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    • 12. 发明授权
    • System and method for de-embedding a device under test employing a parametrized netlist
    • 使用参数化网表解嵌入被测设备的系统和方法
    • US07741857B2
    • 2010-06-22
    • US12043169
    • 2008-03-06
    • Basanth JagannathanZhenrong JinHongmei Li
    • Basanth JagannathanZhenrong JinHongmei Li
    • G01R35/00G01D18/00G01P21/00
    • G01R27/32G01R35/00
    • S-parameter data is measured on an embedded device test structure, an open dummy, and a short dummy. A 4-port network of the pad set parasitics of the embedded device test structure is modeled by a parameterized netlist containing a lumped element network having at least one parameterized lumped element. The S-parameter data across a range of measurement frequencies is fitted with the parameterized netlist employing the at least one parameterized lumped element as at least one fitting parameter for the S-parameter data. Thus, the fitting method is a multi-frequency fitting for the at least one parameterized lumped element. A 4-port Y-parameter (admittance parameter) is obtained from the fitted parameterized netlist. The Y-parameter of the device under test is obtained from the measured admittance of the embedded device test structure and the calculated 4-port Y parameter.
    • S参数数据是在嵌入式设备测试结构上测量的,一个开放虚拟的和一个短虚拟的。 嵌入式设备测试结构的焊盘组寄生效应的4端口网络由包含具有至少一个参数化集总元件的集总元件网络的参数化网表建模。 跨越测量频率范围的S参数数据与采用至少一个参数化集总元件的参数化网表相配合,作为S参数数据的至少一个拟合参数。 因此,拟合方法是用于至少一个参数化的集总元件的多频率拟合。 从拟合的参数化网表获得4端口Y参数(导纳参数)。 被测器件的Y参数是从嵌入式器件测试结构的测量导纳和计算的4端口Y参数获得的。
    • 15. 发明授权
    • BiCMOS integration scheme with raised extrinsic base
    • BiCMOS整合方案具有突出的外在基础
    • US06780695B1
    • 2004-08-24
    • US10249563
    • 2003-04-18
    • Huajie ChenSeshadri SubbannaBasanth JagannathanGregory G. FreemanDavid C. AhlgrenDavid AngellKathryn T. SchonenbergKenneth J. SteinFen F. Jamin
    • Huajie ChenSeshadri SubbannaBasanth JagannathanGregory G. FreemanDavid C. AhlgrenDavid AngellKathryn T. SchonenbergKenneth J. SteinFen F. Jamin
    • H01L218238
    • H01L21/8249H01L27/0623
    • A method of forming a BiCMOS integrated circuit having a raised extrinsic base is provided. The method includes first forming a polysilicon layer atop a surface of a gate dielectric which is located atop a substrate having device areas for forming at least one bipolar transistor and device areas for forming at least one complementary metal oxide semiconductor (CMOS) transistor. The polysilicon layer is then patterned to provide a sacrificial polysilicon layer over the device areas for forming the at least one bipolar transistor and its surrounding areas, while simultaneously providing at least one gate conductor in the device areas for forming at least one CMOS transistor. At least one pair of spacers are then formed about each of the at least one gate conductor and then a portion of the sacrificial polysilicon layer over the bipolar device areas are selectively removed to provide at least one opening in the bipolar device area. At least one bipolar transistor having a raised extrinsic base is then formed in the at least one opening.
    • 提供一种形成具有凸起的外在基极的BiCMOS集成电路的方法。 该方法包括首先在位于具有用于形成至少一个双极晶体管的器件区域的衬底的顶部的栅极电介质的表面上方形成多晶硅层,以及用于形成至少一个互补金属氧化物半导体(CMOS)晶体管的器件区域)。 然后将多晶硅层图案化以在器件区域上提供用于形成至少一个双极晶体管及其周围区域的牺牲多晶硅层,同时在用于形成至少一个CMOS晶体管的器件区域中提供至少一个栅极导体。 然后围绕至少一个栅极导体的每一个形成至少一对间隔物,然后选择性地去除双极器件区域上的牺牲多晶硅层的一部分以在双极器件区域中提供至少一个开口。 然后在至少一个开口中形成至少一个具有凸起的非本征基极的双极晶体管。