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    • 10. 发明申请
    • Electronic component and electronic apparatus using this electronic component
    • 使用该电子部件的电子部件和电子设备
    • US20060158800A1
    • 2006-07-20
    • US10540399
    • 2003-12-24
    • Ryouichi TakayamaHidekazu NakanishiTakashi InoueTetsuo KawasakiKouji HasegawaYukio Iwasaki
    • Ryouichi TakayamaHidekazu NakanishiTakashi InoueTetsuo KawasakiKouji HasegawaYukio Iwasaki
    • H02H9/00
    • H03H9/145H03H3/10H03H9/02559H03H9/02834H03H9/02929H03H9/02984H03H9/25H03H9/6496
    • The present invention relates to an electronic part, and its object is to improve temperature characteristics and electrical properties. In order to attain the object, the electronic part according to the present invention includes a substrate (1), a comb-type electrode (2) that is disposed on the upper surface of the substrate (1), and a protective film (4) that covers the comb-type electrode (2) and has an uneven shape at its top surface. If the pitch width of one pitch in the uneven shape of the protective film (4) is L, the width of one pitch of a convex portion (4a) of the unevenness in the uneven shape of the protective film (4) is L1, the width of one pitch of a concave portion (4b) thereof is L2, the pitch width of one pitch of the comb-type electrode (2) is p, the width of one of electrode fingers which form the comb-type electrode (2) is p1 and the width between the electrode fingers is p2, then each parameter is set so that the following expressions are satisfied, L1≦p1 and L2≧p2 (herein, the correlations of L≈p, p1+p2=p and L1+L2=L are satisfied).
    • 电子部件技术领域本发明涉及电子部件,其目的在于提高温度特性和电气性能。 为了实现该目的,根据本发明的电子部件包括基板(1),设置在基板(1)的上表面上的梳型电极(2)和保护膜(4) ),其覆盖梳状电极(2),并且在其顶面具有不均匀的形状。 如果保护膜(4)的凹凸形状中的一个间距的间距宽度为L,则保护膜(4)的凹凸形状的凹凸的凸部(4a)的一个节距的宽度为L 如图1所示,凹部(4b)的一个间距的宽度为L 2,梳型电极(2)的一个间距的间距宽度为p,形成梳状电极 型电极(2)为p 1,电极指之间的宽度为p 2,则每个参数被设定为满足以下表达式:L 1 <= p 1和L 2> = p 2(这里,相关性 L pp,p 1 + p 2 = p,L 1 + L 2 = L)。