JPH1022735A - Surface mount package and manufacture of piezoelectric oscillator using it - Google Patents

Surface mount package and manufacture of piezoelectric oscillator using it

Info

Publication number
JPH1022735A
JPH1022735A JP21222396A JP21222396A JPH1022735A JP H1022735 A JPH1022735 A JP H1022735A JP 21222396 A JP21222396 A JP 21222396A JP 21222396 A JP21222396 A JP 21222396A JP H1022735 A JPH1022735 A JP H1022735A
Authority
JP
Japan
Prior art keywords
adjustment
bottom wall
ceramic base
chip
oscillator
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
Application number
JP21222396A
Other languages
Japanese (ja)
Other versions
JP3276136B2 (en
Inventor
Hiroshi Yoshida
浩 吉田
Kozo Ono
公三 小野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Dempa Kogyo Co Ltd
Original Assignee
Nihon Dempa Kogyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nihon Dempa Kogyo Co Ltd filed Critical Nihon Dempa Kogyo Co Ltd
Priority to JP21222396A priority Critical patent/JP3276136B2/en
Publication of JPH1022735A publication Critical patent/JPH1022735A/en
Application granted granted Critical
Publication of JP3276136B2 publication Critical patent/JP3276136B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a manufacture of a piezoelectric oscillator adjustable after sealing of a piezoelectric chip and having an adjustment terminal removed after the adjustment in which the sealing is ensured. SOLUTION: In the surface mount container 3 composed of a ceramic base 1 formed by firing by laminating a bottom wall 8 on which a circuit pattern is formed and terminals for surface mount are exposed and a tours side wall 9 provided to an outer periphery of the wall 8 and containing the piezoelectric chip, an adjustment auxiliary section 18 being an extension of the bottom wall 8 and the tours side all 9 at one end of the ceramic based 1 and separated from the ceramic base main body is provided and adjustment terminals connected to the circuit pattern are formed to the outer surface. Moreover, a piezoelectric chip 4 and an IC chip 5 connected electrically to the circuit pattern are contained in the ceramic base 1 and after at least the piezoelectric chip is sealed and enclosed, the adjustment terminals are used to control a storage circuit in the IC chip 5 and the adjustment auxiliary section 18 is disconnected and the piezoelectric oscillator is manufactured.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、表面実装用容器及びこ
れを用いた圧電発振器の製造方法を利用分野とし、特に
圧電片及びICチップを密閉収容した後、発振特性を調
整し得て、しかも生産性に優れた表面実装用容器に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface mountable container and a method for manufacturing a piezoelectric oscillator using the same, and more particularly to a method for adjusting oscillation characteristics after hermetically containing a piezoelectric piece and an IC chip. In addition, the present invention relates to a surface mounting container excellent in productivity.

【0002】[0002]

【従来の技術】[Prior art]

(発明の背景)圧電発振器特に水晶発振器は、周波数安
定度が高いことから、各種の電子機器に周波数あるいは
時間の基準源として広く用いられている。さらに、温度
に対して周波数安定度を高めた、温度補償型の水晶発振
器(温度補償発振器とする)は、移動体通信等の動的環
境の下で使用される機器に重用されている。これらの一
つに、デジタル的情報に基づき、周波数温度特性(以下
温度特性とする)を補償した温度補償発振器がある。ま
た、小型化及び自動装着の点から、表面実装型の温度補
償発振器(温度補償面実装発振器とする)として、しか
も品質を維持して量産に適したものが、望まれている。
BACKGROUND OF THE INVENTION Piezoelectric oscillators, particularly crystal oscillators, are widely used as a frequency or time reference source in various electronic devices because of their high frequency stability. Further, a temperature-compensated crystal oscillator (hereinafter, referred to as a temperature-compensated oscillator) having a frequency stability improved with respect to temperature is frequently used in equipment used in a dynamic environment such as mobile communication. One of these is a temperature-compensated oscillator that compensates for frequency-temperature characteristics (hereinafter referred to as temperature characteristics) based on digital information. Further, in view of miniaturization and automatic mounting, a surface-mount type temperature-compensated oscillator (referred to as a temperature-compensated surface-mounted oscillator) that is suitable for mass production while maintaining quality is desired.

【0003】(従来技術の一例)第7図及び第8図は、
この種の一従来例を説明する温度補償面実装発振器の図
である。なお、第7図は分解図、第8図は断面図であ
る。温度補償面実装発振器は、セラミックベース1とカ
バー2からなる表面実装用容器3に水晶片(水晶振動
子)4とICチップ5及び可変容量ダイオード6等の回
路素子7を収容してなる。
FIGS. 7 and 8 show an example of the prior art.
FIG. 9 is a diagram of a temperature-compensated surface-mounted oscillator illustrating a conventional example of this type. FIG. 7 is an exploded view, and FIG. 8 is a sectional view. The temperature-compensated surface-mount oscillator includes a crystal chip (crystal oscillator) 4, an IC chip 5, and circuit elements 7 such as a variable capacitance diode 6 housed in a surface mounting container 3 including a ceramic base 1 and a cover 2.

【0004】セラミックベース1は、底壁8と環状側壁
9からなる積層体を焼成して形成される。底壁8には図
示しない回路パターンが形成され、外表面に実装用端子
10が露出する。環状側壁9は、この例では2層(9
a、9b)として、一端側に段部11を形成する。段部
11には電極(未図示)が形成され、底壁8上の回路パ
ターンに接続する。カバー2は、例えばシーム溶接によ
り接合される金属板からなる。なお、シーム溶接の場
合、セラミックベース1の上面には金属リングが設けら
れるが、図では省略してある。また、通常では、底壁8
と環状側壁9とをシート状として積層して焼成した後、
個々のセラミックベースに1に分割される。
[0004] The ceramic base 1 is formed by firing a laminate comprising a bottom wall 8 and an annular side wall 9. A circuit pattern (not shown) is formed on the bottom wall 8, and the mounting terminals 10 are exposed on the outer surface. The annular side wall 9 has two layers (9
a, 9b), a step 11 is formed at one end. An electrode (not shown) is formed on the step portion 11 and is connected to a circuit pattern on the bottom wall 8. The cover 2 is made of a metal plate joined by, for example, seam welding. In the case of seam welding, a metal ring is provided on the upper surface of the ceramic base 1, but is omitted in the figure. Also, usually, the bottom wall 8
And the annular side wall 9 are laminated and fired in a sheet shape,
Divided into individual ceramic bases.

【0005】水晶振動子4はATカットとした矩形状と
し、両主面の励振電極12から、一端側両部に引出電極
13を延出する。そして、一端側両部をセラミックベー
ス1の段部11に電気的・機械的に接続して保持され
る。なお、ATカットとした水晶振動子4の温度特性は
三次曲線となる(第9図参照)。
[0005] The crystal unit 4 has an AT-cut rectangular shape, and extraction electrodes 13 extend from the excitation electrodes 12 on both main surfaces to both ends on one end side. Then, both ends on one end side are electrically and mechanically connected to and held by the step 11 of the ceramic base 1. Note that the temperature characteristic of the crystal unit 4 with the AT cut is a cubic curve (see FIG. 9).

【0006】ICチップ5は、第10図に温度補償発振
回路の一例を示したように、水晶振動子4とともに例え
ばコルピッツ発振回路を構成するトランジスタ、コンデ
ンサ及び抵抗等が集積化されるとともに、記憶回路(い
わゆるメモリ)を含む補償機構を有する。補償機構は、
記憶回路に周波数温度特性を補償するデータを書き込ま
れ、動作時にデータに基づく制御電圧を可変容量ダイオ
ード6に印可する。なお、一点鎖線部内がICチップ内
に集積された回路である。
As shown in FIG. 10, the IC chip 5 integrates, for example, a transistor, a capacitor and a resistor constituting a Colpitts oscillating circuit together with the quartz oscillator 4 and stores the temperature, as shown in FIG. It has a compensation mechanism including a circuit (so-called memory). The compensation mechanism is
Data for compensating the frequency temperature characteristic is written in the storage circuit, and a control voltage based on the data is applied to the variable capacitance diode 6 during operation. The portion enclosed by the dashed line is a circuit integrated in the IC chip.

【0007】可変容量ダイオード6は、制御電圧により
その容量値を変化させ、すなわち水晶振動子から見た発
振回路の負荷容量を変化させ、温度特性を補償する。
The variable capacitance diode 6 changes its capacitance value by a control voltage, that is, changes the load capacitance of the oscillation circuit viewed from the crystal unit, thereby compensating the temperature characteristics.

【0008】このようなものでは、温度補償動作にあた
って、温度に応答した補償データを予め記憶回路に書き
込む必要がある。しかし、水晶発振器の温度特性は、そ
れぞれ毎に微細に異なるので、補償データも個々に測定
して書き込まなければならない。また、水晶振動子4は
密閉前後において、特性変化を来すことから、特性が厳
格になるほど、水晶振動子4を密閉した状態で、温度特
性を幾度となく測定し、最良となる補償データを記憶回
路に書き込む必要がある。この場合、回路パターン中の
ICチップ(記憶回路)に接続した書き込み用の端子を
設ける必要がある。しかし、表面実装用容器3は、小型
で複数の端子が露出していることから、書き込み用の調
整端子を直接設けることには限界があった。
In such a configuration, it is necessary to previously write compensation data responsive to temperature into a storage circuit in the temperature compensation operation. However, since the temperature characteristics of the crystal oscillator differ minutely from one another, compensation data must be individually measured and written. In addition, since the crystal oscillator 4 undergoes characteristic changes before and after sealing, the temperature characteristics are repeatedly measured with the crystal oscillator 4 hermetically sealed in order to obtain the best compensation data as the characteristics become stricter. It is necessary to write to the storage circuit. In this case, it is necessary to provide a writing terminal connected to the IC chip (memory circuit) in the circuit pattern. However, since the surface mounting container 3 is small and a plurality of terminals are exposed, there is a limit in directly providing an adjustment terminal for writing.

【0009】このようなことから、例えば特開平1−5
7805号、特開昭60−130201号及び実開昭5
9−11463号公報等で知られるように、記憶回路の
書き込み端子を表面実装容器外に延出することが考えら
れた。すなわち、第11図に示したように、セラミック
ベース1の底壁8を延出して調整用底壁12を設けると
ともに、ICチップ5の記憶回路に接続した回路パター
ンを延出して書き込み用の調整用端子13を形成する。
そして、水晶振動子4及び回路素子7を収容して密閉し
た後、調整用端子13により、補償データの書き込み及
び測定を繰り返し、最適な補償データを書き込んだ後、
図示しない分割線に沿って調整用底壁12を切り離し
て、温度補償面実装発振器を製造する、ことが考えられ
た。
For this reason, for example, Japanese Patent Laid-Open No.
7805, JP-A-60-130201 and Shokaisho 5
As known in Japanese Patent Application Laid-Open No. 9-11463 and the like, it has been considered to extend the write terminal of the storage circuit outside the surface mount container. That is, as shown in FIG. 11, the bottom wall 8 of the ceramic base 1 is extended to provide the adjusting bottom wall 12, and the circuit pattern connected to the storage circuit of the IC chip 5 is extended to adjust the writing. Terminal 13 is formed.
After accommodating and sealing the crystal unit 4 and the circuit element 7, the adjustment terminal 13 repeats writing and measurement of compensation data, and after writing optimal compensation data,
It has been considered that the bottom wall 12 for adjustment is cut off along a dividing line (not shown) to manufacture a temperature-compensated surface mount oscillator.

【0010】[0010]

【発明が解決しようとする課題】[Problems to be solved by the invention]

(従来技術の問題点)しかしながら、上記構成の温度補
償面実装発振器では、セラミックベース1の底壁8を延
出した調整用底壁12に起因して次の問題があった。す
なわち、前述したように、いずれもシート状とした底壁
(シート状底壁14)と環状側壁(シート状側壁15)
を積層して焼成した後、実線で示す分割ラインにって個
々のセラミックベース1に分割される(第12図)。
(Problems of the Prior Art) However, the temperature-compensated surface-mounted oscillator having the above configuration has the following problem due to the adjustment bottom wall 12 extending from the bottom wall 8 of the ceramic base 1. That is, as described above, the bottom wall (sheet-like bottom wall 14) and the annular side wall (sheet-like side wall 15) each having a sheet shape are used.
Are laminated and fired, and then divided into individual ceramic bases 1 along dividing lines indicated by solid lines (FIG. 12).

【0011】したがって、調整用底壁12を形成する場
合は、シート状底壁14に対して、シート状側壁15は
水晶片4及び回路素子7の素子収容部16以外に、調整
用端子13を露出させる、調整用開口部17を形成され
る。なお、図では段部11を省略してある。また、この
例ではこ調整用底壁12の外周に枠が残る。
Therefore, when the adjusting bottom wall 12 is formed, the adjusting terminal 13 is provided on the sheet-like bottom wall 14 in addition to the crystal blank 4 and the element housing 16 of the circuit element 7. An adjustment opening 17 to be exposed is formed. In the figure, the step 11 is omitted. In this example, a frame remains on the outer periphery of the bottom wall 12 for adjustment.

【0012】このように調整用開口部17を設けた場合
には、開口部が増加してシート状側壁15の強度は低下
する。したがって、シート状底壁14に積層して焼成し
た場合、バインダの飛散に伴う縮小により、第13図
(断面図)に模式的に示したように、シート状側壁15
への、歪みや反りが大きくなる。
When the adjustment opening 17 is provided as described above, the number of openings increases and the strength of the sheet-like side wall 15 decreases. Therefore, when laminated on the sheet-like bottom wall 14 and fired, the sheet-like side wall 15 is schematically shown in FIG.
, Distortion and warpage increase.

【0013】このようなことから、セラミックベース1
の反りにより、カバー2を封止する際、充分な密閉を困
難として、特に水晶振動子の特性を劣化させる。また、
反りのないものを選択しなければならず、歩留まりを悪
化させて生産性を低下させる問題があった。
[0013] From the above, the ceramic base 1
When the cover 2 is sealed, sufficient sealing is difficult when sealing the cover 2, and in particular, the characteristics of the crystal unit are deteriorated. Also,
It is necessary to select a material having no warp, and there is a problem that yield is deteriorated and productivity is reduced.

【0014】(発明の目的)本発明は、調整後に分離さ
れる調整用端子を有して生産性及び品質を良好としたセ
ラミックベースを具備した表面実装用容器及びこれを用
いた圧電発振器の製造方法を提供することを目的とす
る。
(Object of the Invention) The present invention provides a surface mount container having a ceramic base which has an adjusting terminal which is separated after adjustment and has improved productivity and quality, and manufacture of a piezoelectric oscillator using the same. The aim is to provide a method.

【0015】[0015]

【問題を解決するための手段】本発明は、回路をパター
ンを形成された底壁と環状側壁とからなるセラミックベ
ースの一端側を一体的に延長して分離可能な調整用補助
部を設け、調整用補助部の外表面に前記回路パターンに
接続する調整用端子を形成したことを基本的な解決手段
とする。
According to the present invention, a circuit is provided with an auxiliary adjusting portion which can be separated by integrally extending one end of a ceramic base comprising a patterned bottom wall and an annular side wall, A basic solution is to form an adjustment terminal connected to the circuit pattern on the outer surface of the adjustment auxiliary portion.

【0016】[0016]

【作用】本発明は、セラミックベースの一端側を一体的
に延長して調整用補助部を設けたので、セラミックベー
スをシート状として焼成する際、その強度を高める作用
がある。以下、本発明の一実施例を説明する。
According to the present invention, since one end side of the ceramic base is integrally extended to provide the adjusting auxiliary portion, when the ceramic base is fired into a sheet shape, the strength is enhanced. Hereinafter, an embodiment of the present invention will be described.

【0017】[0017]

【実施例】【Example】

(表面実装用容器の説明)第1図は本発明の一実施例を
説明する表面実装用容器の図で、温度補償面実装発振器
に適用した場合の分解図である。なお、前従来例図と同
一部分には同番号を付与してその説明は簡略する。表面
実装用容器3は、セラミックベース1とカバー2からな
る。セラミックベース1は、前述同様に底壁8と環状側
壁9(ab)を積層して、焼成により形成される。そし
て、上述したように、セラミックベース1の一端側に
は、一端側を一体的に延長して分離可能とした調整用補
助部18を設けてなる。なお、調整用補助部18を形成
する底壁を調整用底壁19とし、同環状側壁を調整用側
壁20(ab)とする。
(Explanation of Surface Mounted Container) FIG. 1 is a diagram of a surface mounted container for explaining an embodiment of the present invention, and is an exploded view when applied to a temperature compensation surface mounted oscillator. The same parts as those in the prior art are denoted by the same reference numerals, and description thereof will be simplified. The surface mounting container 3 includes a ceramic base 1 and a cover 2. The ceramic base 1 is formed by stacking the bottom wall 8 and the annular side wall 9 (ab) in the same manner as described above, and by firing. As described above, the ceramic base 1 is provided at one end thereof with an adjusting auxiliary portion 18 which is integrally extended at one end so as to be separable. The bottom wall forming the auxiliary adjustment portion 18 is referred to as an adjustment bottom wall 19, and the annular side wall is referred to as an adjustment side wall 20 (ab).

【0018】調整用底壁19には、底壁8の内表面に形
成された前述した回路パターン(未図示)に接続する導
電路21が形成される。そして、電極孔22(所謂スル
ーホール)により外表面(裏面)に延出して調整用端子
23を形成する。
On the bottom wall 19 for adjustment, there are formed conductive paths 21 connected to the above-mentioned circuit pattern (not shown) formed on the inner surface of the bottom wall 8. Then, the adjustment terminal 23 is formed by extending to the outer surface (back surface) through the electrode hole 22 (so-called through hole).

【0019】このようなセラミックベース1であれば、
第3図に示したように、シート状底壁14に対して、シ
ート状側壁15は素子収容部16のみを開放とし、前述
のように調整用底壁19の表面を露出する必要がない。
そして、一端側を一体的に延長して調整用補助部18を
設けたので、シート状側壁15の強度を維持し、シート
状底壁14に積層して焼成しても、ひずみ及び反りの発
生を防止する。
With such a ceramic base 1,
As shown in FIG. 3, with respect to the sheet-like bottom wall 14, the sheet-like side wall 15 opens only the element accommodating portion 16, and it is not necessary to expose the surface of the adjusting bottom wall 19 as described above.
Since the adjustment auxiliary portion 18 is provided by integrally extending the one end side, the strength of the sheet-like side wall 15 is maintained, and even if the sheet-like side wall 15 is laminated and baked, distortion and warpage may occur. To prevent

【0020】このようなことから、温度補償面実装発振
器の容器に適用した場合には、水晶片4及びICチップ
5を含む回路素子7の収容後、カバー2による封止を確
実にする。したがって、生産性を高めることができる。
また、セラミックベース1の封止後、調整用端子23に
よるICチップ5(記憶回路)への書き込み作業も可能
とする。
For this reason, when the present invention is applied to the container of the temperature-compensated surface-mounted oscillator, after the circuit element 7 including the crystal blank 4 and the IC chip 5 is accommodated, the sealing by the cover 2 is ensured. Therefore, productivity can be improved.
Further, after the ceramic base 1 is sealed, the writing operation to the IC chip 5 (memory circuit) by the adjustment terminal 23 is also enabled.

【0021】(製造方法の説明)以下、上述した表面実
装用容器を用いた温度補償面実装発振器の製造方法につ
いて同図を参照して説明する。先ず、シート状のセラミ
ックベース1を焼成して個々に分割する。次に、ICチ
ップ5、可変容量ダイオード6等の回路素子7を底壁8
の回路パターンに電気的に接続して搭載する。そして、
水晶片4の一端部を段部11に電気的・機械的に接続し
て保持する。次に、セラミックベース1の開口面にカバ
ー2を被せて、シーム溶接により封止する。
(Description of Manufacturing Method) A method of manufacturing a temperature-compensated surface-mounted oscillator using the above-described surface-mounting container will be described below with reference to FIG. First, the sheet-like ceramic base 1 is fired and divided into individual pieces. Next, the circuit elements 7 such as the IC chip 5 and the variable capacitance diode 6 are attached to the bottom wall 8.
Electrically connected to the circuit pattern of (1) and mounted. And
One end of the crystal blank 4 is electrically and mechanically connected to the step 11 and held. Next, the cover 2 is put on the opening surface of the ceramic base 1 and sealed by seam welding.

【0022】次に、調整用補助部18(調整用底壁1
9)の外表面に形成された調整用端子23により、適正
な温度補償特性となるまで、ICチップ5の記憶回路に
データを書き込む。最後に、温度補償特性を確認後、調
整用補助部18をセラミックベース1の本体から切断線
等に沿って切り離す。
Next, the adjusting auxiliary portion 18 (the adjusting bottom wall 1)
9) Data is written to the storage circuit of the IC chip 5 by the adjustment terminal 23 formed on the outer surface until the temperature compensation characteristics become appropriate. Finally, after confirming the temperature compensation characteristics, the adjusting auxiliary portion 18 is separated from the main body of the ceramic base 1 along a cutting line or the like.

【0023】このような製造方法であれば、水晶片4及
び他の回路素子7を密閉した後、諸特性特に温度特性を
測定して制御できるので、特に水晶片4による封止前後
による特性変化を防止して、高精度の温度補償面実装発
振器を得る。
According to such a manufacturing method, after sealing the crystal blank 4 and the other circuit elements 7, various characteristics, particularly temperature characteristics, can be measured and controlled. And a highly accurate temperature-compensated surface-mounted oscillator is obtained.

【0024】[0024]

【他の実施例】第4図は本発明の他の実施例を説明する
表面実装用容器の図で、温度補償面実装発振器に適用し
た場合の分解図である。なお、前実施例図と同一部分に
は同番号を付与してその説明は簡略する。この例での温
度補償面実装発振器は、セラミックベース1の底面にI
Cチップ等の回路素子7を配設して、水晶片4とは独立
して収容した点に相違がある。すなわち、表面実装用容
器3は、底壁8を底壁本体8aと環状枠とした底壁補助
部8bから形成する。そして、前実施例同様にその一端
部を一体的に延長して調整用底壁本体19aと調整用底
壁補助部19bからなる調整用底壁19を設ける。
Another Embodiment FIG. 4 is a view of a surface mounting container for explaining another embodiment of the present invention, and is an exploded view when applied to a temperature compensation surface mount oscillator. The same parts as those in the previous embodiment are denoted by the same reference numerals, and description thereof will be simplified. The temperature-compensated surface-mounted oscillator in this example has an I
There is a difference in that a circuit element 7 such as a C chip is provided and housed independently of the crystal blank 4. That is, the surface mounting container 3 is formed of the bottom wall 8 with the bottom wall main body 8a and the bottom wall auxiliary portion 8b. Then, similarly to the previous embodiment, one end thereof is integrally extended to provide an adjustment bottom wall 19 including an adjustment bottom wall main body 19a and an adjustment bottom wall auxiliary portion 19b.

【0025】水晶片4は、前述同様に、環状側壁9内の
素子収容部16に保持する。また、ICチップ5等の回
路素子7は、底壁補助部8bの回路パターン(未図示)
の形成された外表面に電気的に接続して配置する。そし
て、回路パターンに接続する導電路21及び電極貫通孔
22により、調整用端子23を外表面(裏面)に形成す
る。
The crystal blank 4 is held in the element housing 16 in the annular side wall 9 as described above. The circuit element 7 such as the IC chip 5 has a circuit pattern (not shown) of the bottom wall auxiliary portion 8b.
Is electrically connected to the outer surface on which is formed. Then, the adjustment terminal 23 is formed on the outer surface (back surface) by the conductive path 21 and the electrode through hole 22 connected to the circuit pattern.

【0026】このようなものでは、水晶片4を素子収容
部16内に保持してカバー2を接合して封入する。そし
て、封止後の水晶振動子の温度特性を測定して、良否の
選別を行い、温度特性が規格外の場合には廃棄する。次
に、水晶振動子の温度特性が規格内の場合には、ICチ
ップ等の回路素子7を底壁補助部19bの素子収容部1
5に搭載する。そして、前実施例同様に、特に温度特性
を測定して最適データの書き込み後、調整用補助部18
を分離切断する。
In such a device, the crystal blank 4 is held in the element accommodating portion 16 and the cover 2 is bonded and sealed. Then, the temperature characteristics of the sealed crystal unit are measured, and the quality is determined. If the temperature characteristics are out of the standard, the crystal unit is discarded. Next, when the temperature characteristic of the crystal unit is within the standard, the circuit element 7 such as an IC chip is replaced with the element accommodating section 1 of the bottom wall auxiliary section 19b.
5 Then, similarly to the previous embodiment, especially after the temperature characteristic is measured and the optimum data is written,
Is separated and cut.

【0027】このような構成であれば、前実施例同様
に、水晶片4及び他の回路素子7を密閉した後、諸特性
特に温度特性を測定して最適データの書き込み後、調整
用底壁18を分離切断することができる。したがって、
特に水晶片4による封止前後による特性変化を防止し
て、高精度の温度補償面実装発振器を得る。
With such a configuration, as in the previous embodiment, after the crystal blank 4 and the other circuit elements 7 are sealed, various characteristics, particularly temperature characteristics, are measured and optimum data is written. 18 can be cut off separately. Therefore,
In particular, a characteristic change before and after sealing by the crystal blank 4 is prevented, and a highly accurate temperature-compensated surface-mounted oscillator is obtained.

【0028】また、セラミックベース1は、前述したよ
うに、調整用底壁19と環状側壁とを一体的に延長して
調整用補助部18を設けたので、その強度を維持し、セ
ラミックベース1をシート状として焼成により製造する
際、ひずみ及び反りの発生を防止して生産性を高める。
Further, as described above, the ceramic base 1 is provided with the adjusting auxiliary portion 18 by integrally extending the adjusting bottom wall 19 and the annular side wall. When producing by heating in the form of a sheet, distortion and warpage are prevented from occurring and productivity is increased.

【0029】さらに、この実施例では、水晶振動子の温
度特性の良否を選別した後、回路素子7を収容する。し
たがって、前実施例に比較し、すなわち水晶片4及び回
路素子7を収容して封入するものに比較し、水晶振動子
の段階で(回路素子を封入しない段階)で、温度特性の
不良による選別(廃棄)を可能にする。したがって、高
価な回路素子7特にICチップ5を無駄にすることな
く、経済的な効果を有する。
Further, in this embodiment, the circuit element 7 is housed after the quality of the crystal resonator is determined. Therefore, in comparison with the previous embodiment, that is, in comparison with the case in which the crystal blank 4 and the circuit element 7 are accommodated and sealed, in the stage of the crystal oscillator (the stage where the circuit element is not encapsulated), selection due to poor temperature characteristics is performed. (Discard). Therefore, an economical effect is obtained without wasting the expensive circuit element 7, especially the IC chip 5.

【他の事項】[Other matters]

【0030】上記実施例では、調整用端子23は調整用
底壁の裏面に設けたが、表面実装容器3の外表面であれ
ばいずれでもよい。また、カバー2は金属体としてシー
ム溶接としたが、例えば同様のセラミックとしてガラス
溶融による接合であってもよくその形態はいずれでもよ
い。
In the above embodiment, the adjusting terminal 23 is provided on the back surface of the adjusting bottom wall. Further, the cover 2 is formed by seam welding as a metal body. However, for example, the same ceramic may be joined by melting glass and may be in any form.

【0031】また、環状側壁9は2層(9a、9b)と
して一端側に段部11を設けたが、両端側に設けて水晶
片4の両端を保持してもよい。また、第6図に示したよ
うに、環状側壁9は一層として側壁上面に水晶片4の一
端を保持するようにしてもよい。また、電極貫通孔22
は調整用底壁19の主面を貫通したが、導電路21を側
片に延出して電極貫通孔22を側面に形成してもよい。
Although the annular side wall 9 has the step portion 11 at one end as two layers (9a, 9b), it may be provided at both ends to hold both ends of the crystal blank 4. In addition, as shown in FIG. 6, the annular side wall 9 may be configured as one layer to hold one end of the crystal blank 4 on the upper surface of the side wall. The electrode through hole 22
Penetrated the main surface of the bottom wall 19 for adjustment, the conductive path 21 may be extended to the side piece and the electrode through hole 22 may be formed on the side surface.

【0032】このように、本発明は実施例に限らず、種
々の変形が可能であり、要は、セラミックベースの一端
側を延長して、ICチップへの調整用端子を有して分離
可能な調整用補助部を有する表面実装容器、及びこれを
用いて調整後調整用補助部を除去したた圧電発振器は、
本発明の技術的範囲に基本的に属する。
As described above, the present invention is not limited to the embodiment, but can be variously modified. In short, the present invention can be extended by extending one end of the ceramic base and having an adjusting terminal to the IC chip and being separable. Surface mount container having a special adjustment auxiliary part, and a piezoelectric oscillator from which the post-adjustment adjustment auxiliary part is removed using the container,
It basically belongs to the technical scope of the present invention.

【0033】[0033]

【発明の効果】本発明は、回路をパターンを形成された
底壁と環状側壁とからなセラミックベースの一端側を一
体的に延長して分離可能な調整用補助部を設け、調整用
補助部の外表面に回路パターンに接続する調整用端子を
形成したので、生産性及び品質を良好とした表面実装用
容器及びこれを用いた圧電発振器を提供できる。
According to the present invention, there is provided an adjusting auxiliary portion which is provided with a separable adjusting auxiliary portion by extending one end of a ceramic base composed of a bottom wall on which a pattern is formed and an annular side wall integrally. Since the adjusting terminals connected to the circuit pattern are formed on the outer surface of the substrate, it is possible to provide a surface mounting container having improved productivity and quality and a piezoelectric oscillator using the same.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施例を説明する表面実装用容器を
用いた温度補償面実装発振器の分解図である。
FIG. 1 is an exploded view of a temperature-compensated surface-mount oscillator using a surface-mount container for explaining an embodiment of the present invention.

【図2】本発明の一実施例を説明する表面実装用容器を
用いた温度補償面実装発振器の断面図である。
FIG. 2 is a cross-sectional view of a temperature-compensated surface-mount oscillator using a surface-mount container for explaining one embodiment of the present invention.

【図3】本発明の一実施例によるセラミックヘースを焼
成により形成する場合のシート状底壁とシート状側壁を
積層する分解図である。
FIG. 3 is an exploded view of laminating a sheet-like bottom wall and a sheet-like side wall when a ceramic haze according to an embodiment of the present invention is formed by firing.

【図4】本発明の他の実施例を説明する表面実装用容器
を用いた温度補償面実装発振器の分解図である。
FIG. 4 is an exploded view of a temperature-compensated surface-mount oscillator using a surface-mount container for explaining another embodiment of the present invention.

【図5】本発明の他の実施例を説明する表面実装用容器
を用いた温度補償面実装発振器の断面図である。
FIG. 5 is a cross-sectional view of a temperature-compensated surface-mount oscillator using a surface-mount container for explaining another embodiment of the present invention.

【図6】本発明のさらに他の実施例を説明する表面実装
用容器を用いた温度補償面実装発振器の断面図である。
FIG. 6 is a cross-sectional view of a temperature-compensated surface-mounted oscillator using a surface-mount container for explaining still another embodiment of the present invention.

【図7】従来例を説明する温度補償面実装発振器の分解
図である。
FIG. 7 is an exploded view of a temperature-compensated surface-mounted oscillator illustrating a conventional example.

【図8】従来例を説明する温度補償面実装発振器の断面
図である。
FIG. 8 is a cross-sectional view of a temperature-compensated surface-mounted oscillator illustrating a conventional example.

【図9】従来例を説明する水晶振動子の温度特性であ
る。
FIG. 9 is a graph showing temperature characteristics of a quartz oscillator for explaining a conventional example.

【図10】従来例を説明する温度補償発振器の回路図で
ある。
FIG. 10 is a circuit diagram of a temperature-compensated oscillator explaining a conventional example.

【図11】従来例に基づく表面実装用容器の図である。FIG. 11 is a diagram of a surface mounting container based on a conventional example.

【図12】従来例に基づくシート状底壁とシート状側壁
を積層する分解図である。
FIG. 12 is an exploded view of laminating a sheet-like bottom wall and a sheet-like side wall based on a conventional example.

【図13】従来例に基づくシート状としたセラミックベ
ースの問題点を説明する断面図である。
FIG. 13 is a cross-sectional view illustrating a problem of a sheet-shaped ceramic base based on a conventional example.

【符号の説明】[Explanation of symbols]

1、セラミックベース、2 カバー、3 表面実装用容
器、4 水晶片、5 ICチップ、6 可変容量ダイオ
ード、7 回路素子、8 底壁、9 環状側壁、10
実装用端子、11 段部、12 調整用底壁、13 導
電路、14シート状底壁、15 シート状側壁、16
素子収容部、17 調整用開口部、18 調整用補助
部、19 調整用底壁、20 調整用側壁、21 導電
路、22 電極貫通孔、23 調整用端子.
1, ceramic base, 2 cover, 3 surface mounting container, 4 crystal chips, 5 IC chip, 6 variable capacitance diode, 7 circuit element, 8 bottom wall, 9 annular side wall, 10
Mounting terminal, 11 steps, 12 Adjustment bottom wall, 13 Conductive path, 14 Sheet bottom wall, 15 Sheet side wall, 16
Element accommodating part, 17 adjusting opening, 18 adjusting auxiliary part, 19 adjusting bottom wall, 20 adjusting side wall, 21 conductive path, 22 electrode through hole, 23 adjusting terminal.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】回路パターンの形成されて表面実装用の端
子を露出した底壁と、前記底壁の外周に設けられて圧電
片を収容する環状側壁とを積層して、焼成により形成さ
れたセラミックベースを具備してなる表面実装用容器に
おいて、前記セラミックベースの一端側の底壁と環状側
壁とを一体的に延長して、セラミックベース本体とは分
離可能な調整用補助部を設け、前記調整用補助部の外表
面に前記回路パターンに接続する調整用端子を形成した
ことを特徴とする表面実装用容器。
1. A bottom wall having a circuit pattern formed thereon and exposing terminals for surface mounting, and an annular side wall provided on an outer periphery of the bottom wall and accommodating a piezoelectric piece are laminated and formed by firing. In a surface mounting container comprising a ceramic base, a bottom wall and an annular side wall on one end side of the ceramic base are integrally extended, and an adjustment auxiliary portion which is separable from the ceramic base body is provided, A surface mounting container, wherein an adjustment terminal connected to the circuit pattern is formed on an outer surface of the adjustment auxiliary portion.
【請求項2】請求項1に記載の前記セラミックベースに
前記回路パターンに電気的に接続する圧電片とICチッ
プを収容し、少なくとも圧電片を封入して密閉した後、
前記調整用端子により前記ICチップ内の記憶回路を制
御し、その後前記調整用補助部を分割したことを特徴と
する圧電発振器の製造方法。
2. A piezoelectric piece and an IC chip electrically connected to the circuit pattern are housed in the ceramic base according to claim 1, and at least the piezoelectric piece is sealed and sealed.
A method for manufacturing a piezoelectric oscillator, wherein a memory circuit in the IC chip is controlled by the adjustment terminal, and thereafter, the adjustment auxiliary unit is divided.
JP21222396A 1996-07-04 1996-07-04 Surface mounting container and method of manufacturing piezoelectric oscillator using the same Expired - Fee Related JP3276136B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21222396A JP3276136B2 (en) 1996-07-04 1996-07-04 Surface mounting container and method of manufacturing piezoelectric oscillator using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21222396A JP3276136B2 (en) 1996-07-04 1996-07-04 Surface mounting container and method of manufacturing piezoelectric oscillator using the same

Publications (2)

Publication Number Publication Date
JPH1022735A true JPH1022735A (en) 1998-01-23
JP3276136B2 JP3276136B2 (en) 2002-04-22

Family

ID=16618995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21222396A Expired - Fee Related JP3276136B2 (en) 1996-07-04 1996-07-04 Surface mounting container and method of manufacturing piezoelectric oscillator using the same

Country Status (1)

Country Link
JP (1) JP3276136B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6531807B2 (en) 2001-05-09 2003-03-11 Seiko Epson Corporation Piezoelectric device
JP2006262136A (en) * 2005-03-17 2006-09-28 Kyocera Corp Method of manufacturing temperature-compensated crystal-controlled oscillator
US7266869B2 (en) 2003-07-30 2007-09-11 Kyocera Corporation Method for manufacturing a piezoelectric oscillator
US7489208B2 (en) 2006-04-12 2009-02-10 Nihon Dempa Kogyo Co., Ltd. Surface mount crystal oscillator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6531807B2 (en) 2001-05-09 2003-03-11 Seiko Epson Corporation Piezoelectric device
US7266869B2 (en) 2003-07-30 2007-09-11 Kyocera Corporation Method for manufacturing a piezoelectric oscillator
JP2006262136A (en) * 2005-03-17 2006-09-28 Kyocera Corp Method of manufacturing temperature-compensated crystal-controlled oscillator
JP4594139B2 (en) * 2005-03-17 2010-12-08 京セラ株式会社 Manufacturing method of temperature compensated crystal oscillator
US7489208B2 (en) 2006-04-12 2009-02-10 Nihon Dempa Kogyo Co., Ltd. Surface mount crystal oscillator

Also Published As

Publication number Publication date
JP3276136B2 (en) 2002-04-22

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