JPH0342490B2 - - Google Patents
Info
- Publication number
- JPH0342490B2 JPH0342490B2 JP59144434A JP14443484A JPH0342490B2 JP H0342490 B2 JPH0342490 B2 JP H0342490B2 JP 59144434 A JP59144434 A JP 59144434A JP 14443484 A JP14443484 A JP 14443484A JP H0342490 B2 JPH0342490 B2 JP H0342490B2
- Authority
- JP
- Japan
- Prior art keywords
- saw blade
- degrees
- metallized film
- cutting
- multilayer capacitor
- 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
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- 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、金属化フイルム積層コンデンサの製
造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method of manufacturing a metallized film multilayer capacitor.
（従来例の構成とその問題点）
従来、積層コンデンサの電極間絶縁は、金属と
誘電体とを同時に切断するため、誘電体の厚さで
得られている。(Structure of conventional example and its problems) Conventionally, insulation between the electrodes of a multilayer capacitor is obtained by cutting the metal and the dielectric at the same time, so that the insulation is obtained by the thickness of the dielectric.
しかし、従来の積層コンデンサの製造方法は、
切断刃で切断し易くするため、すくい角を＋θ1で
０度から10度とするのが一般的であり、さらに切
削角θ2を45度以上にして切断しているが、この方
法によると、切断面の状態にばらつきが発生し、
そのためコンデンサの対向する蒸着金属電極間の
絶縁距離が充分確保できず、絶縁抵抗不良となる
欠点があつた。 However, the conventional manufacturing method of multilayer capacitors is
In order to make it easier to cut with the cutting blade, it is common to set the rake angle to +θ 1 from 0 degrees to 10 degrees, and to cut at the cutting angle θ 2 of 45 degrees or more, but according to this method, , variations occur in the condition of the cut surface,
Therefore, a sufficient insulation distance between the opposing vapor-deposited metal electrodes of the capacitor could not be secured, resulting in poor insulation resistance.
（発明の目的）
本発明の目的は、従来例の欠点を解消し、切断
面における絶縁抵抗等の電気的特性を高め、品質
の安定した金属化フイルム積層コンデンサの製造
方法を提供することにある。(Objective of the Invention) An object of the present invention is to provide a method for manufacturing a metallized film multilayer capacitor with stable quality, which eliminates the drawbacks of conventional examples and improves electrical characteristics such as insulation resistance at the cut surface. .
（発明の構成）
本発明の金属化フイルム積層コンデンサの製造
方法は、メタリコン電極が形成された金属化フイ
ルム積層コンデンサの母素子を鋸刃によつて切断
して所定の単位素子に分割する金属化フイルム積
層コンデンサの製造方法において、前記鋸刃のす
くい角（−θ1）を、
−20度≦θ1≦０度
とし、前記母素子に対する鋸刃の切削角（θ2）
を、
25度≦θ2≦45度
とすることにより、金属フイルムの端面と金属層
の縁端部との間に絶縁距離を設けるようにしたも
のである。(Structure of the Invention) The method for manufacturing a metallized film multilayer capacitor of the present invention involves cutting a mother element of a metallized film multilayer capacitor on which a metallized electrode is formed with a saw blade to divide it into predetermined unit elements. In the method for manufacturing a film multilayer capacitor, the rake angle (-θ 1 ) of the saw blade is -20 degrees ≦ θ 1 ≦0 degrees, and the cutting angle (θ 2 ) of the saw blade with respect to the mother element is
By setting 25 degrees≦θ 2 ≦45 degrees, an insulating distance is provided between the end face of the metal film and the edge of the metal layer.
（実施例の説明）
以下、本発明の一実施例を図面に基づいて説明
する。(Description of Embodiment) Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図において、細長く積層されたコンデンサ
（母素子）１を切断刃である鋸刃２により、１個
ずつのコンデンサ（単位素子）３に切断する。 In FIG. 1, a long and thin stacked capacitor (base element) 1 is cut into individual capacitors (unit elements) 3 by a saw blade 2, which is a cutting blade.
前記コンデンサ（単位素子）３の切断面は、第
２図に示すように、公知のフイルム状の金属（金
属化フイルム：フイルム材料としては、例えばエ
ステル系フイルム、エーテル系フイルム、オレフ
イン系フイルムがあげられる）４と誘電体５，６
とからなる積層構造であり、金属溶射で端部に電
極（メタリコン電極）７を引き出すようにしてい
る。 As shown in FIG. 2, the cut surface of the capacitor (unit element) 3 is made of a known film-like metal (metallized film; film materials include, for example, ester film, ether film, and olefin film). ) 4 and dielectrics 5 and 6
It has a laminated structure consisting of , and an electrode (metallicon electrode) 7 is drawn out at the end by metal spraying.
ところで前記鋸刃２は、第３図に示すように、
刃のすくい角（θ1）を中心より正方向（＋θ1）に
振つた場合（第３図において、一点鎖線は鋸刃２
の刃先と鋸刃の中心をむすぶ線である。図の下方
が鋸刃の中心側である）と、負の方向（−θ1）に
振つた場合では、第４図に示すように、コンデン
サ（単位素子）３の表面に対して前記すくい角
（θ1）に基づいて形成される角度（切削角θ2）が
変わることになる。 By the way, the saw blade 2, as shown in FIG.
When the rake angle (θ 1 ) of the blade is swung in the positive direction (+θ 1 ) from the center (in Figure 3, the dashed line is the saw blade 2
This is the line connecting the cutting edge of the saw blade and the center of the saw blade. The lower part of the figure is the center side of the saw blade), and when the saw blade is swung in the negative direction (-θ 1 ), the rake angle with respect to the surface of the capacitor (unit element) 3 is as shown in FIG. The angle (cutting angle θ 2 ) formed based on (θ 1 ) will change.
そして実験の結果、前記鋸刃２の前記すくい角
（−θ1）を、
−20度≦−θ1≦０度 ……(1)
とし、さらに前記母素子に対する鋸刃の切削角
（θ2）を、
25度≦θ2≦45度 ……(2)
とすると、前記金属化フイルム４は、切断時に鋸
刃２により伸びながら切られることになり、第５
図に示したように、切断後には伸ばされた金属化
フイルム４のフイルム端面と金属層の縁端部との
間に、金属分離幅（絶縁距離）Ａが得られること
が分かつた。 As a result of the experiment, the rake angle (-θ 1 ) of the saw blade 2 was set to -20 degrees ≦-θ 1 ≦0 degrees (1), and the cutting angle (θ 2 ) of the saw blade with respect to the mother element was set to ) is 25 degrees≦θ 2 ≦45 degrees (2), the metallized film 4 will be cut while being stretched by the saw blade 2 during cutting, and the fifth
As shown in the figure, it was found that after cutting, a metal separation width (insulation distance) A was obtained between the film end surface of the stretched metallized film 4 and the edge of the metal layer.
実験による各特性の状態を第６図に示した。す
くい角（θ1）がθ1＞０度で、切削角（θ2）がθ2＜
25度、θ2＞45度であれば、金属化フイルム４が切
れ易くなつて、所望の前記絶縁距離Ａが得られ
ず、前縁抵抗が低く、かつ歩留まりも低下してい
る。またすくい角（θ1）が−θ1＜−20度で、切削
角（θ2）がθ2＜25度、θ2＞45度であれば、金属化
フイルム４が溶け、鋸刃２に目づまりを生じ、ま
た絶縁抵抗が低く、歩留まりも低下した。 FIG. 6 shows the state of each characteristic according to the experiment. The rake angle (θ 1 ) is θ 1 >0 degrees, and the cutting angle (θ 2 ) is θ 2 <
25 degrees and θ 2 >45 degrees, the metallized film 4 tends to break, making it impossible to obtain the desired insulation distance A, resulting in low leading edge resistance and low yield. Furthermore, if the rake angle (θ 1 ) is −θ 1 <−20 degrees and the cutting angle (θ 2 ) is θ 2 <25 degrees and θ 2 >45 degrees, the metallized film 4 will melt and the saw blade 2 will melt. Clogging occurred, insulation resistance was low, and yield was reduced.
一方、本実施例の上記の(1)、(2)式を満足する範
囲では、前記絶縁距離Ａが2μｍ以上となり、絶
縁抵抗及び歩留まりが良好となつた。 On the other hand, in the range satisfying the above formulas (1) and (2) of this example, the insulation distance A was 2 μm or more, and the insulation resistance and yield were good.
本実施例で良好な結果を生じるのは、鋸刃２の
角度を負の方向（−θ1）に振ることにより、切削
角（θ2）が減少し、切断時に金属化フイルム４に
与える引張り力と摩擦熱で金属化フイルム４を伸
ばすことにより、フイルム面上の金属が第５図の
ように斑点状に分離し、金属分離幅（絶縁距離）
Ａが得られ、切断面における縁面距離が広がり、
電極間絶縁を誘電体５，６の厚さだけに頼るので
はなく、安定した特性が得られるようになるので
ある。 The reason why good results are obtained in this example is that by swinging the angle of the saw blade 2 in the negative direction (-θ 1 ), the cutting angle (θ 2 ) is reduced, and the tension applied to the metallized film 4 during cutting is reduced. By stretching the metallized film 4 with force and frictional heat, the metal on the film surface separates into spots as shown in Figure 5, and the metal separation width (insulation distance)
A is obtained, and the edge distance at the cut surface increases,
Instead of relying solely on the thickness of the dielectrics 5 and 6 for interelectrode insulation, stable characteristics can be obtained.
（発明の効果）
本発明によれば、メタリコン電極が形成された
金属化フイルム積層コンデンサの母素子を切断し
て単位素子を形成する鋸刃において、鋸刃の中心
より負の方向に振つた場合のすくい角（−θ1）と
母素子に対する鋸刃の切削角（θ2）との範囲を特
定することにより、金属化フイルムの端面と金属
層の縁端部との間に充分（2μｍ以上）の絶縁距
離を設けることができ、絶縁抵抗を高めることが
でき、歩留まりが向上する金属化フイルム積層コ
ンデンサの製造方法を提供することができる。(Effects of the Invention) According to the present invention, in a saw blade for cutting a mother element of a metallized film multilayer capacitor on which a metallicon electrode is formed to form a unit element, when the saw blade is swung in a negative direction from the center of the saw blade, By specifying the range of the rake angle (-θ 1 ) of the saw blade and the cutting angle (θ 2 ) of the saw blade relative to the base element, it is possible to ensure that there is a sufficient distance (2 μm or more) between the end face of the metallized film and the edge of the metal layer. ), it is possible to provide a method for manufacturing a metallized film multilayer capacitor, which can increase insulation resistance and improve yield.
第１図は積層コンデンサの切断状態を示す斜視
図、第２図は積層コンデンサの切断面を示す斜視
図、第３図は切断刃の形状図、第４図は切削角度
を示す説明図、第５図は本発明による切断刃の角
度で切削した場合の積層コンデンサにおける金属
分離幅（絶縁距離）の状態を示す斜視図、第６図
は切断刃の各種角度で切断した積層コンデンサの
特性を示す図である。
１……積層コンデンサ（母素子）、２……切断
刃（鋸刃）、３……積層コンデンサ（単位素子）、
４……フイルム面上の金属、５，６……誘電体、
７……電極を引き出す溶射金属、Ａ……金属分離
幅（絶縁距離）、θ1……すくい角、θ2……切削角。
Fig. 1 is a perspective view showing the cutting state of the multilayer capacitor, Fig. 2 is a perspective view showing the cut surface of the multilayer capacitor, Fig. 3 is a diagram showing the shape of the cutting blade, Fig. 4 is an explanatory diagram showing the cutting angle, Figure 5 is a perspective view showing the state of metal separation width (insulation distance) in a multilayer capacitor cut at various angles of the cutting blade according to the present invention, and Figure 6 shows the characteristics of multilayer capacitors cut at various angles of the cutting blade. It is a diagram. 1... Multilayer capacitor (mother element), 2... Cutting blade (saw blade), 3... Multilayer capacitor (unit element),
4... Metal on the film surface, 5, 6... Dielectric material,
7...Sprayed metal for drawing out the electrode, A...Metal separation width (insulation distance), θ1 ...rake angle, θ2 ...cutting angle.
Claims (1)
積層コンデンサの母素子を鋸刃によつて切断して
所定の単位素子に分割する金属化フイルム積層コ
ンデンサの製造方法において、前記鋸刃のすくい
角（−θ1）を、 −20度≦−θ1≦０度 とし、前記母素子に対する鋸刃の切削角（θ2）
を、 25度≦θ2≦45度 とすることにより、金属化フイルムの端面と金属
層の縁端部との間に絶縁距離を設けることを特徴
とする金属化フイルム積層コンデンサの製造方
法。[Scope of Claims] 1. A method for manufacturing a metallized film multilayer capacitor in which a mother element of a metallized film multilayer capacitor on which a metallicon electrode is formed is cut with a saw blade to divide it into predetermined unit elements, wherein the saw blade The rake angle (-θ 1 ) of the saw blade is -20 degrees ≦-θ 1 ≦0 degrees, and the cutting angle (θ 2 ) of the saw blade with respect to the mother element is
A method for producing a metallized film multilayer capacitor, characterized in that an insulating distance is provided between the end face of the metallized film and the edge of the metal layer by setting 25 degrees ≦ θ 2 ≦ 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14443484A JPS6124218A (en) | 1984-07-13 | 1984-07-13 | Method of producing metallized film laminated capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14443484A JPS6124218A (en) | 1984-07-13 | 1984-07-13 | Method of producing metallized film laminated capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6124218A JPS6124218A (en) | 1986-02-01 |
| JPH0342490B2 true JPH0342490B2 (en) | 1991-06-27 |
Family
ID=15362110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14443484A Granted JPS6124218A (en) | 1984-07-13 | 1984-07-13 | Method of producing metallized film laminated capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6124218A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63213335A (en) * | 1987-02-28 | 1988-09-06 | マルコン電子株式会社 | Manufacture of laminated film capacitor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2308841A1 (en) * | 1973-02-22 | 1974-09-05 | Siemens Ag | METHOD OF MANUFACTURING LAYERED OR STACKED CAPACITORS |
| JPS53146158A (en) * | 1977-05-25 | 1978-12-19 | Matsushita Electric Industrial Co Ltd | Manufacturing method of laminated capacitor element |
| JPS58176916A (en) * | 1982-04-09 | 1983-10-17 | Matsushita Refrig Co | Manufacture of transfer-molded coil |
| JPS58176919A (en) * | 1982-04-09 | 1983-10-17 | 松下電器産業株式会社 | Method of producing metallized film laminated condenser |
-
1984
- 1984-07-13 JP JP14443484A patent/JPS6124218A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6124218A (en) | 1986-02-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |