JP2007235480A - ラーメモード水晶振動子 - Google Patents
ラーメモード水晶振動子 Download PDFInfo
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- JP2007235480A JP2007235480A JP2006054107A JP2006054107A JP2007235480A JP 2007235480 A JP2007235480 A JP 2007235480A JP 2006054107 A JP2006054107 A JP 2006054107A JP 2006054107 A JP2006054107 A JP 2006054107A JP 2007235480 A JP2007235480 A JP 2007235480A
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- 239000013078 crystal Substances 0.000 title claims abstract description 54
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 239000010453 quartz Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 abstract 1
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
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Images
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- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
【解決手段】 課題を解決するために本発明は、矩形状の水晶素子に電荷を加えたときに、前記水晶素子の角部4点を節として、前記矩形状の長手方向に伸びたときには短手方向に伸縮し、かつ、前記矩形状の短手方向に伸びたときには長手方向に伸縮する輪郭振動の振動形態を生じる、LQ1Tカットあるいは、LQ2Tカットの水晶基板から成るラーメモード水晶振動子の保持構造において、前記水晶素子の振動領域の中心部分に向かって厚みを薄くした形状により課題を解決する。
【選択図】 図6
Description
圧電素板を基板にした水晶素子1で、その基板の辺比の一方の寸法を1(L)としたとき、もう一方の寸法が整数比(1(L)〜n)を満たす板の四隅に無振動部を有することにラーメモード振動子の特徴がある。図1に示すように正方形板の場合は四隅が節となって向かい合う2辺Aが正方形の中心方向に変位したときはもう一方の2辺Bが正方形の外方向に変位し、また向かい合う2辺Aが正方形の外方向に変位したときはもう一方の2辺Bが正方形の中心方向に変位する振動形態である。
2 無変位部(回転モーメントの無い無変位部)
3 保持部
4 受け部
5 励振電極
6 引き出し電極
7 容器体
8 振動領域
9 軟質接合用金属
Claims (2)
- 矩形状の水晶素子に電荷を加えたときに、前記水晶素子の角部4点を節として、前記矩形状の長手方向に伸びたときには短手方向に伸縮し、かつ、前記矩形状の短手方向に伸びたときには長手方向に伸縮する輪郭振動の振動形態を生じる、LQ1Tカットあるいは、LQ2Tカットの水晶基板から成るラーメモード水晶振動子において、
前記水晶素子の振動領域の中心部分に向かって厚みを薄くした形状を有することを特徴とするラーメモード水晶振動子。 - 請求項1記載の振動領域の中心部分に向かって厚みを薄くした形状とは、振動領域の少なくとも一面が凹レンズ状になっていることを特徴とするラーメモード水晶振動子。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006054107A JP4938321B2 (ja) | 2006-02-28 | 2006-02-28 | ラーメモード水晶振動子 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006054107A JP4938321B2 (ja) | 2006-02-28 | 2006-02-28 | ラーメモード水晶振動子 |
Publications (2)
Publication Number | Publication Date |
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JP2007235480A true JP2007235480A (ja) | 2007-09-13 |
JP4938321B2 JP4938321B2 (ja) | 2012-05-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006054107A Expired - Fee Related JP4938321B2 (ja) | 2006-02-28 | 2006-02-28 | ラーメモード水晶振動子 |
Country Status (1)
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JP (1) | JP4938321B2 (ja) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5069981A (ja) * | 1973-10-24 | 1975-06-11 | ||
JPS50150282A (ja) * | 1974-05-22 | 1975-12-02 | ||
JPS50155969A (ja) * | 1974-06-06 | 1975-12-16 | ||
JPS5117037B1 (ja) * | 1970-09-25 | 1976-05-29 | ||
JPS5390791A (en) * | 1977-01-19 | 1978-08-09 | Seiko Epson Corp | Miniature contour slide crystal vibrator |
JPS53149781A (en) * | 1977-06-01 | 1978-12-27 | Seiko Instr & Electronics Ltd | Piezo-electric vibrator |
JP2001313537A (ja) * | 2000-04-28 | 2001-11-09 | River Eletec Kk | 圧電素子とその製造方法 |
JP2003142979A (ja) * | 2001-10-31 | 2003-05-16 | River Eletec Kk | 水晶振動子及びその製造方法 |
JP2004336677A (ja) * | 2003-05-02 | 2004-11-25 | Yukio Yokoyama | 複合輪郭モード水晶振動子 |
-
2006
- 2006-02-28 JP JP2006054107A patent/JP4938321B2/ja not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5117037B1 (ja) * | 1970-09-25 | 1976-05-29 | ||
JPS5069981A (ja) * | 1973-10-24 | 1975-06-11 | ||
JPS50150282A (ja) * | 1974-05-22 | 1975-12-02 | ||
JPS50155969A (ja) * | 1974-06-06 | 1975-12-16 | ||
JPS5390791A (en) * | 1977-01-19 | 1978-08-09 | Seiko Epson Corp | Miniature contour slide crystal vibrator |
JPS53149781A (en) * | 1977-06-01 | 1978-12-27 | Seiko Instr & Electronics Ltd | Piezo-electric vibrator |
JP2001313537A (ja) * | 2000-04-28 | 2001-11-09 | River Eletec Kk | 圧電素子とその製造方法 |
JP2003142979A (ja) * | 2001-10-31 | 2003-05-16 | River Eletec Kk | 水晶振動子及びその製造方法 |
JP2004336677A (ja) * | 2003-05-02 | 2004-11-25 | Yukio Yokoyama | 複合輪郭モード水晶振動子 |
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