发明申请
US20070188047A1 LAMB WAVE TYPE FREQUENCY DEVICE AND METHOD THEREOF 失效
拉姆波型频率装置及其方法

  • 专利标题: LAMB WAVE TYPE FREQUENCY DEVICE AND METHOD THEREOF
  • 专利标题(中): 拉姆波型频率装置及其方法
  • 申请号: US11668220
    申请日: 2007-01-29
  • 公开(公告)号: US20070188047A1
    公开(公告)日: 2007-08-16
  • 发明人: Satoru Tanaka
  • 申请人: Satoru Tanaka
  • 申请人地址: JP Tokyo
  • 专利权人: SEIKO EPSON CORPORATION
  • 当前专利权人: SEIKO EPSON CORPORATION
  • 当前专利权人地址: JP Tokyo
  • 优先权: JP2006-039297 20060216; JP2006-209507 20060801
  • 主分类号: H03H9/25
  • IPC分类号: H03H9/25
LAMB WAVE TYPE FREQUENCY DEVICE AND METHOD THEREOF
摘要:
A Lamb wave type high frequency device comprises: a piezoelectric substrate; an interdigital transducer (IDT) electrode formed on a first main surface of the piezoelectric substrates a reinforcing substrate connected to a second main surface of the piezoelectric substrate; a space portion formed in one of the piezoelectric substrate and the reinforcing substrate, an area of the space portion being larger than a region in which a Lamb wave is propagated; and a connecting surface formed in a periphery of the space portion.
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