Pyroelectric-type IR receiving element and IR sensor using the same
    2.
    发明授权
    Pyroelectric-type IR receiving element and IR sensor using the same 失效
    热电型IR接收元件和使用其的IR传感器

    公开(公告)号:US6121614A

    公开(公告)日:2000-09-19

    申请号:US837105

    申请日:1997-04-14

    IPC分类号: G01J5/34 G01J5/02 H01L37/02

    CPC分类号: G01J5/34

    摘要: A pyroelectric-type IR receiving element comprises a pyroelectric substrate which is fixed to a supporting body at its support ends and at least one rectangular patch formed in the substrate. The patch is formed on its opposite surfaces with first and second electrodes which are overlapped to each other. The substrate has a U-shaped slit composed of a pair of side slits and a base slit connecting the side slits. The U-shaped slit surrounds continuously three sides of the patch, so that the patch is supported by the substrate in a cantilever fashion at a cantilever end which is opposed to one of the support ends of the substrate. Since a thermal stress applied to the substrate when the substrate is exposed to a temperature change is absorbed by the U-shaped slit, a stress concentration to be considered is not developed in the patch. As a result, it is possible to reduce the occurrence of popcorn noise, while maintaining good IR sensitivity.

    摘要翻译: 热电式IR接收元件包括热电衬底,其在其支撑端处固定到支撑体,并且在衬底中形成至少一个矩形贴片。 贴片在其相对表面上形成有彼此重叠的第一和第二电极。 基板具有由一对侧缝隙构成的U形狭缝和连接侧缝的基部狭缝。 U形狭缝连续地包围贴片的三个侧面,使得贴片以悬臂的方式由基底支撑在与基底的一个支撑端相对的悬臂端。 由于当基板暴露于温度变化时施加到基板的热应力被U形狭缝吸收,所以在贴片中不会产生要考虑的应力集中。 结果,可以在保持良好的红外线灵敏度的同时减少爆米花噪声的发生。

    MEMS SWITCH AND METHOD OF MANUFACTURING THE MEMS SWITCH
    9.
    发明申请
    MEMS SWITCH AND METHOD OF MANUFACTURING THE MEMS SWITCH 失效
    MEMS开关及制造MEMS开关的方法

    公开(公告)号:US20110024274A1

    公开(公告)日:2011-02-03

    申请号:US12935282

    申请日:2009-03-30

    IPC分类号: H01H57/00 H01L41/22

    摘要: The MEMS switch comprises a substrate with signal-lines having fixed-contacts, a movable-plate with a movable-contact, a flexible support-member supporting the movable-plate, a static-actuator and a piezoelectric-actuator configured to contact the movable-contact with the fixed-contact. The movable-contact is provided at its longitudinal center with the movable-contact, and its both the longitudinal ends with static-movable-electrode-plate. The support-member is four strips disposed on portions outside of the both width ends of the movable plate. The strip extends along the longitudinal direction of the movable plate, provided with a first end fixed to the movable plate, and provided with a second end fixed to the substrate. The piezoelectric-element is disposed on an upper surface of the strip to be located at a portion outside of the width ends of the movable-plate. The piezoelectric-actuator is configured to develop the stress applied to the coupling-portion which is created between each the strip and the movable-plate.

    摘要翻译: MEMS开关包括具有固定触点的信号线的基板,具有可移动触点的可移动板,支撑可移动板的柔性支撑构件,静电致动器和压电致动器,其构造成接触可动触点 - 与固定联系人联系。 可动触点在其纵向中心处设置有可动触头,并且其两个纵向端部具有静电可动电极板。 支撑构件是设置在可动板的两个宽度端的外侧的四个条。 该条带沿可移动板的纵向方向延伸,设置有固定到可移动板的第一端,并设置有固定到基板的第二端。 压电元件设置在条的上表面上,以位于可移动板的宽度端的外侧的部分。 压电致动器被配置为产生施加到在每个条和可移动板之间产生的联接部分的应力。

    BANDPASS FILTER AND PROCESS OF FABRICATING THE SAME
    10.
    发明申请
    BANDPASS FILTER AND PROCESS OF FABRICATING THE SAME 失效
    BANDPASS过滤器及其制造方法

    公开(公告)号:US20100117763A1

    公开(公告)日:2010-05-13

    申请号:US12528070

    申请日:2008-02-19

    IPC分类号: H03H9/205 H01P1/203 H01L41/22

    摘要: A bandpass filter includes a combination of a BAW filter and a patterned planar filter with stubs. The BAW filter is composed of a plurality of piezoelectric resonators to give a specific frequency bandpass, while the planer filter is configured to attenuate frequencies near and outside the bandpass. The resonators are connected in a ladder configuration between a first signal transmission path and a ground. The planar filter includes a strip line formed on a dielectric layer to define a second signal transmission path. The BAW filter and the planar filter are formed on a common substrate with the first and second transmission paths connected to each other. The BAW filter, in combination with the patterned planar filter added with the stub, can improve a deep near-band rejection inherent to the BAW filter, exhibiting an excellent out-of-band rejection over certain adjacent frequency ranges outside of the bandpass, and therefore give a sharp and wide bandpass.

    摘要翻译: 带通滤波器包括BAW滤波器和具有短截线的图案化平面滤波器的组合。 BAW滤波器由多个压电谐振器组成,以提供特定的频带通量,而平面滤波器被配置为衰减带通附近和外的频率。 谐振器以第一信号传输路径和地之间的梯形结构连接。 平面滤波器包括形成在电介质层上以限定第二信号传输路径的带状线。 BAW滤波器和平面滤波器形成在公共基板上,其中第一和第二传输路径彼此连接。 BAW滤波器与添加有短截线的图形平面滤波器组合可以改善BAW滤波器固有的深近带阻抗,在带通外的某些相邻频率范围内表现出优异的带外抑制,以及 因此给出一个清晰而宽广的带通。