JPS59193612A - Piezoelectric resonator and its manufacture - Google Patents
Piezoelectric resonator and its manufactureInfo
- Publication number
- JPS59193612A JPS59193612A JP6894183A JP6894183A JPS59193612A JP S59193612 A JPS59193612 A JP S59193612A JP 6894183 A JP6894183 A JP 6894183A JP 6894183 A JP6894183 A JP 6894183A JP S59193612 A JPS59193612 A JP S59193612A
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric resonator
- spurious
- piezoelectric
- manufacture
- mass
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 230000010355 oscillation Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
【発明の詳細な説明】 この発明は圧電共振子およびその製造方法に関する。[Detailed description of the invention] The present invention relates to a piezoelectric resonator and a method for manufacturing the same.
拡がり振動モードなどの面積振動モードを用いる圧電共
振子では主に厚みに起因するスプリアス特性を良くする
必要がある。従来は、第1〜2図に示すように、正方形
状の圧電素子1の一辺寄りにテーバ2を設けたり、第3
〜4図に示すように、正方形状の圧電素子3の一辺寄り
に段差4を設けたりしていたが、圧電素子毎に研削した
りカットしたりしなければならず、大量生産に向く構造
ないし方法ではなかった。In a piezoelectric resonator that uses an area vibration mode such as a spreading vibration mode, it is necessary to improve spurious characteristics mainly caused by thickness. Conventionally, as shown in FIGS. 1 and 2, a taber 2 is provided near one side of a square piezoelectric element 1, or a third
~ As shown in Figure 4, a step 4 was provided near one side of the square piezoelectric element 3, but this required grinding and cutting for each piezoelectric element, making it a structure suitable for mass production. It wasn't the method.
この発明の目的は、スプリアス特性がすぐれた圧電共振
子を提供することである。An object of the present invention is to provide a piezoelectric resonator with excellent spurious characteristics.
また、この発明の目的は、スプリアス特性がすぐれた圧
電共振子を量産的に得ることができる方法を提供するこ
とである。Another object of the present invention is to provide a method for mass-producing piezoelectric resonators with excellent spurious characteristics.
以下にこの発明の実施例を図面を参照しながら説明する
。Embodiments of the present invention will be described below with reference to the drawings.
第5〜6図は一実施例圧電セラミック共振素子5を示し
、正方形状圧電板の側面が第6図に特に明確に示してい
るとおり平行四辺形になっている。5-6 show an exemplary piezoceramic resonant element 5 in which the sides of the square piezoelectric plate are parallelograms, as shown particularly clearly in FIG.
角度θは、スプリアスレスポンスのレベルと関連してお
り、適当な値に設定する。The angle θ is related to the level of spurious response, and is set to an appropriate value.
このような構造の圧電セラミック共振素子5は第7図に
示すようにして製造される。すなわち複数の正方形状圧
電板6(側面は第7図のように長方形状である〉を用意
し、斜め状態で厚み方向に積み重ねる。そして積み重ね
体の両端を図中矢印方向にカットする。すると、第5〜
6図に示ず共振子5が多数同時に出来上る。The piezoelectric ceramic resonant element 5 having such a structure is manufactured as shown in FIG. That is, a plurality of square piezoelectric plates 6 (the side surfaces are rectangular as shown in FIG. 7) are prepared and stacked diagonally in the thickness direction.Then, both ends of the stacked body are cut in the direction of the arrow in the figure.Then, 5th ~
6. Many resonators 5 (not shown in FIG. 6) are completed at the same time.
なお、実施例は主平面(電極を設けた面)が正方形であ
る圧電共振子であるが、本発明はこれ以外にも、たとえ
ば主平面が平行四辺形のものや長方形のものにも適用で
きる。Although the embodiment is a piezoelectric resonator in which the principal plane (the surface on which the electrodes are provided) is square, the present invention is also applicable to other piezoelectric resonators whose principal planes are parallelograms or rectangles, for example. .
このような構造だと、発振子として使った場合、スプリ
アス発振が起こらなくなり、またフィルタとして使った
場合、厚み振動モードのスプリアスレスポンスが小さく
なる。また、このような製造方法だとスプリアス特性の
よい圧電共振子を量産性よく得ることができる。With such a structure, when used as an oscillator, spurious oscillation will not occur, and when used as a filter, the spurious response in the thickness vibration mode will be reduced. Moreover, with this manufacturing method, piezoelectric resonators with good spurious characteristics can be obtained with good mass production.
第1図は従来例平面図、第2図は従来例側面図、第3図
は従来例平面図、第4図は従来例側面図、第5図は本発
明一実施例の平面図、第6図は同じく側面図、第7図は
同じく側面図である。
5は圧電セラミック共振素子、6は圧電板。
特 許 出 願 人
株式会社月田製作所Fig. 1 is a plan view of a conventional example, Fig. 2 is a side view of a conventional example, Fig. 3 is a plan view of a conventional example, Fig. 4 is a side view of a conventional example, and Fig. 5 is a plan view of an embodiment of the present invention. 6 is a side view, and FIG. 7 is a side view. 5 is a piezoelectric ceramic resonant element, and 6 is a piezoelectric plate. Patent applicant: Tsukita Seisakusho Co., Ltd.
Claims (2)
子。(1) A piezoelectric resonator whose side surfaces are parallelograms.
向に積み重ね 両端角部を除゛去することにより、角形圧電共振子の側
面を平行四辺形としたことを特徴とする圧電共振子の製
造方法。(2) A piezoelectric resonator characterized in that the sides of the rectangular piezoelectric resonator are made into parallelograms by sequentially tilting a plurality of rectangular piezoelectric resonator elements and stacking them in the thickness direction and removing the corner portions at both ends. Production method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6894183A JPS59193612A (en) | 1983-04-18 | 1983-04-18 | Piezoelectric resonator and its manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6894183A JPS59193612A (en) | 1983-04-18 | 1983-04-18 | Piezoelectric resonator and its manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59193612A true JPS59193612A (en) | 1984-11-02 |
JPH0320930B2 JPH0320930B2 (en) | 1991-03-20 |
Family
ID=13388193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6894183A Granted JPS59193612A (en) | 1983-04-18 | 1983-04-18 | Piezoelectric resonator and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59193612A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1648085A1 (en) * | 2003-07-18 | 2006-04-19 | Nihon Dempa Kogyo Co., Ltd. | Sc cut quartz oscillator |
JP2007196318A (en) * | 2006-01-26 | 2007-08-09 | Sumitomo Electric Hardmetal Corp | Long drill with guide |
JP2008254089A (en) * | 2007-04-02 | 2008-10-23 | Yunitakku Kk | Deep hole cutting device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50123268U (en) * | 1974-03-22 | 1975-10-08 | ||
JPS5494167U (en) * | 1977-12-16 | 1979-07-03 | ||
JPS56165413A (en) * | 1980-05-26 | 1981-12-19 | Toshiba Corp | Thickness slip oscillator |
-
1983
- 1983-04-18 JP JP6894183A patent/JPS59193612A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50123268U (en) * | 1974-03-22 | 1975-10-08 | ||
JPS5494167U (en) * | 1977-12-16 | 1979-07-03 | ||
JPS56165413A (en) * | 1980-05-26 | 1981-12-19 | Toshiba Corp | Thickness slip oscillator |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1648085A1 (en) * | 2003-07-18 | 2006-04-19 | Nihon Dempa Kogyo Co., Ltd. | Sc cut quartz oscillator |
JPWO2005008887A1 (en) * | 2003-07-18 | 2006-09-07 | 日本電波工業株式会社 | SC cut crystal unit |
EP1648085A4 (en) * | 2003-07-18 | 2008-09-24 | Nihon Dempa Kogyo Co | Sc cut quartz oscillator |
US7705524B2 (en) | 2003-07-18 | 2010-04-27 | Nihon Dempa Kogyo Co., Ltd. | SC cut crystal resonator |
JP4516021B2 (en) * | 2003-07-18 | 2010-08-04 | 日本電波工業株式会社 | SC cut crystal unit |
JP2007196318A (en) * | 2006-01-26 | 2007-08-09 | Sumitomo Electric Hardmetal Corp | Long drill with guide |
JP2008254089A (en) * | 2007-04-02 | 2008-10-23 | Yunitakku Kk | Deep hole cutting device |
Also Published As
Publication number | Publication date |
---|---|
JPH0320930B2 (en) | 1991-03-20 |
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