JP2663270B2 - Resonator and manufacturing method thereof - Google Patents
Resonator and manufacturing method thereofInfo
- Publication number
- JP2663270B2 JP2663270B2 JP63032159A JP3215988A JP2663270B2 JP 2663270 B2 JP2663270 B2 JP 2663270B2 JP 63032159 A JP63032159 A JP 63032159A JP 3215988 A JP3215988 A JP 3215988A JP 2663270 B2 JP2663270 B2 JP 2663270B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- pair
- sheet
- electrode layer
- layers
- 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 - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000010410 layer Substances 0.000 claims description 144
- 239000000463 material Substances 0.000 claims description 25
- 239000011241 protective layer Substances 0.000 claims description 24
- 239000004020 conductor Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 7
- 210000002105 tongue Anatomy 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Filters And Equalizers (AREA)
- Coils Or Transformers For Communication (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、層状の誘電体の両面に導電パターンを形成
した共振器本体を主たる構成とする共振器及びその製造
方法に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resonator mainly including a resonator main body in which conductive patterns are formed on both surfaces of a layered dielectric, and a method of manufacturing the same.
従来の技術 上記の共振器の１つとして、第６図（一部切欠いて示
す正面図）及び第７図（第６図のVII−VII線による断面
図）に示す如く、焼成して得た誘電体基板20の表裏面に
夫々コの字状の導電パターン23,24を形成し、外部取り
出し用リード端子21を半田付けしたのち、リード端子21
部分を除いてこれを絶縁用の樹脂浴中に浸漬して樹脂膜
22を形成することにより製造したものがある。かかる構
成の共振器は本出願人より特願昭61−097313号にて提案
されている。尚、この電気的作用については実施例のと
ころで説明する。2. Description of the Related Art One of the above-mentioned resonators is obtained by firing as shown in FIG. 6 (a partially cutaway front view) and FIG. 7 (a cross-sectional view taken along line VII-VII in FIG. 6). U-shaped conductive patterns 23 and 24 are formed on the front and back surfaces of the dielectric substrate 20, respectively, and the lead terminals 21 for external extraction are soldered.
Except for the part, this is immersed in an insulating resin bath to form a resin film.
Some are made by forming 22. A resonator having such a configuration is proposed by the present applicant in Japanese Patent Application No. 61-097313. The electrical operation will be described in the embodiments.
発明が解決しようとする課題 したがって、従来法では基板の焼成，導電パターンの
形成，リード端子の半田付け及び樹脂中への浸漬等、種
々の異なる製造技術が必要であるため、製造が煩雑であ
り、また、製造された共振器にあってはリード端子を用
いて回路基板に取付ける必要があるために、所謂表面実
装が行ない難いと言う問題がある。また共振器の周りに
シールドを施していないために近くに金属等の導体が存
在すると共振周波数にずれが生じる。更には、共振器本
体は樹脂膜で覆われているので内部の導電パターンをト
リミングするわけには行かず、共振周波数の調整が困難
であるという問題点があった。Problems to be Solved by the Invention Therefore, the conventional method requires various manufacturing techniques such as baking a substrate, forming a conductive pattern, soldering lead terminals, and immersing in a resin. In addition, in the manufactured resonator, it is necessary to mount the resonator on the circuit board using the lead terminals, so that there is a problem that it is difficult to perform surface mounting. In addition, since no shield is provided around the resonator, if a conductor such as a metal exists nearby, a shift occurs in the resonance frequency. Furthermore, since the resonator main body is covered with the resin film, the internal conductive pattern cannot be trimmed, and there is a problem that it is difficult to adjust the resonance frequency.
本発明はかかる事情に鑑みてなされたものであり、製
造の容易化および表面実装化を行ない得、またシールド
が可能であると共に共振周波数の調整が可能である共振
器及びその製造方法を提供することを目的とする。The present invention has been made in view of such circumstances, and provides a resonator capable of facilitating manufacture and surface mounting, and capable of shielding and adjusting a resonance frequency, and a method of manufacturing the same. The purpose is to:
課題を解決するための手段 本発明に係る共振器は、請求項（１）において誘電体
層と、 この誘電体層を挟んで両側に設けられ、該誘電体層と
共に共振器本体を構成する表電極及び裏電極層と、 前記共振器本体を挟んで両側に設けられ、所定周波数
特性を得るに適した寸法厚さに形成された一対のシート
層と、 前記表電極層及び裏電極層に対して前記一対のシート
層を介して夫々対向状に設けてある一対のシールド電極
層と、 前記一対のシールド電極層の各外面側に設けてある一
対の保護層と、 前記表電極層と裏電極層とに夫々個別に電気的に接続
する一対の端子電極膜を備え、前記一対のシート層、及
び一対の保護層は前記誘電体層と同質材料で構成すると
共に、前記一対の端子電極膜を各層の積層側面を介して
前記保護層の外面側に設けたことを特徴とするものであ
る。Means for Solving the Problems The resonator according to the present invention is characterized in that, in claim (1), a dielectric layer is provided on both sides of the dielectric layer, and the dielectric layer and the dielectric layer constitute a resonator body. An electrode and a back electrode layer, a pair of sheet layers provided on both sides of the resonator body and formed to have a dimensional thickness suitable for obtaining a predetermined frequency characteristic, and A pair of shield electrode layers provided to face each other with the pair of sheet layers interposed therebetween; a pair of protective layers provided on each outer surface side of the pair of shield electrode layers; a front electrode layer and a back electrode A pair of terminal electrode films respectively electrically connected to the respective layers, the pair of sheet layers, and the pair of protective layers are made of the same material as the dielectric layer, and the pair of terminal electrode films are formed of the same material. Provided on the outer surface side of the protective layer via the laminated side surface of each layer It is characterized in that the.
又、請求項（２）では共振器を製造する方法におい
て、最下層から最上層に向けて誘電体層と同質材料から
なる保護層、裏電極層に対してシート層を介して対向状
に設けられたシールド電極層、誘電体層と同質材料から
なり所定周波数特性を得るに適した寸法厚さに形成され
たシート層、裏電極層、誘電体層、表電極層、誘電体層
と同質材料からなり所定周波数特性を得るに適した寸法
厚さに形成されたシート層、表電極層に対しシート層を
介して対向状に設けられたシールド電極層、誘導体層と
同質材料からなる保護層の順に積層し積層体を形成する
工程と、前記表電極層と裏電極層とに夫々個別に電気的
に接続する一対の端子電極膜を前記積層体側面及び保護
層の外面に形成する工程と、 前記各工程を経過した積層体を焼成する工程と を含むことを特徴とするものである。According to a second aspect of the present invention, in the method for manufacturing a resonator, a protective layer made of the same material as the dielectric layer is provided from the lowermost layer to the uppermost layer, facing the back electrode layer via a sheet layer. Sheet layer, back electrode layer, dielectric layer, front electrode layer, same material as the dielectric layer, made of the same material as the shield electrode layer and the dielectric layer, and formed to have a thickness suitable for obtaining predetermined frequency characteristics. A sheet layer formed to have a size and thickness suitable for obtaining a predetermined frequency characteristic, a shield electrode layer provided opposite to the front electrode layer via the sheet layer, and a protective layer made of the same material as the dielectric layer. A step of forming a laminated body by sequentially laminating, and a step of forming a pair of terminal electrode films individually and electrically connected to the front electrode layer and the back electrode layer on the side surfaces of the laminated body and the outer surface of the protective layer, Baking the laminated body after each of the above steps; It is characterized in that comprises.
作用 前記構成により、誘電体層、表電極層、裏電極層とで
構成された共振器本体を挟んでその両側に、各一対のシ
ート層、シールド電極層、保護層を積層すると共に、前
記一対のシート層、保護層を前記誘電体層と同質材料で
構成しているので、従来のように異なる種類の製造技術
や工程を必要とせず、一貫した焼成工程で容易に積層体
を製造でき、又表、裏電極層に接続された一対の端子電
極膜が前記積層体の側面を介して露出状に延設して前記
保護層の外面に設けていることで、回路基板に対し共振
器を載置するだけでその表面実装が可能となる。又、前
記一対のシート層と一対の保護層との間に一対のシール
ド電極層を配していることで、共振器本体の外部に対す
るシールド効果を一層助長できる。According to the configuration, a pair of sheet layers, a shield electrode layer, and a protective layer are laminated on both sides of the resonator body including the dielectric layer, the front electrode layer, and the back electrode layer. Since the sheet layer and the protective layer are made of the same material as the dielectric layer, different types of manufacturing techniques and processes are not required as in the past, and a laminated body can be easily manufactured by a consistent firing process, In addition, a pair of terminal electrode films connected to the front and back electrode layers are exposed on the outer surface of the protective layer so as to extend through the side surfaces of the laminated body and expose the resonator to the circuit board. The surface mounting becomes possible only by mounting. Further, by disposing a pair of shield electrode layers between the pair of sheet layers and the pair of protective layers, a shielding effect against the outside of the resonator body can be further promoted.
更に、前記一対のシート層を所定の周波数特性を得る
に適した寸法厚さに形成することで、共振器本体と対向
配設されたシールド電極層との間隔を調整できる。Further, by forming the pair of sheet layers to have a dimensional thickness suitable for obtaining a predetermined frequency characteristic, it is possible to adjust the distance between the resonator body and the shield electrode layer disposed opposite to the resonator body.
実 施 例 第１図は本発明品の一実施例を示す外観斜視図、第２
図は第１図のII−II線による断面図（正面図）、第３図
は第２図のIII−III線による断面図（平面図）である。
本発明に係る共振器は、第1,2図に示す如く９層を積層
した状態の長方体形状をなし、最下層側から順に、誘電
体又は絶縁体からなり、厚さが20〜50μｍであるシート
状の保護層1,シールド電極層2,誘電体又は絶縁体からな
る厚さ１〜1.5mmのシート層3,銅等の導電材料からなる
裏電極層4,誘電体、例えばBaO−SiO2−ZrO2系誘電体か
らなり、厚さが20〜50μｍであるシート状の誘電体層5,
銅等の導電材料からなる表電極層6,誘電体又は絶縁体か
らなる厚さ１〜1.5mmのシート層７、シールド電極層８
及び、誘電体又は絶縁体からなり、厚さが20〜50μｍで
あるシート状の保護層９が設けられている。FIG. 1 is an external perspective view showing an embodiment of the product of the present invention.
The drawing is a cross-sectional view (front view) along the line II-II in FIG. 1, and FIG. 3 is a cross-sectional view (plan view) along the line III-III in FIG.
The resonator according to the present invention has a rectangular shape in which nine layers are stacked as shown in FIGS. 1 and 2, and is made of a dielectric or an insulator in order from the lowermost layer, and has a thickness of 20 to 50 μm. A sheet-like protective layer 1, a shield electrode layer 2, a 1 to 1.5 mm thick sheet layer 3 made of a dielectric or insulator, a back electrode layer 4 made of a conductive material such as copper, a dielectric, for example, BaO- A sheet-like dielectric layer 5 made of SiO 2 -ZrO 2 based dielectric and having a thickness of 20 to 50 μm;
A front electrode layer 6 made of a conductive material such as copper, a sheet layer 7 made of a dielectric or insulator and having a thickness of 1 to 1.5 mm, and a shield electrode layer 8
A sheet-like protective layer 9 made of a dielectric or an insulator and having a thickness of 20 to 50 μm is provided.
上記裏電極層４と表電極層６とは第３図に示す如く２
つのコンデンサ電極パターン61,62、41,42を１つのコイ
ルパターン63,43で接続したもので、平面視コの字パタ
ーン形状をしている。前記コンデンサ電極パターン61と
41、及び62と42は夫々誘電体層５の表裏両面において対
向しており、誘電体層５の誘電率、厚さ、コンデンサ電
極の対向面積によって決まる容量のコンデンサC1,C2を
形成している。一方、コイルパターン63,43は、夫々誘
電体層５の表裏各面において２つのコンデンサ電極パタ
ーン61と62、41と42を接続する状態で形成されている。
各コイルパターン63,43は高周波的にはコイルを形成す
るのでそのインダクタンスをL1,L2とすると、共振器本
体は第４図に示すように第１のコンデンサC1の両側にコ
イルL1,L2を直列接続したLC回路に第２のコンデンサC2
を並列接続した等価回路であらわされる。この等価回路
からなる共振器は、非常に高いＱを持ち、高周波域で使
用されるフィルタや発振素子に好適したものであるが、
インダクタンスをコイルパターンによって構成した場合
には、金属等の導体が近づいても共振周波数にずれが生
じないように、シールドを施すことが必要となる。な
お、この等価回路は第６図に示す従来品の場合も同様で
ある。The back electrode layer 4 and the front electrode layer 6 are formed as shown in FIG.
The two capacitor electrode patterns 61, 62, 41, 42 are connected by one coil pattern 63, 43, and have a U-shaped pattern shape in plan view. The capacitor electrode pattern 61 and
41, 62 and 42 are opposed to each other on both the front and back surfaces of the dielectric layer 5 to form capacitors C1 and C2 having a capacity determined by the dielectric constant, the thickness of the dielectric layer 5, and the facing area of the capacitor electrodes. . On the other hand, the coil patterns 63 and 43 are formed so as to connect the two capacitor electrode patterns 61 and 62 and 41 and 42 on the front and back surfaces of the dielectric layer 5, respectively.
Each of the coil patterns 63 and 43 forms a coil in terms of high frequency. If the inductances are L1 and L2, as shown in FIG. 4, the resonator main body includes coils L1 and L2 connected in series on both sides of the first capacitor C1. Connect the second capacitor C2 to the connected LC circuit.
Are connected in parallel. The resonator composed of this equivalent circuit has a very high Q and is suitable for a filter or an oscillation element used in a high frequency range.
When the inductance is formed by a coil pattern, it is necessary to provide a shield so that the resonance frequency does not deviate even when a conductor such as a metal approaches. This equivalent circuit is the same in the case of the conventional product shown in FIG.
また、前記裏電極層４及び表電極層６は共に共振器の
一側面に達する舌片4a,6bを有し、この舌片4a,6bの露出
した部分はこれよりも下の側面部分とこれに続く底面部
分に夫々Ｌ字状に形成した銀等の導電材料からなる端子
電極膜10,11と電気的に接続されている。この端子電極
膜10,11は夫々相互にかつ他の層に対しても電気的に絶
縁されて形成してある。The back electrode layer 4 and the front electrode layer 6 both have tongues 4a, 6b reaching one side of the resonator, and the exposed portions of the tongues 4a, 6b correspond to the side portions below this. Are electrically connected to terminal electrode films 10 and 11 formed of an electrically conductive material such as silver and formed in an L-shape on the bottom surface portions subsequent thereto. The terminal electrode films 10 and 11 are formed so as to be electrically insulated from each other and from other layers.
かかる構造の共振器の製造方法につき次に説明する。
まず、保護層１、シート層3,7、誘電体５を用意し、保
持層１の表面に例えば銅等の銅電材料からなるペースト
をスクリーン印刷又は塗布することによりシールド電極
２を形成し、またシート層３の表面に同様の方法で上記
舌片4aを有するコの字パターンの裏面電極４を形成し、
また誘電体層５の表面に同様の方法で上記舌片6aを有す
るコの字パターンの表面電極６を形成し、さらにシート
層７の表面に同様の方法でシールド電極８を形成し、こ
れらを保護層９とともに重ね合わせたのち圧着して９層
の積層体を形成し、この積層体における前記舌片4a,6a
の露出部分とこれよりも下の側面及びこれに続く底面
に、例えば銅あるいは銀等の導電材料からなるペースト
を印刷して端子電極膜10,11を形成したのち、積層体を
たとえば1000℃で２時間焼成する。Next, a method for manufacturing a resonator having such a structure will be described.
First, the protective layer 1, the sheet layers 3, 7 and the dielectric 5 are prepared, and the shield electrode 2 is formed on the surface of the holding layer 1 by screen printing or applying a paste made of a copper electric material such as copper. Also, a back-side electrode 4 having a U-shaped pattern having the tongue piece 4a is formed on the surface of the sheet layer 3 in the same manner,
A U-shaped pattern surface electrode 6 having the tongue 6a is formed on the surface of the dielectric layer 5 by the same method, and a shield electrode 8 is formed on the surface of the sheet layer 7 by the same method. After being laminated together with the protective layer 9, the laminate is pressure-bonded to form a nine-layer laminate, and the tongue pieces 4 a and 6 a in this laminate are formed.
After printing a paste made of a conductive material such as copper or silver on the exposed portion and the lower side surface and the bottom surface following this to form terminal electrode films 10 and 11, the laminate is heated at, for example, 1000 ° C. Bake for 2 hours.
なお、シールド電極2,8、裏面電極４、表面電極６の
形成される位置は上述したものに限定されることなく、
たとえばシールド電極２を保護層１の表面ではなく、シ
ート層３の裏面に形成するようにしてもよい。The positions where the shield electrodes 2 and 8, the back electrode 4 and the front electrode 6 are formed are not limited to those described above.
For example, the shield electrode 2 may be formed not on the front surface of the protective layer 1 but on the back surface of the sheet layer 3.
このようにして製造した共振器にあっては、端子電極
膜10,11が外部に露出させて膜状に形成してあるので、
これらを回路基板に合わせて共振器を置くだけで、容易
に表面実装が行えることとなる。In the resonator manufactured in this manner, the terminal electrode films 10 and 11 are formed in a film shape by being exposed to the outside.
Surface mounting can be easily performed only by placing these resonators in accordance with the circuit board.
なお、圧着については本発明の必須要件ではない。更
に、表電極層６、裏電極層４及びシールド電極層2,8を
除く上記５つの各層夫々については、１枚のシート材で
構成させても或いは同一材質からなる２枚以上のシート
材を重ねて構成させてもよい。It should be noted that pressure bonding is not an essential requirement of the present invention. Further, each of the above five layers except the front electrode layer 6, the back electrode layer 4, and the shield electrode layers 2 and 8 may be constituted by one sheet material or two or more sheet materials made of the same material. You may make it overlap and comprise.
前記共振器本体の上下には夫々シート層7,3を介して
シールド電極層8,2が配されている。このため共振器本
体はこのシールド電極層8,2によりシールドされてお
り、また、シート層7,3の両方又はいずれか一方の厚み
を変えることにより、つまり１枚のシート材の厚みを変
えるか或いはシート層7,3を構成する複数のシート材の
枚数を増減することにより、共振器の共振周波数を調整
することが可能である。例えばシート層７側の厚みを変
えて共振周波数の調整を行なう場合につき以下に説明す
る。Shield electrode layers 8, 2 are disposed above and below the resonator body via sheet layers 7, 3, respectively. For this reason, the resonator body is shielded by the shield electrode layers 8 and 2, and the thickness of one or both of the sheet layers 7 and 3 is changed, that is, the thickness of one sheet material is changed. Alternatively, the resonance frequency of the resonator can be adjusted by increasing or decreasing the number of sheets constituting the sheet layers 7 and 3. For example, a case where the resonance frequency is adjusted by changing the thickness of the sheet layer 7 will be described below.
先ず、共振周波数が所望の値より高い場合には、シー
ト層７を厚くする。これにより共振器本体かシールド電
極層８が離隔するので共振周波数が低下する。これによ
って第５図（周波数特性曲線）に示す如く曲線１から曲
線２に共振周波数の調整を行なうことができる。First, when the resonance frequency is higher than a desired value, the thickness of the sheet layer 7 is increased. As a result, the resonator body is separated from the shield electrode layer 8, so that the resonance frequency is reduced. As a result, the resonance frequency can be adjusted from the curve 1 to the curve 2 as shown in FIG. 5 (frequency characteristic curve).
逆に、共振周波数が所望の値より低い場合には、シー
ト層７を薄くする。これにより上記の場合とは反対に、
シールド電極層が共振器本体に接近するため、曲線１が
曲線３の状態に変わり共振周波数が高くなる。Conversely, if the resonance frequency is lower than the desired value, the sheet layer 7 is made thinner. This, contrary to the above case,
Since the shield electrode layer approaches the resonator main body, curve 1 changes to the state of curve 3 and the resonance frequency increases.
また、上述のシート層７及び３は夫々厚さを均一にす
ることが可能であり、このためシールド電極層8,2と、
表・裏電極層6,4とを平行にでき、間隔も例えば1mm以上
で一定にすることができる。これにより、シールドを施
した共振器のＱの劣化を抑制できる。In addition, the above-mentioned sheet layers 7 and 3 can be made uniform in thickness, respectively.
The front and back electrode layers 6 and 4 can be made parallel, and the interval can be made constant at, for example, 1 mm or more. Thereby, the deterioration of Q of the shielded resonator can be suppressed.
尚、この実施例ではシールド電極層は接地されていな
いが外部のアース電位と接続した方がより高いシールド
効果が得られる。その場合は、端子電極膜10,11が形成
されている共振器側面とは反対側の側面に達するように
シールド電極層2,8に舌片を設け、これとアースとの間
を銀ペースト等を用いて短絡させるとよい。Although the shield electrode layer is not grounded in this embodiment, a higher shield effect can be obtained by connecting it to an external ground potential. In that case, tongues are provided on the shield electrode layers 2, 8 so as to reach the side opposite to the side of the resonator on which the terminal electrode films 10, 11 are formed, and a silver paste or the like is provided between this and the ground. It is good to short-circuit using.
また、上記実施例では表電極層６、裏電極層４及びシ
ールド電極層2,8を印刷又は塗布により形成している
が、本発明はこれに限らず、表電極層６、裏電極層４及
びシールド電極層2,8用に導電材料からなるシート材を
夫々用意し、９つのシート材を重ね合わせるようにして
も、或いは表電極層６、裏電極層４及びシールド電極層
2,8の１つ以上に導電材料からなるシート材を用意し、
印刷又は塗布を行なうことと併用して各シート材を重ね
合わせるようにしてもよい。In the above embodiment, the front electrode layer 6, the back electrode layer 4, and the shield electrode layers 2, 8 are formed by printing or coating. However, the present invention is not limited to this. Also, a sheet material made of a conductive material may be prepared for each of the shield electrode layers 2 and 8, and nine sheet materials may be overlapped, or the front electrode layer 6, the back electrode layer 4, and the shield electrode layer
Prepare a sheet material made of conductive material in one or more of 2,8,
The sheet materials may be overlapped in combination with printing or coating.
さらに、保護層1,9、シート層3,7、誘電体層５をそれ
ぞれ、１枚のシート材によって構成するか、それとも複
数のシート材を積層することによって構成するかは任意
であり、適宜選択することができる。Further, it is optional whether each of the protective layers 1 and 9, the sheet layers 3 and 7, and the dielectric layer 5 is formed by one sheet material or by stacking a plurality of sheet materials. You can choose.
発明の効果 以上詳述した如く本発明は請求項（１）において、全
てのシート層と保護層とを誘電体層と同質材料で構成す
ることにより、異質材料のシート層を準備する必要がな
く、その分作業を省略でき、しかも一対の端子電極膜が
積層体側面を介して延設状に露出して設けられているこ
とにより、回路基板に対して容易に表面実装が可能であ
り、又共振器本体を挟む両側に誘電体層と同質材料のシ
ート層が設けられているので、前記共振器本体が確実に
シールドされ、導体の近接により共振周波数が不用意に
変動する恐れがなく、その上共振器本体とシールド電極
層との間隔を、所定の周波数特性を得るに適した寸法厚
さのシート層を形成することで共振周波数特性を容易に
調整することが可能となる。Effect of the Invention As described in detail above, according to the present invention, since all the sheet layers and the protective layer are made of the same material as the dielectric layer, it is not necessary to prepare a sheet layer of a different material. Therefore, the work can be omitted, and the pair of terminal electrode films are provided in an extended manner through the side surfaces of the laminated body, so that the surface mounting can be easily performed on the circuit board. Since a sheet layer made of the same material as the dielectric layer is provided on both sides of the resonator main body, the resonator main body is securely shielded, and the resonance frequency is not inadvertently fluctuated by the proximity of the conductor. The spacing between the upper resonator body and the shield electrode layer can be easily adjusted by forming a sheet layer having a dimension and thickness suitable for obtaining predetermined frequency characteristics.
又、請求項（２）においては、一貫した焼成技術で形
成できるので製造の工程数を減少でき、積層型共振器を
容易に製造できる等、顕著な効果を奏することができ
る。According to the second aspect of the present invention, a remarkable effect can be achieved such that the number of manufacturing steps can be reduced and the laminated resonator can be easily manufactured, since it can be formed by a consistent firing technique.
第１図は本発明品の一実施例を示す外観斜視図、第２図
は第１図のII−II線による断面図（正面図）、第３図は
第２図のIII−III線による断面図（平面図）、第４図は
本発明品の共振器本体に関する等価回路図、第５図は本
発明品の周波数特性曲線を示すグラフ、第６図は従来品
を一部切欠いて示す正面図、第７図は第６図のVII−VII
線による断面図である。 1,9……保護層、2,8……シールド電極層、3,7……シー
ト層、４……裏電極層、５……誘電体層、６……表電極
層、10,11……端子電極膜。1 is an external perspective view showing an embodiment of the product of the present invention, FIG. 2 is a sectional view (front view) taken along the line II-II in FIG. 1, and FIG. 3 is a sectional view taken along the line III-III in FIG. FIG. 4 is an equivalent circuit diagram of the resonator body of the present invention, FIG. 5 is a graph showing a frequency characteristic curve of the present invention, and FIG. 6 is a partially cutaway view of the conventional product. FIG. 7 is a front view, and FIG.
It is sectional drawing by a line. 1,9 ... Protective layer, 2,8 ... Shield electrode layer, 3,7 ... Sheet layer, 4 ... Back electrode layer, 5 ... Dielectric layer, 6 ... Front electrode layer, 10,11 ... ... Terminal electrode film.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−151007（ＪＰ，Ａ) 特開 昭59−223011（ＪＰ，Ａ) 特開 昭58−145114（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-151007 (JP, A) JP-A-59-223011 (JP, A) JP-A-58-145114 (JP, A)
Claims (2)
に共振器本体を構成する表電極層及び裏電極層と、 前記共振器本体を挟んで両側に設けられ、所定周波数特
性を得るに適した寸法厚さに形成された一対のシート層
と、 前記表電極層及び裏電極層に対して前記一対のシート層
を介して夫々対向状に設けてある一対のシールド電極層
と、 前記一対のシールド電極層の各外面側に設けてある一対
の保護層と、 前記表電極層と裏電極層とに夫々個別に電気的に接続す
る一対の端子電極膜とを備え、前記一対のシート層、及
び一対の保護層は前記誘電体層と同質材料で構成すると
共に、前記一対の端子電極膜を各層の積層側面を介して
前記保護層の外面側に設けたことを特徴とする共振器。1. A dielectric layer, a front electrode layer and a back electrode layer provided on both sides of the dielectric layer and constituting a resonator body together with the dielectric layer, and both sides of the resonator body. And a pair of sheet layers formed to have a dimensional thickness suitable for obtaining a predetermined frequency characteristic, and provided in opposition to the front electrode layer and the back electrode layer via the pair of sheet layers, respectively. A pair of shield electrode layers, a pair of protective layers provided on each outer surface side of the pair of shield electrode layers, and a pair of terminal electrodes individually electrically connected to the front electrode layer and the back electrode layer, respectively. A pair of sheet layers, and a pair of protective layers are made of the same material as the dielectric layer, and the pair of terminal electrode films are disposed on the outer surface side of the protective layer via the laminated side surfaces of the respective layers. A resonator provided.
保護層、裏電極層に対しシート層を介して対向状に設け
られたシールド電極層、誘電体層と同質材料からなり所
定周波数特性を得るに適した寸法厚さに形成されたシー
ト層、裏電極層、誘電体層、表電極層、誘電体層と同質
材料からなり所定周波数特性を得るに適した寸法厚さに
形成されたシート層、表電極層に対しシート層を介して
対向状に設けられたシールド電極層、誘電体層と同質材
料からなる保護層の順に積層し積層体を形成する工程
と、前記表電極層と裏電極層とに夫々個別に電気的に接
続する一対の端子電極膜を前記積層体側面及び保護層の
外面に形成する工程と、 前記各工程を経過した積層体を焼成する工程と を含むことを特徴とする共振器の製造方法。2. A method of manufacturing a resonator, comprising: a protective layer made of the same material as a dielectric layer from the bottom layer to the top layer; and a shield electrode provided opposite to a back electrode layer via a sheet layer. Layer, dielectric layer, sheet layer, back electrode layer, dielectric layer, front electrode layer, and dielectric layer, which are made of the same material and have the same frequency as those formed of the same material as the dielectric layer and having a size suitable for obtaining predetermined frequency characteristics. A sheet layer formed in a thickness suitable for obtaining the characteristics, a shield electrode layer provided opposite to the front electrode layer with the sheet layer interposed therebetween, and a protective layer made of the same material as the dielectric layer are laminated in this order. A step of forming a laminate, a step of forming a pair of terminal electrode films individually and electrically connected to the front electrode layer and the back electrode layer, respectively, on the side surface of the laminate and an outer surface of the protective layer; Baking the laminated body that has passed through. Method of manufacturing a resonator, characterized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63032159A JP2663270B2 (en) | 1988-02-15 | 1988-02-15 | Resonator and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63032159A JP2663270B2 (en) | 1988-02-15 | 1988-02-15 | Resonator and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01208007A JPH01208007A (en) | 1989-08-22 |
| JP2663270B2 true JP2663270B2 (en) | 1997-10-15 |
Family
ID=12351152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63032159A Expired - Lifetime JP2663270B2 (en) | 1988-02-15 | 1988-02-15 | Resonator and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2663270B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3072845B2 (en) * | 1989-10-11 | 2000-08-07 | 株式会社村田製作所 | Delay line |
| JP2663304B2 (en) * | 1990-03-05 | 1997-10-15 | 株式会社村田製作所 | Resonator |
| JP2011071457A (en) * | 2008-12-22 | 2011-04-07 | Tdk Corp | Electronic component and manufacturing method of electronic component |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145114A (en) * | 1982-01-25 | 1983-08-29 | ティーディーケイ株式会社 | Lc composite part |
| JPS59223011A (en) * | 1983-06-01 | 1984-12-14 | Matsushita Electric Ind Co Ltd | Composite lc filter |
| JPS62151007A (en) * | 1985-12-25 | 1987-07-06 | Matsushita Electric Ind Co Ltd | Tuner |
| JPH0310809A (en) * | 1989-06-09 | 1991-01-18 | Gijutsu Shigen Kaihatsu Kk | Tube mortar lining device |
-
1988
- 1988-02-15 JP JP63032159A patent/JP2663270B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01208007A (en) | 1989-08-22 |
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