JPS63318796A - Manufacture of circuit board - Google Patents

Manufacture of circuit board

Info

Publication number
JPS63318796A
JPS63318796A JP15511487A JP15511487A JPS63318796A JP S63318796 A JPS63318796 A JP S63318796A JP 15511487 A JP15511487 A JP 15511487A JP 15511487 A JP15511487 A JP 15511487A JP S63318796 A JPS63318796 A JP S63318796A
Authority
JP
Japan
Prior art keywords
circuit
circuit pattern
film
adhesives
adhered
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
JP15511487A
Other languages
Japanese (ja)
Inventor
Tadatoshi Ogura
小倉 忠利
Koji Okawa
光司 大川
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.)
Mitsubishi Cable Industries Ltd
Original Assignee
Mitsubishi Cable Industries 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 Mitsubishi Cable Industries Ltd filed Critical Mitsubishi Cable Industries Ltd
Priority to JP15511487A priority Critical patent/JPS63318796A/en
Publication of JPS63318796A publication Critical patent/JPS63318796A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/10Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
    • H05K3/102Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by bonding of conductive powder, i.e. metallic powder

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing Of Printed Wiring (AREA)

Abstract

PURPOSE:To eliminate the loss of conductive foil such as silver foil and to dispense with the discharge liquid treatment by a method wherein a circuit pattern is formed on an insulation sheet with adhesives, and, after conductive powder is adhered on it, the conductor circuit is formed by heating. CONSTITUTION:A circuit pattern is formed on an insulation sheet, and, after conductive powder is adhered on it, the conductor circuit is formed by heating. For example, a circuit pattern is drawn on a polymide film with thickness of 25mum with adhesives made by modifying epoxy resin with rubber and phenor resin. After it is dried for 5min. at the temperature of 120 deg.C, the film is coated with copper powder with average diameter of particles of 10mum-15mum and heated to 180 deg.C for 40min. to make a circuit substrate. Otherwise, after a polyimid film with thickness of 25mum is adhered on an Al plate with thickness of 0.5mm with the said adhesives, a circuit pattern is drawn with the same adhesive and dried for 5min. at 120 deg.C. Then, after it undergoes the bending machining, it is treated as stated above to manufacture a conductor circuit.

Description

【発明の詳細な説明】 〔産業上の利用分野) 本発明は回路基板の製造法に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a method of manufacturing a circuit board.

〔従来の技術〕[Conventional technology]

従来の回路基板の通常の製造法は、絶縁シート上に導電
性の箔たとえば銅箔等をラーネートし、その上に回路パ
ターンをスクリーン印刷により印刷し、次いで印刷した
回路パターンだけを残すように余分な箔部分をエンジン
グで除去して回路を形成する方法である。
The usual manufacturing method for conventional circuit boards is to laanate a conductive foil, such as copper foil, on an insulating sheet, print a circuit pattern on it by screen printing, and then remove excess material so that only the printed circuit pattern remains. In this method, a circuit is formed by removing the foil portion using engraving.

周知の通り回路1&仮としては、基板自体が柔軟性を有
しないものの他に、所謂F P C(Flexible
Prlnted C1rcuit)と呼ばれる柔軟乃至
可撓性を冑する回路基板があり、更には主にパワーモジ
エールに良く使用されるヒートシンク付きの混成集積回
路基板()i I C)も開発されている。
As is well known, the circuit 1 &
There is a flexible or flexible circuit board called Prlnted C1rcuit, and furthermore, a hybrid integrated circuit board with a heat sink that is often used mainly in power modules has also been developed.

FPCでは絶縁シートに柔軟乃至可撓性を有せしめるた
めに導電性の薄い箔、通常は銅箔をラミネートすると共
に絶縁シートとしてたとえばエポキシ樹脂含浸ガラスク
ロス積層板を使用するものである。またHICでは発生
する熱量を考慮して耐熱性のあるポリイミド等の耐熱性
樹脂シートを絶縁シートとして使用し、更に放熱のため
のAI。
In FPC, a conductive thin foil, usually a copper foil, is laminated to give the insulating sheet flexibility or flexibility, and an epoxy resin-impregnated glass cloth laminate, for example, is used as the insulating sheet. In addition, in consideration of the amount of heat generated in HIC, heat-resistant resin sheets such as heat-resistant polyimide are used as insulation sheets, and AI is used for heat dissipation.

Cu SP e等から成るヒートシンク層を設けている
ものである。
A heat sink layer made of Cu SP e or the like is provided.

そしていずれの回路基板でも通常は上記した製法で製造
されることが極めて多い。
All types of circuit boards are usually manufactured using the above-mentioned manufacturing method.

しかしながらこの方法に依ると次の様な難点がある。即
ち先ず第一に余分な導電性箔をエンジングで溶かして除
去するために極めて無駄が多く惹いてはコスト高となる
0次いで第二番目の難点として排液中に銅の如き重金属
を含むエッジンダ液が含まれるために、これをそのま々
放棄することは出来ず、排液処理のための余分な設備が
必要と〔発明が解決しようとする問題点〕 本発明が解決しようとする問題点は、上記従来の回路基
板の製造法に於ける上記難点を解消することであり、こ
れを換言すば、銅箔等の導電性箔の無駄を無くし、且つ
排液処理を特に必要としないこの種回路基板の新しい製
造法を開発することである。
However, this method has the following drawbacks. First of all, the extra conductive foil is removed by melting it with an engine, which is very wasteful and increases the cost.Secondly, the second problem is that the waste liquid contains heavy metals such as copper. Since it contains liquid, it cannot be completely discarded, and extra equipment is required to treat the waste liquid. [Problems to be Solved by the Invention] Problems to be Solved by the Invention The purpose of this method is to eliminate the above-mentioned difficulties in the conventional circuit board manufacturing method. In other words, this method eliminates the waste of conductive foil such as copper foil, and does not require any special drainage treatment. The objective is to develop a new manufacturing method for circuit boards.

(問題点を解決するための手段〕 この問題点は、接着剤によって前もって回路パターンを
絶縁基板上に形成し、この+hに導体粉末をその回路パ
ターン上に付着させて回路を形成することによって解決
される。
(Means for solving the problem) This problem can be solved by forming a circuit pattern in advance on an insulating substrate using adhesive, and then depositing conductive powder on the circuit pattern to form a circuit. be done.

即ち本発明は 絶縁シートに回路パターンを接着剤で形
成し、次いでその上に導電製粉末を付着させた後加熱し
工導体回路を形成することを特徴とする回路基板の製造
法にかかるものである。
That is, the present invention relates to a method for manufacturing a circuit board, which is characterized in that a circuit pattern is formed on an insulating sheet using an adhesive, and then a conductive powder is attached thereon and then heated to form a conductive circuit. be.

〔発明の作用並びに構成〕[Function and structure of the invention]

本発明に於いては、絶縁シート上に接着剤を用いて回路
パターンを先ず形成し、次いでその上に導電粉末を付着
させることにより回路を形成するので、導体の余剰部分
を除去する必要がなく、無駄無く導体材料を使用するこ
とが出来、従来の如き導電箔の無駄を無くすことが可能
となる。
In the present invention, the circuit is formed by first forming the circuit pattern on the insulating sheet using an adhesive and then adhering conductive powder thereon, so there is no need to remove the excess portion of the conductor. Therefore, the conductive material can be used without waste, and it is possible to eliminate the waste of conductive foil as in the past.

また余分な導電箔部分をエンジングで除去する必要が全
(ないので、排液処理という余分な操作や設備が不要と
なり工業上極めて有利となる。
In addition, since there is no need to remove the excess conductive foil portion by enginging, there is no need for extra operations and equipment such as drainage treatment, which is extremely advantageous industrially.

加えて従来方法に於いては、回路パターンとして立体的
なものを製造する際には、回路パターンを形成後、折り
曲げ加工等を施していたが、この従来方法では折り曲げ
加工等を施すと形成された導電回路を剥離するという難
点があったが本発明法に依るとこの難点も解消すること
が出来る。即ち予め絶縁シートを立体となした後、ある
いは立体状絶縁体に接着剤で回路パターンを形成してお
き、その上から導電性粉末をたとえば吹き付け、流動浸
漬等により付着させることが出来るので、回路形成後折
り曲げる必要がなく、導体の剥離等が生じない。
In addition, in the conventional method, when manufacturing a three-dimensional circuit pattern, the circuit pattern was formed and then subjected to a bending process. However, this problem can be overcome by the method of the present invention. In other words, after forming an insulating sheet into a three-dimensional shape in advance, or by forming a circuit pattern on a three-dimensional insulator with adhesive, conductive powder can be applied onto it by spraying, fluid dipping, etc., so that the circuit pattern can be formed. There is no need to bend the conductor after formation, and peeling of the conductor does not occur.

本発明に於いて使用される絶縁シートとしては従来から
この種分野に於いて使用されて来たものがいずれも使用
出来、たとえば好ましい具体例としてポリエステルフィ
ルム、ポリイミドフィルム等、誘電率が小さく高周波回
路に好適なポリエーテルスルホンフィルム、ポリエーテ
ルケトンフィルム、ポリエーテルイミドフィルム等、更
には各種セラミック板、エポキシ含浸ガラスクロス積層
板等を例示出来る。これ等絶縁シートは得られる回路基
板の使用目的に合わせて適宜に選択して使用され、たと
えばFPC用としては、エポキシ含浸ガラスクロス積層
板、ポリイミドフィルム等をまたHIC用としては、耐
熱性の大きいポリイミド等を使用すれば良い、また必要
に応じこれ等フィルムに他の材料たとえばA 1 s 
F e s Cu等を裏打ちして使用しても良い、これ
等裏打ち材を使用したものは特にHICとして好適であ
る。
As the insulating sheet used in the present invention, any insulating sheet that has been conventionally used in this type of field can be used. For example, preferred specific examples include polyester film, polyimide film, etc., which have a low dielectric constant and are used in high frequency circuits. Suitable examples include polyether sulfone film, polyether ketone film, polyetherimide film, etc., as well as various ceramic plates, epoxy-impregnated glass cloth laminates, etc. These insulating sheets are appropriately selected and used depending on the purpose of use of the obtained circuit board. For example, for FPC, epoxy-impregnated glass cloth laminates, polyimide films, etc. are used, and for HIC, materials with high heat resistance are used. Polyimide etc. may be used, and if necessary, other materials such as A 1 s may be used for these films.
It may be used with a backing such as F e S Cu, and those using such a backing material are particularly suitable as HIC.

これ等絶縁シート上に接着剤でもって回路パターンを形
成するが、この際使用される接着剤としては各種の接着
剤が使用出来るが特にエポキシ系接着剤またはエポキシ
樹脂をゴム、フェノール樹脂等で変性した接着剤が好ま
しく、その具体例としてrAH−333J及びrAH−
366J  (いずれも三井鉱油化学社製)を例示出来
る。接着剤を用いて回路パターンを形成する手段は同等
限定されず、回路パターンが形成出来る手段であればど
の様な手段でも良く、また使用する接着剤の量として充
分に絶縁シート上に導体粉末が付着するに充分な量で良
い。
A circuit pattern is formed on these insulating sheets with an adhesive. Various adhesives can be used at this time, but in particular, epoxy adhesives or epoxy resins modified with rubber, phenolic resin, etc. Preferred adhesives include rAH-333J and rAH-
366J (both manufactured by Mitsui Mining and Oil Chemicals) can be exemplified. The means for forming a circuit pattern using an adhesive is not equally limited; any means that can form a circuit pattern may be used, and the amount of adhesive used is such that the conductor powder is sufficiently coated on the insulating sheet. Just enough amount to stick.

本発明に於いては、次いでこの上に導体粉末を付着させ
るが、この際の手段も特に限定されない。
In the present invention, conductor powder is then deposited thereon, but the means for doing so is not particularly limited.

但し立体絶縁体の場合には、上記した通り吹き付けや流
動浸漬法に依るのが好ましい、導体粉末としては、導電
性のある粉末が広く使用され、たとえばCu、AI、A
u粉の1種または2種以上の混合粉末を代表例として挙
げることが出来る。この際の粉末の粒度は通常1μ−〜
30μm程度であるが、これよりも微粒となっていても
良い。
However, in the case of three-dimensional insulators, it is preferable to use the spraying or fluidized dipping method as described above.As the conductor powder, conductive powders are widely used, such as Cu, AI, A
A typical example is a mixed powder of one or more types of U powder. The particle size of the powder at this time is usually 1 μ-~
Although the particle size is approximately 30 μm, it may be finer than this.

かくして回路が一応形成された後、これを加熱して充分
に一体化させて電気回路を形成することが出来る。この
際の加熱は接着剤が充分に硬化するに必要な温度で良い
Once the circuit has been formed in this way, it can be heated to fully integrate it to form an electrical circuit. The heating at this time may be at a temperature necessary to sufficiently cure the adhesive.

〔実施例〕〔Example〕

以下に実施例を挙げて本発明をより具体的に説明する。 EXAMPLES The present invention will be described in more detail with reference to Examples below.

実施例1 25μmの厚みのポリイミドフィルム上に「AH−33
34を用いて回路パターンを描き、120℃で5分間乾
燥後、流動浸漬法により平均粒径lOμ■〜15μ■の
銅粉を均一に付着させ、180℃で40分加熱して回路
基板を製造した。
Example 1 “AH-33
After drying at 120℃ for 5 minutes, copper powder with an average particle size of 10μ■ to 15μ■ was applied uniformly using the fluidized dipping method, and the circuit board was manufactured by heating at 180℃ for 40 minutes. did.

実施例2 0.5鶴の厚みのAI板にrAH−333Jを用いて2
5μmの厚さのポリイミドフィルムを貼り合わせた後、
同じ接着剤を用いて回路パターンを描き、120℃で5
分間乾燥した0次いで曲げ加工を施した後、実施例1と
同様に処理して導体回路を製造した。
Example 2 Using rAH-333J on an AI plate with a thickness of 0.5
After laminating a 5 μm thick polyimide film,
Draw a circuit pattern using the same adhesive and heat it at 120℃ for 5 minutes.
After drying for a minute and then bending, the same process as in Example 1 was carried out to produce a conductor circuit.

〔発明の効果〕〔Effect of the invention〕

本発明法に依れば、極めて容易に節単にしがち排液処理
も不要で導体の無駄なく、導体回路を製造することが出
来る。このため極めて産業上の利益は大きい。
According to the method of the present invention, a conductor circuit can be manufactured very easily and economically, without requiring drainage treatment and without wasting conductors. Therefore, the industrial benefits are extremely large.

(以上)(that's all)

Claims (1)

【特許請求の範囲】[Claims] (1)絶縁シートに回路パターンを接着剤で形成し、次
いでその上に導電製粉末を付着させた後加熱して導体回
路を形成することを特徴とする回路基板の製造法。
(1) A method for manufacturing a circuit board, which comprises forming a circuit pattern on an insulating sheet with an adhesive, then adhering a conductive powder thereon, and then heating it to form a conductor circuit.
JP15511487A 1987-06-22 1987-06-22 Manufacture of circuit board Pending JPS63318796A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15511487A JPS63318796A (en) 1987-06-22 1987-06-22 Manufacture of circuit board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15511487A JPS63318796A (en) 1987-06-22 1987-06-22 Manufacture of circuit board

Publications (1)

Publication Number Publication Date
JPS63318796A true JPS63318796A (en) 1988-12-27

Family

ID=15598892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15511487A Pending JPS63318796A (en) 1987-06-22 1987-06-22 Manufacture of circuit board

Country Status (1)

Country Link
JP (1) JPS63318796A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02180089A (en) * 1988-12-30 1990-07-12 Canon Inc Forming method for conductive circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02180089A (en) * 1988-12-30 1990-07-12 Canon Inc Forming method for conductive circuit

Similar Documents

Publication Publication Date Title
TW507510B (en) Method of manufacturing multi layered printed circuit board using adhesive film
US4555414A (en) Process for producing composite product having patterned metal layer
RU2214698C2 (en) Heat removing facility, electric system including heat removing facility, process of manufacture of heat removing facility and of electric component
EP0152634B1 (en) Method for manufacture of printed wiring board
US7259333B2 (en) Composite laminate circuit structure
JPS63199497A (en) Multilayer printed interconnection board
US5779836A (en) Method for making a printed wiring board
JPS63318796A (en) Manufacture of circuit board
NL7906603A (en) METHOD FOR MANUFACTURING A MULTIPLE LAYERING A CARDBOARD
JPS58153390A (en) Substrate material for printed circuit and method of producing same
JPH0199289A (en) Wiring board and manufacture thereof
JPH10284814A (en) Circuit pattern and its formation
JPH08125294A (en) Metal base board and manufacture thereof
JPS5921095A (en) Method of producing multilayer printed circuit board
JPS62189796A (en) Manufacture of multilayer printed wiring board
JP2002290036A (en) Method of manufacturing wiring board
JPH1034649A (en) Manufacture of prepreg in circuit board
JPS62122295A (en) Highly conductive electric circuit and manufacture of the same
JPS641955B2 (en)
JP2002353032A (en) Multilayer build-up printed board and its producing method
JP2003158371A (en) Circuit board and manufacturing method therefor
JPS62186589A (en) Manufacture of circuit board
JPH0220155B2 (en)
JPS61276292A (en) Circuit transfer body and transfer method
JPH0451079B2 (en)