JPS6256679B2 - - Google Patents
Info
- Publication number
- JPS6256679B2 JPS6256679B2 JP58170292A JP17029283A JPS6256679B2 JP S6256679 B2 JPS6256679 B2 JP S6256679B2 JP 58170292 A JP58170292 A JP 58170292A JP 17029283 A JP17029283 A JP 17029283A JP S6256679 B2 JPS6256679 B2 JP S6256679B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- glass cloth
- laminate
- sio
- less
- 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
- 239000004744 fabric Substances 0.000 claims description 19
- 239000011521 glass Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 10
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 9
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
- 238000000465 moulding Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Description
〔技術分野〕
この発明は、産業機器、電子機器、電気機器等
に用いられる印刷配線板用の積層板とその基材に
関する。
〔背景技術〕
多層印刷配線板は、一般に、表面に電気回路が
形成された内層（内装）用積層板と、外層（外
装）用回路板との間に、樹脂含浸基材（樹脂含浸
ガラス布等の樹脂含浸布や樹脂含浸紙）を介在さ
せて積層成形することによりつくられているが、
多層印刷配線板の高多層化、高密度化に伴い、リ
ード線のハンダ付けが脱落するという事故が多発
するようになつてきた。これは、熱負荷時におけ
る積層板の寸法変化が大きいことが主要な原因で
ある。このため、寸法安定性に優れた積層板が強
く要望されていた。
〔発明の目的〕
ここに開示する発明は、このような事情に鑑み
なされたもので、寸法安定性に優れた積層板と、
そのような積層板をつくるのに適し寸法安定性に
優れたガラス布を提供することを目的としてい
る。
〔発明の開示〕
前記のような目的を達成するため、第１の発明
は、SiO2，Al2O3，MgOの含有量が、それぞれ、
60重量％以上、20重量％以上、15重量％以下で、
かつ、これら３成分の合計が97重量％以上である
ことを特徴とする積層板用ガラス布をその要旨と
し、第２の発明は、ガラス布が基材として用いら
れている積層板であつて、ガラス布として、
SiO2，Al2O3，MgOの含有量が、それぞれ、60重
量％以上、20重量％以上、15重量％以下で、か
つ、これら３成分の合計が97重量％以上となつて
いるものが用いられていることを特徴とする積層
板をその要旨としている。以下に、上記二つの発
明を詳しく説明する。
従来、積層板用の基材として紙、ガラス布等
様々なものが用いられているが、いずれも、熱膨
張率が大きいため、寸法安定性が劣つている。発
明者らは、ガラス布に着目し、寸法安定性の優れ
たものを得ようとして研究を重ねた。その結果、
ガラス布におけるSiO2，Al2O3，MgOの含有量が
重要であり、それぞれ、60重量％以上、20重量％
以上、15重量％以下で、かつ、これら３成分の合
計が97重量％以上、すなわち、B2O3，K2O，
Na2O，CaO等の他の成分の合計が３重量％未満
となるようにすれば、熱膨張率を３×10-6mm／mm
℃程度と小さくすることも可能であつて、寸法安
定性を優れたものとすることができるということ
を見い出したのである。SiO2の含有量が60重量
％未満の場合や、MgOの含有量が20重量％未満
の場合は寸法安定性が悪くなり、Al2O3の含有量
が15重量％を超えるとドリル加工性が悪くなる。
また、ガラス布がAl2O3あるいはSiO2の１成分か
らなる場合は硬度が上昇して、加工性が悪くな
る。
通常の基材用ガラス布と第１の発明にかかるガ
ラス布の組成を第１表に示す。
[Technical Field] The present invention relates to a laminate for a printed wiring board used in industrial equipment, electronic equipment, electrical equipment, etc., and its base material. [Background Art] Multilayer printed wiring boards generally include a resin-impregnated base material (resin-impregnated glass cloth) between an inner layer (interior) laminate on which an electric circuit is formed and an outer layer (exterior) circuit board. It is made by lamination molding with intervening resin-impregnated cloth or resin-impregnated paper, such as
As the number of layers and density of multilayer printed wiring boards increases, accidents such as soldering of lead wires falling off have become more frequent. The main reason for this is that the laminate undergoes a large dimensional change under heat load. For this reason, there has been a strong demand for laminates with excellent dimensional stability. [Object of the invention] The invention disclosed herein was made in view of the above circumstances, and provides a laminate with excellent dimensional stability,
The object of the present invention is to provide a glass cloth that is suitable for making such a laminate and has excellent dimensional stability. [Disclosure of the Invention] In order to achieve the above-mentioned object, the first invention provides a method in which the contents of SiO 2 , Al 2 O 3 and MgO are as follows:
60% by weight or more, 20% by weight or more, and 15% by weight or less,
The gist of the invention is a glass cloth for a laminate, characterized in that the total of these three components is 97% by weight or more, and a second invention is a laminate in which the glass cloth is used as a base material, , as glass cloth,
The content of SiO 2 , Al 2 O 3 , and MgO is 60% by weight or more, 20% by weight or more, and 15% by weight or less, respectively, and the total of these three components is 97% by weight or more. Its gist is the laminate plate that is characterized by its use. The above two inventions will be explained in detail below. Conventionally, various materials such as paper and glass cloth have been used as base materials for laminates, but all of them have a high coefficient of thermal expansion and therefore have poor dimensional stability. The inventors focused on glass cloth and conducted repeated research in an attempt to obtain one with excellent dimensional stability. the result,
The content of SiO 2 , Al 2 O 3 , and MgO in the glass cloth is important, and should be 60% by weight or more and 20% by weight, respectively.
15% by weight or less, and the total of these three components is 97% by weight or more, that is, B 2 O 3 , K 2 O,
If the total of other components such as Na 2 O and CaO is less than 3% by weight, the coefficient of thermal expansion can be reduced to 3×10 -6 mm/mm.
They have discovered that it is possible to reduce the temperature to as low as about 0.degree. C., and that it is possible to achieve excellent dimensional stability. If the content of SiO 2 is less than 60% by weight or if the content of MgO is less than 20% by weight, the dimensional stability will be poor, and if the content of Al 2 O 3 is more than 15% by weight, the drilling workability will be poor. becomes worse.
Furthermore, when the glass cloth is made of one component of Al 2 O 3 or SiO 2 , the hardness increases and the workability deteriorates. Table 1 shows the compositions of the ordinary glass cloth for substrates and the glass cloth according to the first invention.
つぎのようにして、実施例の積層板をつくつ
た。SiO2，Al2O3，MgOの含有量がそれぞれ64重
量％、24重量％、12重量％であるガラス布を基材
として使用し、樹脂量が50重量％となるようにポ
リイミド（ケルイミド601）をガラス布に含浸さ
せて樹脂含浸基材をつくつた。この樹脂含浸基材
を８枚重ね合わせ、さらに、上下面に厚み35mmの
銅箔を重ね合わせたのち、200℃、70Kg／cm2の条
件で90分間加熱、加圧することによつて積層成形
を行い、積層板を得た。
得られた積層板の熱膨張率および誘電率を測定
した。測定結果を第２表に示す。
The laminate of the example was produced in the following manner. Glass cloth with SiO 2 , Al 2 O 3 , and MgO contents of 64%, 24%, and 12% by weight, respectively, was used as the base material, and polyimide (Kelimide 601) was used so that the resin content was 50% by weight. ) was impregnated into glass cloth to create a resin-impregnated base material. After stacking 8 sheets of this resin-impregnated base material and further stacking 35 mm thick copper foil on the top and bottom surfaces, laminate molding was performed by heating and pressurizing at 200℃ and 70Kg/ cm2 for 90 minutes. A laminate was obtained. The thermal expansion coefficient and dielectric constant of the obtained laminate were measured. The measurement results are shown in Table 2.
第１の発明にかかる積層板用ガラス布は、
SiO2，Al2O3，MgOの含有量が、それぞれ、60重
量％以上、20重量％以上、15重量％以下で、か
つ、これら３成分の合計が97重量％以上であるの
で、寸法安定性に優れている。そのため、このよ
うなガラス布を基材として用いた第２の発明にか
かる積層板は、寸法安定性が向上し、熱負荷時に
ハンダ付けが脱落するなどの問題を生じにくい。
The glass cloth for laminated plates according to the first invention includes:
The contents of SiO 2 , Al 2 O 3 , and MgO are 60% by weight or more, 20% by weight or more, and 15% by weight or less, respectively, and the total of these three components is 97% by weight or more, so it is dimensionally stable. Excellent in sex. Therefore, the laminate according to the second invention using such a glass cloth as a base material has improved dimensional stability and is less prone to problems such as soldering coming off during heat load.
Claims (1)
60重量％以上、20重量％以上、15重量％以下で、
かつ、これら３成分の合計が97重量％以上である
ことを特徴とする積層板用ガラス布。 ２ ガラス布が基材として用いられている積層板
であつて、ガラス布として、SiO2，Al2O3，MgO
の含有量が、それぞれ、60重量％以上、20重量％
以上、15重量％以下で、かつ、これら３成分の合
計が97重量％以上となつているものが用いられて
いることを特徴とする積層板。[Claims] 1. The content of SiO 2 , Al 2 O 3 and MgO is
60% by weight or more, 20% by weight or more, and 15% by weight or less,
A glass cloth for a laminate, characterized in that the total of these three components is 97% by weight or more. 2 A laminate in which glass cloth is used as a base material, and the glass cloth is made of SiO 2 , Al 2 O 3 , MgO
The content of is 60% or more and 20% by weight, respectively.
A laminate characterized in that the above components are 15% by weight or less, and the total of these three components is 97% by weight or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17029283A JPS6060797A (en) | 1983-09-13 | 1983-09-13 | Galss cloth for laminated board and laminated board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17029283A JPS6060797A (en) | 1983-09-13 | 1983-09-13 | Galss cloth for laminated board and laminated board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6060797A JPS6060797A (en) | 1985-04-08 |
| JPS6256679B2 true JPS6256679B2 (en) | 1987-11-26 |
Family
ID=15902250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17029283A Granted JPS6060797A (en) | 1983-09-13 | 1983-09-13 | Galss cloth for laminated board and laminated board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6060797A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE61970T1 (en) * | 1987-10-14 | 1991-04-15 | Akzo Nv | LAMINATE OF METAL LAYERS AND CONTINUOUS FIBER REINFORCED SYNTHETIC MATERIAL. |
| JPH03112650A (en) * | 1989-09-27 | 1991-05-14 | Shin Kobe Electric Mach Co Ltd | Thermosetting resin laminated board and glass woven fabric base material for laminated board |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4825076A (en) * | 1971-07-30 | 1973-04-02 | ||
| JPS4830125U (en) * | 1971-08-12 | 1973-04-13 | ||
| JPS4830125A (en) * | 1971-08-23 | 1973-04-20 |
-
1983
- 1983-09-13 JP JP17029283A patent/JPS6060797A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4825076A (en) * | 1971-07-30 | 1973-04-02 | ||
| JPS4830125U (en) * | 1971-08-12 | 1973-04-13 | ||
| JPS4830125A (en) * | 1971-08-23 | 1973-04-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6060797A (en) | 1985-04-08 |
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