JPH0747904Y2 - Composite multilayer printed wiring board - Google Patents

Composite multilayer printed wiring board

Info

Publication number
JPH0747904Y2
JPH0747904Y2 JP5636990U JP5636990U JPH0747904Y2 JP H0747904 Y2 JPH0747904 Y2 JP H0747904Y2 JP 5636990 U JP5636990 U JP 5636990U JP 5636990 U JP5636990 U JP 5636990U JP H0747904 Y2 JPH0747904 Y2 JP H0747904Y2
Authority
JP
Japan
Prior art keywords
wiring board
printed wiring
composite multilayer
multilayer printed
perforations
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 - Lifetime
Application number
JP5636990U
Other languages
Japanese (ja)
Other versions
JPH0415266U (en
Inventor
千広 山口
剛 伊東
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP5636990U priority Critical patent/JPH0747904Y2/en
Publication of JPH0415266U publication Critical patent/JPH0415266U/ja
Application granted granted Critical
Publication of JPH0747904Y2 publication Critical patent/JPH0747904Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 〈産業上の利用分野〉 本考案は、硬質プリント配線板材料とフレキシブル配線
板材料とを積層して高密度実装できるものであって、必
要に応じて折り曲げ切断して複数個に分割するためのミ
シン目を備えた複合多層プリント配線基板に関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention is capable of high-density mounting by stacking a hard printed wiring board material and a flexible wiring board material. The present invention relates to a composite multilayer printed wiring board having perforations for dividing into a plurality of pieces.

〈従来の技術〉 斯かる複合多層プリント配線基板は、一般に第10図に示
すような製造工程を経て製作される。即ち、同図(a)
に示すように、一対の硬質プリント配線板材料(以下、
PWB材料という)1,2とフレキシブル配線板材料(以下、
FPC材料という)3とを用い、両PWB材料1,2の間にFPC材
料3を挟み込んで互いに貼り合わして構成される。各PW
B材料1,2は、一般にガラスエポキシが用いられる基材1
a,2aの両面にそれぞれ銅からなる導体層1b,1c,2b,2cが
形成されてなり、FPC材料3も、一般にポリイミドフイ
ルムが用いられる基材3aの両面にそれぞれ銅からなる導
体層3b,3cが形成されてなる。
<Prior Art> Such a composite multilayer printed wiring board is generally manufactured through a manufacturing process as shown in FIG. That is, FIG.
As shown in, a pair of rigid printed wiring board materials (hereinafter,
PWB materials 1, 2 and flexible wiring board materials (hereinafter,
FPC material 3), and the FPC material 3 is sandwiched between both PWB materials 1 and 2 and bonded to each other. Each PW
B materials 1 and 2 are base materials 1 in which glass epoxy is generally used.
Conductor layers 1b, 1c, 2b, 2c made of copper are formed on both sides of a, 2a, respectively, and the FPC material 3 is also made of copper. 3c is formed.

先ず、同図(b)に示すように、各PWB材料1,2およびFP
C材料3の各々の両側の全表面に、パターンニング用の
エッチングレジスト4を形成する。このエッチングレジ
スト4の形成法には、スクリーン印刷等により形成する
印刷法と、液状フォトレジストまたはドライフイルムと
パターンフイルム等のフォトツールとを使用して露光,
現像を行なって形成する写真法とがあるが、ここでは写
真法のドライフイルムを使用する場合について以下に説
明する。
First, as shown in FIG. 2B, each PWB material 1, 2 and FP
An etching resist 4 for patterning is formed on the entire surface of each side of the C material 3. The etching resist 4 is formed by exposing using a printing method such as screen printing and a phototool such as a liquid photoresist or dry film and a pattern film.
There is a photographic method of forming by developing, and here, the case of using a dry film of the photographic method will be described below.

即ち、FPC材料3の両面の導体層3b,3cと各PWB材料1,2の
それぞれの内側の導体層1c,2bとの各々の全面に形成さ
れたエッチングレジスト4に対し写真法により露光,現
像することにより、同図(c)に示すようにエッチング
レジスト4の必要な部分のみを残し、この残存したエッ
チングレジスト4をマスクとし、且つ塩化第2鉄や塩化
第2銅の溶液を用いて、同図(d)に示すように各導体
層3b,3c,1c,2bを選択的にエッチングし、導体パターン
を形成する。このように導体層を選択的に除去して導体
ハパターンを得るプリント配線板の製造法をサプトラッ
クティブ法と称され、一般的によく知られている。
That is, the etching resist 4 formed on the entire surfaces of the conductor layers 3b and 3c on both sides of the FPC material 3 and the conductor layers 1c and 2b on the inside of the PWB materials 1 and 2 are exposed and developed by a photographic method. By doing so, only the necessary portion of the etching resist 4 is left as shown in FIG. 3C, the remaining etching resist 4 is used as a mask, and a solution of ferric chloride or cupric chloride is used. As shown in FIG. 3D, each conductor layer 3b, 3c, 1c, 2b is selectively etched to form a conductor pattern. A method of manufacturing a printed wiring board in which a conductor layer is selectively removed to obtain a conductor pattern is called a "supplactive method" and is generally well known.

その後に、アルカリ性の溶液または有機溶剤等を用いて
同図(e)に示すように全てのエッチングレジスト4を
剥離除去する。更に、同図(f)に示すように、FPC材
料3の両面の基材3aおよび導体層3b,3cに、一般にポリ
イミドフイルムが用いられるフイルムカバーレイ5をプ
レスして被覆する。尚、このフイルムカバーレイ5は個
所によっては形成しないことがある。
After that, all the etching resists 4 are peeled and removed using an alkaline solution or an organic solvent as shown in FIG. Further, as shown in FIG. 3F, the base material 3a and the conductor layers 3b and 3c on both sides of the FPC material 3 are pressed and covered with a film coverlay 5 which is generally made of a polyimide film. The film cover lay 5 may not be formed depending on the location.

続いて、同図(g)に示すように各PWB材料1,2とFPC材
料3との各間に接着シート6を介在させ、この状態でプ
レス装置により熱と圧力を加えて積層プレスすることに
より、同図(h)に示すように複合多層配線体となる。
但し、この状態では各導体槽1b、1c、2b、2c,3b,3cの各
間の電気的接続および両側の導体層1b,2cの導体パター
ンの形成は未だ成されていないので、以後は、一般的な
両面プリント配線基板と同様の加工を施される。
Then, as shown in FIG. 3G, an adhesive sheet 6 is interposed between each of the PWB materials 1 and 2 and the FPC material 3, and heat and pressure are applied by a pressing device in this state to perform laminated pressing. As a result, a composite multilayer wiring body is obtained as shown in FIG.
However, in this state, since the electrical connection between each of the conductor tanks 1b, 1c, 2b, 2c, 3b, 3c and the formation of the conductor patterns of the conductor layers 1b, 2c on both sides have not yet been made, the following steps are performed. Processing similar to that of a general double-sided printed wiring board is performed.

即ち、前述の複合多層配線体にNCドリリングマシンによ
り同図(i)に示すようにスルーホール7が穿設され、
このスルーホール7内部並びに両側表面にめっき加工に
より導体8が被着される。更に、前述のサブトラクティ
ブ法による選択的なエッチングを行なうために、同図
(k)に示すように両側の全表面に、パターンニング用
のエッチングレジスト4を形成し、このエッチングレジ
スト4に対し写真法により露光,現像することにより、
同図(1)に示すようにエッチングレジスト4の必要な
部分のみを残し、この残存したエッチングレジスト4を
マスクとし、且つ塩化第2鉄や塩化第2銅の溶液を用い
て、同図(m)に示すように導体8および両側の導体層
1b,2cを選択的にエッチングして導体パターンを形成
し、その後に同図(n)に示すように両面にソルダーレ
ジスト9を形成する。
That is, a through hole 7 is formed in the composite multilayer wiring body by an NC drilling machine as shown in FIG.
A conductor 8 is attached to the inside of the through hole 7 and both side surfaces by plating. Further, in order to perform the selective etching by the subtractive method described above, an etching resist 4 for patterning is formed on all surfaces on both sides as shown in FIG. By exposing and developing by the method,
As shown in FIG. 1A, only a necessary portion of the etching resist 4 is left, the remaining etching resist 4 is used as a mask, and a solution of ferric chloride or cupric chloride is used to ) Conductor 8 and conductor layers on both sides as shown in FIG.
1b and 2c are selectively etched to form a conductor pattern, and thereafter, a solder resist 9 is formed on both surfaces as shown in FIG.

そして、最後に金型によるパンチング加工またはルータ
加工等の最終的な外形加工が行なわれるのであるが、こ
の外形加工時に、第11図(a)に示すようなミシン目10
が同時に形成される。このミシン目10は、完成品として
の複合多層プリント配線基板Pを同図(b)に示すよう
に折り曲げ切断し、同図(c)に示すように2個のプリ
ント配線基板P1,P2に分割するためのものである。
Finally, final outer shape processing such as punching with a die or router processing is performed. At the time of this outer shape processing, perforations 10 as shown in FIG.
Are formed at the same time. The perforation 10 is obtained by bending the composite multi-layer printed wiring board P as a finished product as shown in FIG. 2B and dividing it into two printed wiring boards P1 and P2 as shown in FIG. It is for doing.

〈考案が解決しようとする課題〉 第7図は従来の複合多層プリント配線基板のミシン目10
部分の平面図を示し、第8図は第7図のA−A線断面図
で、第9図は同B−B線断面図であり、これらの図にお
いて第10図と同一のものには同一の符号を付してある。
第10図(n)との比較から明らかなように、ミシン目10
の部分には、各導体層1b、1c、2b、2c、3b、3cやソルダ
ーレジスト9が形成されないのが一般的である。
<Problems to be solved by the invention> FIG. 7 is a perforation of a conventional composite multilayer printed wiring board.
FIG. 8 shows a plan view of a portion, FIG. 8 is a sectional view taken along the line AA in FIG. 7, and FIG. 9 is a sectional view taken along the line BB in FIG. The same reference numerals are attached.
As is clear from comparison with FIG. 10 (n), perforations 10
It is general that the conductor layers 1b, 1c, 2b, 2c, 3b, 3c and the solder resist 9 are not formed in the portion.

然し乍ら、第8図に示すように、折り曲げ切断するミシ
ン目10の残りしろ部10aに対応する個所に、ポリイミド
フイルム等の屈撓性を有して割れ難い素材からなるFPC
材料3の基材3aおよびフイルムカバーレイ5が存在して
いるために、ミシン目10による切断分離を容易に行えな
い問題がある。
However, as shown in FIG. 8, an FPC made of a flexible and hard-to-crack material such as a polyimide film is formed at a portion corresponding to the remaining margin 10a of the perforation 10 to be bent and cut.
Since the base material 3a of the material 3 and the film coverlay 5 are present, there is a problem that cutting and separation by the perforations 10 cannot be easily performed.

本考案は、このような従来の問題点に鑑みなされたもの
であり、ミシン目に沿って手で簡単に折曲切断できる複
合多層プリント配線基板を提供することを技術的課題と
するものである。
The present invention has been made in view of such conventional problems, and an object thereof is to provide a composite multilayer printed wiring board which can be easily bent and cut along the perforations by hand. .

〈課題を解決するための手段〉 本考案は、上記した課題を達成するための技術的手段と
して、複合多層プリント配線基板を次のように構成し
た。即ち、硬質プリント配線板材料とフレキシブル配線
板材料とを積層し、この両配線板の各々の導体をスルー
ホールめっきにより電気的に導通させた複合多層プリン
ト配線基板において、折り曲げ切断するためのミシン目
を分割線に沿って形成し、このミシン目の残りしろ部に
対応する部分に、前記フレキシブル配線板材料を設けな
いことを特徴として構成されている。
<Means for Solving the Problems> In the present invention, as a technical means for achieving the above-mentioned objects, a composite multilayer printed wiring board is configured as follows. That is, in a composite multilayer printed wiring board in which a hard printed wiring board material and a flexible wiring board material are laminated and the respective conductors of both wiring boards are electrically connected by through hole plating, perforations for cutting by bending are provided. Is formed along the dividing line, and the flexible wiring board material is not provided in the portion corresponding to the remaining margin portion of the perforation.

〈作用〉 ミシン目の残りしろ部に対応する部分に、屈撓性を有し
て割れ難いフレキシブル配線板材料が存在しないので、
この残りしろ部を極めて容易に手で折り曲げて切断すこ
とができる。
<Operation> Since there is no flexible wiring board material that has flexibility and is hard to break in the portion corresponding to the remaining portion of the perforations,
This remaining margin can be bent and cut by hand very easily.

〈実施例〉 以下、本考案の好ましい一実施例について図面を参照し
ながら詳細に説明する。
<Embodiment> Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

第1図は本考案の一実施例の複合多層プリント配線基板
のミシン目10部分の平面図を示し、第2図は第1図のA
−A線断面図で、第3図は同B−B線断面図であり、こ
れらの図において第7図乃至第9図と同一若しくは同等
のものには同一の符号を付してその説明を省略する。そ
して、従来基板と相違する点は、第2図に示すようにミ
シン目10の残りしろ部10aに対応する部分にのみFPC材料
3の主にポリイミドフイルムが用いられる基材3aおよび
フイルムカバーレイ5を除外した構成のみである。
FIG. 1 is a plan view of a perforated portion 10 of a composite multi-layer printed wiring board according to an embodiment of the present invention, and FIG. 2 is A of FIG.
3 is a sectional view taken along the line BB in FIG. 3, and the same or equivalent parts as those in FIG. 7 to FIG. Omit it. The difference from the conventional substrate is that, as shown in FIG. 2, the base material 3a and the film cover layer 5 in which the polyimide film of the FPC material 3 is mainly used only in the portion corresponding to the remaining margin portion 10a of the perforation 10 are used. Is the only configuration that excludes.

従って、ミシン目10の残りしろ部10aに対応する部分
は、主にガラスエポキシが用いられるPWB材料1,2の基材
1a,2aと接着シート6のみにより構成されているので、
手で容易に折曲切断することができる。
Therefore, the portion corresponding to the remaining margin portion 10a of the perforation 10 is a base material of PWB materials 1 and 2 in which glass epoxy is mainly used.
Since it is composed only of 1a and 2a and the adhesive sheet 6,
Can be easily bent and cut by hand.

次に前記実施例基板の形成手段について第4図乃至第6
図を参照しながら説明する。これらの図における各
(a)はそれぞれミシン目10の形成部分の平面図、各
(b)は各(a)のA−A線断面図、各(c)は同B−
B線断面図である。先ず、第10図(a)〜同図(f)と
同様の工程を経て第4図に示すようにFPC材料3の基材3
aの両面をフイルムカバーレイ5で被覆する。
Next, the means for forming the embodiment substrate will be described with reference to FIGS.
Description will be given with reference to the drawings. In each of these figures, each (a) is a plan view of a portion where perforations 10 are formed, each (b) is a cross-sectional view taken along the line AA of each (a), and each (c) is the same B-.
It is a B line sectional view. First, as shown in FIG. 4, the base material 3 of the FPC material 3 is subjected to the same steps as in FIGS. 10 (a) to 10 (f).
Cover both sides of a with film coverlay 5.

続いて、第5図に示すように、第4図の状態におけるミ
シン目10を形成した時点で残りしろ部10aに対応する個
所を、透孔11を形成することによって予め除外する。こ
の透孔11の形成は、金型によるパンチング、ルーター加
工、NCドリリングマシンによる穿孔あるいはトムソン加
工等の手段により容易に行える。
Subsequently, as shown in FIG. 5, a portion corresponding to the margin portion 10a remaining when the perforation 10 is formed in the state of FIG. 4 is excluded in advance by forming a through hole 11. The through holes 11 can be easily formed by means such as punching with a die, router processing, punching with an NC drilling machine, or Thomson processing.

次に、第10図(g)〜同図(n)と同様の工程を経るこ
とにより第6図に示すような形状となる。この後に、金
型加工またはルーター加工等による外形加工が行なわれ
る時に、同時に第6図(a)に1点鎖線で示す個所にミ
シン目10が形成されることにより、第1図のような構造
となる。
Next, the shape as shown in FIG. 6 is obtained by going through the same steps as in FIGS. 10 (g) to 10 (n). After that, when outer shape processing such as die processing or router processing is performed, at the same time, perforations 10 are formed at the portions shown by the one-dot chain line in FIG. 6 (a), so that the structure shown in FIG. Becomes

〈考案の効果〉 以上のように本考案の複合多層プリント配線基板による
と、ミシン目の残りしろ部に対応する個所に、屈撓性を
有して割れ難いフレキシブル配線板材料が存在しないの
で、手で極めて容易に折曲切断することができる顕著な
実用的効果を得ることができる。
<Effects of the Invention> As described above, according to the composite multilayer printed wiring board of the present invention, there is no flexible wiring board material that is flexible and hard to break at the portion corresponding to the remaining portion of the perforations. It is possible to obtain a remarkable practical effect that can be bent and cut very easily by hand.

【図面の簡単な説明】[Brief description of drawings]

第1図は本考案の一実施例の要部の平面図、 第2図は第1図のA−A線断面図、 第3図は第1図のB−B線断面図、 第4図乃至第6図は第1図の要部の製造工程図、 第7図は従来基板の一部の平面図、 第8図は第7図のA−A線断面図、 第9図は第7図のB−B線断面図、 第10図は第7図の製造工程図、 第11図はミシン目により折曲切断する状態を示す説明図
である。 1,2……硬質プリント配線板材料 3……フレキシブル配線板材料 10……ミシン目 10a……ミシン目の残りしろ部 11……フレキシブル配線板材料の除外部
1 is a plan view of an essential part of an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 is a sectional view taken along line BB of FIG. 1, and FIG. 6 to FIG. 6. FIG. 6 is a manufacturing process diagram of a main part of FIG. 1, FIG. 7 is a plan view of a part of a conventional substrate, FIG. 8 is a sectional view taken along line AA of FIG. 7, and FIG. FIG. 10 is a sectional view taken along the line BB of FIG. 10, FIG. 10 is a manufacturing process diagram of FIG. 7, and FIG. 1,2 …… Rigid printed wiring board material 3 …… Flexible wiring board material 10 …… Perforations 10a …… Remaining area of perforations 11 …… Excludes flexible wiring board material

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】硬質プリント配線板材料とフレキシブル配
線板材料とを積層し、この両配線板の各々の導体をスル
ーホールめっきにより電気的に導通させた複合多層プリ
ント配線基板において、折り曲げ切断するためのミシン
目を分割線に沿って形成し、このミシン目の残りしろ部
に対応する部分に、前記フレキシブル配線板材料を設け
ないことを特徴とする複合多層プリント配線基板。
1. A composite multilayer printed wiring board in which a hard printed wiring board material and a flexible printed wiring board material are laminated, and respective conductors of the both wiring boards are electrically connected by through-hole plating, for bending and cutting. Is formed along a dividing line, and the flexible wiring board material is not provided in a portion corresponding to the remaining margin of the perforation.
JP5636990U 1990-05-29 1990-05-29 Composite multilayer printed wiring board Expired - Lifetime JPH0747904Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5636990U JPH0747904Y2 (en) 1990-05-29 1990-05-29 Composite multilayer printed wiring board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5636990U JPH0747904Y2 (en) 1990-05-29 1990-05-29 Composite multilayer printed wiring board

Publications (2)

Publication Number Publication Date
JPH0415266U JPH0415266U (en) 1992-02-06
JPH0747904Y2 true JPH0747904Y2 (en) 1995-11-01

Family

ID=31580135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5636990U Expired - Lifetime JPH0747904Y2 (en) 1990-05-29 1990-05-29 Composite multilayer printed wiring board

Country Status (1)

Country Link
JP (1) JPH0747904Y2 (en)

Also Published As

Publication number Publication date
JPH0415266U (en) 1992-02-06

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