JPS5975501A - Conductive paste - Google Patents
Conductive pasteInfo
- Publication number
- JPS5975501A JPS5975501A JP18547882A JP18547882A JPS5975501A JP S5975501 A JPS5975501 A JP S5975501A JP 18547882 A JP18547882 A JP 18547882A JP 18547882 A JP18547882 A JP 18547882A JP S5975501 A JPS5975501 A JP S5975501A
- Authority
- JP
- Japan
- Prior art keywords
- conductive
- conductive paste
- silver powder
- resin binder
- organic resin
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
[発明の技術分野1
本発明は、種々の基板に導電層を形成したり、各種電子
部品およびリード線等の導電性を必要とする部分の接着
に使用する導電性ペースI・に関するものである。Detailed Description of the Invention [Technical Field of the Invention 1] The present invention relates to a conductive film used for forming conductive layers on various substrates and bonding parts that require conductivity such as various electronic components and lead wires. This relates to Pace I.
し発明の技術的背景とその問題点]
一般に導電性ペーストは銀粉等の導電性フィラーとh(
幾樹脂バインダとから主に構成されているが、銀マイグ
レーションを防止するためマンカン−モリブデン合金を
添加したり、銀の半田段われを防止するためにニッケル
粉、を添加したり、あるいは耐熱性、密着性等を向上さ
けるために水溶性シリコーン化合物等を添加Jることが
行゛われでいる。[Technical background of the invention and its problems] Generally, a conductive paste is a mixture of conductive filler such as silver powder and h(
Although it is mainly composed of a resin binder, mankan-molybdenum alloy is added to prevent silver migration, nickel powder is added to prevent silver solder steps, and heat-resistant, In order to improve adhesion, water-soluble silicone compounds and the like are commonly added.
このような従来の導電性ペーストは、上述の添加物を添
加することによりある程度の特性向上が得られでいるが
、jO−4オーダーの体積固有抵抗を出すのに、高価な
銀を80〜90重量%程度配含Jる必要があり、そのた
め高(門になるという欠点があった。The properties of such conventional conductive pastes have not been improved to some extent by adding the above-mentioned additives, but in order to achieve a volume resistivity on the order of jO-4, it takes 80-90% of expensive silver. It is necessary to contain about % by weight, which has the disadvantage of being high.
[発明の目的1
本発明はこのような欠点を解消するためになされたもの
で、従来の銀含右荀より少ない量で従来のり性、ペース
]・と遜色ない特性を有する導電性ペーストを提供する
ことを目的とり°る。[Objective of the Invention 1] The present invention has been made to eliminate such drawbacks, and provides a conductive paste that has properties comparable to conventional silver-containing pastes in a smaller amount than conventional silver-containing pastes. The aim is to
[発明の概妓J
−すなわら本発明の導電性ペーストは、銀粉と有機樹脂
バインダと無機質非導電性フィラーとを主成分と−りる
ことを特徴とする。[Summary of the Invention J - That is, the conductive paste of the present invention is characterized by containing silver powder, an organic resin binder, and an inorganic non-conductive filler as main components.
本発明に使用する導電性フィラーとしCの銀粉は、どの
ような形状のものでもよいが、平均粒径10μ以下のも
のが望ましい。The conductive filler C silver powder used in the present invention may be of any shape, but preferably has an average particle size of 10 μm or less.
本発明に使用する有機樹脂バインダとしては、アルキッ
ド系樹脂、エポキシ系樹脂、イミド系樹脂、フェノール
系樹脂等の熱硬化性樹脂が適しCJ3す、特にエポキシ
系樹脂が好ましい。また耐熱性を必要とJる用途にはイ
ミド系樹脂が好ましい。As the organic resin binder used in the present invention, thermosetting resins such as alkyd resins, epoxy resins, imide resins, and phenol resins are suitable, and epoxy resins are particularly preferred. Imide resins are also preferred for applications that require heat resistance.
銀粉と有機樹脂バインダとの配合割合は、銀粉/有機樹
脂バインダ=7/3〜9/1が適している。銀粉の割合
が7/3より小さいと必要な導電性が得られず、9/1
より大きい場合は塗布しにくくなるのぐ好ましくない。A suitable mixing ratio of silver powder and organic resin binder is silver powder/organic resin binder = 7/3 to 9/1. If the ratio of silver powder is less than 7/3, the necessary conductivity cannot be obtained, and the ratio is 9/1.
If it is larger, it becomes difficult to apply, which is undesirable.
本発明に使用する無機質非導電性フィラーとしては、ガ
ラスピース′、タルり、炭酸カルシウム、硫酸バリウム
、力Aリン等があげられ、使用する銀粉にりも粒径の大
きいものが望ましい。Examples of the inorganic non-conductive filler used in the present invention include glass piece, tar, calcium carbonate, barium sulfate, and phosphorus, and the silver powder used also preferably has a large particle size.
この無機質非導電性フィラーの添加量としては、銀粉と
有機樹脂バインダの合計ff1100車m部に対して1
〜30重量部、好ましくは5〜25重川部で用る。1重
ω部未満では銀粉のMを減ら−り目的が達成できず、3
0重帝都より多い場合は逆に無奢幾質非導電性フィラー
の接触抵抗が現れるために、必要な導電性が得られない
のC好ましくない。The amount of this inorganic non-conductive filler added is 1 part per m part of a total of ff1100 of silver powder and organic resin binder.
~30 parts by weight, preferably 5 to 25 parts by weight. If it is less than 1 fold ω part, the purpose of reducing M of silver powder cannot be achieved, and 3
If the amount is more than 0, the contact resistance of the non-conductive filler will appear and the necessary conductivity will not be obtained, which is not preferable.
本発明においては上述の成分を混練し、必要な箇所に塗
布し−(120〜b
間加熱硬化させることにJ:り必要な導電層が形成でき
る。In the present invention, the necessary conductive layer can be formed by kneading the above-mentioned components, applying the mixture to the required areas, and heating and curing the mixture for a period of 120 to 100 m.
[発明の実施例1 次に本発明の実施例について説明する。[Embodiment 1 of the invention Next, examples of the present invention will be described.
実施例 表に示づ各成分を混練し、導電性ペーストを製造した。Example Each component shown in the table was kneaded to produce a conductive paste.
この導電性ペーストをガラスエポキシ板上に塗布し、1
50℃で30分間加熱して硬化させた。得られ7j導電
層の体積固有抵抗は同表に示す通りであった。Apply this conductive paste on a glass epoxy plate and
It was cured by heating at 50° C. for 30 minutes. The volume resistivity of the obtained conductive layer 7j was as shown in the same table.
(以下余白)
表からb明らかなように、銀の配合量が75〜85 車
U’i部(゛はガラスピーズを添加することにより体積
固有抵抗が低下し、ある和以上を添加J−るど逆に体積
固有抵抗が上昇しCいる。これはガラスピーズの吊があ
る程度までは銀粉どうしの接触にMJ”=JL/体積固
有抵抗を低下さばているが、ある和以上Cはむしろガラ
スピーズの接触抵抗が現れるため体積【I7.1右抵抗
が1冒するためであると考えられる。(Left below) As is clear from the table, when the amount of silver is 75 to 85, the volume resistivity decreases by adding glass beads. On the contrary, the volume resistivity increases and becomes C.This is because the suspension of the glass beads decreases the volume resistivity due to the contact between silver powders to a certain extent, but above a certain sum C, the glass beads It is thought that this is because the contact resistance of the volume [I7.1] appears and the resistance of the right side is affected by 1.
また銀の配合ωが85重石部の場合でタルクを添加した
場合、体積固有抵抗の低下が見られないが、これはガラ
スピーズの粒径よりタルクの粒径の方が大きいため、タ
ルクの添加によりすでに接触抵抗が現れているためと考
えられる。しかしながら、タルクの場合であっCも、銀
の含有量を減ら寸ことができる。いずれにせに、10−
471−グーの体積固有抵抗を出すため従来は銀粉の含
有ωを80重量%以上必要としていたが、本発明の導電
性ペーストでは無機質非導電性フィラーを銀粉と有機樹
脂バインダの合計間100重量部に対して1〜30.好
ましくは5〜25重川部加用ることにより銀粉の全体に
占める割合を60−80重量%どづることがぐきるので
銀わ)が少なくて済む。In addition, when the silver composition ω is 85 parts and talc is added, no decrease in volume resistivity is observed, but this is because the particle size of talc is larger than the particle size of glass beads. This is thought to be because contact resistance has already appeared. However, in the case of talc, the silver content can also be reduced. In any case, 10-
Conventionally, in order to achieve a volume resistivity of 471-goo, the content ω of silver powder was required to be 80% by weight or more, but in the conductive paste of the present invention, the inorganic non-conductive filler is added to a total of 100 parts by weight between the silver powder and the organic resin binder. 1 to 30. Preferably, by adding 5 to 25 parts by weight, the proportion of silver powder to the total weight can be reduced to 60 to 80% by weight, so that the amount of silver powder can be reduced.
[発明の効果1
以上説明したように、無機質非導電性フィラーの種類や
大きさによりその添加量は異なるが、無機ダ1非導電性
フィラーを添加することにJ、つ−C導電性を高めるこ
とがCき、従って所定の体積固有抵抗を寄るのに銀粉が
少なくて済むという利点があり、導電性ペース1−のコ
ストを下げることが可能になる。[Effect of the invention 1 As explained above, the addition amount varies depending on the type and size of the inorganic non-conductive filler, but the addition of the inorganic non-conductive filler increases J, T-C conductivity. Therefore, there is an advantage that less silver powder is required to achieve a predetermined volume resistivity, and the cost of the conductive paste 1- can be reduced.
代理人弁理士 須 山 仏 −Representative Patent Attorney Suyama Buddha -
Claims (1)
ラーとを主成分とする導電性ペースト。 〈2)有機樹脂バインダはアルキッド系樹脂、エポキシ
系樹脂、イミド系樹脂、フェノール系樹脂から選ばれる
1種または2M以上の熱硬化性樹脂で゛ある特許請求の
範囲第1項記載の導電性ペースト。 (3)無機質非導電性フィラーはガラスピーズ、タルク
、炭酸カルシウム、硫酸バリウムまたはカオリンぐある
特許請求の範囲第1項記載または第2項記載の導電性ペ
ース1〜。 (4)無機質非導電性フィラーの配合量は銀粉と有機樹
脂バインダとの合計量100重量部に対して1〜30重
量部である特許請求の範囲第1項〜第3項のいずれか1
項記載の導電性ペース1−0[Claims] (1) A conductive paste whose main components are silver powder, an organic resin binder, and an inorganic non-conductive filler. (2) The conductive paste according to claim 1, wherein the organic resin binder is one selected from alkyd resins, epoxy resins, imide resins, and phenol resins, or a thermosetting resin of 2M or more. . (3) Conductive pastes 1 to 1 according to claim 1 or 2, wherein the inorganic non-conductive filler is glass beads, talc, calcium carbonate, barium sulfate, or kaolin. (4) The amount of the inorganic non-conductive filler is 1 to 30 parts by weight based on 100 parts by weight of the total amount of silver powder and organic resin binder.
Conductive paste 1-0 described in section
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18547882A JPS5975501A (en) | 1982-10-22 | 1982-10-22 | Conductive paste |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18547882A JPS5975501A (en) | 1982-10-22 | 1982-10-22 | Conductive paste |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5975501A true JPS5975501A (en) | 1984-04-28 |
Family
ID=16171463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18547882A Pending JPS5975501A (en) | 1982-10-22 | 1982-10-22 | Conductive paste |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5975501A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01118580A (en) * | 1987-10-30 | 1989-05-11 | Ibiden Co Ltd | Conductive resin paste |
JPH01286382A (en) * | 1988-05-12 | 1989-11-17 | Gakunan Koki Kk | Paste for printing thick film integrated circuit |
JP2005079251A (en) * | 2003-08-29 | 2005-03-24 | Sumitomo Bakelite Co Ltd | Resin paste for semiconductor and semiconductor device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5222370A (en) * | 1975-08-12 | 1977-02-19 | Ikuo Yamamoto | Automatic cleaning process and equipme of playing and industrial body |
JPS551947A (en) * | 1978-06-20 | 1980-01-09 | Matsushita Electric Ind Co Ltd | Control method of feed speed of welding wires and apparatus thereof |
-
1982
- 1982-10-22 JP JP18547882A patent/JPS5975501A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5222370A (en) * | 1975-08-12 | 1977-02-19 | Ikuo Yamamoto | Automatic cleaning process and equipme of playing and industrial body |
JPS551947A (en) * | 1978-06-20 | 1980-01-09 | Matsushita Electric Ind Co Ltd | Control method of feed speed of welding wires and apparatus thereof |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01118580A (en) * | 1987-10-30 | 1989-05-11 | Ibiden Co Ltd | Conductive resin paste |
JPH01286382A (en) * | 1988-05-12 | 1989-11-17 | Gakunan Koki Kk | Paste for printing thick film integrated circuit |
JP2005079251A (en) * | 2003-08-29 | 2005-03-24 | Sumitomo Bakelite Co Ltd | Resin paste for semiconductor and semiconductor device |
JP4595301B2 (en) * | 2003-08-29 | 2010-12-08 | 住友ベークライト株式会社 | Resin paste for semiconductor and semiconductor device |
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