JPH01135636A - Copper-lining laminated sheet - Google Patents
Copper-lining laminated sheetInfo
- Publication number
- JPH01135636A JPH01135636A JP29332087A JP29332087A JPH01135636A JP H01135636 A JPH01135636 A JP H01135636A JP 29332087 A JP29332087 A JP 29332087A JP 29332087 A JP29332087 A JP 29332087A JP H01135636 A JPH01135636 A JP H01135636A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- drill
- reduced
- glass cloth
- strength
- 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims abstract description 21
- 239000004744 fabric Substances 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011889 copper foil Substances 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Glass Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は銅張積層板に係り、特に小径スルホールを有す
る印刷配線板に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a copper-clad laminate, and particularly to a printed wiring board having small diameter through holes.
従来、印刷配線板用の銅張積層板では、ガラスの７μ乃
至９μのモノフィラメントを２００本乃至４００本より
合せて、ストランドを作シ、これで第４図に示す様にた
て糸７（５０本／インチ）とよこ糸８（４５本／インチ
）とを織ることにより、０．１ ｍｍ乃至０．２ ｍｍ
厚のガラスクロスを作り、そのままの状態で樹脂を塗布
し、外層に１８μの銅箔４を両生面にセットして、第５
図の銅張積層板を形成する。Conventionally, in copper-clad laminates for printed wiring boards, 200 to 400 glass monofilaments of 7 μm to 9 μm are twisted together to form a strand, and the warp threads 7 (50/ 0.1 mm to 0.2 mm by weaving 8 wefts (45 threads/inch)
Make a thick glass cloth, apply resin as it is, set 18μ copper foil 4 on the outer layer on both sides, and
Form the copper-clad laminate shown in the figure.
前述した従来の銅張積層板は、基材にストランドの交差
している部分と交差していない部分とで、第４図に示す
様なギャップａが発生するが、ストランド強度が強すぎ
るため、特に小径のドリルの様に剛性の低いドリルで加
工を行りた場合に、ストランドの強度にドリルが負けて
、交差している部分から交差していない部分にこのドリ
ルのすべりが発生し、加工の穴位置精度が悪くなるとい
う欠点がある（第１表参照）。In the conventional copper-clad laminate described above, a gap a as shown in Fig. 4 occurs between the parts where the strands intersect and the parts where they do not intersect with the base material, but because the strand strength is too strong, Especially when processing with a drill with low rigidity such as a small-diameter drill, the drill loses the strength of the strands and slips from the intersecting part to the non-intersecting part, resulting in machining. The disadvantage is that the hole position accuracy deteriorates (see Table 1).
本発明の目的は、前記欠点が解決され、たとえ小径のド
リルを使用して穴あけをしても、ドリルのすベシが生じ
ないようにしだ鋼張積層板を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a steel-clad laminate which solves the above-mentioned drawbacks and which prevents the drilling from occurring even when a hole is drilled using a small-diameter drill.
本発明の構成は、多数のガラスのモノフィラメントを所
定のストランド強度で撚り合せた糸を縦糸と横糸となし
たガラスクロスをベースとし、樹脂でかため、銅箔を重
ね合せた銅張積層板において、前記糸のストランド強度
は、穴あけ加工するドリルの歯が横すべりしない程度に
、小さくなっていることを特徴とする。The structure of the present invention is based on a glass cloth made of warp and weft yarns made by twisting a large number of glass monofilaments at a predetermined strand strength, hardened with resin, and made of a copper-clad laminate made of overlapping copper foil. , the strand strength of the thread is so small as to prevent the teeth of a drill for drilling the hole from slipping sideways.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の第１の実施例の銅張積層板のガラスク
ロスの断面図である。同図において、本実施例では、第
４図の状態のガラスクロスを化学的処理するか、または
初めからストランド強度の小なる糸を用いることにより
、従来たて糸７が５５ ｋ ｇ／２５ｄ、よこ糸８が４
０ ｋ ｇ／−程度であるストランド強度を、たて糸１
を３０ ｋ ｇ／２５−１よこ糸２を２５ ｋ ｇ／２
５−までおとしたものを使用する。第２図は第１図の銅
張積層板の断面図である。FIG. 1 is a sectional view of the glass cloth of the copper-clad laminate according to the first embodiment of the present invention. In the same figure, in this embodiment, the warp yarn 7 is 55 kg/25 d, and the weft yarn 8 is 55 kg/25 d by chemically treating the glass cloth in the state shown in FIG. is 4
The strand strength is about 0 kg/-, and the warp 1
30 kg/25-1 Weft 2 25 kg/2
Use one lowered to 5-. FIG. 2 is a sectional view of the copper-clad laminate shown in FIG. 1.
同図において、第１図に示した平滑度を上げたガラスク
ロス３を３枚重ねて樹脂を塗布し、外層の両生面に１８
μの銅箔４を２枚重ね合せて積層を行い、銅張積層板を
完成する。ここで、本実施例による１、６箇厚の銅張積
層板と、従来例による１、６龍厚の銅張積層板とを、そ
れぞれ２枚重ねでφ０，４のドリル６で穴あけしたとき
の穴位置精度（所定位置からのズレ寸法〕を第１表に示
す。同表から明白なように、本実施例では、穴位置精度
の値が従来の略第１表半分となっている。In the same figure, three sheets of glass cloth 3 with increased smoothness as shown in FIG.
Two pieces of μ copper foil 4 are laminated and laminated to complete a copper-clad laminate. Here, when the copper-clad laminates of 1 and 6 thicknesses according to this embodiment and the copper-clad laminates of 1 and 6 thicknesses according to the conventional example are stacked in pairs and holes are drilled with a drill 6 of φ0.4. The hole position accuracy (deviation size from a predetermined position) is shown in Table 1. As is clear from the table, in this example, the hole position accuracy value is approximately half of the conventional value in Table 1.
第 １ 表
第３図は本発明の第２の実施例の銅張積層板の断面図で
ある。同図において、本実施例では、ストランド強度を
おとしたガラスクロス３を１枚と、従来のガラスクロス
５を２枚用意し、樹脂を塗布し、ストランド強度をおと
したがガラスクロス３を穴あけ側にセットして、外層に
１８μの銅箔４を２枚重ね合せて積層を行い、同図に示
す銅張積層板を完成する。この場合、穴あけ側の鋼箔４
の下のガラスクロスのみストランド強度をおとしたガラ
スクロス３を使用することにより、穴あけ側へのドリル
のくいつきをよくシ、第１表のように穴位置精度を上げ
ることができる。Table 1 and FIG. 3 are cross-sectional views of a copper-clad laminate according to a second embodiment of the present invention. In the figure, in this example, one glass cloth 3 with a reduced strand strength and two conventional glass cloths 5 are prepared, and a resin is applied to the glass cloth 3 with a reduced strand strength. It is set on the perforation side, and two sheets of 18 μm copper foil 4 are superimposed on the outer layer to complete the copper-clad laminate shown in the figure. In this case, the steel foil 4 on the drilling side
By using the glass cloth 3 with a lower strand strength only for the glass cloth below, the drill will not stick to the drilling side and the hole position accuracy can be improved as shown in Table 1.
以上説明したように、本発明は、ガラスクロスのストラ
ンド強度をおとしたものを使用することにより、特に小
径等の剛性の低いドリルの加工にシいて横すべりせず、
穴位置精度が向上できる効果がある。As explained above, the present invention uses glass cloth with reduced strand strength to prevent side slipping, especially when machining small-diameter drills with low rigidity.
This has the effect of improving hole position accuracy.
第１図は本発明の第１の実施例の銅張積層板に使用する
ガラスクロスの断面図、第２図は本発明の涛１の実施例
の銅張積層板の断面図、第３図は本発明の第２の実施例
の鋼張積層板の断面図、第４図は従来のガラスクロスの
断面図、第５図は従来の銅張積層板の断面図である。
１・・・・・・ストランド強度をおとしたたて糸、２・
・・・・・ストランド強度をおとしたよこ糸、３・・・
・・・ストランド強度をおとしたガラスクロス、４・・
・・・・銅箔、５・・・・・・従来のガラスクロス、６
・・・・・・小径ドリル、７・・・・・・ストランド（
たて糸）、８・・・・・・ストランド（よこ糸）。
代理人 弁理士 内 原 晋
珀５図Fig. 1 is a cross-sectional view of the glass cloth used in the copper-clad laminate according to the first embodiment of the present invention, Fig. 2 is a cross-sectional view of the copper-clad laminate according to the first embodiment of the present invention, and Fig. 3 4 is a sectional view of a conventional glass cloth, and FIG. 5 is a sectional view of a conventional copper clad laminate. 1...Warp yarn with reduced strand strength, 2.
...Weft yarn with reduced strand strength, 3...
...Glass cloth with reduced strand strength, 4...
...Copper foil, 5...Conventional glass cloth, 6
...Small diameter drill, 7...Strand (
Warp), 8... Strand (weft). Agent Patent Attorney Shinsaku Uchihara 5
Claims (1)
強度で撚り合せた糸を、縦糸と横糸となしたガラスクロ
スをベースとし樹脂でかため、銅箔を重ね合せた銅張積
層板において、前記糸のストランド強度は、穴あけ加工
するドリルの歯が横すべりしない程度に、小さくなって
いることを特徴とする銅張積層板。In a copper-clad laminate in which a number of glass monofilaments are twisted together with a predetermined strand strength, the warp and weft are glass cloth as a base, hardened with resin, and copper foil is layered, the strand strength of the yarn is is a copper-clad laminate whose characteristics are that the teeth of the drill used to drill holes are small enough to prevent them from sliding sideways.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29332087A JPH01135636A (en) | 1987-11-20 | 1987-11-20 | Copper-lining laminated sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29332087A JPH01135636A (en) | 1987-11-20 | 1987-11-20 | Copper-lining laminated sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01135636A true JPH01135636A (en) | 1989-05-29 |
Family
ID=17793304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29332087A Pending JPH01135636A (en) | 1987-11-20 | 1987-11-20 | Copper-lining laminated sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01135636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008084596A (en) * | 2006-09-26 | 2008-04-10 | Kawamura Electric Inc | Earth leakage circuit breaker of three-phase four-wire system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911243A (en) * | 1982-07-10 | 1984-01-20 | 旭シユエ−ベル株式会社 | Glass textile reinforced laminated board |
| JPS59196243A (en) * | 1983-04-23 | 1984-11-07 | 三菱瓦斯化学株式会社 | Manufacture of laminated board |
-
1987
- 1987-11-20 JP JP29332087A patent/JPH01135636A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911243A (en) * | 1982-07-10 | 1984-01-20 | 旭シユエ−ベル株式会社 | Glass textile reinforced laminated board |
| JPS59196243A (en) * | 1983-04-23 | 1984-11-07 | 三菱瓦斯化学株式会社 | Manufacture of laminated board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008084596A (en) * | 2006-09-26 | 2008-04-10 | Kawamura Electric Inc | Earth leakage circuit breaker of three-phase four-wire system |
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