JPH1116763A - Porcelain capacitor - Google Patents

Porcelain capacitor

Info

Publication number
JPH1116763A
JPH1116763A JP16272997A JP16272997A JPH1116763A JP H1116763 A JPH1116763 A JP H1116763A JP 16272997 A JP16272997 A JP 16272997A JP 16272997 A JP16272997 A JP 16272997A JP H1116763 A JPH1116763 A JP H1116763A
Authority
JP
Japan
Prior art keywords
porcelain capacitor
lead wire
electrode
capacitor
projection
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.)
Withdrawn
Application number
JP16272997A
Other languages
Japanese (ja)
Inventor
Hirooki Naganuma
洋興 長沼
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.)
Mitsubishi Materials Corp
Original Assignee
Mitsubishi Materials Corp
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 Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Priority to JP16272997A priority Critical patent/JPH1116763A/en
Publication of JPH1116763A publication Critical patent/JPH1116763A/en
Withdrawn legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To enable a lead wire to be easily and efficiently connected to the electrode of a porcelain capacitor and to be protected against disconnection in use by a method, wherein the upper and lower surface of a circular porcelain capacitor except its periphery are recessed, and a projection is provided to the centers of the upper and lower surface respectively. SOLUTION: A circular porcelain capacitor 10 is provided with a dam-like part 11 and a recess 12 at its periphery and center respectively. A projection 13 nearly as high as the dam-like part 11 is provided to the center of the recess 12. An electrode is formed on the upper and lower surface of the porcelain capacitor base 10 respectively. Moreover, the electrodes are preferably formed through an electroless plating method. Then, the electrode attached to an unwanted part is removed by a grinder or the like, and a lead wire is bonded to the projection 13 with solder or the like. By this setup, a lead wire bonding operation can be carried out easily to improve the manufacture of a porcelain capacitor in efficiency, and the lead wire can be protected against disconnection in use.

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、一般の電気機器や電子
機器に用いられる円板形をした磁器コンデンサに係り、
特に電圧耐量が大きく、かつ製造が容易な磁器コンデン
サに係る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk-shaped porcelain capacitor used for general electric equipment and electronic equipment.
In particular, the present invention relates to a porcelain capacitor which has a large withstand voltage and is easy to manufacture.

【0002】[0002]

【従来の技術】近年電子機器等は高性能化、小型化、薄
型化が要求され、これに従いこれらの機器に用いられる
電子部品も小型化、薄型化、高性能化、高品質化するこ
とが要求されている。このことは、円板形をした磁器コ
ンデンサにおいても同様で、使用する誘電体材料の誘電
率を高くすることによって小型化、薄型化が図られてい
る。しかし、小型化すると電極面積が小さくなるので、
誘電率の高い誘電体材料を用いても電極間の距離が大き
いとコンデンサとしての静電容量値は低くなる。そこ
で、これを高くするために円板の中央部を凹状としその
部分に電極を形成したものが製造販売されている。しか
し、ただ単純に電極間距離を小さくすると高い電圧が印
加されるコンデンサでは電極間で絶縁破壊が生じ、コン
デンサとして用をなさないことがある。そこで、これを
防止するために、上記コンデンサの堰堤状部と凹状部の
境界部を垂直とするのではなく一定のRをつけ、電界集
中が生じないようにしたものも開発されている(実開平
3ー48217)。
2. Description of the Related Art In recent years, electronic devices and the like have been required to have high performance, miniaturization, and thinning, and accordingly, electronic components used in these devices have also been reduced in size, thickness, performance, and quality. Has been requested. The same applies to a disk-shaped porcelain capacitor. The size and thickness of the capacitor are increased by increasing the dielectric constant of the dielectric material used. However, downsizing reduces the electrode area,
Even if a dielectric material having a high dielectric constant is used, if the distance between the electrodes is large, the capacitance value as a capacitor will be low. Therefore, in order to increase the height, a disk having a concave central portion and an electrode formed on the concave portion is manufactured and sold. However, if the distance between the electrodes is simply reduced, a capacitor to which a high voltage is applied may cause insulation breakdown between the electrodes, and may not be used as a capacitor. In order to prevent this, a capacitor has been developed in which the boundary between the embankment-shaped portion and the recessed portion of the capacitor is not vertical but is provided with a constant radius so that electric field concentration does not occur. Kaihei 3-48217).

【0003】[0003]

【発明が解決する課題】しかし、上記のように中央部凹
状としたものは、リード線を上記凹状とした部分に接続
する必要があるので、電極の接続作業が困難で効率が悪
く、かつリード線を点でしか接着できないので、接着強
度が低く、使用時に外れるとの問題点があった。この事
は凸状部と凹状部の接触する面にRを設けたものも同様
である。
However, in the case of the concave shape at the center as described above, since it is necessary to connect the lead wire to the concave portion, the work of connecting the electrodes is difficult, the efficiency is low, and the lead is poor. Since the lines can be bonded only at points, there is a problem that the bonding strength is low and the wires come off during use. This is the same for the case where R is provided on the surface where the convex portion and the concave portion contact.

【0004】[0004]

【課題を解決するための手段】本発明は上記課題を解決
するためになされたものであり、その要旨とするところ
は、円板形磁器コンデンサの周辺部の一部を除いた上下
面を凹状とするとともにその中心部に凸状部を設けたこ
とを特徴とする。即ち上下面の大部分を凹状部とするこ
とにより取得容量を確保するとともに、その中心部を凸
状とすることによってリード線を線状で固定できるよう
にした。尚、本発明においては堰堤状部と凹状部の境界
部並びに凸状部と凹状部との境界部を一定のRをもたせ
ることができる。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the gist of the present invention is that the upper and lower surfaces of a disk-shaped porcelain capacitor except for a part thereof are concave. And a convex portion is provided at the center thereof. That is, the acquisition capacity is secured by making most of the upper and lower surfaces concave, and the lead wire can be fixed linearly by making the center part convex. In the present invention, the boundary between the bank and the concave and the boundary between the convex and the concave can have a constant radius.

【0005】[0005]

【発明の実施の態様】以下に本発明の実施の態様を製造
方法を記載することによって、説明する。本発明の磁器
コンデンサの基体には一般コンデンサ用の誘電体物質を
用いることができる。例えば、チタン酸バリウム系、チ
タン酸鉛系等のペロブスカイト類である。本発明に用い
る電極材としては、導電性を有するもののうちコンデン
サの素体である誘電性物質との接着性がよく、かつリー
ド線との濡れ性がよいことが要求される。電極形成法と
しては、金等の貴金属の焼付け法、銅、ニッケル等のメ
ッキ法等がある。また、電極は一つの層である必要はな
く、複数の層とすることができる。リード線はコンデン
サの使用環境に合わせて、銅線、ジュメット線等を用い
ることができる。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below by describing a manufacturing method. The dielectric substance for general capacitors can be used for the base of the ceramic capacitor of the present invention. For example, perovskites such as barium titanate and lead titanate are used. The electrode material used in the present invention is required to have good adhesiveness to a dielectric substance which is a body of a capacitor among conductive materials, and good wettability to a lead wire. Examples of the electrode forming method include a method of baking a noble metal such as gold and a method of plating copper and nickel. Also, the electrode need not be a single layer, but may be a plurality of layers. As the lead wire, a copper wire, a Dumet wire, or the like can be used according to the usage environment of the capacitor.

【0006】本発明品である磁器コンデンサは次の手順
に従って製造される。 (1)原料の調製を行なう。 (2)調製した原料を乾燥し仮焼を行なう。 (3)仮焼した原料をプレス型に入れ成形する。 この場合、仮焼を行なうことなく生原料のまま成形する
ことも可能である。(4)本焼成する。 (5)焼成した基体の上下面に電極を形成する。
The porcelain capacitor according to the present invention is manufactured according to the following procedure. (1) Prepare raw materials. (2) The prepared raw material is dried and calcined. (3) The calcined raw material is put into a press mold and molded. In this case, it is also possible to mold the raw material without performing calcination. (4) Main firing. (5) Form electrodes on the upper and lower surfaces of the fired substrate.

【0007】本発明において電極は、無電解メッキ法に
より形成させるのが、望ましい。電極形成に一般的に用
いられる印刷法では、基体の凹状部の全面にわたり均一
な電極を形成するのは困難だからである。 (6)外面側壁部に付着した電極を除去する。無電解メ
ッキ法によると素子全体に電極が形成されるので、不要
な部分に付着した電極をグラインダー等で除去する。 (7)凸部に半田等を用いてリード線を接着させる。
In the present invention, it is desirable that the electrodes are formed by an electroless plating method. This is because it is difficult to form a uniform electrode over the entire concave portion of the base by a printing method generally used for forming an electrode. (6) The electrode attached to the outer side wall is removed. According to the electroless plating method, an electrode is formed on the entire device, and the electrode attached to an unnecessary portion is removed by a grinder or the like. (7) A lead wire is bonded to the projection using solder or the like.

【0008】この際リード線は、誘電体物質を挟んで平
行した状態で接着させることもできるが、互いに交叉し
た状態で接着させることもできる。
At this time, the lead wires can be bonded in a state of being parallel to each other with a dielectric material interposed therebetween, or can be bonded in a state of crossing each other.

【0009】[0009]

【発明の効果】本発明の磁器コンデンサは、コンデンサ
基体の中心部に凸部を設け、この上部表面に電極を形成
し、この電極とリード線とを接着させるので、接着作業
が容易で製造効率が上がり、かつ使用時のリード線の外
れがない。
According to the porcelain capacitor of the present invention, a convex portion is provided at the center of the capacitor base, an electrode is formed on the upper surface, and the electrode and the lead wire are bonded to each other. And the lead wire does not come off during use.

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

【図1】本発明の磁器コンデンサの斜視図である。FIG. 1 is a perspective view of a porcelain capacitor of the present invention.

【図2】本発明の磁器コンデンサにリード線を接続した
ものの概念図である。
FIG. 2 is a conceptual diagram of a ceramic capacitor of the present invention in which a lead wire is connected.

【図3】図2の断面図である。 10 磁器コンデンサ 11 堰堤状部 12 凹状部 13 凸状部 14 電極 15 リード線FIG. 3 is a sectional view of FIG. 2; DESCRIPTION OF SYMBOLS 10 Porcelain capacitor 11 Embankment part 12 Concave part 13 Convex part 14 Electrode 15 Lead wire

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】周辺部に堰堤状部(11)を、中央部に凹
状部(12)を形成した円板形をした磁器コンデンサ
(10)において、前記凹状部の中心部に堰堤状部とほ
ぼ高さの等しい凸状部(13)を設けたことを特徴とす
る磁器コンデンサ。
1. A disk-shaped porcelain capacitor (10) having a dam-shaped portion (11) in a peripheral portion and a concave portion (12) in a central portion, wherein a dam-shaped portion is formed in the center of the concave portion. A porcelain capacitor characterized by comprising convex portions (13) having substantially the same height.
JP16272997A 1997-06-19 1997-06-19 Porcelain capacitor Withdrawn JPH1116763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16272997A JPH1116763A (en) 1997-06-19 1997-06-19 Porcelain capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16272997A JPH1116763A (en) 1997-06-19 1997-06-19 Porcelain capacitor

Publications (1)

Publication Number Publication Date
JPH1116763A true JPH1116763A (en) 1999-01-22

Family

ID=15760169

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16272997A Withdrawn JPH1116763A (en) 1997-06-19 1997-06-19 Porcelain capacitor

Country Status (1)

Country Link
JP (1) JPH1116763A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007037484A1 (en) 2005-09-30 2007-04-05 Kaneka Corporation Curable composition
WO2007037485A1 (en) 2005-09-30 2007-04-05 Kaneka Corporation Curable composition
EP2366733A2 (en) 2005-09-30 2011-09-21 Kaneka Corporation Curable composition improved in curability and storage stability

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007037484A1 (en) 2005-09-30 2007-04-05 Kaneka Corporation Curable composition
WO2007037485A1 (en) 2005-09-30 2007-04-05 Kaneka Corporation Curable composition
EP2366733A2 (en) 2005-09-30 2011-09-21 Kaneka Corporation Curable composition improved in curability and storage stability

Similar Documents

Publication Publication Date Title
JP6329977B2 (en) High density three-dimensional integrated capacitor
US9526174B2 (en) Multilayer ceramic electronic component and board having the same mounted thereon
US9024202B2 (en) Electronic chip component and board having the same mounted thereon
CN105814687B (en) Semiconductor packages and its mounting structure
JPS5816552A (en) Package for semiconductor element
US20130223038A1 (en) Module substrate and method for manufacturing module substrate
US6011683A (en) Thin multilayer ceramic capacitors
JP6483400B2 (en) Multilayer capacitor and mounting structure
JPH1116763A (en) Porcelain capacitor
JP2000216045A (en) Electronic component for surface packaging
JPH06511110A (en) Monolithic capacitor with variable capacitance
JP2001035990A (en) Semiconductor device
JP2587851Y2 (en) Multilayer capacitors
US10593484B2 (en) Electronic components
JPH1050879A (en) Surface mounting type electronic part
JPH08181445A (en) Ceramic multilayer board
JPH05347227A (en) Laminated thin film capacitor
IE54714B1 (en) Leadless chip carrier semiconductor integrated circuit device
US20230061638A1 (en) Electronic device
JPH05135991A (en) Electronic component for surface mounting
JP2004281470A (en) Wiring board
JP2004281471A (en) Wiring board
JPH07245233A (en) Thin-film capacitor
JPS6314464Y2 (en)
JP3187239B2 (en) Package for storing semiconductor elements

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20040907