JPH04147791A - Flux composition for soldering - Google Patents

Flux composition for soldering

Info

Publication number
JPH04147791A
JPH04147791A JP27058490A JP27058490A JPH04147791A JP H04147791 A JPH04147791 A JP H04147791A JP 27058490 A JP27058490 A JP 27058490A JP 27058490 A JP27058490 A JP 27058490A JP H04147791 A JPH04147791 A JP H04147791A
Authority
JP
Japan
Prior art keywords
acid
soldering
alkylene oxide
flux composition
activator
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
Application number
JP27058490A
Other languages
Japanese (ja)
Inventor
Mitsuhiko Sakamoto
光彦 坂本
Kinbun Ou
王 錦文
Isao Morooka
功 師岡
Yoichi Oba
洋一 大場
Sandai Iwasa
山大 岩佐
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.)
Asahi Chemical Research Laboratory Co Ltd
Original Assignee
Asahi Chemical Research Laboratory 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 Asahi Chemical Research Laboratory Co Ltd filed Critical Asahi Chemical Research Laboratory Co Ltd
Priority to JP27058490A priority Critical patent/JPH04147791A/en
Publication of JPH04147791A publication Critical patent/JPH04147791A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To improve washability with water by using specific org. acids as an activator and the alkylene oxide deriv. of specific polyglycerol as a base material. CONSTITUTION:At least one kind of the org. acids selected from oxycarboxylic acid, such as glycolic acid and tartaric acid, and polybasic acids, such as malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, and citric acid, are used as the activator and the alkylene oxide deriv. of the polyglycerol expressed by formula 1 is used as the base material. In the formula 1, B is a residual polyglycerol group of 2 to 20 degree of polymn., a=0 to 40, b=0 to 40, c=0 to 16, d=0 to 16, both a and b are not 0 and c and d are <=40% of the addition mol.wt. of the total alkylene oxide, m=0 to 12, n=0 to 12, and both of m and n are not 0 and m+n=3 to 12.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、プリント配線板等の、はんだ付けの際に用い
るフラックスに関し、更に詳しくは、プリント配線基板
、集積回路あるいは電子回路用部品等の、はんだ付けを
する際に用いる室温で液状のはんだ付け用フラックス組
成物に関する。
Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a flux used for soldering printed wiring boards, etc., and more specifically, to a flux used for soldering printed wiring boards, integrated circuits, electronic circuit parts, etc. , relates to a soldering flux composition that is liquid at room temperature and used when soldering.

(従来の技術) 従来使用されているこの種のはんだ付け用フラックスの
多くは、ロジン変性樹脂系であって、有機溶剤に溶解し
たものが使用された。
(Prior Art) Most soldering fluxes of this kind that have been used in the past are based on rosin-modified resins and are dissolved in organic solvents.

更に、これらのロジン変性樹脂系の有機溶剤型のフラッ
クスの代りに無機酸を主成分とする水洗性のフラックス
も使用された。
Furthermore, instead of these rosin-modified resin-based organic solvent fluxes, water-washable fluxes containing inorganic acids as a main component have also been used.

(発明の解決しようとする課題) しかしながら、一般にロジン変性樹脂系のものは有機溶
剤洗浄型のフラックスであり、かかるフラックスによる
ときには、はんだ付け後のフラックス残漬を除去するた
めにフロン113を主成分とし低級アルコールを含む有
機溶剤を用いて洗浄しなければならない。
(Problems to be Solved by the Invention) However, rosin-modified resin-based fluxes are generally organic solvent cleaning type fluxes, and when using such fluxes, Freon 113 is the main component to remove flux residue after soldering. and must be cleaned using an organic solvent containing lower alcohol.

しかし、フロン113を主成分とする洗浄剤は、地球環
境保護の立場からそれの使用が禁止される方向にある。
However, the use of detergents containing Freon 113 as a main component is being prohibited from the standpoint of protecting the global environment.

また、有機溶剤が高価格であり、そ゛のうえ、有機溶剤
による洗浄では、イオン性物質の除去が困難であり、絶
縁抵抗や誘電性などの電気的な特性を低下させるという
欠点がある。
Further, organic solvents are expensive, and cleaning with organic solvents has the disadvantage that it is difficult to remove ionic substances and deteriorates electrical properties such as insulation resistance and dielectricity.

更に、無機酸を用いた水洗性タイプのフラックスは、プ
リント配線基板上に塗布するソルダーレジスト膜に対し
て、はんだ付け時に化学的な変化を及ぼし、ソルダーレ
ジスト膜のふくれや表面の白化が発生しやすい、また、
絶縁抵抗や誘電率などの電気的な特性を低下させること
により信頼性に欠ける。
Furthermore, washable fluxes that use inorganic acids can chemically change the solder resist film applied to the printed wiring board during soldering, causing blistering of the solder resist film and whitening of the surface. easy, also
It lacks reliability due to a decrease in electrical properties such as insulation resistance and dielectric constant.

本発明は、上記のような欠点のないフラックス、すなわ
ち、水で洗浄可能で電気的な特性の低下が少なく、ソル
ダーレジスト膜のふくれや白化のない、はんだ付け用フ
ラックス組成物を提供することを目的とする。
The present invention aims to provide a flux that does not have the above-mentioned drawbacks, that is, a flux composition for soldering that can be washed with water, has little deterioration in electrical properties, and does not cause blistering or whitening of the solder resist film. purpose.

(課題を解決するための手段) 本発明者等は、これらの目的を解決するため、種々検討
の結果、はんだ付け用フラックス組成物において、グリ
コール酸、酒石酸などのオキシカルボン酸、マロン酸、
コハク酸、グルタル酸、アジピン酸、マレイン酸、クエ
ン酸などの多塩基酸から選ばれた少なくとも1種の有機
酸を活性剤とし、一般式 %式%)] Bは重合度2〜lOのポリグリセリン残基、a・0〜4
0、b=0〜40、c=0〜16、d=0〜16でa、
bがともに0ではなく、かつCとdは全アルキレンオキ
シド付加分子量の40%以下であり、エチレンオキシド
とプロピレンオキシドが共存するときの付加はランダム
でもブロックでもよ(、m=0〜12で、n=0〜12
で■とnが共に0ではなく、■+n =3〜12で示さ
れるポリグリセリンのアルキレンオキシド誘導体化合物
をベース剤とすることを特徴とするはんだ付け用フラッ
クス組成物により解決した。
(Means for Solving the Problems) In order to solve these objects, the present inventors have conducted various studies and found that in soldering flux compositions, oxycarboxylic acids such as glycolic acid and tartaric acid, malonic acid,
At least one organic acid selected from polybasic acids such as succinic acid, glutaric acid, adipic acid, maleic acid, and citric acid is used as an activator, and B is a polyester having a polymerization degree of 2 to 1O. Glycerin residue, a.0-4
0, b = 0 to 40, c = 0 to 16, d = 0 to 16, a,
Both b is not 0, and C and d are 40% or less of the total alkylene oxide addition molecular weight, and when ethylene oxide and propylene oxide coexist, addition may be random or block (, m = 0 to 12, n =0~12
The problem was solved by a soldering flux composition characterized by using as a base agent an alkylene oxide derivative compound of polyglycerin in which both ■ and n are not 0, and ■+n = 3 to 12.

本発明に使用される活性剤としては、オキシカルボン酸
としては、グリコール酸、酒石酸などであり、二塩基酸
としては、マロン酸、コハク酸、グルタル酸、アジピン
酸、マレイン酸などであり、多塩基酸としては、クエン
酸などである。
Examples of the activator used in the present invention include oxycarboxylic acids such as glycolic acid and tartaric acid, and dibasic acids such as malonic acid, succinic acid, glutaric acid, adipic acid, and maleic acid. Examples of the basic acid include citric acid.

そしてこれらの有機酸の活性剤から選ばれた少なくとも
1種もしくは二種以上併用して使用される。
At least one type or a combination of two or more types selected from these organic acid activators are used.

本発明に使用されるベース剤としてのポリグリセリンの
アルキレンオキシド誘導体化合物は1本質的には水滴性
であり、耐熱性に優れかつ洗浄性に優れた化合物であり
、 一般式 %式%] Bは重合度2〜lOのポリグリセリン残基、m=0〜4
0、b=0〜40、C=0〜16、d=0〜16でa、
bがともに0ではなく、かつCとdは全アルキレンオキ
シド付加分子量の40%以下であり、エチレンオキシド
(以下EOと略す)とプロピレンオキシド(以下POと
略す)が共存するときの付加はランダムでもブロックで
もよく、■・0〜12で、n・0〜12で■とnが共に
0ではなく、−十〇・3〜12で示される。
The alkylene oxide derivative compound of polyglycerin as a base agent used in the present invention is a compound that is essentially water-drop-like, has excellent heat resistance, and has excellent detergency. Polyglycerin residue with degree of polymerization 2-1O, m=0-4
0, b=0-40, C=0-16, d=0-16, a,
Both b is not 0, and C and d are 40% or less of the total alkylene oxide addition molecular weight, and when ethylene oxide (hereinafter abbreviated as EO) and propylene oxide (hereinafter abbreviated as PO) coexist, the addition is random or blocked. However, in the case of ■・0 to 12, and n・0 to 12, both ■ and n are not 0, but are expressed as −10・3 to 12.

EOの付加量が限定されるのは、請求範囲以外であると
高い耐熱性が得られず、EO付加量はOH基−個当り4
0モル以下が望ましい、POの付加量が40%以下に限
定されるのは、それ以上であると水に不溶となり良好な
洗浄性が得られず、かつ熱的に不安定となるためである
The reason why the amount of EO added is limited is that if it is outside the claimed range, high heat resistance cannot be obtained, and the amount of EO added is 4 per OH group.
The amount of PO added is preferably 0 mol or less, and is limited to 40% or less because if it is more than that, it becomes insoluble in water, making it impossible to obtain good detergency and becoming thermally unstable. .

EO,POの比率が限定されるもう一つの理由は、良好
な濡れ特性を得るためであり、請求の範囲内が特に望ま
しい。
Another reason why the ratio of EO and PO is limited is to obtain good wetting properties, and it is particularly desirable that the ratio be within the claimed range.

Bで示されるポリグリセリンの重合度が限定されるのは
重合度が1、つまりグリセリンははんだ付け効果が少な
いためであり、重合度がlOを越えると粘度が著しく高
くなってしまうためである。
The degree of polymerization of polyglycerin represented by B is limited because the degree of polymerization is 1, that is, glycerin has little soldering effect, and when the degree of polymerization exceeds 1O, the viscosity becomes extremely high.

(実施例) 本発明を実施例に基づいて詳細に説明する。(Example) The present invention will be explained in detail based on examples.

本発明に使用した化合物は次に示す。The compounds used in the present invention are shown below.

以下の構造式で(Elは−CHR−CH2−0−CH。In the following structural formula (El is -CHR-CH2-0-CH.

(P)は−CH,−CH−0−を示す。(P) represents -CH, -CH-0-.

化合物1     化合物2 化合物3 化合物4.5、 瞥 C)IOIE) 5st1 CHO(El 、H 化合物6 化合物7 化合物8.9 化合物10 実施例1 フラックス組成物の活性成分である酒石酸6g、上記化
合物1.15gをイソプロピルアルコールに溶解して全
体として100gとしたフラックス溶液を作成した。
Compound 1 Compound 2 Compound 3 Compound 4.5, Compound C)IOIE) 5st1 CHO(El, H Compound 6 Compound 7 Compound 8.9 Compound 10 Example 1 6 g of tartaric acid, which is the active ingredient of the flux composition, and the above compound 1. A flux solution was prepared by dissolving 15 g in isopropyl alcohol to make a total of 100 g.

実施例2〜10.比較例1〜5 ベース材料ISgに酒石酸、マロン酸、クエン酸、グリ
コール酸を組合わせてイソプロピルアルコールに溶解し
て全体として100gとしたフラックス溶液を作成し、
下記の方法ではんだ付け性を評価した。
Examples 2-10. Comparative Examples 1 to 5 A flux solution was prepared by combining base material ISg with tartaric acid, malonic acid, citric acid, and glycolic acid and dissolving it in isopropyl alcohol to make a total of 100 g.
Solderability was evaluated using the following method.

なお、活性剤の添加量は、酒石酸の場合6g、マロン酸
の場合4.2g、クエン酸の場合4.2g、グリコール
酸の場合6.1gとした。
The amount of the activator added was 6 g in the case of tartaric acid, 4.2 g in the case of malonic acid, 4.2 g in the case of citric acid, and 6.1 g in the case of glycolic acid.

本発明のフラックス組成物のはんだ付け性の評価方法は
次の方法により評価した。
The solderability of the flux composition of the present invention was evaluated by the following method.

測定装置 レスカ製ソルダーチエカー 5AT−20(1G測定方
法 1)酸化銅(130℃×30分熱処理115よび酸化ニ
ッケル(130℃×lθ分熱処理)のテストピース(0
,3X 5 X 30m■)にフラックスを塗布2)ソ
ルダーチエッカ−を用い、以下の条件ではんだ付けを行
なう はんだ:日本ゲンマ製 H63A はんだ温度=230℃ 浸漬速度: 16m5/sec 浸漬深さ:2■I 浸漬時間; 4sec 3)結果を以下の条件で記録し、濡れ時間(Tlと濡れ
力(L)を求める 測定感度: 2g/25c■ チャートスピード: 60cm/■in濡れ時間(丁) テストピースがはんだ浴に接してから、はんだが接触角
90度で濡れるまでの時間(see’)をメニスコグラ
フから読み取る。
Measuring device Resca solder checker 5AT-20 (1G measurement method 1) Copper oxide (130°C x 30 minutes heat treatment 115) and nickel oxide (130°C x lθ minutes heat treatment) test piece (0
, 3 x 5 x 30 m) 2) Use a solder checker to solder under the following conditions. Solder: Nippon Genma H63A Solder temperature = 230°C Immersion speed: 16m5/sec Immersion depth: 2 ■I Soaking time; 4 sec 3) Record the results under the following conditions to determine wetting time (Tl and wetting force (L)) Measurement sensitivity: 2g/25c■ Chart speed: 60cm/■in wetting time (min) Test piece The time (see') from when the solder comes into contact with the solder bath until the solder gets wet at a contact angle of 90 degrees is read from the meniscograph.

■が小さいほど濡れ性が良好なことを示す。The smaller the value of ■, the better the wettability.

結果を第1表に示す。The results are shown in Table 1.

第 表 (発明の効果) 本発明のはんだ付け性フラックスは従来の製品に比べて
、水溶性で、洗浄性に優れ、はんだ付け性も良好である
Table 1 (Effects of the Invention) The solderable flux of the present invention is water-soluble, has excellent cleanability, and has good solderability compared to conventional products.

Claims (1)

【特許請求の範囲】 はんだ付け用フラックス組成物において、グリコール酸
、酒石酸などのオキシカルボン酸、マロン酸、コハク酸
、グルタル酸、アジピン酸、マレイン酸、クエン酸など
の多塩基酸から選ばれた少なくとも1種の有機酸を活性
剤とし、一般式▲数式、化学式、表等があります▼ Bは重合度2〜10のポリグリセリン残基、a=0〜4
0、b=0〜40、c=0〜16、d=0〜16でa、
bがともに0ではなく、かつcとdは全アルキレンオキ
シド付加分子量の40%以下であり、エチレンオキシド
とプロピレンオキシドが共存するときの付加はランダム
でもブロックでもよく、m=0〜12で、n=0〜12
でmとnが共に0ではなく、m+n=3〜12で示され
るポリグリセリンのアルキレンオキシド誘導体化合物を
ベース剤とすることを特徴とするはんだ付け用フラック
ス組成物。
[Scope of Claims] In the soldering flux composition, an oxycarboxylic acid such as glycolic acid and tartaric acid, and a polybasic acid such as malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, and citric acid are used. At least one type of organic acid is used as an activator, and there are general formulas ▲ mathematical formulas, chemical formulas, tables, etc. ▼ B is a polyglycerin residue with a degree of polymerization of 2 to 10, a = 0 to 4
0, b = 0 to 40, c = 0 to 16, d = 0 to 16, a,
Both b is not 0, and c and d are 40% or less of the total alkylene oxide addition molecular weight, and when ethylene oxide and propylene oxide coexist, the addition may be random or block, m = 0 to 12, and n = 0-12
A flux composition for soldering, characterized in that m and n are both not 0, and the alkylene oxide derivative compound of polyglycerin represented by m+n=3 to 12 is used as a base agent.
JP27058490A 1990-10-11 1990-10-11 Flux composition for soldering Pending JPH04147791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27058490A JPH04147791A (en) 1990-10-11 1990-10-11 Flux composition for soldering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27058490A JPH04147791A (en) 1990-10-11 1990-10-11 Flux composition for soldering

Publications (1)

Publication Number Publication Date
JPH04147791A true JPH04147791A (en) 1992-05-21

Family

ID=17488163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27058490A Pending JPH04147791A (en) 1990-10-11 1990-10-11 Flux composition for soldering

Country Status (1)

Country Link
JP (1) JPH04147791A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5985126A (en) * 1996-07-15 1999-11-16 Semitool, Inc. Semiconductor plating system workpiece support having workpiece engaging electrodes with distal contact part and dielectric cover
JP2012115871A (en) * 2010-11-30 2012-06-21 Panasonic Corp Solder paste
JP6332526B1 (en) * 2017-05-25 2018-05-30 千住金属工業株式会社 flux

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5985126A (en) * 1996-07-15 1999-11-16 Semitool, Inc. Semiconductor plating system workpiece support having workpiece engaging electrodes with distal contact part and dielectric cover
JP2012115871A (en) * 2010-11-30 2012-06-21 Panasonic Corp Solder paste
JP6332526B1 (en) * 2017-05-25 2018-05-30 千住金属工業株式会社 flux
JP2018196900A (en) * 2017-05-25 2018-12-13 千住金属工業株式会社 flux

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