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    • 4. 发明授权
    • Surface acoustic wave sensor
    • 表面声波传感器
    • US08841817B2
    • 2014-09-23
    • US13557378
    • 2012-07-25
    • Hideaki YamadaKazuhiko Kano
    • Hideaki YamadaKazuhiko Kano
    • H03H9/02H01L41/113H03H9/05G01N29/24G01N29/38G01N29/42
    • H01L41/1132G01N29/2462G01N29/38G01N29/42G01N2291/0423H03H9/02622H03H9/058H03H9/0585
    • In a SAW device, a first area placed at a surface of a measurement subject directly under a propagation portion is fixed to the measurement subject, and a second area placed at the surface of the measurement subject directly under both a drive electrode and a reflector is not fixed to the measurement subject. When a strain is generated in the measurement subject, a strain is generated only in the propagation portion, and a phase change is generated in a surface acoustic wave reflected by the reflector. Because the phase change is hardly affected by a temperature change, the strain of the measurement subject can be measured based on the phase change. Because a resonant frequency of the SAW device is changed by the temperature change, but is not affected by the strain of the measurement subject, a temperature can be measured based on a resonant frequency change.
    • 在SAW器件中,将直接位于传播部分的测量对象的表面的第一区域固定在测定对象上,在测量对象的表面直接位于驱动电极和反射体的下方的第二区域是 没有固定在测量对象上。 当在测量对象中产生应变时,仅在传播部分中产生应变,并且在由反射器反射的表面声波中产生相变。 由于相变几乎不受温度变化的影响,所以测量对象的应变可以基于相位变化来测量。 由于SAW器件的谐振频率由于温度变化而变化,而是不受测量对象的应变的影响,所以可以基于谐振频率变化来测量温度。
    • 6. 发明申请
    • Spherical surface acoustic wave apparatus
    • 球面声波装置
    • US20110148250A1
    • 2011-06-23
    • US12929925
    • 2011-02-24
    • Noritaka Nakaso
    • Noritaka Nakaso
    • H01L41/04H01L41/047H01L41/08
    • H03H3/08H03H9/02614H03H9/058
    • A spherical surface acoustic wave apparatus includes a surface acoustic wave propagation substrate which has a surface acoustic wave circulation path on an outer surface thereof. The path is configured to be annular and continuous using at least a part of a spherical shape, and is able to be excited to generate surface acoustic wave and allows the excited surface acoustic wave to propagate and circulate therein in its annular and continuous direction. The apparatus further includes a substrate support which supports a region of the outer surface of the substrate, the region excluding the circulation path, and a support for a surface acoustic wave excitation/detection unit, which supports an elastic member supporting the excitation/detection unit, which makes the excitation/detection unit being in contact with the circulation path of the outer surface of the substrate through the elastic member, and which elastically deforms the elastic member.
    • 球面声波装置包括在其外表面上具有表面声波循环路径的声表面波传播基板。 该路径被构造为使用至少一部分球形的环形和连续的,并且能够被激发以产生表面声波,并且允许激发的表面声波在其环形和连续方向上传播和循环。 该装置还包括支撑基板的外表面的区域,不包括循环路径的区域的基板支撑件和支撑弹性构件的表面声波激励/检测单元的支撑件,该弹性构件支撑激励/检测单元 ,使得激发/检测单元通过弹性构件与基板的外表面的循环路径接触,并且弹性构件弹性变形。
    • 8. 发明授权
    • Acoustic surface wave device
    • 声表面波装置
    • US6037698A
    • 2000-03-14
    • US615144
    • 1996-03-14
    • Masanori UedaYoshiro FujiwaraTakumi Kooriike
    • Masanori UedaYoshiro FujiwaraTakumi Kooriike
    • H03H9/25H03H9/05H03H9/64H03H9/10
    • H03H9/1071H03H9/058H03H9/64H01L2224/48091H01L2224/48227H01L2924/16195
    • This invention relates to an acoustic surface wave device suitably used in a high-frequency circuit, in which high attenuation characteristics are provided.The present invention includes an acoustic surface wave element, a ceramic package having a ceramic substrate of a multi-layer structure, the ceramic substrate having a die-attach portion on which the acoustic surface wave element is mounted, the ceramic package having an input terminal and an output terminal connected to the acoustic surface wave element, the ceramic package having an opening located above the ceramic substrate, each of the input terminal and the output terminal having a ground terminal, and a metallic cap sealing the opening of the ceramic package. The metallic cap is electrically connected to one of the ground terminal of the input terminal and the ground terminal of the output terminal.
    • 本发明涉及适用于提供高衰减特性的高频电路中的声表面波装置。 本发明包括声表面波元件,具有多层结构的陶瓷基片的陶瓷封装体,陶瓷基片具有安装声表面波元件的管芯附着部分,陶瓷封装具有输入端子 以及连接到所述声表面波元件的输出端子,所述陶瓷封装具有位于所述陶瓷基板上方的开口,所述输入端子和所述输出端子中的每一个具有接地端子,以及密封所述陶瓷封装的开口的金属盖。 金属盖电连接到输入端子的接地端子和输出端子的接地端子之间。