second conductive layers separated by an insulating layer. A first test pad and second test pad are formed on the substrate. A terminal of the inductor is coupled to the first and second test pads. A third test pad and fourth test pad are formed on the substrate. A terminal of the capacitor is coupled to the third and fourth test pads such that the inductor and capacitor are connected in shunt between the first and second test pads and the third and fourth test pads. An electrical characteristic of the inductor and capacitor such that resonant frequency and quality factor are tested using a two-port shunt measurement which negates series resistance of test probes.
    • 半导体器件具有形成在衬底上的电感器和电容器。 电感器和电容器串联电连接。 电感器是线圈导电层。 该电容器具有被绝缘层隔开的第一和第二导电层。 在基板上形成第一测试焊盘和第二测试焊盘。 电感器的端子耦合到第一和第二测试焊盘。 在基板上形成第三测试焊盘和第四测试焊盘。 电容器的端子耦合到第三和第四测试焊盘,使得电感器和电容器在第一和第二测试焊盘与第三和第四测试焊盘之间分流连接。 电感器和电容器的电气特性使得谐振频率和品质因数使用双端口分流测量进行测试,这样可以消除测试探针的串联电阻。
    • 58. 发明授权
    • Multiplexers employing bandpass-filter architectures
    • 采用带通滤波器架构的多路复用器
    • US07606184B2
    • 2009-10-20
    • US11029664
    • 2005-01-04
    • Kai LiuRichard Kommrusch
    • Kai LiuRichard Kommrusch
    • H04L5/00
    • H03H7/463H03H2001/0085
    • A multiplexer, such as a diplexer, is delineated. The multiplexer may be employed in a communications system that may communicate in multiple frequency bands within a predefined range of frequencies, e.g., 2400 MHz-4900 MHz. The communications system may operate in a network, such as a wireless local area network, without significant interference from signals used by a cellular/mobile telephone system. The multiplexer may include multiple channels with bandpass filters that may be formed with lumped inductors and lumped capacitors. In at least one of the channels, the bandpass filter may be formed by combining at least one lowpass filter with at least one highpass filter.
    • 已经描述了诸如双工器之类的多路复用器。 多路复用器可以用在可以在预定范围的频率(例如2400MHz-4900MHz)内在多个频带中通信的通信系统中。 通信系统可以在诸如无线局域网的网络中操作,而不会由蜂窝/移动电话系统使用的信号的显着干扰。 多路复用器可以包括具有带通滤波器的多个通道,其可以形成有集总电感器和集总电容器。 在至少一个通道中,可以通过将至少一个低通滤波器与至少一个高通滤波器组合来形成带通滤波器。