公开(公告)号：US20110221546A1

公开(公告)日：2011-09-15

申请号：US13040450

申请日：2011-03-04

申请人： Toru YAMAJI ,  Koji KAWAKITA ,  Tetsuya TSURUNARI ,  Joji FUJIWARA ,  Toru JIBU

发明人： Toru YAMAJI ,  Koji KAWAKITA ,  Tetsuya TSURUNARI ,  Joji FUJIWARA ,  Toru JIBU

IPC分类号： H03H9/64

CPC分类号： H03H9/1071 ,  H03H9/0547

摘要： An elastic wave device includes a piezoelectric substrate, an IDT electrode disposed on the piezoelectric substrate, an internal electrode disposed on the piezoelectric substrate and connected to the IDT electrode, a support pillar disposed on the piezoelectric substrate and provided around the IDT electrode, a top panel provided on the support pillar to cover a space above the IDT electrode, an insulation protector provided to cover the support pillar and the top panel, an external electrode disposed on the insulation protector, a conductor pattern disposed on the insulation protector in order to obtain inductance, and a connection electrode provided through the insulation protector, to connect the external electrode and the internal electrode to each other.

摘要翻译： 弹性波装置包括压电基板，设置在压电基板上的IDT电极，设置在压电基板上并连接到IDT电极的内部电极，设置在压电基板上并设置在IDT电极周围的支撑柱，顶部 设置在支撑柱上以覆盖IDT电极上方的空间的面板，设置成覆盖支撑柱和顶板的绝缘保护器，设置在绝缘保护器上的外部电极，设置在绝缘保护器上的导体图案，以获得 电感和通过绝缘保护器提供的连接电极，以将外部电极和内部电极彼此连接。

公开(公告)号：US20110001578A1

公开(公告)日：2011-01-06

申请号：US12827091

申请日：2010-06-30

申请人： Toru JIBU ,  Shoji Okamoto ,  Yosuke Hamaoka ,  Hiroyuki Nakamura

发明人： Toru JIBU ,  Shoji Okamoto ,  Yosuke Hamaoka ,  Hiroyuki Nakamura

IPC分类号： H03H9/64

CPC分类号： H03H9/02992 ,  H03H9/725

摘要： A SAW filter includes a piezoelectric body, an IDT electrode on the piezoelectric body, and signal wiring electrically connected to the IDT electrode. The signal wiring has a thickness not less than a skin depth specified based on the frequency of a signal passing through the signal wiring and the electrical conductivity of the signal wiring. As a result, the signal wiring has low propagation loss of the signal passing through it, so that the SAW filter has excellent transmission characteristics.

摘要翻译： SAW滤波器包括压电体，压电体上的IDT电极和与IDT电极电连接的信号线。 信号布线的厚度不小于根据通过信号布线的信号的频率和信号布线的导电率而指定的皮肤深度。 结果，信号线路的信号传播损耗低，SAW滤波器具有优异的传输特性。