JPS6152969B2 - - Google Patents
Info
- Publication number
- JPS6152969B2 JPS6152969B2 JP2888380A JP2888380A JPS6152969B2 JP S6152969 B2 JPS6152969 B2 JP S6152969B2 JP 2888380 A JP2888380 A JP 2888380A JP 2888380 A JP2888380 A JP 2888380A JP S6152969 B2 JPS6152969 B2 JP S6152969B2
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- discharge
- printed
- sheet
- sheets
- 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
Links
- 239000002131 composite material Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 22
- 239000003990 capacitor Substances 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000010304 firing Methods 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 2
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 2
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Ceramic Capacitors (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【発明の詳細な説明】
本発明は放電ギヤツプ付RC複合部品の製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an RC composite part with a discharge gap.
放電ギヤツプ付RC複合部品はコンデンサ素子
Ｃの電極間に空気を通る短絡放電路ができるよう
に対向放電電極を設け、さらにコンデンサ素子の
表面に抵抗体Ｒを焼付けたものから成る。従来の
この種の部品はコンデンサ用電極と誘電体層との
交互積層体を作り、別の作業で放電電極を固定
し、さらに別の作業で抵抗体を焼付ける等の面倒
な工程を必要とした。しかも、このような工程は
部品ごとに実行されたものであるから、最近のよ
うに部品が益々小型化して来ると品質の確保や量
産面などで問題が大きくなる。 The RC composite component with a discharge gap consists of a capacitor element C with opposing discharge electrodes provided so as to create a short-circuit discharge path through the air between the electrodes, and a resistor R baked onto the surface of the capacitor element. Conventional parts of this type require a tedious process such as creating an alternate stack of capacitor electrodes and dielectric layers, fixing the discharge electrode in a separate process, and baking the resistor in a separate process. did. Moreover, since such processes are performed for each part, as parts become smaller and smaller as they have been recently, problems with ensuring quality and mass production become more serious.
従つて、本発明は放電ギヤツプ付RC複合部品
を安価に大量に製造方法を提供することを目的と
する。 Therefore, an object of the present invention is to provide a method for manufacturing RC composite parts with discharge gaps in large quantities at low cost.
本発明の方法は印刷法とシート法を応用したも
のであり、従来全く試みられたことがない方法で
ある。 The method of the present invention applies a printing method and a sheet method, and is a method that has never been attempted before.
簡単に述べると、本発明の方法は誘電体粉末と
バインダーとより成る広い誘電体生シートを必要
枚数用意し、それらの片面または両面にコンデン
サ用電極及び放電用電極を多数印刷し、放電用電
極を印刷した誘電体生シートを該電極の中間部の
所で打抜いて放電用電極をギヤツプを有する２部
分に分離し、これらの誘電体シートを前記各種電
極が上下に整列するように重畳し、焼成し、前記
各種電極に整列する位置で焼成体表面に抵抗体を
印刷し、各複合部品に切断し、次で外部端子を複
合部品に印刷して前記コンデンサ用電極、放電用
電極及び抵抗体の各端を接続する外部端子とする
ことより成る。 Briefly stated, the method of the present invention involves preparing a required number of wide dielectric raw sheets made of dielectric powder and a binder, printing a large number of capacitor electrodes and discharge electrodes on one or both sides of the sheets, and forming discharge electrodes. The discharge electrode is separated into two parts with a gap by punching out the printed dielectric green sheet at the middle part of the electrode, and these dielectric sheets are overlapped so that the various electrodes are aligned vertically. , firing, printing resistors on the surface of the fired body at positions aligned with the various electrodes, cutting into each composite part, and then printing external terminals on the composite parts to form the capacitor electrode, discharge electrode, and resistor. It consists of an external terminal connecting each end of the body.
本発明の方法によると、複数の大面積の各誘電
体シートに多数の同じ構成部分（電極又は抵抗
体）を印刷し、重畳し、焼成するという大量生産
に適する方法が可能になり、また各部品の品質の
均一化が容易になる。 According to the method of the present invention, a method suitable for mass production in which a large number of identical components (electrodes or resistors) are printed on each of a plurality of large-area dielectric sheets, overlapped, and fired becomes possible, and each It becomes easier to equalize the quality of parts.
以下、図面に関連して本発明を詳しく説明す
る。第１―８図は本発明の１実施例による複合部
品の製造工程を示す。第１図のＡ，Ｂ，Ｃ，Ｄ，
Ｅは誘電体生シートである。誘電体生シートは酸
化チタン、チタン酸バリウム等の誘電体粉末をブ
チラール等のバインダーと混練りしたペーストを
例えば延伸して得たシートを半乾燥又は乾燥した
シートであり、複合部品の外形よりもずつと大き
い面積を有する。第１図において２，３，４はそ
れぞれ誘電体生シートＢ，Ｃ，Ｄ，の対応した位
置に印刷されるコンデンサ用電極、及び放電用電
極である。これらの電極は耐熱性の金属例えば
Ag―PdまたはPdの粉末をペースト状にした導電
ペーストを印刷して形成されるものである。シー
トＢに印刷されるコンデンサ用電極２は長方形で
あつて、シートＣに印刷される長方形のコンデン
サ用電極３に対して左方に一整にずれた状態で上
下に整列する（第９図参照）。シートＤに印刷さ
れる放電用電極４は線状をなし、その長さはコン
デンサ用電極２，３の総合的な長さにほぼ等しく
定められ、且つこれら電極２，３の下に整列する
（第９図参照）。シートＡ〜Ｅは別々に予め用意さ
れると良い。なお以下で説明するようにシートＥ
は省略してもかまわない。第２図に示すように、
シートＥには各放電用電極を貫くパンチ孔５を形
成する。これにより、放電用電極は２分され、し
かもシートＥの部分的除去によりエアギヤツプが
形成されることになる（第９図参照）。第３図の
工程において、上記のように形成された誘電体生
シートを適当な見当合せ手段を用いてＡ，Ｂ，
Ｃ，Ｄ，Ｅの順序に重ね、上下より圧縮して一体
化して予成形体６とする。 The invention will now be explained in detail in conjunction with the drawings. Figures 1-8 illustrate a process for manufacturing a composite part according to one embodiment of the present invention. A, B, C, D in Figure 1,
E is a dielectric green sheet. A dielectric raw sheet is a semi-dried or dried sheet obtained by stretching a paste made by kneading dielectric powder such as titanium oxide or barium titanate with a binder such as butyral, and is made by semi-drying or drying a sheet obtained by stretching a paste made by kneading dielectric powder such as titanium oxide or barium titanate with a binder such as butyral. It has a large area. In FIG. 1, numerals 2, 3, and 4 are capacitor electrodes and discharge electrodes printed at corresponding positions on dielectric raw sheets B, C, and D, respectively. These electrodes are made of heat-resistant metal e.g.
It is formed by printing a conductive paste made of Ag-Pd or Pd powder. The capacitor electrodes 2 printed on the sheet B are rectangular and are aligned vertically with a uniform shift to the left with respect to the rectangular capacitor electrodes 3 printed on the sheet C (see Figure 9). ). The discharge electrode 4 printed on the sheet D has a linear shape, its length is determined to be approximately equal to the total length of the capacitor electrodes 2 and 3, and it is aligned below these electrodes 2 and 3 ( (See Figure 9). It is preferable that the sheets A to E are prepared separately in advance. In addition, as explained below, sheet E
can be omitted. As shown in Figure 2,
A punch hole 5 is formed in the sheet E to pass through each discharge electrode. As a result, the discharge electrode is divided into two parts, and an air gap is formed by partially removing the sheet E (see FIG. 9). In the process shown in FIG. 3, the dielectric raw sheets formed as described above are aligned with
They are stacked in the order of C, D, and E and compressed from above and below to be integrated into a preformed body 6.
次に第４図に示すように、平行なＶ溝７、それ
らと直交する平行なＶ溝８、及び各交差点に略ひ
し形の貫通孔９をプレス機械により形成する。溝
７は各単位複合部の長辺に対応し、溝８は同じく
短辺に対応した位置に定める。従つて電極２，４
の右端は１つの溝８に整列し、一方電極３，４の
左端は他の溝８に整列する（第９図参照）。これ
らの溝及び貫通孔は焼結後に複合部品を切断する
際に、カツター等の切断手段を必要とせずに、力
を加えるだけで容易に分割することができる。 Next, as shown in FIG. 4, parallel V-grooves 7, parallel V-grooves 8 perpendicular to these, and approximately diamond-shaped through holes 9 at each intersection are formed using a press machine. The grooves 7 correspond to the long sides of each composite unit, and the grooves 8 are located at positions corresponding to the short sides. Therefore electrodes 2, 4
The right ends of the electrodes 3, 4 are aligned with one groove 8, while the left ends of the electrodes 3, 4 are aligned with the other groove 8 (see FIG. 9). These grooves and through holes can be easily divided by simply applying force when cutting the composite part after sintering, without requiring a cutting means such as a cutter.
このように製作された予成形体６を適当な焼成
温度に加熱して焼結する。これにより誘電体シー
トＡ〜Ｅは互に焼結して一体化した誘電体とな
り、同時に電極２，３，４も適当に融成する。 The preformed body 6 thus manufactured is heated to an appropriate firing temperature and sintered. As a result, the dielectric sheets A to E are sintered together to form an integrated dielectric, and at the same time, the electrodes 2, 3, and 4 are appropriately fused.
このようにして得た焼結体に第５図に示すよう
に抵抗体引出電極１０，１１を印刷する。例えば
銅、銀等の粉末を含有する公知の導電ペーストを
この電極１０，１１として用いる。乾燥後、第６
図に示すように抵抗体１２を引出電極１０，１１
及び誘電体表面に線状に印刷する。抵抗体として
は酸化ルテニウムを分散したバインダー等公知の
材料を用い、印刷後に比較的低温で焼付ける。こ
の作業が終つたら溝８に沿つて焼結体を分割す
る。第７図には、数個の複合部品が結合したまま
の部分的に切離された焼結体を示す。このような
状態の焼結体の上下面（第７図で）にはコンデン
サ用電極２，３、放電用電極４、及び引出電極１
０，１１の各端が露出しているから、第７図のよ
うに適当な支持体１３に保持させた導電ペースト
１４の層に焼結体の上下面を押しつけて外部端子
１５，１６を形成し、焼付ける。次に溝７に沿つ
て切断を行つて第８図の単一複合部品にする。 Resistor lead electrodes 10 and 11 are printed on the sintered body thus obtained, as shown in FIG. For example, a known conductive paste containing powders of copper, silver, etc. is used as the electrodes 10,11. After drying, the 6th
As shown in the figure, the resistor 12 is connected to the lead electrodes 10 and 11.
and printed in a line on the dielectric surface. The resistor is made of a known material such as a binder in which ruthenium oxide is dispersed, and is baked at a relatively low temperature after printing. After this work is completed, the sintered body is divided along the grooves 8. FIG. 7 shows a partially separated sintered body with several composite parts still connected. The capacitor electrodes 2 and 3, the discharge electrode 4, and the extraction electrode 1 are on the upper and lower surfaces of the sintered body in this state (as shown in FIG. 7).
Since each end of 0 and 11 is exposed, external terminals 15 and 16 are formed by pressing the upper and lower surfaces of the sintered body against a layer of conductive paste 14 held on a suitable support 13 as shown in FIG. and bake it. A cut is then made along groove 7 to produce the single composite part of FIG.
第９図は完成した複合部品の内部構造を示す断
面図である。焼結誘電体ないしセラミツク基質の
中にコンデンサ用電極２，３、放電用電極４が埋
込まれており、しかも放電用電極のギヤツプ５は
複合部品の中に完全に封じられている。従つて、
放電ギヤツプは外気の条件を受けないで済む。表
面には抵抗体１２が形成され、そしてこれら要素
の左右露出端は外部端子１５，１６によつて総括
されている。従つて、この複合部品はプリント基
板へ直接に半田付けが可能となり、また立方体形
のために自動半田付けも容易である。 FIG. 9 is a sectional view showing the internal structure of the completed composite part. The capacitor electrodes 2, 3 and the discharge electrode 4 are embedded in a sintered dielectric or ceramic substrate, and the gap 5 of the discharge electrode is completely enclosed within the composite part. Therefore,
The discharge gap is not subject to outside air conditions. A resistor 12 is formed on the surface, and the left and right exposed ends of these elements are connected by external terminals 15 and 16. Therefore, this composite component can be soldered directly to a printed circuit board, and its cubic shape also facilitates automatic soldering.
なお、上記の実施例において、第３図の積層工
程でシートＥを省略してもかまわない。この場合
には放電ギヤツプは外部に露出する。 In the above embodiment, the sheet E may be omitted in the lamination process shown in FIG. 3. In this case, the discharge gap is exposed to the outside.
第１０図は本発明の第２実施例による放電ギヤ
ツプ付RC複合部品を示す。製造工程の詳細は省
略するが、第１図から第６図と同一の工程を行
い、さらにエポキシ樹脂などの被覆１７を行い、
最後に外部端子１５，１６を焼付けて第１０図の
構造の放電ギヤツプ付RC複合回路とすることが
できる。 FIG. 10 shows an RC composite part with a discharge gap according to a second embodiment of the present invention. Although details of the manufacturing process are omitted, the same steps as shown in FIGS. 1 to 6 are performed, and a coating 17 of epoxy resin or the like is further applied.
Finally, the external terminals 15 and 16 are baked to form an RC composite circuit with a discharge gap having the structure shown in FIG.
第１０図と同様な構造は次のようにしても得ら
れる。第１〜８図を借りて説明するに、先ず第１
図のＡ〜Ｅのシートの外に、同じ材料のもう一枚
のシート１７（第１０図参照）を用意し、これを
シートＡの上に積層すべきものとする。またシー
トＡには酸化ルテニウム等の抵抗体をシートＤに
おける放電用電極４と同様に印刷し、第２ないし
４図の工程を行つた上、焼成を行う。次に切溝８
に沿つた切断を行うと、その切断端面は抵抗体１
２、コンデンサ用電極２，３、及び放電用電極４
が露出するので、第７図について説明した外部端
子１５，１６の焼付及び溝７に沿うカツトを行つ
て第１０図の複合部品を完成することができる。
本例では抵抗体の表面が保護される。 A structure similar to that shown in FIG. 10 can also be obtained as follows. To explain using Figures 1 to 8, first,
In addition to the sheets A to E in the figure, another sheet 17 (see FIG. 10) of the same material is prepared and is to be laminated on top of sheet A. Further, a resistor such as ruthenium oxide is printed on the sheet A in the same manner as the discharge electrode 4 on the sheet D, and the steps shown in FIGS. 2 to 4 are performed, followed by firing. Next, kerf 8
When cutting along the line, the cut end surface becomes resistor 1
2. Capacitor electrodes 2 and 3, and discharge electrode 4
10 is exposed, the composite part shown in FIG. 10 can be completed by baking the external terminals 15, 16 and cutting along the groove 7 as described in connection with FIG.
In this example, the surface of the resistor is protected.
以上のように、本発明はシート状の複数の誘電
体に各要素を印刷し、１枚のみにパンチを行つて
放電ギヤツプを形成し、積層し、焼成して、カツ
トし、対向する縁部に外部端子をつけるという簡
単な方法ですぐれた構造の小型の放電ギヤツプ付
RC複合部品を大量安価に製造することを可能に
するのである。 As described above, the present invention prints each element on a plurality of sheet-like dielectric materials, punches only one sheet to form a discharge gap, laminates the sheets, fires them, cuts them, and forms the opposite edges. Comes with a compact discharge gap with an excellent structure that can be easily connected to an external terminal.
This makes it possible to manufacture RC composite parts in large quantities at low cost.
第１図ないし第４図は本発明の第１実施例によ
る複合部品の製造方法における焼成前の工程を示
す斜視図、第５図Ａは引出し電極印刷工程を示す
斜視図、第５図Ｂは同拡大平面図、第６図Ａは抵
抗体の焼付工程の斜視図、第６図Ｂは同拡大平面
図、第７図は外部端子を付着する工程を示す正面
図、第８図は切断した単一複合部品の平面図、第
９図は同拡大断面図、及び第１０図は本発明の他
の実施例を示す断面図である。図中主な部分は次
の通りである。
Ａ，Ｂ，Ｃ，Ｄ，Ｅ：誘電体生シート、２，
３：コンデンサ用電極、４：放電用電極、５：パ
ンチ孔、７，８：切溝、９：貫通孔、１０，１
１：引出電極、１２：抵抗体、１５，１６：外部
端子。
1 to 4 are perspective views showing the steps before firing in the method for manufacturing a composite part according to the first embodiment of the present invention, FIG. 5A is a perspective view showing the extraction electrode printing process, and FIG. FIG. 6A is a perspective view of the resistor baking process, FIG. 6B is an enlarged plan view of the same, FIG. 7 is a front view showing the process of attaching external terminals, and FIG. 8 is a cutaway view. FIG. 9 is a plan view of a single composite part, FIG. 9 is an enlarged sectional view thereof, and FIG. 10 is a sectional view showing another embodiment of the present invention. The main parts in the figure are as follows. A, B, C, D, E: dielectric raw sheet, 2,
3: Electrode for capacitor, 4: Electrode for discharge, 5: Punch hole, 7, 8: Cut groove, 9: Through hole, 10, 1
1: extraction electrode, 12: resistor, 15, 16: external terminal.
Claims (1)
の誘電体シートと、放電用電極が印刷されるとと
もにその放電用電極を分断するように形成された
穿孔を有するシートとを重畳合体して焼成し、次
いでこうして得られた焼結体の表面に抵抗体およ
び一対の外部端子を形成する放電ギヤツプ付RC
複合部品の製造方法。 ２ 前記少くとも２枚の誘電体シートには、縦方
向および横方向にそれぞれ列をなしている複数個
のコンデンサ用電極を印刷し、他の一枚には前記
複数個のコンデンサ用電極に対応する複数個の放
電用電極を印刷してこの放電用電極を分割する穿
孔を形成し、これらのシートを重畳合体した後、
これらのシートを複数の部分に分割するように縦
方向および横方向の溝を形成するとともにこれら
の縦方向および横方向の溝の交点には貫通孔を形
成し、焼成後この溝にそつて複数個に分割するこ
とを特徴とする特許請求の範囲第１項記載の放電
ギヤツプ付RC複合部品の製造方法。 ３ コンデンサ用電極が印刷された少くとも２枚
の誘電体シートと、放電用電極が印刷されるとと
もにその放電用電極を分断するように形成された
穿孔を有するシートと、抵抗体が印刷されたシー
トとを重畳合体して焼成し、次いでこうして得ら
れた焼結体の表面に一対の外部端子を形成する放
電ギヤツプ付RC複合部品の製造方法。[Claims] 1. At least two dielectric sheets on which capacitor electrodes are printed, and a sheet on which discharge electrodes are printed and has perforations formed to separate the discharge electrodes. RC with a discharge gap, which is superimposed and combined and fired, and then a resistor and a pair of external terminals are formed on the surface of the sintered body thus obtained.
Method of manufacturing composite parts. 2 A plurality of capacitor electrodes arranged in rows in the vertical and horizontal directions are printed on the at least two dielectric sheets, and the other sheet is printed with a plurality of capacitor electrodes corresponding to the plurality of capacitor electrodes. After printing a plurality of discharge electrodes, forming perforations that divide the discharge electrodes, and superimposing and combining these sheets,
Vertical and horizontal grooves are formed to divide these sheets into multiple parts, and through holes are formed at the intersections of these vertical and horizontal grooves, and after firing, a plurality of holes are formed along these grooves. A method for manufacturing an RC composite part with a discharge gap according to claim 1, characterized in that the RC composite part with a discharge gap is divided into pieces. 3 At least two dielectric sheets on which capacitor electrodes are printed, a sheet on which a discharge electrode is printed and has perforations formed to separate the discharge electrodes, and a resistor on which a resistor is printed. A method for manufacturing an RC composite part with a discharge gap, in which a pair of external terminals is formed on the surface of the sintered body obtained by superimposing and sintering sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2888380A JPS56125826A (en) | 1980-03-07 | 1980-03-07 | Method of producing rc composite part with discharging gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2888380A JPS56125826A (en) | 1980-03-07 | 1980-03-07 | Method of producing rc composite part with discharging gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56125826A JPS56125826A (en) | 1981-10-02 |
| JPS6152969B2 true JPS6152969B2 (en) | 1986-11-15 |
Family
ID=12260791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2888380A Granted JPS56125826A (en) | 1980-03-07 | 1980-03-07 | Method of producing rc composite part with discharging gap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56125826A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6240420Y2 (en) * | 1980-07-02 | 1987-10-16 | ||
| KR20150135909A (en) * | 2014-05-26 | 2015-12-04 | 삼성전기주식회사 | Composite electronic component, manufacturing method thereof, board for mounting the same and packing unit thereof |
| KR102127810B1 (en) * | 2017-09-28 | 2020-06-29 | 삼성전기주식회사 | Composite electronic component, manufacturing method thereof, board for mounting the same and packing unit thereof |
| KR102127809B1 (en) * | 2017-12-13 | 2020-07-09 | 삼성전기주식회사 | Composite electronic component, manufacturing method thereof, board for mounting the same and packing unit thereof |
-
1980
- 1980-03-07 JP JP2888380A patent/JPS56125826A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56125826A (en) | 1981-10-02 |
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