JP3187005B2 - Coated electronic circuit - Google Patents
Coated electronic circuitInfo
- Publication number
- JP3187005B2 JP3187005B2 JP36227797A JP36227797A JP3187005B2 JP 3187005 B2 JP3187005 B2 JP 3187005B2 JP 36227797 A JP36227797 A JP 36227797A JP 36227797 A JP36227797 A JP 36227797A JP 3187005 B2 JP3187005 B2 JP 3187005B2
- Authority
- JP
- Japan
- Prior art keywords
- electronic circuit
- present
- chain atoms
- battery
- diacrylate
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Paints Or Removers (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
- Secondary Cells (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、基板との密着性お
よび耐溶剤性に優れた樹脂によって被覆されたハイブリ
ッドＩＣ、実装回路等の電子回路に関し、特に電池と接
続されて用いる場合に電解液が漏れた場合にも電子回路
の機能に異常を起こさない信頼性の高い電子回路に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic circuit such as a hybrid IC or a mounting circuit coated with a resin having excellent adhesion to a substrate and excellent solvent resistance, and more particularly to an electrolytic solution for use when connected to a battery. The present invention relates to a highly reliable electronic circuit that does not cause an abnormality in the function of the electronic circuit even when leakage occurs.
【０００２】[0002]
【従来の技術】従来、電子回路は過酷な環境下では、湿
気、ほこり、酸性ガスなどによりコンデンサーやトラン
ジスタなどの搭載部品のピン足およびコネクター部が腐
食したり、結露することがあり、このような状態になる
とハイブリッドＩＣ、実装回路板は正常に機能しないと
いうトラブルにつながる。これらを防止したり、搭載電
子部品の補強を目的として電子回路表面に樹脂をコーテ
ィングし保護することがなされてきているが、かかる樹
脂コーティングにより強固な皮膜を形成させようとする
と高温での硬化が必要となり、電子回路の機能が損なわ
れるという問題があった。かかる問題を解決せんと例え
ば特開昭６１−２７８８４５号公報によればハイブリッ
ドＩＣ、実装回路板の一部または全体に光硬化性の防湿
絶縁塗料を塗布し、保護膜を形成することが提案されて
いる。2. Description of the Related Art Conventionally, in a harsh environment, pin feet and connectors of mounted components such as capacitors and transistors may be corroded or dewed by harsh environments such as moisture, dust, and acid gas. In such a situation, the hybrid IC and the mounted circuit board may not function properly. To prevent these problems and to reinforce the mounted electronic components, it has been attempted to protect the electronic circuit surface by coating it with a resin.However, if such a resin coating is used to form a strong film, curing at high temperatures will occur. This necessitates a problem that the function of the electronic circuit is impaired. In order to solve such a problem, for example, according to Japanese Patent Application Laid-Open No. 61-278845, it has been proposed to form a protective film by applying a photocurable moisture-proof insulating paint to a part or the whole of a hybrid IC and a mounting circuit board. ing.
【０００３】この方法によれば低温で硬化させることが
可能となるが、電子回路に対する信頼性は更に強く望ま
れて来ており、この方法によってもその効果は未だ不十
分であり、特に近年リチウムイオン二次電池等の非水系
二次電池が電子機器の電源として広く用いられるように
なってくるに従い、これらの電池から万一腐食性の高い
無機塩を含有する電解液が漏れた場合には電子回路の誤
作動をおこし重大なトラブルにつながる。これらの電解
液に対する耐性も従来の方法では満足すべきものではな
かった。[0003] According to this method, it is possible to cure at a low temperature, but the reliability of electronic circuits has been more strongly desired, and the effect is still insufficient by this method. As non-aqueous secondary batteries such as ion secondary batteries have become widely used as power supplies for electronic devices, if electrolyte containing highly corrosive inorganic salts leaks from these batteries, The malfunction of the electronic circuit may cause serious trouble. The resistance to these electrolytes has not been satisfactory with the conventional methods.
【０００４】[0004]
【発明が解決しようとする課題】かかる観点より本発明
は低温で硬化可能な光硬化性樹脂を用い、より耐性の高
い樹脂皮膜を電子回路に被覆させることにより、あらゆ
る環境下においても誤動作のない電子回路を得ることを
目的とするものであり、特に環境に対して敏感な電圧検
出素子やＦＥＴを含む電子回路の信頼性を向上せしめん
とするものである。特に電池に用いられている腐食性の
高い無機塩を含む電解液が漏れ、電子回路に接触した場
合にも誤作動を引き起こさないような耐性の高い皮膜を
形成させることにより電子回路の信頼性を高めようとす
るものである。更にはかかる信頼性の高い電子回路と接
続された安全性の高い電池を得んとするものである。From this viewpoint, the present invention uses a photocurable resin which can be cured at a low temperature and coats an electronic circuit with a resin film having higher resistance so that no malfunction occurs in any environment. An object of the present invention is to obtain an electronic circuit, and particularly to improve the reliability of an electronic circuit including a voltage detection element and an FET that are sensitive to the environment. In particular, electrolytes containing highly corrosive inorganic salts used in batteries leak and leak out and, when they come in contact with electronic circuits, form a highly resistant film that does not cause malfunctions, thereby improving the reliability of electronic circuits. It is to try to raise it. It is another object of the present invention to obtain a highly safe battery connected to such a highly reliable electronic circuit.
【０００５】[0005]
【課題を解決するための手段】本発明の第一の手段はチ
ェーン原子数が２以上２０以下である多官能性モノマー
及び／又はマクロマーを５重量％以上含む光硬化性組成
物により硬化された皮膜により被覆された電子回路であ
り、第二の手段は非水系リチウムイオン二次電池が接続
された、チェーン原子数が２以上２０以下である多官能
性モノマー及び／又はマクロマーを５重量％以上含む光
硬化性組成物の硬化された皮膜により被覆されたことを
特徴とする電子回路である。According to a first aspect of the present invention, there is provided a photocurable composition containing at least 5% by weight of a polyfunctional monomer and / or macromer having 2 to 20 chain atoms. The second means is an electronic circuit covered with a film, wherein a non-aqueous lithium ion secondary battery is connected, and a polyfunctional monomer and / or macromer having a chain atom number of 2 or more and 20 or less is 5% by weight or more. An electronic circuit characterized by being covered with a cured film of a photocurable composition containing the composition.
【０００６】[0006]
【発明の実施の形態】本発明によれば電子回路との密着
性に優れしかも耐溶剤性も備えた樹脂に関して、鋭意研
究を行った結果、特定の光硬化性組成物を硬化させるこ
とにより極めて優れた耐環境特性が得られることが見出
された。即ち本発明で用いられる光硬化性組成物はチェ
ーン原子数が２以上２０以下の多官能性モノマー及び／
又はマクロマーが５重量％以上含まれていなければなら
ない。ここでチェーン原子数とは多官能性モノマー、マ
クロマーが有する隣り合う官能基間につながっている原
子の数であり、三つ以上の官能基を有する場合には隣り
合う官能基間をつなぐ原子数の内、少ない方の原子数を
チェーン原子数という。例えばエチレングリコールジア
クリレートの場合チェーン原子数は下式の通り、 ＣＨ2 ＝ＣＨ―Ｃ―Ｏ―Ｃ―Ｃ―Ｏ―Ｃ―ＣＨ＝ＣＨ2 下線部の原子の数がチェーン原子数と定義され、その値
は６である。BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, as a result of diligent research on a resin having excellent adhesion to an electronic circuit and also having solvent resistance, it has been found that a resin having a specific photocurable composition is extremely cured. It has been found that excellent environmental resistance properties can be obtained. That is, the photocurable composition used in the present invention is a polyfunctional monomer having 2 to 20 chain atoms and / or
Alternatively, it must contain at least 5% by weight of a macromer. Here, the number of chain atoms is the number of atoms connected between adjacent functional groups of the polyfunctional monomer or macromer, and when there are three or more functional groups, the number of atoms connecting adjacent functional groups. Of these, the smaller number of atoms is called the number of chain atoms. For example, in the case of ethylene glycol diacrylate, the number of chain atoms is as follows: CH 2 ＣＨCH —CO—C—C—O—C —CH = CH 2 The number of underlined atoms is defined as the number of chain atoms. , Its value is 6.
【０００７】本発明においてチェーン原子数は、２以上
２０以下でなければならない。好ましくは４以上１８以
下であり、更に好ましくは６以上１５以下である。チェ
ーン原子数が２未満の場合は硬化速度が遅く好ましくな
い。チェーン原子数が２１以上の場合は硬化された皮膜
の化学的な耐性が十分でなく好ましくない。また、本発
明においてかかるチェーン原子数が２以上２０以下の多
官能性モノマー及び／又はマクロマーが５重量％以上含
まれていなければならない。好ましくは２５重量％以上
であり、更に好ましくは４５重量％以上である。５重量
％未満の場合は硬化された樹脂の化学的安定性が不十分
であり、又、硬化速度も遅くなり好ましくない。本発明
でいう多官能性モノマー又はマクロマーとは重合性を有
する官能基を二つ以上有する化合物であり、官能基とし
ては重合性二重結合、重合性オキシラン結合等が一例と
して挙げられる。In the present invention, the number of chain atoms must be 2 or more and 20 or less. It is preferably 4 or more and 18 or less, and more preferably 6 or more and 15 or less. When the number of chain atoms is less than 2, the curing speed is unfavorably low. When the number of chain atoms is 21 or more, the cured film has insufficient chemical resistance, which is not preferable. In the present invention, the polyfunctional monomer and / or macromer having 2 to 20 chain atoms must be contained in an amount of 5% by weight or more. It is preferably at least 25% by weight, more preferably at least 45% by weight. If the amount is less than 5% by weight, the chemical stability of the cured resin is insufficient, and the curing speed is undesirably low. The polyfunctional monomer or macromer referred to in the present invention is a compound having two or more polymerizable functional groups, and examples of the functional group include a polymerizable double bond and a polymerizable oxirane bond.
【０００８】かかる条件を満足するモノマー、マクロマ
ーの一例を示せばエチレングリコールジメタクリレー
ト、１，６−ヘキサンジオールジメタクリレート、ポリ
ウレタンジメタクリレート、ポリエーテルジメタクリレ
ート、ポリエステルジメタクリレートなどの２官能性の
メタクリル酸エステル、トリメチロールプロパントリメ
タクリレートなどの３官能性のメタクリル酸エステル、
エチレングリコールジアクリレート、ジエチレングリコ
ールジアクリレート、１，４−ブタンジオールジアクリ
レート、ジメチロールートリシクロデカンージアクリレ
ート、ネオペンチルグリコールジアクリレート、シクロ
へキサンーエチレンオキサイドージアクリレート、トリ
プロピレングリコールジアクリレートなどの２官能性ア
クリル酸エステル、トリメチロールプロパントリアクリ
レート、グリセリントリアクリレート、ペンタエリスリ
トールトリアクリレート等の３官能性のアクリル酸エス
テル、ビスフェノールＡ―ジグリシジルエーテル等のエ
ポキシ系化合物等が挙げられる。Examples of monomers and macromers satisfying the above conditions include bifunctional methacrylic acids such as ethylene glycol dimethacrylate, 1,6-hexanediol dimethacrylate, polyurethane dimethacrylate, polyether dimethacrylate, and polyester dimethacrylate. Esters, trifunctional methacrylates such as trimethylolpropane trimethacrylate,
Ethylene glycol diacrylate, diethylene glycol diacrylate, 1,4-butanediol diacrylate, dimethylol-tricyclodecane diacrylate, neopentyl glycol diacrylate, cyclohexane-ethylene oxide diacrylate, tripropylene glycol diacrylate, etc. And trifunctional acrylates such as trimethylolpropane triacrylate, glycerin triacrylate and pentaerythritol triacrylate, and epoxy compounds such as bisphenol A-diglycidyl ether.
【０００９】更に本発明の目的を逸脱しない範囲内で、
プロピレングリコールモノアクリレート、ポリエチレン
グリコールモノアクリレート、２−エチルヘキシルモノ
アクリレート、フェノキシエチルモノアクリレート、２
−エトキシエチルモノアクリレート、２−ヒドロキシエ
チルモノアクリレート、２−ヒドロキシプロピルモノア
クリレート、ジシクロペンテニルオキシエチルモノアク
リレート、ｎ−ビニルピロリドン、酢酸ビニル等の単官
能性モノマー、マクロマーを併用しても良い。Further, without departing from the object of the present invention,
Propylene glycol monoacrylate, polyethylene glycol monoacrylate, 2-ethylhexyl monoacrylate, phenoxyethyl monoacrylate, 2
Monofunctional monomers such as ethoxyethyl monoacrylate, 2-hydroxyethyl monoacrylate, 2-hydroxypropyl monoacrylate, dicyclopentenyloxyethyl monoacrylate, n-vinylpyrrolidone, and vinyl acetate, and macromers may be used in combination.
【００１０】本発明で言う電子回路とはＬＳＩ，トラン
ジスター、コンデンサー、ＦＥＴ、電圧検出素子、ヒュ
ーズ、サーミスター、抵抗素子等の素子の少なくとも一
つが組み込まれた電子回路であり、ガラスエポキシ樹脂
基板、紙フェノール樹脂基板、アルミナ基板等の基板上
に実装されたものも含む。特に本発明の組成物の硬化皮
膜を形成させた場合には電圧検出素子、ＦＥＴ等の環境
に敏感な素子を含む電子回路に対して顕著な効果が見い
だされる。The electronic circuit referred to in the present invention is an electronic circuit incorporating at least one of an LSI, a transistor, a capacitor, an FET, a voltage detection element, a fuse, a thermistor, a resistance element, and the like. Also includes those mounted on substrates such as paper phenolic resin substrates and alumina substrates. In particular, when a cured film of the composition of the present invention is formed, a remarkable effect is found on electronic circuits including environmentally sensitive elements such as voltage detection elements and FETs.
【００１１】更に本発明によれば、本発明の組成物の硬
化皮膜が形成された電子回路が接続された電池において
優れた効果が発揮される。即ち、近年電池の小型軽量化
により携帯電話、パソコン等の多くの電子機器のポータ
ブル化が進み、かかる電子回路と電池とが接続されて用
いられるケースが増えてきている。それに伴い、電池に
用いられている電解液が漏れた場合に電子回路が異常を
きたし、トラブルが発生するケースが増えてきている。Further, according to the present invention, excellent effects are exhibited in a battery connected to an electronic circuit on which a cured film of the composition of the present invention is formed. That is, in recent years, many electronic devices such as mobile phones and personal computers have become portable due to the reduction in size and weight of batteries, and cases in which such electronic circuits are connected to batteries have been increasing. As a result, when the electrolyte used in the battery leaks, the electronic circuit becomes abnormal and troubles are increasing.
【００１２】ニッカド電池、ニッケル水素電池等のアル
カリ二次電池の場合には強アルカリ性の水溶液によりか
かる電子回路にダメージを与える。又、近年急速に使わ
れるようになったリチウムイオン二次電池のような非水
系電池の場合には溶解性の高い有機溶剤、更には電解質
として用いられている無機塩により同様に電子回路がダ
メージを受けトラブルにつながる。本発明の組成物の硬
化皮膜が形成された電子回路とかかる電池とが接続され
た場合には、例え電解液が漏れ電子回路に接触した場合
にも強い耐性を示し電圧検出異常、スイッチング機能異
常等のトラブルが避けられる。In the case of an alkaline secondary battery such as a nickel cadmium battery or a nickel hydride battery, such an electronic circuit is damaged by a strong alkaline aqueous solution. In the case of non-aqueous batteries such as lithium ion secondary batteries that have been rapidly used in recent years, similarly, electronic circuits are similarly damaged by highly soluble organic solvents and inorganic salts used as electrolytes. Can lead to trouble. When the electronic circuit on which the cured film of the composition of the present invention is formed is connected to such a battery, even if the electrolytic solution comes into contact with the electronic circuit, it exhibits strong resistance even when it comes into contact with the electronic circuit. And other troubles can be avoided.
【００１３】特にかかる電池と接続された電子回路は充
電制御、過充電防止制御、過放電防止制御等の重要な機
能を果たしているケースが多く、本発明の技術により安
全性という観点からも大きな効果が発揮される。かかる
本発明の光硬化性組成物により電子回路を被覆させる方
法としては、特に限定されるものではないが、まず液状
の本発明組成物を電子回路にディッピング、スプレー、
刷毛塗り等の手段によりコーティングした後、光照射す
ることにより容易に、短時間で硬化させることができ
る。光源としては水銀灯、メタルハライドランプ、陽光
ランプ等が用いられる。In particular, the electronic circuit connected to such a battery often performs important functions such as charge control, overcharge prevention control, and overdischarge prevention control, and the technology of the present invention has a great effect from the viewpoint of safety. Is exhibited. The method of coating an electronic circuit with the photocurable composition of the present invention is not particularly limited, but first, dipping the present liquid composition into the electronic circuit, spraying,
After coating by means such as brushing, it can be easily and quickly cured by light irradiation. As a light source, a mercury lamp, a metal halide lamp, a sunlight lamp, or the like is used.
【００１４】本発明の光硬化組成物は前述の光重合性化
合物以外にベンゾイン、ベンゾインエチルエーテル等の
ベンゾイン化合物、ベンゾフェノン、ジアセチル等のケ
トン化合物、ベンゾイルパーオキサイド、tert−ブチル
パーオキサイド、tert−ブチルパーオキシベンゾエート
等の過酸化化合物、更にはジフェニルスルフィド、エオ
シン、チオニン、ジアゾニウム塩、ハロニウム塩、スル
フォニウム塩等の光重合開始剤、重合安定剤、着色剤等
の添加物が併用されてもよい。以下実施例により本発明
を更に詳しく説明する。The photocurable composition of the present invention may further comprise a benzoin compound such as benzoin or benzoin ethyl ether, a ketone compound such as benzophenone or diacetyl, benzoyl peroxide, tert-butyl peroxide, or tert-butyl. Peroxide compounds such as peroxybenzoate, and further, additives such as photopolymerization initiators such as diphenyl sulfide, eosin, thionine, diazonium salts, halonium salts, and sulfonium salts, polymerization stabilizers, and coloring agents may be used in combination. Hereinafter, the present invention will be described in more detail with reference to Examples.
【００１５】[0015]
【実施例】（実施例１）光反応性のモノマー４種、即
ち、チェーン原子数７のトリメチロールプロパン- トリ
アクリレート１６部、チェーン原子数１１のジメチロー
ル- トリシクロデカン- ジアクリレート４８部、チェー
ン原子数７のネオペンチルグリコール２６部、ポリエチ
レングリコール−ジアクリレート( チェーン原子数２１
以上)１部に反応開始剤Ｐ−ジメチル−アミノ−アセト
フェノン３．６部、ベンゾフェノン５．４部、1−ヒド
ロキシシクロヘキシルフェニルケトン０．９部、フェニ
ルグリオキシル酸メチル０．２部と重合禁止剤であるＢ
ＨＴを添加し、適宜トルエンを微量添加し、粘度を２０
ｃｐｓの試料Ａを得た。Ａ中に電圧検出素子とＭＯＳ−
ＦＥＴを有する電子回路を浸せきし、メタルハライドラ
ンプにより８０ｃａｌ／ｍ2 程度を１分以上照射し、硬
化させ、樹脂被覆した電子回路を得た。この電子回路を
非水電池の電解液であるプロピレンカーボネートと炭酸
ジエチルの１：１混合溶剤にＬｉＰＦ6 を１Ｍ濃度に溶
解させた液に２４時間浸漬した。２４時間後取り出し被
膜の膨潤度の測定と電圧検出素子とＭＯＳ−ＦＥＴの作
動テストを行った。結果をまとめて表２−１に示す。EXAMPLE 1 Four kinds of photoreactive monomers, namely, 16 parts of trimethylolpropane-triacrylate having 7 chain atoms, 48 parts of dimethylol-tricyclodecane-diacrylate having 11 chain atoms, and a chain 26 parts of neopentyl glycol having 7 atoms, polyethylene glycol-diacrylate (21 chain atoms)
(1 part) 3.6 parts of a reaction initiator P-dimethyl-amino-acetophenone, 5.4 parts of benzophenone, 0.9 part of 1-hydroxycyclohexyl phenyl ketone, 0.2 part of methyl phenylglyoxylate, and a polymerization inhibitor. A B
HT was added, and a slight amount of toluene was added as appropriate to obtain a viscosity of 20.
A sample A of cps was obtained. The voltage detection element and MOS-
An electronic circuit having an FET was immersed, irradiated with a metal halide lamp at about 80 cal / m 2 for 1 minute or more, cured, and a resin-coated electronic circuit was obtained. This electronic circuit was immersed for 24 hours in a liquid in which LiPF 6 was dissolved at a concentration of 1M in a 1: 1 mixed solvent of propylene carbonate and diethyl carbonate, which is an electrolyte of a non-aqueous battery. Twenty-four hours later, the taken-out film was measured for the degree of swelling and tested for the operation of the voltage detection element and the MOS-FET. The results are shown in Table 2-1.
【００１６】（実施例２）光反応性のモノマー５種、即
ちトリメチロールプロパン−トリアクリレート（チェー
ン原子数７）１４部、ジメチロール−トリシクロデカン
−ジアクリレート（チェーン原子数１１）４２部、ネオ
ペンチルグリコール（チェーン原子数２１以上）２３
部、ＴＤＩ／ＰＴＭＧポリウレタン−ジアクリレート
（チェーン原子数２１以上）８．７部、ポリエチレング
リコール−ジアクリレート（チェーン原子数２１以上）
２．６部に反応開始剤Ｐ−ジメチル−アミノ−アセトフ
ェノン３．２部、ベンゾフェノン４．８部、１−ヒドロ
キシシクロヘキシルフェニルケトン１．６部、フェニル
グリオキシル酸メチル０．３部と重合禁止剤であるＢＨ
Ｔを添加し、適宜トルエンを微量添加し、粘度を８１ｃ
ｐｓの試料Ｂを得た。反応性溶剤Ｂ中に電圧検出素子と
ＭＯＳ−ＦＥＴを有する電子回路を浸せきし、メタルハ
ライドランプにより８０ｃａｌ／ｍ2 程度を１分以上照
射し、硬化させ、樹脂被覆した電子回路を得た。この電
子回路を非水電池の電解液であるプロピレンカーボネー
トと炭酸ジエチルの１：１混合溶剤にＬｉＰＦ6 を１Ｍ
濃度に溶解させた液に２４時間浸漬した。２４時間後取
り出し被膜の膨潤度の測定と電圧検出素子とＭＯＳ−Ｆ
ＥＴの作動テストを行った。結果をまとめて表２−１に
示す。Example 2 Five kinds of photoreactive monomers, that is, 14 parts of trimethylolpropane-triacrylate (number of chain atoms: 7), 42 parts of dimethylol-tricyclodecane-diacrylate (number of chain atoms: 11), neo Pentyl glycol (21 or more chain atoms) 23
Parts, TDI / PTMG polyurethane-diacrylate (21 or more chain atoms) 8.7 parts, polyethylene glycol-diacrylate (21 or more chain atoms)
2.6 parts of a reaction initiator P-dimethyl-amino-acetophenone 3.2 parts, benzophenone 4.8 parts, 1-hydroxycyclohexyl phenyl ketone 1.6 parts, methyl phenylglyoxylate 0.3 part and a polymerization inhibitor A BH
T was added, and a small amount of toluene was added as appropriate to obtain a viscosity of 81c.
A sample B of ps was obtained. An electronic circuit having a voltage detecting element and a MOS-FET was immersed in the reactive solvent B, irradiated with a metal halide lamp at about 80 cal / m 2 for 1 minute or more, and cured to obtain a resin-coated electronic circuit. This electronic circuit was prepared by mixing 1 M of LiPF 6 in a 1: 1 mixed solvent of propylene carbonate and diethyl carbonate, which are electrolytes of a non-aqueous battery.
It was immersed for 24 hours in the solution dissolved in the concentration. After 24 hours, measurement of the degree of swelling of the removed film, voltage detection element and MOS-F
An ET operation test was performed. The results are shown in Table 2-1.
【００１７】（実施例３〜４８）光反応性のモノマーを
表１−１〜２記載の組成に変えた以外は、実施例１と同
様の操作と評価を行った。評価結果はまとめて表２−１
〜２に示す。 （比較例１〜６）光反応性のモノマーを表１−２記載の
組成に変えた以外は、実施例１と同様の操作と評価を行
った。評価結果はまとめて表２−２に示す。 （実施例４９）実施例１で得られた電子回路を円筒型の
リチウムイオン二次電池と接続し、その電子回路に電解
液を付着させた。その状態で一週間放置後、電圧及びＦ
ＥＴの作動テストを行ったところ、正常に機能した。 （比較例７）比較例１で得られた電子回路を円筒型のリ
チウムイオン二次電池と接続し、その電子回路に電解液
を付着させた。その状態で一週間放置したところ、電池
電圧が０Ｖを示しており、電圧検出及びＦＥＴの作動も
不可能であった。Examples 3 to 48 The same operations and evaluations as in Example 1 were performed except that the photoreactive monomer was changed to the composition shown in Tables 1-1 and 1-2. The evaluation results are summarized in Table 2-1.
~ 2. (Comparative Examples 1 to 6) The same operation and evaluation as in Example 1 were performed, except that the photoreactive monomer was changed to the composition shown in Table 1-2. The evaluation results are shown in Table 2-2. (Example 49) The electronic circuit obtained in Example 1 was connected to a cylindrical lithium ion secondary battery, and an electrolytic solution was attached to the electronic circuit. After leaving for one week in that state, the voltage and F
When the ET operation test was performed, it worked properly. Comparative Example 7 The electronic circuit obtained in Comparative Example 1 was connected to a cylindrical lithium ion secondary battery, and an electrolytic solution was attached to the electronic circuit. When left for one week in that state, the battery voltage showed 0 V, and voltage detection and FET operation were impossible.
【００１８】[0018]
【表１−１】 [Table 1-1]
【００１９】[0019]
【表１−２】 [Table 1-2]
【００２０】[0020]
【表２−１】 [Table 2-1]
【００２１】[0021]
【表２−２】 [Table 2-2]
【００２２】[0022]
【発明の効果】本発明の光硬化性組成物の硬化皮膜によ
り電子回路を被覆することにより電解液等の付着が起こ
った場合においても電子回路の異常を発生せず、信頼性
が著しく向上すると共に電池と接続して用いる場合に電
池を安全に用いることが可能となる。The electronic circuit is covered with the cured film of the photocurable composition of the present invention, so that even if an electrolytic solution or the like adheres, no abnormality occurs in the electronic circuit and the reliability is remarkably improved. In addition, when used in connection with a battery, the battery can be used safely.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01L 23/28 - 23/31 H05K 3/28 H01M 10/36 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H01L 23/28-23/31 H05K 3/28 H01M 10/36
Claims (1)
れた、チェーン原子数が２以上２０以下である多官能性
モノマー及び／又はマクロマーを５重量％以上含む光硬
化性組成物の硬化された皮膜により被覆されたことを特
徴とする電子回路。1. A photocurable composition to which a non-aqueous lithium ion secondary battery is connected and which contains 5% by weight or more of a polyfunctional monomer and / or macromer having 2 to 20 chain atoms is cured. An electronic circuit characterized by being coated with a film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36227797A JP3187005B2 (en) | 1997-12-12 | 1997-12-12 | Coated electronic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36227797A JP3187005B2 (en) | 1997-12-12 | 1997-12-12 | Coated electronic circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11176996A JPH11176996A (en) | 1999-07-02 |
| JP3187005B2 true JP3187005B2 (en) | 2001-07-11 |
Family
ID=18476445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36227797A Expired - Fee Related JP3187005B2 (en) | 1997-12-12 | 1997-12-12 | Coated electronic circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3187005B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4144771A1 (en) * | 2021-09-07 | 2023-03-08 | ThreeBond Co., Ltd. | Photocurable coating agent |
-
1997
- 1997-12-12 JP JP36227797A patent/JP3187005B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11176996A (en) | 1999-07-02 |
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