Fabrication of broadband surface-micromachined micro-electro-mechanical switches for microwave and millimeter-wave applications
    241.
    发明授权
    Fabrication of broadband surface-micromachined micro-electro-mechanical switches for microwave and millimeter-wave applications 有权
    用于微波和毫米波应用的宽带表面微加工微机电开关的制造

    公开(公告)号:US06331257B1

    公开(公告)日:2001-12-18

    申请号:US09452052

    申请日:1999-11-30

    Abstract: Methods for the design and fabrication of micro-electro-mechanical switches are disclosed. Two different switch designs with three different switch fabrication techniques are presented for a total of six switch structures. Each switch has a multiple-layer armature with a suspended biasing electrode and a conducting transmission line affixed to the structural layer of the armature. A conducting dimple is connected to the conducting line to provide a reliable region of contact for the switch. The switch is fabricated using silicon nitride as the armature structural layer and silicon dioxide as the sacrificial layer supporting the armature during fabrication. Hydrofluoric acid is used to remove the silicon dioxide layer with post-processing in a critical point dryer to increase yield.

    Abstract translation: 公开了微机电开关的设计和制造方法。 提出了三种不同的开关制造技术的两种不同的开关设计,共有六种开关结构。 每个开关具有多层电枢,其具有悬置的偏置电极和固定到电枢的结构层的导电传输线。 导电凹坑连接到导线,为开关提供可靠的接触区域。 该开关使用氮化硅作为电枢结构层和二氧化硅作为在制造期间支撑电枢的牺牲层制造。 氢氟酸用于在临界点干燥器中进行后处理以去除二氧化硅层以提高产率。

    Integrated sensor having plurality of released beams for sensing acceleration and associated methods
    242.
    发明授权
    Integrated sensor having plurality of released beams for sensing acceleration and associated methods 有权
    集成传感器具有多个用于感测加速度和相关方法的释放光束

    公开(公告)号:US06235550B1

    公开(公告)日:2001-05-22

    申请号:US09478026

    申请日:2000-01-05

    Abstract: An integrated circuit and method are provided for sensing activity such as acceleration in a predetermined direction of movement. The integrated released beam sensor preferably includes a switch detecting circuit region and a sensor switching region connected to and positioned adjacent the switch detecting circuit region. The sensor switching region preferably includes a plurality of floating contacts positioned adjacent and lengthwise extending outwardly from said switch detecting circuit region for defining a plurality of released beams so that each of said plurality of released beams displaces in a predetermined direction responsive to acceleration. The plurality of released beams preferably includes at least two released beams lengthwise extending outwardly from the switch detecting circuit region to different predetermined lengths and at least two released beams lengthwise extending outwardly from the switch detecting circuit region to substantially the same predetermined lengths. The methods of forming an integrated sensor advantageously are preferably compatible with know integrated circuit manufacturing processes, such as for CMOS circuit manufacturing, with only slight variations therefrom.

    Abstract translation: 提供集成电路和方法用于感测诸如预定运动方向的加速度的活动。 集成释放的光束传感器优选地包括开关检测电路区域和连接到并且位于开关检测电路区域附近的传感器开关区域。 传感器切换区域优选地包括多个浮动触点,其位于邻近并纵向地从所述开关检测电路区域向外延伸,用于限定多个释放的波束,使得所述多个释放波束中的每一个响应加速度以预定方向移动。 多个释放的光束优选地包括至少两个从开关检测电路区域向外延伸到不同预定长度的释放光束,以及至少两个从开关检测电路区域向外延伸到大致相同的预定长度的释放光束。 有利地形成集成传感器的方法优选地与知道的集成电路制造工艺相兼容,例如用于CMOS电路制造,仅具有轻微的变化。

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