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    • 8. 发明申请
    • BALUN SIGNAL TRANSFORMER
    • BALUN信号变压器
    • US20080258837A1
    • 2008-10-23
    • US11737270
    • 2007-04-19
    • Lianjun LiuQiang Li
    • Lianjun LiuQiang Li
    • H03H7/42
    • H03H7/42H03H7/1775H03H2001/0078
    • A system 20 includes an unbalanced device 22, a balanced device 24, and a balun (balanced-unbalanced) signal transformer 26 interposed between devices 22 and 24. The balun signal transformer 26 includes a balanced external port section 32 formed by ports 40 and 42. The balun signal transformer 26 includes a symmetric transformer 48 having a balanced port 50 formed by terminals 52 and 54. Terminal 52 is electrically interconnected with port 40, and an inductor 64 is interposed between terminal 54 and port 42. The inductor 64 shifts a phase of a signal component 72 at terminal 54 to balance substantially one hundred eighty degrees out-of-phase with a signal component 70 at terminal 52.
    • 系统20包括不平衡装置22,平衡装置24和插入在装置22和24之间的平衡 - 不平衡转换器(平衡 - 不平衡)信号变压器26.平衡不平衡变换器信号变压器26包括由端口40和42形成的平衡外部端口部分32 平衡不平衡变压器信号变压器26包括具有由端子52和54形成的平衡端口50的对称变压器48.端子52与端口40电互连,并且电感器64插入在端子54和端口42之间。电感器64移位 在端子54处的信号部件72的相位相平衡,以平衡与端子52处的信号部件70基本上相差180度的异相。
    • 9. 发明授权
    • Method of making contact posts for a microelectromechanical device
    • 制造微机电装置接触柱的方法
    • US09343242B2
    • 2016-05-17
    • US11767413
    • 2007-06-22
    • Lianjun Liu
    • Lianjun Liu
    • H01H1/00B81C1/00H01H1/06H01H1/20H01H11/04
    • H01H1/0036B81B2201/016B81C1/00103H01H1/06H01H1/20H01H11/04Y10T29/49105Y10T29/49174
    • A device 20 includes a substrate 22 coupled with a substrate 24 such that a volume 32 is formed between the substrates 22, 24. Contact posts 48, 50 on the substrate 22 and a cantilever beam structure 36 on the substrate 24 are located within the volume 32. The cantilever beam structure has a conductive trace 38 that is selectively contactable with the contact posts 48, 50 to yield a microelectromechanical (MEMS) switch within the volume 32. Fabrication methodology for making the contact posts 48, 50 entails forming post protrusions 68, 70 on the substrate 22 and shaping post protrusions 68, 70 so that they acquire a rounded shape. Input and output signal lines 42, 44 are constructed such that respective portions of input and output signal lines 42, 44 overly corresponding post protrusions 68, 70 and take on the shape of post protrusions 68, 70.
    • 器件20包括与衬底24耦合的衬底22,使得在衬底22,24之间形成体积32.衬底22上的接触柱48,50和衬底24上的悬臂梁结构36位于体积 悬臂梁结构具有能够与接触柱48,50选择性地接触的导电迹线38,以在体积32内产生微机电(MEMS)开关。用于制造接触柱48,50的制造方法需要形成后突起68 ,70在基板22上,并且成形柱突起68,70,使得它们获得圆形。 输入和输出信号线42,44被构造成使得输入和输出信号线42,44的相应部分过度对应的柱形突起68,70并且呈立柱形突起68,70的形状。