会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Electrode edge wave patterns for piezoelectric resonator
    • 压电谐振器的电极边缘波形图
    • US5903087A
    • 1999-05-11
    • US920442
    • 1997-08-29
    • John E. MattsonJames F. CarubaCharles ZimnickiBeverly A. Carroll
    • John E. MattsonJames F. CarubaCharles ZimnickiBeverly A. Carroll
    • H01L41/09H03H9/13H03H9/19H01L41/08
    • H03H9/132
    • A resonator (104) including a piezoelectric plate (102) with an electrode (108) having a random pattern (100) along a portion of an edge of the electrode (108). The random pattern (100) dampens or destructively interferes with undesirable and inharmonic vibrational modes. For example, a rectangular AT-cut quartz resonator, which vibrates in a thickness-shear mode may also possess undesirable flexure and face-shear modes. These modes not only present undesirable spurious frequencies, they also change over temperature, disturbing a frequency-ternperature response of the resonator. The random pattern (100) causes diffuse and/or specular scattering to reduce these undesirable modes, providing a more uniform frequency-temperature response which is beneficial in temperature compensated crystal oscillator applications.
    • 一种谐振器(104),包括具有电极(108)的压电板(102),所述电极具有沿所述电极(108)的边缘部分的随机图案(100)。 随机图案(100)抑制或破坏性地干扰不期望的和不协调的振动模式。 例如,以厚度剪切模式振动的矩形AT切割石英谐振器也可能具有不期望的弯曲和面剪切模式。 这些模式不仅存在不期望的杂散频率,它们也随温度变化,从而扰乱谐振器的频率 - 温度响应。 随机图案(100)引起扩散和/或镜面散射以减少这些不期望的模式,提供更均匀的频率 - 温度响应,这在温度补偿晶体振荡器应用中是有益的。