Surface acoustic wave device with a layered conductive film and method of producing the same
    1.
    发明授权
    Surface acoustic wave device with a layered conductive film and method of producing the same 有权
    具有层状导电膜的表面声波器件及其制造方法

    公开(公告)号:US06377138B1

    公开(公告)日:2002-04-23

    申请号:US09269181

    申请日:1999-06-04

    IPC分类号: H03H964

    摘要: A surface acoustic wave filter element and a method of producing the same. The element is constructed in a manner such that a conductive film, which constitutes a plurality of electrode fingers, a bus bar connecting the electrode fingers in common, an electrode pad connected to the bus bar, etc., is formed on a piezoelectric substrate. When using the surface acoustic wave filter element with this arrangement in a high-frequency band, the thickness of the conductive film and the line width of electrodes are reduced, so that the mechanical strength is a critical problem. According to the present invention, therefore, the conductive film has a two-layer structure, including a layer containing tantalum and aluminum and a metallic layer of aluminum or an alloy consisting mainly of aluminum formed thereon, for example. The composition ratio between tantalum and aluminum is set so that the tantalum content ranges from 39% to 75% (atomic percentage). Thus, the orientation the layer of aluminum or the alloy consisting mainly of aluminum, formed on the layer containing tantalum and aluminum, is improved to increase the strength of the conductive film.

    摘要翻译: 声表面波滤波器元件及其制造方法。 元件的构造方式使得构成多个电极指的导电膜,共同连接电极指的汇流条,连接到汇流条的电极焊盘等形成在压电基板上。 当在高频带中使用具有这种布置的表面声波滤波器元件时,导电膜的厚度和电极的线宽度减小,使得机械强度是关键问题。 因此,根据本发明,导电膜例如具有包含钽和铝的层和铝的金属层或主要由铝形成的合金的层的双层结构。 钽和铝的组成比设定为钽含量为39%〜75%(原子百分比)。 因此,改善了在包含钽和铝的层上形成的主要由铝组成的铝层或铝合金的取向,以增加导电膜的强度。

    Surface acoustic wave apparatus and method of manufacturing the same
    2.
    发明授权
    Surface acoustic wave apparatus and method of manufacturing the same 有权
    声表面波装置及其制造方法

    公开(公告)号:US06404100B1

    公开(公告)日:2002-06-11

    申请号:US09419610

    申请日:1999-10-18

    IPC分类号: H03H900

    摘要: A surface acoustic wave apparatus includes a package having a concave-shaped base and a concave-shaped cap and a surface acoustic wave element housed in the package. The base has a mounting surface on which the surface acoustic wave element is mounted and a side wall raised from the periphery of the mounting surface. The side wall of the base is formed lower than the highest part of the surface acoustic wave element mounted on the mounting surface. Since the surface acoustic wave element mounted on the base is raised above the side wall of the base, the surface acoustic wave element is subjected easily to, for example, test, measurement, fault analysis, and others.

    摘要翻译: 表面声波装置包括具有凹形基部和凹形帽的封装以及容纳在封装中的表面声波元件。 底座具有安装表面声波元件的安装表面和从安装表面的周边升起的侧壁。 底座的侧壁形成为比安装在安装面上的表面声波元件的最高部分低。 由于安装在基座上的表面声波元件在基座的侧壁上方突出,所以表面声波元件容易进行例如测试,测量,故障分析等。

    Radiation type thermometer
    3.
    发明授权
    Radiation type thermometer 失效
    辐射型温度计

    公开(公告)号:US5169235A

    公开(公告)日:1992-12-08

    申请号:US753403

    申请日:1991-08-30

    摘要: A thermometer includes an infrared sensor (14) for receiving infrared radiation to generate a corresponding electrical signal; a reference unit (10) for emitting a standard infrared radiation; a temperature sensor (11) for receiving the standard infrared radiation to generate a corresponding standard electrical signal; a support unit (1, 2) for supporting the infrared sensor and the reference means such that the infrared sensor receives the standard infrared radiation from the reference means in a standby state and infrared radiation from a subject in a measurement state; an arithmetic unit (44) for computing a temperature of the subject based on the electrical signals from the infrared sensor in both the standby and measurement states and from the temperature sensor.

    摘要翻译: 温度计包括用于接收红外辐射以产生相应的电信号的红外传感器(14) 用于发射标准红外辐射的参考单元(10); 温度传感器(11),用于接收所述标准红外辐射以产生相应的标准电信号; 用于支撑红外传感器和参考装置的支撑单元(1,2),使得红外传感器在待机状态下接收来自参考装置的标准红外辐射和在测量状态下来自被摄体的红外辐射; 运算单元(44),用于在备用和测量状态以及温度传感器中基于来自红外传感器的电信号来计算被摄体的温度。

    Surface acoustic wave filter device
    4.
    发明授权
    Surface acoustic wave filter device 失效
    表面声波滤波装置

    公开(公告)号:US06670868B2

    公开(公告)日:2003-12-30

    申请号:US10347449

    申请日:2003-01-21

    IPC分类号: H03H964

    摘要: An elastic surface wave element including first and a second two-port surface acoustic wave filters and a one-port elastic surface acoustic wave resonator filter with a single inter-digital transducer is connected via bumps to electrodes formed on a housing by face down bonding techniques. The housing has an opening section in a ground terminal electrode in a part facing the one-port elastic surface acoustic wave resonator filter.

    摘要翻译: 包括第一和第二双端口声表面波滤波器的弹性表面波元件和具有单个数字式换能器的单端口弹性表面声波谐振器滤波器通过凸块连接到通过面朝下接合技术形成在壳体上的电极 。 壳体在面向单口弹性表面声波谐振器滤波器的部分中的接地端子电极中具有开口部分。

    Acoustic surface wave resonator device
    5.
    发明授权
    Acoustic surface wave resonator device 失效
    声表面波谐振器装置

    公开(公告)号:US4683394A

    公开(公告)日:1987-07-28

    申请号:US872638

    申请日:1986-06-10

    申请人: Masayoshi Koshino

    发明人: Masayoshi Koshino

    摘要: An acoustic surface wave resonator element has first and second interdigital electrodes consisting of pairs of opposed interleaving comb-shaped electrodes formed on one major surface of a piezoelectric substrate and arrayed along an acoustic wave propagation direction on the piezoelectric substrate, and acoustic surface wave reflectors sandwiching the first and second interdigital electrodes along the acoustic surface wave propagation direction. A base has the resonator element mounted thereon. First and second lead terminals are formed on the base and are electrically connected to the pair comb-shaped electrodes constituting the first interdigital electrode. A third lead terminal is electrically connected to one of the pair comb-shaped electrodes constituting the second interdigital electrode. The distance between the first and third lead terminals is substantially equal to that between the second and third lead terminals.

    摘要翻译: 声表面波谐振元件具有第一和第二叉指电极,其由形成在压电基片的一个主表面上并沿压电基片上的声波传播方向排列的相对的交错梳状电极对组成,声表面波反射器夹着 沿着声表面波传播方向的第一和第二叉指电极。 基座上安装有谐振元件。 第一引线端子和第二引线端子形成在基座上并与构成第一叉指电极的一对梳状电极电连接。 第三引线端子电连接到构成第二叉指电极的一对梳状电极中的一个。 第一和第三引线端子之间的距离基本上等于第二和第三引线端子之间的距离。