JPH09107158A - Insulation board for chip components - Google Patents

Insulation board for chip components

Info

Publication number
JPH09107158A
JPH09107158A JP28618096A JP28618096A JPH09107158A JP H09107158 A JPH09107158 A JP H09107158A JP 28618096 A JP28618096 A JP 28618096A JP 28618096 A JP28618096 A JP 28618096A JP H09107158 A JPH09107158 A JP H09107158A
Authority
JP
Japan
Prior art keywords
grooves
corners
insulating substrate
side surfaces
ceramic substrate
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
JP28618096A
Other languages
Japanese (ja)
Other versions
JP2707440B2 (en
Inventor
Nobuhiko Nakai
信彦 中井
Masazumi Miyama
正純 深山
Masato Shimada
真人 嶋田
Takumi Yamashita
卓巳 山下
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.)
Hokuriku Electric Industry Co Ltd
Original Assignee
Hokuriku Electric Industry 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 Hokuriku Electric Industry Co Ltd filed Critical Hokuriku Electric Industry Co Ltd
Priority to JP8286180A priority Critical patent/JP2707440B2/en
Publication of JPH09107158A publication Critical patent/JPH09107158A/en
Application granted granted Critical
Publication of JP2707440B2 publication Critical patent/JP2707440B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/03Use of materials for the substrate
    • H05K1/0306Inorganic insulating substrates, e.g. ceramic, glass
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/0097Processing two or more printed circuits simultaneously, e.g. made from a common substrate, or temporarily stacked circuit boards

Landscapes

  • Structure Of Printed Boards (AREA)

Abstract

PROBLEM TO BE SOLVED: To manufacture the chip components, with excellent surface property, without a burr or a crack and of high quality, with excellent yield. SOLUTION: Grooves 1 and 2 are formed on a ceramic board, from which multiple insulation boards 4 of chip components can be obtained, vertically and horizontally and the corner parts of the side edges of the grooves 1 and 2 are formed in a convex round shape continuing from the side surfaces of the grooves 1 and 2 smoothly. Each of the side surfaces of the corner parts 3a, that are in the four directions of the intersecting part of the grooves 1 and 2 of which side surfaces are formed in a round shape with a radius of curvature larger that the width of the groove, is formed with a convex spherical shape smoothly continuing from the side surfaces of the grooves 1 and 2. In insulating boards 4 that are formed by separating the ceramic board, each of the shape of the corner parts 1a and 1b of the insulating boards 4, that are in the four directions after the separation formed by the intersection of the side surfaces and the front surface, is formed in a convex round shape continuing from the side surfaces and the front surface smoothly and the corner parts 3a, that is the intersection of the a pair of the side surfaces and the front surface of the insulating board 4, are formed in a convex spherical form continuing smoothly from the side surfaces and the front surface.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、いわゆるチップ状の
電子部品の絶縁基板を形成するセラミック基板とそのセ
ラミック基板を用いたチップ部品の絶縁基板に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic substrate for forming a so-called chip-shaped electronic component insulating substrate and a chip component insulating substrate using the ceramic substrate.

【0002】[0002]

【従来の技術】従来、例えばチップ抵抗器の絶縁基板を
セラミックスで形成する場合、特開昭58−30118
号公報に開示されているように、セラミックスの焼成前
のグリーンシートに所定の刃よって縦横に細い溝を形成
し、焼成後この溝に沿って分割して個々のチップ抵抗器
の絶縁基板を得ていた。
2. Description of the Related Art Conventionally, for example, when an insulating substrate of a chip resistor is formed of ceramics, Japanese Patent Laid-Open No. 58-30118 discloses
As disclosed in Japanese Unexamined Patent Publication, a narrow groove is formed vertically and horizontally by a predetermined blade on a green sheet before firing of ceramics, and after firing, the substrate is divided along the groove to obtain an insulating substrate of each chip resistor. I was

【0003】この溝は、柔らかいグリーンシートに金型
の刃を押し付けて形成されているものであり、縦方向と
横方向の溝は、別々に専用の金型で順次設けていた。こ
れは、分割用の溝がきわめて細く浅いものであるため、
縦横の刃を交差させた状態で金型に取り付けることがで
きなかったためである。
The grooves are formed by pressing a blade of a mold against a soft green sheet, and the grooves in the vertical and horizontal directions are separately provided in order by a dedicated mold. This is because the dividing grooves are very thin and shallow,
This is because it could not be attached to the mold with the vertical and horizontal blades intersecting.

【0004】また、実開昭62−204366号公報に
開示されているように、チップ部品の絶縁基板を分割し
て形成するセラミック基板の、各チップ部品のコーナー
部に、正方形の貫通孔を形成したものも提案されてい
る。そして、各チップ部品毎に絶縁基板に分割する溝
を、V字状またはU字状に形成しているものである。
Further, as disclosed in Japanese Utility Model Laid-Open Publication No. Sho 62-204366, a square through hole is formed in a corner portion of each chip component of a ceramic substrate formed by dividing an insulating substrate of the chip component. Some have been proposed. Further, a groove to be divided into an insulating substrate for each chip component is formed in a V-shape or a U-shape.

【0005】[0005]

【発明が解決しようとする課題】上記従来の技術の前者
場合、柔らかいグリーンシート10に縦方向と横方向に
別々に刃を押しつけて溝を形成するため、図6に示すよ
うに、先に形成した溝11に後から形成した溝12によ
る盛り上り部13ができてしまうという問題があった。
従って、グリーンシート10を焼成してセラミック基板
を得た後、溝11、12に沿ってこれを分割すると、盛
り上り部13の部分は肉厚が厚いので、きれいに割れ
ず、図7に示すように分割後のチップ部品の絶縁基板1
4の角の部分で盛り上り部13がバリとして残ってしま
うという欠点が生じていた。
In the former case of the above prior art, grooves are formed by pressing blades separately on the soft green sheet 10 in the vertical and horizontal directions, so that the grooves are formed first as shown in FIG. There is a problem that the raised portion 13 is formed by the groove 12 formed later in the formed groove 11.
Accordingly, when the green sheet 10 is fired to obtain a ceramic substrate and then divided along the grooves 11 and 12, when the bulging portion 13 is thick, the portion is not cracked cleanly as shown in FIG. Insulating substrate 1 for chip components after splitting
At the corner of No. 4, the raised portion 13 remains as a burr.

【0006】さらに、縦横の溝11、12の交差部は単
に溝11、12が直交しているだけなので、分割後のチ
ップ部品の絶縁基板の角部は直角状態のままバリによる
突起または欠けた部分が表れ、角部分の表面が粗く、し
かも分割の際に角の部分にヒビ等が入りやすく、チップ
部品製造の歩留低下の原因にもなっていた。
Further, the intersection of the vertical and horizontal grooves 11 and 12 is simply that the grooves 11 and 12 are orthogonal to each other. Therefore, the corners of the insulated substrate of the chip component after division have been projected or chipped by burrs in a right angle state. The portion appears, the surface of the corner portion is rough, and cracks and the like are apt to be formed in the corner portion at the time of division, which causes a reduction in the yield of chip component manufacturing.

【0007】また上記従来の技術の後者の場合、セラミ
ック基板を分割する溝が交差した部分に貫通孔が形成さ
れているが、その分割部分の角部が滑らかなものではな
く、側縁の角部及びコーナー部には、角があり、分割時
にバリや欠けが生じやすく、クラック等も発生しやすい
ものであった。
In the latter case of the above-mentioned prior art, a through hole is formed at a portion where the groove for dividing the ceramic substrate intersects. However, the corner of the divided portion is not smooth, and the corner of the side edge is not formed. The portions and corners had corners, and burrs and chips were apt to occur during division, and cracks and the like were also likely to occur.

【0008】この発明は上記従来の技術に鑑み成された
もので、表面性状が良好で、バリや欠けがなく高品質な
ものを歩留良く製造することができるセラミック基板
と、これを分割して形成したチップ部品の絶縁基板を提
供することを目的とする。
The present invention has been made in view of the above-mentioned prior art, and has a ceramic substrate capable of producing a high-quality substrate with good surface properties and without burrs or chips at a high yield. An object of the present invention is to provide an insulating substrate of a chip component formed by the above method.

【0009】[0009]

【課題を解決するための手段】この発明は、チップ抵抗
器やチップコンデンサ等のチップ部品の絶縁基板を多数
個取りするセラミック基板において、縦横に各々複数本
の溝が形成され、溝の側縁の角部が凸面状に丸みを帯び
て上記溝の側面から滑らかに連続して形成されているセ
ラミック基板である。また、この溝の交差部の四方の角
部の側面が、上記溝の幅より大きい曲率半径を有する丸
みを帯びて上記溝の側面から滑らかに連続した凸面の球
面状に各々形成されているセラミック基板である。
SUMMARY OF THE INVENTION The present invention relates to a ceramic substrate for forming a large number of insulating substrates for chip components such as chip resistors and chip capacitors. Is a ceramic substrate whose corners are convexly rounded and formed smoothly and continuously from the side surfaces of the grooves. Further, the side surfaces of the four corners of the intersection of the groove are rounded with a radius of curvature larger than the width of the groove and are each formed into a convex spherical surface that is smoothly continuous from the side surface of the groove. The substrate.

【0010】またこの発明は、基板を多数個取りするセ
ラミック基板を分割して形成されたチップ部品の絶縁基
板において、分割後の絶縁基板の側面と表面が交差した
四方の角部が、丸みを帯びて上記側面および表面から滑
らかに連続した凸面状に各々形成されているチップ部品
の絶縁基板である。さらに、この分割後の絶縁基板の2
側面と表面が交差したコーナー部の四方の角部が、丸み
を帯びて上記側面および表面から滑らかに連続した凸面
の球面状に各々形成されているものである。
Further, according to the present invention, in the insulating substrate of a chip component formed by dividing a ceramic substrate from which a large number of substrates are formed, the four corners where the side and the surface of the divided insulating substrate intersect are rounded. It is an insulating substrate of a chip component which is formed in a convex shape which is continually smooth from the side surface and the surface. Further, 2 of the divided insulating substrate
The four corners of the corner portion where the side surface and the surface intersect each other are rounded and formed in a spherical shape of a convex surface that is smoothly continuous from the side surface and the surface.

【0011】さらに、上記分割後の絶縁基板は、上記側
面と表面が交差した四方の角部および、上記側面と裏面
が交差した四方の角部が、おのおの丸みを帯びて上記側
面および表面または裏面から滑らかに連続した凸面状に
各々形成されているものである。また、上記分割後の絶
縁基板は、上記2側面と表面が交差したコーナー部の四
方の角部および、上記2側面と裏面が交差したコーナー
部の角部が、おのおの丸みを帯びて上記側面および表面
または裏面から滑らかに連続した凸面の球面状に各々形
成されているチップ部品の絶縁基板である。
Further, in the divided insulating substrate, the four corners where the side surfaces and the front surface intersect and the four corners where the side surfaces and the back surface intersect each other are rounded, and the side surface and the front surface or the back surface are rounded. , And are each formed in a smoothly continuous convex shape. In addition, in the insulating substrate after the division, the four corners of the corner where the two side faces intersect the surface and the corners of the corner where the two side faces intersect the back face are rounded, respectively. It is an insulating substrate of a chip component, each of which is formed into a spherical surface having a convex surface smoothly continuous from the front surface or the back surface.

【0012】[0012]

【作用】この発明のセラミック基板は、表面の溝に沿っ
て分割した際、溝の交差部でも溝の側面に沿って正確に
分割でき、バリや欠けが生じないものである。
When the ceramic substrate of the present invention is divided along the groove on the surface, the substrate can be accurately divided along the side surface of the groove even at the intersection of the grooves, so that burrs and chipping do not occur.

【0013】さらに、この発明のチップ部品の絶縁基板
は、分割後の基板側面の角部が滑らかであり、コーナー
部の角も滑らかにすることができ、絶縁基板にクラック
等が生じにくくいものである。
Further, the insulating substrate of the chip component of the present invention has a smooth corner at the side surface of the substrate after division and a smooth corner at the corner, so that the insulating substrate is unlikely to crack or the like. is there.

【0014】[0014]

【実施例】以下この発明の実施例について図面に基づい
て説明する。図1〜図4はこの発明の第一実施例を示す
もので、この実施例のセラミック基板は、アルミナ等の
セラミックスにより形成され、表面には角部1a,2a
にRが付けられた横溝1及び縦溝2が一定のピッチで設
けられ、その交差部3では、図1に示すように、各溝
1,2の交差部3の側面の四方のコーナー部3aにもR
をつけられて凸状の曲面である球面状に形成されてい
る。そして、この溝1,2の深さは、例えば約250μ
m程度であり、上記コーナー部3aのRの曲率半径はこ
の溝1.2の幅より大きく形成されている。
Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a first embodiment of the present invention. A ceramic substrate of this embodiment is formed of ceramics such as alumina, and has corner portions 1a and 2a on its surface.
Are provided at a constant pitch in a horizontal groove 1 and a vertical groove 2 having a radius R. As shown in FIG. Also R
Is formed into a spherical surface which is a convex curved surface. The depth of the grooves 1 and 2 is about 250 μ, for example.
The radius of curvature R of the corner 3a is larger than the width of the groove 1.2.

【0015】このセラミック基板は、チップ部品の絶縁
基板を多数個取りするもので、後の工程で、溝1,2に
沿って分割して個々のチップ部品の絶縁基板4を得るも
のである。このチップ部品の絶縁基板4は、図3
(A),(B)に示すように、分割後の角部1a,2a
及びこの角部1a,2aが交差したコーナー部3aが、
表面及び側面から連続したR形状に形成され、特に、コ
ーナー部3aは、丸みを帯びて上記側面および表面から
滑らかに連続した凸面の球面状に各々形成されている。
This ceramic substrate is used to obtain a large number of insulating substrates for chip components. In a later step, the ceramic substrate is divided along the grooves 1 and 2 to obtain insulating substrates 4 for individual chip components. The insulating substrate 4 of this chip component is shown in FIG.
As shown in (A) and (B), the corners 1a and 2a after division
And a corner 3a where the corners 1a and 2a intersect,
It is formed in a continuous R shape from the surface and the side surface, and in particular, the corner portion 3a is formed into a rounded convex spherical surface that is smoothly continuous from the side surface and the surface.

【0016】この実施例のセラミック基板の製造方法
は、まず、いわゆるドクターブレード法により焼成前の
セラミックスのグリーンシートを作る。このグリーンシ
ートの製法は公知のもので、原料の粉体及び溶剤その他
を混合し、バインダーを加えてさらに混練し、所定のキ
ャリアテープ上にこれを一定の厚さで塗り、乾燥させて
グリーンシートを作る。
In the method of manufacturing a ceramic substrate according to this embodiment, first, a green sheet of ceramic before firing is formed by a so-called doctor blade method. The method for producing this green sheet is a known method. A powder, a solvent, and the like of the raw materials are mixed, a binder is added, and the mixture is further kneaded. The mixture is applied to a predetermined thickness on a predetermined carrier tape, dried, and dried. make.

【0017】次に、このグリーンシートに溝1,2を形
成する。この溝1,2の形成は、溝形成用の刃5,6
が、縦横に一定のピッチで設けられた金型7によりプレ
スして行う。この金型7の刃5,6は、図4に示すよう
に、その基部が上記各角部1a,2aを形成するための
凹面状のRを付けられて形成され、刃5,6の交差部の
側面は、上記コーナー部3aを形成するための凹面の球
面状のRをつけて加工されており、このRの曲率半径は
刃の厚さより大きく形成されている。これによって溝
1,2の交差部3が曲面形状で角のない形に形成され
る。ここで、この金型7は、深さが約250μm 程度
の極めて細い溝を形成するものであり、刃5,6の高さ
も250μm位に加工するため、縦横の刃を交差させて
取り付けることは出来ず、放電加工によって表面に刃
5,6を一体に残すように研削して金型7を作る。
Next, grooves 1 and 2 are formed in the green sheet. The formation of the grooves 1 and 2 is performed by using the blades 5 and 6 for forming the grooves.
However, pressing is performed by a mold 7 provided at a constant pitch in the vertical and horizontal directions. As shown in FIG. 4, the blades 5 and 6 of the mold 7 are formed such that the base portions thereof are provided with concave R for forming the above-mentioned corner portions 1a and 2a, and the blades 5 and 6 intersect each other. The side surface of the portion is machined with a concave spherical R for forming the corner 3a, and the radius of curvature of this R is formed larger than the thickness of the blade. As a result, the intersection 3 of the grooves 1 and 2 is formed in a curved shape with no corners. Here, this mold 7 forms an extremely thin groove having a depth of about 250 μm, and the height of the blades 5 and 6 is also processed to about 250 μm. The mold 7 is formed by grinding so that the blades 5 and 6 are left integrally on the surface by electric discharge machining.

【0018】そして、溝1,2が形成されたグリーンシ
ートは、所定の温度で焼成され、は5,6による溝1,
2が形成されたセラミックス基板となる。
The green sheet in which the grooves 1 and 2 are formed is fired at a predetermined temperature.
2 is a ceramic substrate on which is formed.

【0019】この実施例のセラミック基板によれば、セ
ラミックスの焼成前のグリーンシートに金型によって2
次元的に一度に縦横の溝1,2を形成して焼結している
ので、溝1,2の交差部に盛り上り部ができず、個々の
絶縁基板に分割する際に、正確に溝に沿って分割するこ
とができる。実験的には、分割後の絶縁基板にできるバ
リやヒビ割れが従来10%程度の頻度であったのが、こ
れにより0.5 〜0.05%以下に減少させることが
できた。また、これによって、チップ部品の製造工数の
削減、歩留の向上等を図ることができる。
According to the ceramic substrate of this embodiment, the green sheet before firing the ceramics is
Since the vertical and horizontal grooves 1 and 2 are formed one at a time and sintered, no swelling is formed at the intersection of the grooves 1 and 2, and when dividing into individual insulating substrates, the grooves are accurately formed. Can be divided along. Experimentally, the frequency of burrs and cracks formed on the divided insulating substrate has been about 10% in the past, but this has been reduced to 0.5 to 0.05% or less. In addition, it is possible to reduce the number of man-hours for manufacturing chip components, improve the yield, and the like.

【0020】次に、この発明の第二実施例について図5
を基にして説明する。ここで、前述の実施例と同一部分
については同一符号を付して説明を省略する。
Next, a second embodiment of the present invention will be described with reference to FIG.
The description will be made based on FIG. Here, the same portions as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

【0021】この実施例では、セラミック基板の両面に
分割用の溝を形成している。ここで、裏面側の溝15,
16の深さは、表面側の溝1,2より浅く、50μm程
度に形成されている。裏面側の溝15,16も上記と同
様に角部16a,17aがRを付けて形成され、その交
差部17のコーナー部17aも表面側と同様にRを付け
て形成されている。
In this embodiment, dividing grooves are formed on both sides of the ceramic substrate. Here, the grooves 15 on the back side,
The depth 16 is shallower than the grooves 1 and 2 on the front side, and is formed to about 50 μm. The grooves 15 and 16 on the rear surface side are also formed with rounded corners 16a and 17a in the same manner as described above, and the corners 17a of the intersections 17 are also formed with rounded corners similarly to the front surface side.

【0022】この実施例のセラミック基板の製造も前述
の実施例と同様であり、表面用の金型との刃の高さ変え
た裏面用の金型も用いて、表裏面同時にプレスしてグリ
ーンシートに溝を設ける。
The manufacture of the ceramic substrate of this embodiment is the same as that of the above-described embodiment, and the front and back surfaces are simultaneously pressed using a back surface mold having a different height from the front surface mold to form a green substrate. A groove is provided in the sheet.

【0023】この実施例によれば、表裏面に分割用の溝
が形成されているので、より分割しやすく、バリやヒビ
割れが生じにくい。
According to this embodiment, since the dividing grooves are formed on the front and back surfaces, the dividing is easier, and burrs and cracks are less likely to occur.

【0024】尚、この発明のセラミック基板の材料はア
ルミナ以外に、チタン酸バリウム等の誘電体、フェライ
ト等であっても良い。また、溝の深さや開き角は適宜設
定すれば良くその形状は問わない。さらに、溝のピッチ
は一定でなく、種々の大きさの絶縁基板に分割するもの
であっても良い。
The material of the ceramic substrate of the present invention may be a dielectric such as barium titanate, ferrite or the like, in addition to alumina. Further, the depth and the opening angle of the groove may be set as appropriate, and the shape thereof does not matter. Further, the pitch of the grooves is not constant, and may be divided into insulating substrates of various sizes.

【0025】[0025]

【発明の効果】この発明のセラミック基板は、多数個取
りの分割用の溝の側縁の角部や交差部の四方の角部にR
を付けたので、後に個々のチップ部品毎の絶縁基板に分
割する際にも、絶縁基板の周縁部にバリやヒビ割れがほ
とんど発生せず、端面の研磨工程を不要にし、高品質の
チップ部品を歩留良く製造することができる。
According to the ceramic substrate of the present invention, the corners at the side edges of the multi-cavity dividing groove and the four corners at the intersection are formed with R.
When the chip is divided into insulating substrates for each chip component later, almost no burrs or cracks occur on the peripheral edge of the insulating substrate, eliminating the need for a polishing process on the end face, and high quality chip components Can be manufactured with good yield.

【0026】また、この発明のチップ部品の絶縁基板
は、個々のチップ部品の絶縁基板に分割した状態でバリ
や欠けがなく、しかも、バリ等がないので分割後の寸法
精度が極めて高く、後の工程において自動機によりホー
ルドする際にもミスがなく、不良が発生しないものであ
る。
Further, the insulating substrate for chip components of the present invention has no burrs or chips when divided into insulating substrates for individual chip components, and has no burrs and the like, so that the dimensional accuracy after division is extremely high. There is no mistake when holding by an automatic machine in the above step, and no defect occurs.

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

【図1】この発明の第一実施例のセラミック基板の部分
拡大正面図である。
FIG. 1 is a partially enlarged front view of a ceramic substrate according to a first embodiment of the present invention.

【図2】この第一実施例のセラミック基板の正面図であ
る。
FIG. 2 is a front view of the ceramic substrate of the first embodiment.

【図3】図1のA−A断面図(A)とB−B断面(B)
である。
FIGS. 3A and 3B are cross-sectional views (A) and BB (B) of FIG. 1;
It is.

【図4】この第一実施例のセラミック基板の製造に用い
る金型の部分拡大斜視図である。
FIG. 4 is a partially enlarged perspective view of a mold used for manufacturing the ceramic substrate of the first embodiment.

【図5】この発明の第二実施例のセラミック基板の縦断
面図である。
FIG. 5 is a longitudinal sectional view of a ceramic substrate according to a second embodiment of the present invention.

【図6】従来のセラミック基板の部分拡大正面図であ
る。
FIG. 6 is a partially enlarged front view of a conventional ceramic substrate.

【図7】従来の技術のチップ部品の絶縁基板である。FIG. 7 is an insulating substrate of a conventional chip component.

【符号の説明】[Explanation of symbols]

1,2,15,16 溝 1a,2a,3a 角部 3,17 交差部 4 絶縁基板 1,2,15,16 groove 1a, 2a, 3a corner 3,17 intersection 4 insulating substrate

─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成8年11月6日[Submission date] November 6, 1996

【手続補正1】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】全文[Correction target item name] Full text

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【書類名】 明細書[Document Name] Statement

【発明の名称】 チップ部品の絶縁基板Insulating substrate for chip component

【特許請求の範囲】[Claims]

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、いわゆるチップ状の
電子部品の絶縁基板を形成するセラミック基板とそのセ
ラミック基板を用いたチップ部品の絶縁基板に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic substrate for forming a so-called chip-shaped electronic component insulating substrate and a chip component insulating substrate using the ceramic substrate.

【0002】[0002]

【従来の技術】従来、例えばチップ抵抗器の絶縁基板を
セラミックスで形成する場合、特開昭58−30118
号公報に開示されているように、セラミックスの焼成前
のグリーンシートに所定の刃よって縦横に細い溝を形成
し、焼成後この溝に沿って分割して個々のチップ抵抗器
の絶縁基板を得ていた。
2. Description of the Related Art Conventionally, for example, when an insulating substrate of a chip resistor is formed of ceramics, Japanese Patent Laid-Open No. 58-30118 discloses
As disclosed in Japanese Unexamined Patent Publication, a narrow groove is formed vertically and horizontally by a predetermined blade on a green sheet before firing of ceramics, and after firing, the substrate is divided along the groove to obtain an insulating substrate of each chip resistor. I was

【0003】この溝は、柔らかいグリーンシートに金型
の刃を押し付けて形成されているものであり、縦方向と
横方向の溝は、別々に専用の金型で順次設けていた。こ
れは、分割用の溝がきわめて細く浅いものであるため、
縦横の刃を交差させた状態で金型に取り付けることがで
きなかったためである。
The grooves are formed by pressing a blade of a mold against a soft green sheet, and the grooves in the vertical and horizontal directions are separately provided in order by a dedicated mold. This is because the dividing grooves are very thin and shallow,
This is because it could not be attached to the mold with the vertical and horizontal blades intersecting.

【0004】また、実開昭62−204366号公報に
開示されているように、チップ部品の絶縁基板を分割し
て形成するセラミック基板の、各チップ部品のコーナー
部に、正方形の貫通孔を形成したものも提案されてい
る。そして、各チップ部品毎に絶縁基板に分割する溝
を、V字状またはU字状に形成しているものである。
Further, as disclosed in Japanese Utility Model Laid-Open Publication No. Sho 62-204366, a square through hole is formed in a corner portion of each chip component of a ceramic substrate formed by dividing an insulating substrate of the chip component. Some have been proposed. Further, a groove to be divided into an insulating substrate for each chip component is formed in a V-shape or a U-shape.

【0005】[0005]

【発明が解決しようとする課題】上記従来の技術の前者
場合、柔らかいグリーンシート10に縦方向と横方向に
別々に刃を押しつけて溝を形成するため、図6に示すよ
うに、先に形成した溝11に後から形成した溝12によ
る盛り上り部13ができてしまうという問題があった。
従って、グリーンシート10を焼成してセラミック基板
を得た後、溝11、12に沿ってこれを分割すると、盛
り上り部13の部分は肉厚が厚いので、きれいに割れ
ず、図7に示すように分割後のチップ部品の絶縁基板1
4の角の部分で盛り上り部13がバリとして残ってしま
うという欠点が生じていた。
In the former case of the above prior art, grooves are formed by pressing blades separately on the soft green sheet 10 in the vertical and horizontal directions, so that the grooves are formed first as shown in FIG. There is a problem that the raised portion 13 is formed by the groove 12 formed later in the formed groove 11.
Accordingly, when the green sheet 10 is fired to obtain a ceramic substrate and then divided along the grooves 11 and 12, when the bulging portion 13 is thick, the portion is not cracked cleanly as shown in FIG. Insulating substrate 1 for chip components after splitting
At the corner of No. 4, the raised portion 13 remains as a burr.

【0006】さらに、縦横の溝11、12の交差部は単
に溝11、12が直交しているだけなので、分割後のチ
ップ部品の絶縁基板の角部は直角状態のままバリによる
突起または欠けた部分が表れ、角部分の表面が粗く、し
かも分割の際に角の部分にヒビ等が入りやすく、チップ
部品製造の歩留低下の原因にもなっていた。
Further, the intersection of the vertical and horizontal grooves 11 and 12 is simply that the grooves 11 and 12 are orthogonal to each other. Therefore, the corners of the insulated substrate of the chip component after division have been projected or chipped by burrs in a right angle state. The portion appears, the surface of the corner portion is rough, and cracks and the like are apt to be formed in the corner portion at the time of division, which causes a reduction in the yield of chip component manufacturing.

【0007】また上記従来の技術の後者の場合、セラミ
ック基板を分割する溝が交差した部分に貫通孔が形成さ
れているが、その分割部分の角部が滑らかなものではな
く、側縁の角部及びコーナー部には、角があり、分割時
にバリや欠けが生じやすく、クラック等も発生しやすい
ものであった。
In the latter case of the above-mentioned prior art, a through hole is formed at a portion where the groove for dividing the ceramic substrate intersects. However, the corner of the divided portion is not smooth, and the corner of the side edge is not formed. The portions and corners had corners, and burrs and chips were apt to occur during division, and cracks and the like were also likely to occur.

【0008】この発明は上記従来の技術に鑑み成された
もので、表面性状が良好で、バリや欠けがなく高品質な
ものを歩留良く製造することができるセラミック基板
と、これを分割して形成したチップ部品の絶縁基板を提
供することを目的とする。
The present invention has been made in view of the above-mentioned prior art, and has a ceramic substrate capable of producing a high-quality substrate with good surface properties and without burrs or chips at a high yield. An object of the present invention is to provide an insulating substrate of a chip component formed by the above method.

【0009】[0009]

【課題を解決するための手段】この発明は、チップ抵抗
器やチップコンデンサ等のチップ部品の絶縁基板を多数
個取りするセラミック基板において、縦横に各々複数本
の溝が形成され、溝の側縁の角部が凸面状に丸みを帯び
て上記溝の側面から滑らかに連続して形成されているセ
ラミック基板である。また、この溝の交差部の四方の角
部の側面が、上記溝の幅より大きい曲率半径を有する丸
みを帯びて上記溝の側面から滑らかに連続した凸面の曲
面状に各々形成されているセラミック基板である。
SUMMARY OF THE INVENTION The present invention relates to a ceramic substrate for forming a large number of insulating substrates for chip components such as chip resistors and chip capacitors. Is a ceramic substrate whose corners are convexly rounded and formed smoothly and continuously from the side surfaces of the grooves. Further, the side surfaces of the four corners of the intersection of the groove are rounded with a radius of curvature larger than the width of the groove and are each formed in a convex curved surface shape that is smoothly continuous from the side surface of the groove. The substrate.

【0010】またこの発明は、基板を多数個取りするセ
ラミック基板を分割して形成されたチップ部品の絶縁基
板において、分割後の絶縁基板の側面と表面が交差した
四方の角部が、丸みを帯びて上記側面および表面から滑
らかに連続した凸面状に各々形成されているチップ部品
の絶縁基板である。さらに、この分割後の絶縁基板の2
側面と表面が交差したコーナー部の四方の角部が、丸み
を帯びて上記側面および表面から滑らかに連続した凸面
の曲面状に各々形成されているものである。
Further, according to the present invention, in the insulating substrate of a chip component formed by dividing a ceramic substrate from which a large number of substrates are formed, the four corners where the side and the surface of the divided insulating substrate intersect are rounded. It is an insulating substrate of a chip component which is formed in a convex shape which is continually smooth from the side surface and the surface. Further, 2 of the divided insulating substrate
The four corners of the corner where the side surface and the surface intersect are each formed in a rounded convex curved surface that is rounded and smoothly continues from the side surface and the surface.

【0011】さらに、上記分割後の絶縁基板は、上記側
面と表面が交差した四方の角部および、上記側面と裏面
が交差した四方の角部が、おのおの丸みを帯びて上記側
面および表面または裏面から滑らかに連続した凸面状に
各々形成されているものである。また、上記分割後の絶
縁基板は、上記2側面と表面が交差したコーナー部の四
方の角部および、上記2側面と裏面が交差したコーナー
部の角部が、おのおの丸みを帯びて上記側面および表面
または裏面から滑らかに連続した凸面の曲面状に各々形
成されているチップ部品の絶縁基板である。
Further, in the divided insulating substrate, the four corners where the side surfaces and the front surface intersect and the four corners where the side surfaces and the back surface intersect each other are rounded, and the side surface and the front surface or the back surface are rounded. , And are each formed in a smoothly continuous convex shape. Further, the divided insulating substrate has four corners where the two side surfaces and the front surface intersect each other, and corner portions where the two side surfaces and the back surface intersect each other. It is an insulating substrate of a chip component formed in a convex curved surface shape that is smoothly continuous from the front surface or the back surface.

【0012】[0012]

【作用】この発明のセラミック基板は、表面の溝に沿っ
て分割した際、溝の交差部でも溝の側面に沿って正確に
分割でき、バリや欠けが生じないものである。
When the ceramic substrate of the present invention is divided along the groove on the surface, the substrate can be accurately divided along the side surface of the groove even at the intersection of the grooves, so that burrs and chipping do not occur.

【0013】さらに、この発明のチップ部品の絶縁基板
は、分割後の基板側面の角部が滑らかであり、コーナー
部の角も滑らかにすることができ、絶縁基板にクラック
等が生じにくくいものである。
Further, the insulating substrate of the chip component of the present invention has a smooth corner at the side surface of the substrate after division and a smooth corner at the corner, so that the insulating substrate is unlikely to crack or the like. is there.

【0014】[0014]

【実施例】以下この発明の実施例について図面に基づい
て説明する。図1〜図4はこの発明の第一実施例を示す
もので、この実施例のセラミック基板は、アルミナ等の
セラミックスにより形成され、表面には角部1a,2a
にRが付けられた横溝1及び縦溝2が一定のピッチで設
けられ、その交差部3では、図1に示すように、各溝
1,2の交差部3の側面の四方のコーナー部3aにもR
をつけられて凸状の曲面に形成されている。そして、こ
の溝1,2の深さは、例えば約250μm程度であり、
上記コーナー部3aのRの曲率半径はこの溝1.2の幅
より大きく形成されている。
Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a first embodiment of the present invention. A ceramic substrate of this embodiment is formed of ceramics such as alumina, and has corner portions 1a and 2a on its surface.
Are provided at a constant pitch in a horizontal groove 1 and a vertical groove 2 having a radius R. As shown in FIG. Also R
Is formed on the convex curved surface. The depth of the grooves 1 and 2 is, for example, about 250 μm.
The radius of curvature of the corner portion 3a is formed larger than the width of the groove 1.2.

【0015】このセラミック基板は、チップ部品の絶縁
基板を多数個取りするもので、後の工程で、溝1,2に
沿って分割して個々のチップ部品の絶縁基板4を得るも
のである。このチップ部品の絶縁基板4は、図3
(A),(B)に示すように、分割後の角部1a,2a
及びこの角部1a,2aが交差したコーナー部3aが、
表面及び側面から連続したR形状に形成され、特に、コ
ーナー部3aは、丸みを帯びて上記側面および表面から
滑らかに連続した凸面の曲面状に各々形成されている。
This ceramic substrate is used to obtain a large number of insulating substrates for chip components. In a later step, the ceramic substrate is divided along the grooves 1 and 2 to obtain insulating substrates 4 for individual chip components. The insulating substrate 4 of this chip component is shown in FIG.
As shown in (A) and (B), the corners 1a and 2a after division
And a corner 3a where the corners 1a and 2a intersect,
The corner portion 3a is formed in a rounded shape that is continuous from the surface and the side surface. In particular, the corner portion 3a is formed in a curved shape of a convex surface that is rounded and smoothly continues from the side surface and the surface.

【0016】この実施例のセラミック基板の製造方法
は、まず、いわゆるドクターブレード法により焼成前の
セラミックスのグリーンシートを作る。このグリーンシ
ートの製法は公知のもので、原料の粉体及び溶剤その他
を混合し、バインダーを加えてさらに混練し、所定のキ
ャリアテープ上にこれを一定の厚さで塗り、乾燥させて
グリーンシートを作る。
In the method of manufacturing a ceramic substrate according to this embodiment, first, a green sheet of ceramic before firing is formed by a so-called doctor blade method. The method for producing this green sheet is a known method. A powder, a solvent, and the like of the raw materials are mixed, a binder is added, and the mixture is further kneaded. The mixture is applied to a predetermined thickness on a predetermined carrier tape, dried, and dried. make.

【0017】次に、このグリーンシートに溝1,2を形
成する。この溝1,2の形成は、溝形成用の刃5,6
が、縦横に一定のピッチで設けられた金型7によりプレ
スして行う。この金型7の刃5,6は、図4に示すよう
に、その基部が上記各角部1a,2aを形成するための
凹面状のRを付けられて形成され、刃5,6の交差部の
側面は、上記コーナー部3aを形成するための凹面の曲
面状のRをつけて加工されており、このRの曲率半径は
刃の厚さより大きく形成されている。これによって溝
1,2の交差部3が曲面形状で角のない形に形成され
る。ここで、この金型7は、深さが約250μm 程度
の極めて細い溝を形成するものであり、刃5,6の高さ
も250μm位に加工するため、縦横の刃を交差させて
取り付けることは出来ず、放電加工によって表面に刃
5,6を一体に残すように研削して金型7を作る。
Next, grooves 1 and 2 are formed in the green sheet. The formation of the grooves 1 and 2 is performed by using the blades 5 and 6 for forming the grooves.
However, pressing is performed by a mold 7 provided at a constant pitch in the vertical and horizontal directions. As shown in FIG. 4, the blades 5 and 6 of the mold 7 are formed such that their bases are provided with a concave R for forming the corners 1a and 2a. The side surface of the portion is machined with a concave curved surface R for forming the corner portion 3a, and the radius of curvature of this R is larger than the thickness of the blade. As a result, the intersection 3 of the grooves 1 and 2 is formed in a curved shape with no corners. Here, this mold 7 forms an extremely thin groove having a depth of about 250 μm, and the height of the blades 5 and 6 is also processed to about 250 μm. The mold 7 is formed by grinding so that the blades 5 and 6 are left integrally on the surface by electric discharge machining.

【0018】そして、溝1,2が形成されたグリーンシ
ートは、所定の温度で焼成され、は5,6による溝1,
2が形成されたセラミックス基板となる。
The green sheet in which the grooves 1 and 2 are formed is fired at a predetermined temperature.
2 is a ceramic substrate on which is formed.

【0019】この実施例のセラミック基板によれば、セ
ラミックスの焼成前のグリーンシートに金型によって2
次元的に一度に縦横の溝1,2を形成して焼結している
ので、溝1,2の交差部に盛り上り部ができず、個々の
絶縁基板に分割する際に、正確に溝に沿って分割するこ
とができる。実験的には、分割後の絶縁基板にできるバ
リやヒビ割れが従来10%程度の頻度であったのが、こ
れにより0.5 〜0.05%以下に減少させることが
できた。また、これによって、チップ部品の製造工数の
削減、歩留の向上等を図ることができる。
According to the ceramic substrate of this embodiment, the green sheet before firing the ceramics is
Since the vertical and horizontal grooves 1 and 2 are formed one at a time and sintered, no swelling is formed at the intersection of the grooves 1 and 2, and when dividing into individual insulating substrates, the grooves are accurately formed. Can be divided along. Experimentally, the frequency of burrs and cracks formed on the divided insulating substrate has been about 10% in the past, but this has been reduced to 0.5 to 0.05% or less. In addition, it is possible to reduce the number of man-hours for manufacturing chip components, improve the yield, and the like.

【0020】次に、この発明の第二実施例について図5
を基にして説明する。ここで、前述の実施例と同一部分
については同一符号を付して説明を省略する。
Next, a second embodiment of the present invention will be described with reference to FIG.
The description will be made based on FIG. Here, the same portions as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

【0021】この実施例では、セラミック基板の両面に
分割用の溝を形成している。ここで、裏面側の溝15,
16の深さは、表面側の溝1,2より浅く、50μm程
度に形成されている。裏面側の溝15,16も上記と同
様に角部16a,17aがRを付けて形成され、その交
差部17のコーナー部17aも表面側と同様にRを付け
て形成されている。
In this embodiment, dividing grooves are formed on both sides of the ceramic substrate. Here, the grooves 15 on the back side,
The depth 16 is shallower than the grooves 1 and 2 on the front side, and is formed to about 50 μm. The grooves 15 and 16 on the rear surface side are also formed with rounded corners 16a and 17a in the same manner as described above, and the corners 17a of the intersections 17 are also formed with rounded corners similarly to the front surface side.

【0022】この実施例のセラミック基板の製造も前述
の実施例と同様であり、表面用の金型との刃の高さ変え
た裏面用の金型も用いて、表裏面同時にプレスしてグリ
ーンシートに溝を設ける。
The manufacture of the ceramic substrate of this embodiment is the same as that of the above-described embodiment, and the front and back surfaces are simultaneously pressed using a back surface mold having a different height from the front surface mold to form a green substrate. A groove is provided in the sheet.

【0023】この実施例によれば、表裏面に分割用の溝
が形成されているので、より分割しやすく、バリやヒビ
割れが生じにくい。
According to this embodiment, since the dividing grooves are formed on the front and back surfaces, the dividing is easier, and burrs and cracks are less likely to occur.

【0024】尚、この発明のセラミック基板の材料はア
ルミナ以外に、チタン酸バリウム等の誘電体、フェライ
ト等であっても良い。また、溝の深さや開き角は適宜設
定すれば良くその形状は問わない。さらに、溝のピッチ
は一定でなく、種々の大きさの絶縁基板に分割するもの
であっても良い。
The material of the ceramic substrate of the present invention may be a dielectric such as barium titanate, ferrite or the like, in addition to alumina. Further, the depth and the opening angle of the groove may be set as appropriate, and the shape thereof does not matter. Further, the pitch of the grooves is not constant, and may be divided into insulating substrates of various sizes.

【0025】[0025]

【発明の効果】この発明のセラミック基板は、多数個取
りの分割用の溝の側縁の角部や交差部の四方の角部にR
を付けたので、後に個々のチップ部品毎の絶縁基板に分
割する際にも、絶縁基板の周縁部にバリやヒビ割れがほ
とんど発生せず、端面の研磨工程を不要にし、高品質の
チップ部品を歩留良く製造することができる。
According to the ceramic substrate of the present invention, the corners at the side edges of the multi-cavity dividing groove and the four corners at the intersection are formed with R.
When the chip is divided into insulating substrates for each chip component later, almost no burrs or cracks occur on the peripheral edge of the insulating substrate, eliminating the need for a polishing process on the end face, and high quality chip components Can be manufactured with good yield.

【0026】また、この発明のチップ部品の絶縁基板
は、個々のチップ部品の絶縁基板に分割した状態でバリ
や欠けがなく、しかも、バリ等がないので分割後の寸法
精度が極めて高く、後の工程において自動機によりホー
ルドする際にもミスがなく、不良が発生しないものであ
る。
Further, the insulating substrate for chip components of the present invention has no burrs or chips when divided into insulating substrates for individual chip components, and has no burrs and the like, so that the dimensional accuracy after division is extremely high. There is no mistake when holding by an automatic machine in the above step, and no defect occurs.

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

【図1】この発明の第一実施例のセラミック基板の部分
拡大正面図である。
FIG. 1 is a partially enlarged front view of a ceramic substrate according to a first embodiment of the present invention.

【図2】この第一実施例のセラミック基板の正面図であ
る。
FIG. 2 is a front view of the ceramic substrate of the first embodiment.

【図3】図1のA−A断面図(A)とB−B断面(B)
である。
FIGS. 3A and 3B are cross-sectional views (A) and BB (B) of FIG. 1;
It is.

【図4】この第一実施例のセラミック基板の製造に用い
る金型の部分拡大斜視図である。
FIG. 4 is a partially enlarged perspective view of a mold used for manufacturing the ceramic substrate of the first embodiment.

【図5】この発明の第二実施例のセラミック基板の縦断
面図である。
FIG. 5 is a longitudinal sectional view of a ceramic substrate according to a second embodiment of the present invention.

【図6】従来のセラミック基板の部分拡大正面図であ
る。
FIG. 6 is a partially enlarged front view of a conventional ceramic substrate.

【図7】従来の技術のチップ部品の絶縁基板である。FIG. 7 is an insulating substrate of a conventional chip component.

【符号の説明】 1,2,15,16 溝 1a,2a,3a 角部 3,17 交差部 4 絶縁基板[Explanation of reference numerals] 1,2,15,16 Grooves 1a, 2a, 3a Corner parts 3,17 Crossing parts 4 Insulating substrate

───────────────────────────────────────────────────── フロントページの続き (72)発明者 山下 卓巳 富山県上新川郡大沢野町下大久保3158番地 北陸電気工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takumi Yamashita 3158 Shimookubo, Osawano-cho, Kamishinagawa-gun, Toyama Prefecture Hokuriku Electric Industry Co., Ltd.

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 チップ部品の絶縁基板を多数個取りする
セラミック基板において、縦横に各々複数本の溝が形成
され、溝の側縁角部が凸面状に丸みを帯びて上記溝の側
面から滑らかに連続して形成されていることを特徴とす
るセラミック基板。
1. A ceramic substrate for obtaining a large number of insulating substrates for chip parts, wherein a plurality of grooves are formed in each of the vertical and horizontal directions, and the side edge corners of the grooves are rounded in a convex shape and smooth from the side surfaces of the grooves. A ceramic substrate characterized by being formed continuously.
【請求項2】 チップ部品の絶縁基板を多数個取りする
セラミック基板において、縦横に各々複数本の溝が形成
され、溝の交差部の四方の角部の側面が、上記溝の幅よ
り大きい曲率半径を有する丸みを帯びて上記溝の側面か
ら滑らかに連続した凸面の球面状に各々形成されている
ことを特徴とするセラミック基板。
2. A ceramic substrate having a plurality of insulating substrates for chip parts, wherein a plurality of grooves are formed in each of the vertical and horizontal directions, and the side surfaces of the four corners of the intersection of the grooves have a curvature larger than the width of the groove. A ceramic substrate, each of which is rounded with a radius and is formed into a convex spherical surface that is smoothly continuous from the side surface of the groove.
【請求項3】 基板を多数個取りするセラミック基板を
分割して形成されたチップ部品の絶縁基板において、分
割後の絶縁基板の側面と表面が交差した四方の角部が、
丸みを帯びて上記側面および表面から滑らかに連続した
凸面状に各々形成されていることを特徴とするチップ部
品の絶縁基板。
3. In an insulating substrate of a chip component formed by dividing a ceramic substrate from which a large number of substrates are taken, four corners where the side surface and the surface of the insulating substrate after division intersect
An insulating substrate for a chip component, which is rounded and formed in a convex shape that is smooth and continuous from the side surface and the surface.
【請求項4】 基板を多数個取りするセラミック基板を
分割して形成されたチップ部品の絶縁基板において、分
割後の絶縁基板の2側面と表面が交差したコーナー部の
四方の角部が、丸みを帯びて上記側面および表面から滑
らかに連続した凸面の球面状に各々形成されていること
を特徴とするチップ部品の絶縁基板。
4. In an insulating substrate of a chip component formed by dividing a ceramic substrate from which a large number of substrates are taken, the four corners of the corner where the two side faces and the surface of the divided insulating substrate intersect are rounded. An insulating substrate for a chip component, each of which is formed into a spherical surface having a convex surface that is smoothly continuous from the side surface and the surface.
【請求項5】 上記分割後の絶縁基板は、上記側面と表
面が交差した四方の角部および、上記側面と裏面が交差
した四方の角部が、おのおの丸みを帯びて上記側面およ
び表面または裏面から滑らかに連続した凸面状に各々形
成されていることを特徴とする請求項3記載のチップ部
品の絶縁基板。
5. The insulating substrate after the division is such that the four corners where the side surfaces and the front surface intersect and the four corners where the side surface and the back surface intersect each other are rounded to the side surface and the front surface or the back surface. 4. The insulating substrate for a chip part according to claim 3, wherein each of the insulating substrates is formed in a smoothly continuous convex shape.
【請求項6】 上記分割後の絶縁基板は、上記2側面と
表面が交差したコーナー部の四方の角部および、上記2
側面と裏面が交差したコーナー部の角部が、おのおの丸
みを帯びて上記側面および表面または裏面から滑らかに
連続した凸面の球面状に各々形成されていることを特徴
とする請求項4記載のチップ部品の絶縁基板。
6. The insulating substrate after the division has four corners of the corner where the two side surfaces intersect with the surface and the two sides.
5. The chip according to claim 4, wherein the corners of the corners where the side surface and the back surface intersect are each rounded and formed into a convex spherical surface that is smoothly continuous from the side surface and the front surface or the back surface. Insulation board for parts.
JP8286180A 1996-10-07 1996-10-07 Method and apparatus for manufacturing chip-shaped insulating substrate Expired - Fee Related JP2707440B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8286180A JP2707440B2 (en) 1996-10-07 1996-10-07 Method and apparatus for manufacturing chip-shaped insulating substrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8286180A JP2707440B2 (en) 1996-10-07 1996-10-07 Method and apparatus for manufacturing chip-shaped insulating substrate

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP6098245A Division JP2612843B2 (en) 1994-04-11 1994-04-11 Ceramic substrate and insulating substrate for chip components

Publications (2)

Publication Number Publication Date
JPH09107158A true JPH09107158A (en) 1997-04-22
JP2707440B2 JP2707440B2 (en) 1998-01-28

Family

ID=17700989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8286180A Expired - Fee Related JP2707440B2 (en) 1996-10-07 1996-10-07 Method and apparatus for manufacturing chip-shaped insulating substrate

Country Status (1)

Country Link
JP (1) JP2707440B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013131717A (en) * 2011-12-22 2013-07-04 Tdk Corp Manufacturing method of chip electronic component and ceramic substrate
CN113455118A (en) * 2019-01-17 2021-09-28 捷普有限公司 Apparatus, system and method for providing radial slice identification for pick and place

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06318768A (en) * 1994-04-11 1994-11-15 Hokuriku Electric Ind Co Ltd Insulating substrate for ceramic substrate and chip part

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06318768A (en) * 1994-04-11 1994-11-15 Hokuriku Electric Ind Co Ltd Insulating substrate for ceramic substrate and chip part

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013131717A (en) * 2011-12-22 2013-07-04 Tdk Corp Manufacturing method of chip electronic component and ceramic substrate
CN113455118A (en) * 2019-01-17 2021-09-28 捷普有限公司 Apparatus, system and method for providing radial slice identification for pick and place

Also Published As

Publication number Publication date
JP2707440B2 (en) 1998-01-28

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