JP4665242B2 - 輪郭振動圧電デバイス - Google Patents
輪郭振動圧電デバイス Download PDFInfo
- Publication number
- JP4665242B2 JP4665242B2 JP2005015206A JP2005015206A JP4665242B2 JP 4665242 B2 JP4665242 B2 JP 4665242B2 JP 2005015206 A JP2005015206 A JP 2005015206A JP 2005015206 A JP2005015206 A JP 2005015206A JP 4665242 B2 JP4665242 B2 JP 4665242B2
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- JP
- Japan
- Prior art keywords
- vibration
- contour
- crystal
- frequency
- node
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
22 水晶板(圧電基板)
22a〜22d 節部
23a〜23d 脚部
24 支持部
25a,25b 電極端子
26a〜26d 励振電極
27 凸部(質量付加部)
37 凹部(質量減少部)
Claims (3)
- 薄板状の圧電基板と、該圧電基板上に配列形成される複数の四角形状の励振電極とを備え、前記各励振電極が小振動部となり、この小振動部の角部近傍が振動の節部となって、圧電基板に輪郭モードの主振動を生じさせる圧電デバイスにおいて、
前記圧電基板は、隣接する各小振動部の節部に外周側面の一部を外側に突出させた凸部を設け、前記主振動以外の不要振動を低減させたことを特徴とする輪郭振動圧電デバイス。 - 前記凸部が、半円形状あるいは多角形状に形成される請求項1記載の輪郭振動圧電デバイス。
- 前記圧電基板が、ラーメ型の振動モードを備えた請求項1記載の輪郭振動圧電デバイス。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005015206A JP4665242B2 (ja) | 2005-01-24 | 2005-01-24 | 輪郭振動圧電デバイス |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005015206A JP4665242B2 (ja) | 2005-01-24 | 2005-01-24 | 輪郭振動圧電デバイス |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006203742A JP2006203742A (ja) | 2006-08-03 |
JP4665242B2 true JP4665242B2 (ja) | 2011-04-06 |
Family
ID=36961322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005015206A Expired - Fee Related JP4665242B2 (ja) | 2005-01-24 | 2005-01-24 | 輪郭振動圧電デバイス |
Country Status (1)
Country | Link |
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JP (1) | JP4665242B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106797208B (zh) * | 2015-01-16 | 2020-03-20 | 株式会社村田制作所 | 谐振器 |
WO2016158045A1 (ja) * | 2015-03-31 | 2016-10-06 | 株式会社村田製作所 | 共振子 |
US20240186976A1 (en) * | 2022-12-02 | 2024-06-06 | Panasonic Intellectual Property Management Co., Ltd. | Single anchor resonators |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004242256A (ja) * | 2003-02-10 | 2004-08-26 | River Eletec Kk | 水晶振動子 |
JP2005094727A (ja) * | 2002-11-11 | 2005-04-07 | Piedekku Gijutsu Kenkyusho:Kk | 水晶振動子、水晶ユニット、水晶発振器とそれらの製造方法 |
JP2006186462A (ja) * | 2004-12-27 | 2006-07-13 | Kyocera Kinseki Corp | 水晶振動子 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5291680A (en) * | 1976-01-29 | 1977-08-02 | Seiko Instr & Electronics Ltd | Profile slide vibrator |
JPS6217232U (ja) * | 1985-07-15 | 1987-02-02 | ||
JPH01126009A (ja) * | 1987-11-11 | 1989-05-18 | Seiko Keiyo Kogyo Kk | 小型水晶振動子 |
-
2005
- 2005-01-24 JP JP2005015206A patent/JP4665242B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005094727A (ja) * | 2002-11-11 | 2005-04-07 | Piedekku Gijutsu Kenkyusho:Kk | 水晶振動子、水晶ユニット、水晶発振器とそれらの製造方法 |
JP2004242256A (ja) * | 2003-02-10 | 2004-08-26 | River Eletec Kk | 水晶振動子 |
JP2006186462A (ja) * | 2004-12-27 | 2006-07-13 | Kyocera Kinseki Corp | 水晶振動子 |
Also Published As
Publication number | Publication date |
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JP2006203742A (ja) | 2006-08-03 |
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