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    • 12. 发明授权
    • Piezoelectric laterally vibrating resonator structure geometries for spurious frequency suppression
    • 压电横向振动谐振器结构几何形状用于杂散频率抑制
    • US08816567B2
    • 2014-08-26
    • US13186281
    • 2011-07-19
    • Chengjie ZuoChanghan YunChi Shun LoJonghae Kim
    • Chengjie ZuoChanghan YunChi Shun LoJonghae Kim
    • H01L41/04H03H3/02H03H9/02H03H9/17
    • H03H9/02228H03H3/02H03H9/02055H03H9/173H03H2003/021Y10T29/42
    • This disclosure provides implementations of electromechanical systems resonator structures, devices, apparatus, systems, and related processes. In one aspect, a resonator structure includes a first conductive layer of electrodes and a second conductive layer of electrodes. A piezoelectric layer including a piezoelectric material is disposed between the first conductive layer and the second conductive layer. One or more trenches can be formed in the piezoelectric layer on one or both sides in space regions between the electrodes. In some implementations, a process for forming the resonator structure includes removing an exposed portion of the piezoelectric layer to define a trench, for instance, by partial etching or performing an isotropic release etch using a XeF2 gas or SF6 plasma. In some other implementations, a portion of a sacrificial layer is removed to define a trench in the piezoelectric layer.
    • 本公开提供了机电系统谐振器结构,设备,装置,系统和相关过程的实现。 一方面,谐振器结构包括电极的第一导电层和电极的第二导电层。 包括压电材料的压电层设置在第一导电层和第二导电层之间。 一个或多个沟槽可以在电极之间的空间区域的一侧或两侧的压电层中形成。 在一些实施方案中,用于形成谐振器结构的工艺包括去除压电层的暴露部分以限定沟槽,例如通过部分蚀刻或使用XeF 2气体或SF 6等离子体进行各向同性释放蚀刻。 在一些其他实施方案中,去除牺牲层的一部分以在压电层中限定沟槽。
    • 13. 发明申请
    • COMBINED RESONATORS AND PASSIVE CIRCUIT COMPONENTS FOR FILTER PASSBAND FLATTENING
    • 组合式谐振器和无源电路组件,用于滤波器平滑
    • US20130120081A1
    • 2013-05-16
    • US13295955
    • 2011-11-14
    • Chengjie ZuoChi Shun LoSanghoon JooChanghan YunJonghae Kim
    • Chengjie ZuoChi Shun LoSanghoon JooChanghan YunJonghae Kim
    • H03H9/54G06F3/038
    • H03H9/542H03H9/02228H03H9/564
    • This disclosure provides implementations of electromechanical systems combined resonator and passive circuit components. In one aspect, passband flattened filter apparatus includes a resonator structure and input and output passband flattening components. The resonator structure has a first input, a second input coupled to a ground terminal, a first output, and a second output coupled to the ground terminal. The input passband flattening component includes a first inductor having an output coupled to the first input of the resonator structure, and a second inductor having an input coupled to the first input of the resonator structure and an output coupled to the ground terminal. The output passband flattening component includes a first inductor having an input coupled to the first output of the resonator structure, and a second inductor having an input coupled to the first output of the resonator structure and an output coupled to the ground terminal.
    • 本公开提供了机电系统组合谐振器和无源电路部件的实现。 一方面,通带扁平滤波器装置包括谐振器结构以及输入和输出通带扁平部件。 谐振器结构具有耦合到接地端子的第一输入端,第二输入端,第一输出端和耦合到接地端子的第二输出端。 输入通带平坦化部件包括具有耦合到谐振器结构的第一输入的输出的第一电感器和具有耦合到谐振器结构的第一输入的输入端和耦合到接地端子的输出的第二电感器。 输出通带平坦化部件包括具有耦合到谐振器结构的第一输出的输入的第一电感器和具有耦合到谐振器结构的第一输出的输入端和耦合到接地端子的输出的第二电感器。