JPH02180088A - Printed board and confirming method for v-cut groove thereof - Google Patents
Printed board and confirming method for v-cut groove thereofInfo
- Publication number
- JPH02180088A JPH02180088A JP33392488A JP33392488A JPH02180088A JP H02180088 A JPH02180088 A JP H02180088A JP 33392488 A JP33392488 A JP 33392488A JP 33392488 A JP33392488 A JP 33392488A JP H02180088 A JPH02180088 A JP H02180088A
- Authority
- JP
- Japan
- Prior art keywords
- boundary line
- copper foil
- pattern
- cut groove
- electrode
- 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
- 238000000034 method Methods 0.000 title claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000011889 copper foil Substances 0.000 claims abstract description 64
- 238000012790 confirmation Methods 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 12
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0266—Marks, test patterns or identification means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0097—Processing two or more printed circuits simultaneously, e.g. made from a common substrate, or temporarily stacked circuit boards
Landscapes
- Structure Of Printed Boards (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、複数の分割すべき回路基板を有するプリン
ト基板の分割用Vカット溝の確認用パターンの改良構造
及びそのVカット溝確認方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an improved structure of a pattern for checking V-cut grooves for dividing a printed circuit board having a plurality of circuit boards to be divided, and a method for checking the V-cut grooves. be.
従来の技術
一般に、プリント基板の製造にあたっては、各製造工程
におけるハンドリング及び諸設備の占有面積あるいは稼
働効率等を考慮し、さらには、回路部品の自動挿入の効
率上の見地あるいは管理上の便宜の為等により、母材と
なる大型の基板に2以上の複数の回路基板を集合化して
分割可能に形成し、部品実装後、個々の回路基板を分割
して使用する様にしている。そのため、隣接する回路基
板の境界線上、及び回路基板と周囲の捨て基板との境界
線上にVカット溝と呼ばれるV字状の切込溝を溝加工し
、このVカット溝の部分で回路基板を切断・分割する工
法が採用されている。Conventional technology In general, when manufacturing printed circuit boards, consideration is given to handling in each manufacturing process, the area occupied by various equipment, operating efficiency, etc., and further consideration is given to the efficiency of automatic insertion of circuit components or the convenience of management. For this reason, two or more circuit boards are assembled on a large substrate as a base material so as to be divisible, and after mounting the components, the individual circuit boards are divided and used. Therefore, V-shaped cut grooves called V-cut grooves are machined on the boundaries between adjacent circuit boards and on the boundaries between circuit boards and surrounding sacrificial boards, and the circuit boards are cut in the V-cut grooves. A cutting and dividing method is used.
このようなVカット溝の加工が施されているか否かの確
認は、従来目視による検査によって行われていた。その
ため、■カット溝の加工が施されていないものを往々に
して見逃してしまう問題が生じていた。このように本来
あるべきV溝加工が無しの状態を見逃してしまうと、回
路基板の分割が行えなくなることは勿論、半田付は工程
を終えて部品を実装した後に回路基板を分割する場合に
は、■カット加工を当該部分に再度施す必要があり、そ
の際、実装部品を損傷させたり、回路基板を破損させた
りする等の問題が発生する。したがって、現状では、第
5図(イ)、(ロ)で示すようなVカット溝加工の有無
を確認するための手段かプリント基板に施されている。Confirmation of whether or not such V-cut grooves have been processed has conventionally been carried out by visual inspection. As a result, there has been a problem in that items without cut grooves are often overlooked. If you overlook the fact that there is no V-groove processing as it should be, it goes without saying that you will not be able to divide the circuit board. , (2) It is necessary to perform the cutting process again on the relevant part, and at that time, problems such as damage to the mounted components and damage to the circuit board occur. Therefore, at present, printed circuit boards are provided with means for confirming the presence or absence of V-cut grooves as shown in FIGS. 5(a) and 5(b).
第5図(イ)で符号1は母材となる基板で、分割すべき
回路基板2.3が隣接して切り取り可能に形成されてい
る。その周囲には捨て基板4・・・が形成されている。In FIG. 5(A), reference numeral 1 denotes a base material substrate, and circuit boards 2.3 to be divided are formed adjacent to each other so that they can be cut out. A sacrificial substrate 4 is formed around it.
回路基板2.3の境界線Ll上と、回路基板2.3と捨
て基板4・・・との境界線L2上とにVカット溝が溝加
工される。2つの回路基板2.3のVカット溝形成位置
に境界線Ll 、L2を横切る銅箔パターン5が一方の
回路基板から他方の回路基板又は捨て基板に架橋状に延
長して形成されている。パターン5の両端、すなわち、
回路基板2側の一端と回路基板3側の他端とにレジスト
被膜の除去により銅箔を露出させたパターンのランドよ
り成る電極2as3aが形成されている。電極2a13
aの中央には、端子挿入孔2b、3bが基板表裏に貫通
して夫々形成されている。また、回路基板から捨て基板
4内へ延長されたパターン5の端部には挿入孔4bを有
する電極4aが形成されている。V-cut grooves are formed on the boundary line Ll of the circuit board 2.3 and on the boundary line L2 between the circuit board 2.3 and the sacrificial board 4 . A copper foil pattern 5 is formed at the V-cut groove forming position of the two circuit boards 2.3 so as to extend across the boundary lines Ll and L2 in a bridge-like manner from one circuit board to the other circuit board or a sacrificial board. Both ends of pattern 5, i.e.
Electrodes 2as3a are formed at one end on the circuit board 2 side and the other end on the circuit board 3 side, each consisting of a land pattern in which copper foil is exposed by removing the resist film. Electrode 2a13
Terminal insertion holes 2b and 3b are formed in the center of a, passing through the front and back sides of the board, respectively. Furthermore, an electrode 4a having an insertion hole 4b is formed at the end of the pattern 5 extending from the circuit board into the sacrificial board 4.
■カット溝加工後に、その加工の有無を確認するにあた
っては、計測器の接触子を基板2.3の夫々の電極2
aN 3 aに接触させ、その間の導通の有無を検査す
る。この検査工程で第5図(ロ)のように境界線L1又
はL2上にVカット溝6が加工されていると、電極2a
13a間がオープン、すなわち、導通無しの状態となり
、■カット溝の加工が施されていると確認される。■After cutting grooves are processed, in order to check whether or not they have been processed, connect the contacts of the measuring instrument to each electrode 2 of the substrate 2.3.
aN 3 a and check for continuity between them. In this inspection process, if the V-cut groove 6 is machined on the boundary line L1 or L2 as shown in FIG. 5(b), the electrode 2a
13a is open, that is, there is no conduction, and it is confirmed that the cut groove has been processed.
一方、第5図(ハ)のように境界線L1又はL2」二に
Vカット溝が加工されていない場合は、電極2 a %
3 a間が導通状態となり、■カット溝の加工が施さ
れていないものと確認される。このようにしてVカット
溝の加工の有無が判別・確認される。On the other hand, if the V-cut groove is not formed on the boundary line L1 or L2 as shown in FIG. 5(c), the electrode 2a%
3 A becomes conductive, and it is confirmed that the cut groove has not been processed. In this way, it is determined and confirmed whether or not the V-cut groove has been processed.
発明が解決しようとする課題
上述した従来の溝加工の有無を確認する方法は、溝加工
が施されているか否かの判別は行えるものの、境界線上
の正規の位置に正しく溝加工されているか否かの判別は
行えなかった。例えば、境界線上からとちらか一方の電
極側へ位置ズレして溝加工されていたとしても、電極間
はオーブンとなるため、溝加工有りと確認されることに
なる。したがって、従来法では、溝加工の位置ズレ、そ
れか許容範囲に収まっているか否かについては確認不可
能であった。Problems to be Solved by the Invention Although the above-mentioned conventional method for checking the presence or absence of groove machining can determine whether or not groove machining has been performed, it is difficult to determine whether or not the groove has been machined correctly at the regular position on the boundary line. It was not possible to determine that. For example, even if the grooves are deviated from the boundary line toward one of the electrodes, the space between the electrodes becomes an oven, so it will be confirmed that the grooves have been formed. Therefore, with the conventional method, it is impossible to check whether the positional deviation of the groove machining is within the allowable range or not.
この発明の目的は、分割基板間に形成される〜rカット
溝の加工の有無のみならず、位置ズレなく境界線上に正
しく溝加工が施されているかどうかについても確実・容
易に確認できるようにすることにある。The purpose of this invention is to be able to reliably and easily confirm not only whether or not the ~r-cut grooves formed between divided substrates have been processed, but also whether the grooves have been processed correctly on the boundary line without positional deviation. It's about doing.
課題を解決するための手段
本発明は、プリント基板のVカット溝形成位置に隣接す
る分割基板の境界線を横切る2本の銅箔パターンを並設
し、夫々の銅箔パターンの両端に銅箔を露出させてパタ
ーンのランドより成る電極を形成すると共に、2つの銅
箔パターンを境界線の位置で架橋状に接続する第3の銅
箔パターンを■カット溝と略同一幅で形成して成ること
を要旨とする。Means for Solving the Problems The present invention provides two copper foil patterns that are arranged in parallel across the boundaries of divided boards adjacent to the V-cut groove forming position of a printed circuit board, and that copper foils are placed at both ends of each copper foil pattern. is exposed to form an electrode consisting of a land of the pattern, and a third copper foil pattern is formed with approximately the same width as the cut groove to connect the two copper foil patterns in a bridging manner at the position of the boundary line. The gist is that.
第3の銅箔パターンの幅は、本発明の第2の特徴による
と、■カット溝の境界線に対する位置ズレ量の許容差分
を含む大きさに設定される。そして、2つの銅箔パター
ンと第3の銅箔パターンとによって略H型のV溝加工確
認用のパターンが形成される。According to the second feature of the present invention, the width of the third copper foil pattern is set to a size that includes (1) an allowable difference in the amount of positional deviation with respect to the boundary line of the cut groove; The two copper foil patterns and the third copper foil pattern form a substantially H-shaped V-groove machining confirmation pattern.
さらに、本発明は下記構成のプリント基板で特徴付けら
れる。Furthermore, the present invention is characterized by a printed circuit board having the following configuration.
隣接する電極から延出される2本の銅箔パターンは、境
界線を挾んで対角位置にある電極の方向へ略X状に延長
され、境界線上で第3の銅箔パターンによって接続され
ているi
さらにまた、本発明は、境界線を挾む一方側回路基板に
銅箔パターンのランドを露出させて少なくとも3個の電
極を並設し、中央の電極とその一方側の電極とを夫々有
する2本の銅箔パターンを境界線を横切って他方の回路
基板に延長させ、その端部間を境界線と平行、かつ該境
界線と近接する第3のパターンで接続すると共に、中央
の電極に対して一方側の電極と反対の他方側の電極から
境界線の方向に第4の銅箔パターンを延長し、その延長
端部を境界線の近接位置で中央の電極を有するパターン
方向へ該境界線に沿って延長し、該パターンに接続させ
、第3のパターンと第4のパターンの境界線に沿う部分
とが該境界線を挾んで略平行かつ境界線と近接して位置
するようにパターン形状を形成して成るプリント基板を
要旨とする。The two copper foil patterns extending from adjacent electrodes are extended in a substantially X shape in the direction of the diagonally located electrodes across the boundary line, and are connected by a third copper foil pattern on the boundary line. i Furthermore, the present invention is characterized in that at least three electrodes are arranged in parallel by exposing a land of a copper foil pattern on one side of the circuit board sandwiching the boundary line, and each has a central electrode and an electrode on one side thereof. Two copper foil patterns are extended across the boundary line to the other circuit board, and their ends are connected by a third pattern parallel to and close to the boundary line, and connected to the center electrode. On the other hand, a fourth copper foil pattern is extended from the electrode on one side and the electrode on the opposite side in the direction of the boundary line, and the extended end is moved toward the pattern having the central electrode at a position close to the boundary line. A pattern extending along the line and connected to the pattern, such that the portions of the third pattern and the fourth pattern along the boundary line are positioned substantially parallel to and close to the boundary line, sandwiching the boundary line. The main subject is a printed circuit board formed by forming a shape.
また、本発明は下記構成の溝加工確認方法を要旨とする
。Further, the gist of the present invention is a groove machining confirmation method having the following configuration.
すなわち、本発明は、2つの銅箔パターンの夫々の両端
に設けた電極に導通検査用の接触子を当接させ、境界線
を挾む一方と他方との各相隣る電極間と、2つのパター
ンの各両端の電極間との導通の有無を検知することを特
徴としたVカット溝確認方法である。That is, in the present invention, contactors for continuity testing are brought into contact with electrodes provided at both ends of two copper foil patterns, and between adjacent electrodes in each phase on one side and the other side sandwiching the boundary line; This V-cut groove confirmation method is characterized by detecting the presence or absence of conduction between electrodes at both ends of a pattern.
この確認方法において、境界線を介した一方側と他方側
との各相隣接する電極間の導通の有無に応じてVカット
溝の境界線に対する位置ズレの有無を検出することも本
発明の方法の特徴事項として含まれる。In this confirmation method, the method of the present invention also includes detecting the presence or absence of positional deviation with respect to the boundary line of the V-cut groove according to the presence or absence of conduction between adjacent electrodes of each phase on one side and the other side via the boundary line. Included as a feature of
さらに、本発明は、下記構成のVカット溝確認方法を要
旨とする。Furthermore, the gist of the present invention is a V-cut groove confirmation method having the following configuration.
すなわち、本発明は、境界線に対して一方側の回路基板
に形成された中央の電極とその両側の一方側の電極と他
方側の電極とに導通検査用の接触子を当接させ、中央の
電極と一方側の電極間、及び中央の電極と他方側の電極
間の導通の有無を検知するVカット溝確認方法で特徴付
けられる。この場合において、中央の電極と一方側の電
極間、及び中央の電極と他方側の電極間の導通の有無を
検出することによって加工されたVカット溝の境界線に
対する位置ズレの有無を判別することも本発明方法の特
徴事項として含まれる。That is, in the present invention, a contact for continuity testing is brought into contact with a central electrode formed on a circuit board on one side with respect to the boundary line, and an electrode on one side and an electrode on the other side on both sides of the central electrode, and It is characterized by a V-cut groove confirmation method that detects the presence or absence of conduction between the electrode on one side and the electrode on the other side, and between the electrode on the center side and the electrode on the other side. In this case, by detecting the presence or absence of conduction between the center electrode and one side electrode, and between the center electrode and the other side electrode, it is determined whether there is a positional deviation with respect to the boundary line of the machined V-cut groove. This is also included as a feature of the method of the present invention.
作用
Vカット溝加工の有無の確認にあたり、2つの銅箔パタ
ーンの両端の相隣接する電極に夫々導通検査用の接触子
を当接させ、分割基板の境界線を挾む一方側と他方側の
夫々の相隣接する電極間と、2つの銅箔パターンの両端
の電極間との導通の有無が夫々測定し検査される。Function: To check the presence or absence of V-cut grooves, contact the contactors for continuity testing to the adjacent electrodes at both ends of the two copper foil patterns, and then The presence or absence of continuity between adjacent electrodes and between the electrodes at both ends of the two copper foil patterns is measured and inspected.
2つの銅箔パターンの両端の電極間が導通有りの場合は
、■カット溝が加工されていないと判別される。一方、
パターンの両端の電極間がオープン、すなわち導通無し
の場合は、■カット溝が加工されているものと判別され
る。If there is continuity between the electrodes at both ends of the two copper foil patterns, it is determined that the cut groove is not processed. on the other hand,
When the electrodes at both ends of the pattern are open, that is, there is no conduction, it is determined that (1) a cut groove has been processed.
さらに、2つの銅箔パターンの分割境界線を挾む一方側
と他方側との各相隣る電極間のうち、いずれか一方がオ
ープンで他方が導通有りの場合は、■カット溝が境界線
に対してオープンになった側の電極側に位置ズレして加
工されているものと判別される。一方、一方側と他方側
の相隣る電極間か双方共にオープンになったときは、V
カット溝が境界線上にぴたりと一致し、又はその許容公
差の範囲内で正しい位置に加工されているものと判別さ
れる。Furthermore, if one of the adjacent electrodes on one side and the other side of the dividing boundary line of two copper foil patterns is open and the other is conductive, It is determined that the machining is performed with the position shifted to the side of the electrode that is open to the other side. On the other hand, when the adjacent electrodes on one side and the other side are open, or both are open, V
It is determined that the cut groove exactly matches the boundary line or is machined at the correct position within the allowable tolerance range.
一方、本発明の1構成において、境界線を挾む一方側の
回路基板に中央の電極とその両側の一方側と他方側の電
極とが3個並設されている場合は、それぞれの電極に接
触子を当て、中央と一方側間及び中央と他方側間の導通
の有無を見たとき、中央の電極と一方側及び他方側の各
電極間が導通無しの場合は、■カット溝が加工されてい
るものと判別される。その逆の場合は溝加工無しと判別
される。On the other hand, in one configuration of the present invention, if a central electrode and three electrodes on one side and the other side on both sides of the central electrode are arranged in parallel on one side of the circuit board sandwiching the boundary line, each electrode When applying a contact and checking whether there is continuity between the center and one side and between the center and the other side, if there is no continuity between the center electrode and each electrode on one side and the other side, ■ Cut grooves have been machined. It is determined that the In the opposite case, it is determined that there is no groove processing.
そして、中央と一方側の電極間及び中央と他方側の電極
間が共に導通無しの場合は、第3のパターン及び第4の
パターンの屈曲部が共にVカット溝で切断・除去され、
溝加工有りの状態で、■カット溝が境界線上に正しく一
致して加工されているものと判別される。さらに、中央
と一方側の電極間が導通無しで、中央と他方側の電極間
が導通有りの場合、若くはその逆の場合は、溝加工有り
の状態で、■カット溝が境界線に対して一方側又は他方
側の回路基板の方向に位置ズレしているものと判別され
る。If there is no conduction between the center and the electrodes on one side and between the center and the other electrodes, the bent portions of the third pattern and the fourth pattern are both cut and removed by the V-cut groove,
In the state with groove machining, (1) it is determined that the cut groove is correctly aligned with the boundary line. Furthermore, if there is no conduction between the center and one side electrodes and there is conduction between the center and the other side electrodes, or vice versa, the cut groove is in the state with groove processing, and ■ the cut groove is against the boundary line. It is determined that the position has shifted in the direction of the circuit board on one side or the other side.
以上により、■カット溝の加工の有無の確認と、その境
界線に対する位置ズレの有無の確認とが同一の確認用パ
ターンを用いて同時に行える。As described above, (1) confirming whether the cut groove has been processed and confirming whether there is any positional deviation with respect to the boundary line can be simultaneously performed using the same confirmation pattern.
実施例
以下、この発明の実施例について図面に従って説明する
。EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.
第1図は本発明に係るプリント基板の部分平面図で、第
2図はその主要部を示している。FIG. 1 is a partial plan view of a printed circuit board according to the present invention, and FIG. 2 shows its main parts.
基板母材10には複数(図示例では2つ)の回路基板1
1.12が境界線Llを境に相隣接して分割可能に形成
されている。回路基板lL12の周囲には捨て基板13
が境界線L2を介して切断・除去可能に形成されている
。A plurality of (two in the illustrated example) circuit boards 1 are mounted on the board base material 10.
1.12 are formed adjacent to each other along the boundary line Ll so as to be divisible. A waste board 13 is placed around the circuit board LL12.
is formed so that it can be cut and removed via the boundary line L2.
回路基板11.12間及び回路基板lL12と捨て基板
13との間には、境界線L1及びL2を夫々横切る2つ
の銅箔パターン14.15が各一対で並列状に形成され
ている。この一対の銅箔パターン14.15は、実際に
は基板の分割線上の複数個所に設けられるのであるが、
図示例ではそのうちの2個所についてのみ示しである。Between the circuit boards 11 and 12 and between the circuit board LL12 and the disposable board 13, two pairs of copper foil patterns 14 and 15 are formed in parallel, crossing the boundary lines L1 and L2, respectively. This pair of copper foil patterns 14 and 15 are actually provided at multiple locations on the dividing line of the board, but
In the illustrated example, only two of these locations are shown.
2つの銅箔パターン14.15の両端、すなわち、回路
基板11側の一端と回路基板12側の他端とにレジスト
被膜を除去して銅箔を露出させたパターンのランドより
成る電極14A115A及び14B115Bが相隣り合
って各一対で形成されている。電極14A115A及び
14B、15Bの各中央には端子挿入孔14G、15C
1及び14D115Dが夫々表裏に貫通して形成されて
いる。Electrodes 14A, 115A and 14B, 115B are formed of lands of patterns in which the resist film is removed from both ends of two copper foil patterns 14 and 15, that is, one end on the circuit board 11 side and the other end on the circuit board 12 side, to expose the copper foil. are formed in pairs next to each other. Terminal insertion holes 14G, 15C are provided at the center of each of the electrodes 14A, 115A, 14B, and 15B.
1 and 14D115D are formed penetrating the front and back sides, respectively.
2つの銅箔パターン14.15は境界線Ll又はL2の
位置で第3の銅箔パターン16によって架橋状に接続さ
れている。第3の銅箔パターン16は、幅方向の中心線
が境界線Ll(L2)と−致する様に配設され、その幅
は加工しようとするVカット溝の幅と路間−又はそれよ
りも若干大きく形成されている。この第3のパターン1
6の幅は、■カット溝の境界線Ll又はL2に対する位
置ズレ量の許容公差分を含む大きさに設定しても良く、
同効である。許容公差を含む大きさとは、■カット溝の
幅に許容公差分を増減した大きさを指す。The two copper foil patterns 14 and 15 are connected in a bridge-like manner by a third copper foil pattern 16 at the boundary line Ll or L2. The third copper foil pattern 16 is arranged so that its center line in the width direction coincides with the boundary line Ll (L2), and its width is equal to or wider than the width of the V-cut groove to be processed. It is also formed slightly larger. This third pattern 1
The width of 6 may be set to a size that includes the allowable tolerance of the amount of positional deviation with respect to the boundary line Ll or L2 of the cut groove,
It has the same effect. The size including the allowable tolerance refers to the size obtained by increasing or decreasing the width of the cut groove by the allowable tolerance.
2つの銅箔パターン14.15と、その両端の電極14
A115A及び14B、15Bと、第3の銅箔パターン
16とにより略H型の溝加工確認用パターンか形成され
ている。Two copper foil patterns 14 and 15 and electrodes 14 on both ends thereof
A substantially H-shaped groove machining confirmation pattern is formed by A115A, 14B, 15B, and the third copper foil pattern 16.
次に上記構成の溝加工確認用パターンを用いた本発明の
Vカット溝加工の有無確認の手順・方法について説明す
る。Next, a procedure and method for checking the presence or absence of V-cut groove machining according to the present invention using the groove machining confirmation pattern having the above-mentioned configuration will be described.
■カット溝の加工の有無及び位置ズレの有無の検査にあ
たり、先ず、導通検査用の接触子、例えば通電検査機2
0の接点ピン21@−・か溝加工確認用パターンの各電
極14A114B及び15A115Bに押し当てられる
。次に、2つのパターン14.15の夫々の電極14A
114B間と15A115B間、及び境界線Ll(L2
)を境に一方側の相隣り合う電極14A、15A間と他
方側の隣り合う電極14B115B間の通電検査が行わ
れる。■When inspecting the presence or absence of machining of the cut grooves and the presence or absence of positional deviation, first, a contactor for continuity testing, such as a current testing machine 2
The contact pin 21@- of No. 0 is pressed against each electrode 14A114B and 15A115B of the groove machining confirmation pattern. Next, each electrode 14A of the two patterns 14.15
Between 114B and 15A115B, and the boundary line Ll (L2
), a current conduction test is performed between the adjacent electrodes 14A and 15A on one side and between the adjacent electrodes 14B and 115B on the other side.
先ず、第3図に示すように、何らかの要因により境界線
LL(L2)上にVカット溝が加工されていない場合は
、2つのパターン14.15の夫々の電極14A114
B間及び15A1158間ならびに相隣り合う電極14
A115A間と14B115B間とが共に導通有りとな
り、通電検査機20によりVカット溝が境界線Ll(L
2)上に加工されていないと判別される。First, as shown in FIG. 3, if a V-cut groove is not formed on the boundary line LL (L2) for some reason, the electrodes 14A114 of each of the two patterns 14.15.
Between B and between 15A1158 and adjacent electrodes 14
There is continuity between both A115A and 14B115B, and the V-cut groove is located at the boundary line Ll (L
2) It is determined that there is no processing on the top.
次に、第4図(イ)のように境界線Ll(L2)上にV
カット溝17が加工され、■カット溝17によって第3
の銅箔パターン16が除去されていると、2つのパター
ン14.15の夫々の両端の電極14A、14B間及び
15A、15B間がオープンになり、すなわち、非導通
状態となり、境界線Ll(L2)上にVカット溝17の
加工が施すしていると判別・確認される。この場合にお
いて、境界線Ll(L2)に対して一方側と他方側の夫
々の相隣り合う電極14A115A間と14B、15B
間とが共にオープンであれば、■カット溝17が境界線
Ll(L2)上に中心線を正しく一致させ、又はその許
容公差の範囲内で正しい位置に加工されているものと判
別される。Next, as shown in Fig. 4 (a), V is placed on the boundary line Ll (L2)
The cut groove 17 is machined, and the third
When the copper foil pattern 16 is removed, the electrodes 14A and 14B and between the electrodes 15A and 15B at both ends of the two patterns 14 and 15 become open, that is, they become non-conductive, and the boundary line Ll (L2 ) It is determined and confirmed that the V-cut groove 17 has been processed on the top. In this case, between the adjacent electrodes 14A, 115A and 14B, 15B on one side and the other side with respect to the boundary line Ll (L2),
If both are open, it is determined that (1) the center line of the cut groove 17 is correctly aligned with the boundary line Ll (L2), or it is determined that the cut groove 17 has been machined in the correct position within the allowable tolerance range.
他方、どちらか一方側の電極間、例えば電極14A11
5B間がオープンで、他方側の相隣る電極14B115
B間が導通している場合は、Vカット溝17が境界線上
の正しい位置に加工されておらず、第4図(ロ)のよう
に、境界線に対してオープンになった一方側の電極14
A115Aの側に許容範囲を越えて位置ズレしていると
判別される。この場合は、第3の銅箔パターン16がV
カット溝17の位置ズレによって完全に除去されず、そ
の一部または全体がそのままで残存することになり、こ
の第3のパターン16を介して他方の電極14B115
B間が導通することになる。On the other hand, between the electrodes on either side, for example, electrode 14A11
5B is open, and adjacent electrodes 14B115 on the other side
If there is continuity between B and B, the V-cut groove 17 is not machined at the correct position on the boundary line, and one side of the electrode is open to the boundary line, as shown in Figure 4 (B). 14
It is determined that the position has shifted to the A115A side beyond the allowable range. In this case, the third copper foil pattern 16 is
Due to the positional deviation of the cut groove 17, it is not completely removed and a part or the whole remains as it is, and the other electrode 14B115 is removed through this third pattern 16.
B will be electrically connected.
したがって、一方の電極14A115A間がオープンで
あってVカット溝17が加工されていると判別された場
合においても、他方の隣り合う電極14B115B間の
導通により、■カット溝17か本来あるべき正しい位置
に加工されず、境界線上から一方側に位置ズレしている
ものと判別される。また、その位置ズレの方向もどちら
の電極間がオープンになったかを見ることにより同時に
容易に判別することができる。Therefore, even if it is determined that one electrode 14A115A is open and the V-cut groove 17 is machined, the conduction between the other adjacent electrodes 14B115B will cause the cut groove 17 to be placed in the correct position. It is determined that the image is not processed and is shifted to one side from the boundary line. Furthermore, the direction of the positional shift can be easily determined at the same time by seeing which electrode gap is open.
次に、第6図、第7図は本発明に係るプリント基板のV
カット溝確認用パターンの他の実施例を示すものである
。Next, FIGS. 6 and 7 show the V of the printed circuit board according to the present invention.
Another example of the cut groove confirmation pattern is shown.
第6図において上記第1実施例を示す第1図〜第4図と
同一部分には同一符号を付し、説明を省略する。この第
6図において、1方側と他方側の各回路基板11.12
の相隣接する各電極14A114B及び15A、15B
を夫々両端に有する2本のパターン14.15は、境界
線を横切り、相手側回路基板11又は12の対角位置に
ある電極の方向に向き、中央方向に略く字状に屈曲して
いる。そして、2本の銅箔パターン14.15は、境界
線Ll(L2)上で、略くの字の中央部間を第3の銅箔
パターン16′によって接続されている。この第3の銅
箔パターン16°の幅は加工しようとするVカット溝1
7の幅と同−又はやや幅広に形成されている。第3のパ
ターン16゛の中心線は境界線Ll(L2)と一致して
いる。この第3のパターン16゛の幅は、上記同様に、
■カット溝の境界線Ll(L2)に対する位置ズレの許
容公差分を含む大きさに設定しても良い。この第6図に
示す実施例構造にあっても、上記同様のVカット溝確認
の作用効果を得ることができる。In FIG. 6, the same parts as in FIGS. 1 to 4 showing the first embodiment are designated by the same reference numerals, and their explanation will be omitted. In this FIG. 6, each circuit board 11.12 on one side and the other side
Each adjacent electrode 14A, 114B and 15A, 15B
The two patterns 14 and 15, each having a pattern 14 and 15 at both ends, cross the boundary line, face toward the electrodes located at diagonal positions on the mating circuit board 11 or 12, and are bent toward the center in a substantially dogleg shape. . The two copper foil patterns 14 and 15 are connected on the boundary line Ll (L2) by a third copper foil pattern 16' between the substantially doglegged centers. The width of this third copper foil pattern 16° is the V-cut groove 1 to be processed.
It is formed to have the same width as No. 7 or a little wider than No. 7. The center line of the third pattern 16' coincides with the boundary line Ll (L2). The width of this third pattern 16゛ is, as above,
(2) The size may be set to include an allowable tolerance for positional deviation with respect to the boundary line Ll (L2) of the cut groove. Even with the structure of the embodiment shown in FIG. 6, the same effect of V-cut groove confirmation as described above can be obtained.
さらに、第7図は本発明に係るVカット溝確認用パター
ンの第3の実施例を示すもので、上記各実施例と同一部
分には同一符号を付し、説明を省略する。Furthermore, FIG. 7 shows a third embodiment of the V-cut groove confirmation pattern according to the present invention, and the same parts as in the above embodiments are denoted by the same reference numerals, and the explanation thereof will be omitted.
第7図において、一方側の回路基板11又は12、図示
例では基板11の境界線Ll(L2)の近くに、3個の
電極24A、25A126Aが境界線と平行な方向に並
設されている。夫々の中心には端子挿入孔24B、25
B、26Bが貫通形成されている。In FIG. 7, three electrodes 24A, 25A, and 126A are arranged in parallel in a direction parallel to the boundary line near the boundary line Ll (L2) of the circuit board 11 or 12 on one side, the substrate 11 in the illustrated example. . Terminal insertion holes 24B and 25 are provided at the center of each.
B, 26B are formed through.
中央の電極25A及び一方側の電極24Aから、銅箔パ
ターン24.25が平行に延長され、境界線Ll(L2
)を横切って他方の回路基板12に延びている。その境
界線Ll(L2)に近接する端部間は第3の銅箔パター
ン27によって接続されている。第3の銅箔パターン2
7は、境界線L1(L2)とは接触せず、その近接位置
で平行に沿っている。2本の銅箔パターン24.25と
第3の銅箔パターン27とによって略コ字状のパターン
形状が形成されている。Copper foil patterns 24.25 are extended in parallel from the center electrode 25A and the electrode 24A on one side, and the boundary line Ll (L2
) to the other circuit board 12. The ends close to the boundary line Ll (L2) are connected by a third copper foil pattern 27. Third copper foil pattern 2
7 does not contact the boundary line L1 (L2), but runs parallel to it at a position close to it. The two copper foil patterns 24 and 25 and the third copper foil pattern 27 form a substantially U-shaped pattern shape.
さらに、中央の電極25Aに対して他方側の電極26A
から境界線Ll(L2)の方向に第4の銅箔パターン2
8が延出されている。その端部は境界線Ll(L2)を
横切ることなく、その近接位置で中央の電極25Aを有
する銅箔パターン25の方向へ鉤状に屈曲され、該銅箔
パターン25に接続されている。第4のパターン28の
屈曲部28Aは、境界線Ll(L2)と平行かつ近接し
た位置に形成されている。そして、第3のパターン27
と第4のパターン28の屈曲部28Aとは、境界線Ll
(L2)を挾んで平行な関係になっている。さらに、第
3のパターン27の境界線に対して外側端縁と第4のパ
ターンの屈曲部28Aの外側端縁間の幅は、■カット溝
17の幅よりもやや狭く、■カット溝が境界線上に正し
く加工されたとき、双方共に切断・除去されるようにな
っている。Furthermore, the electrode 26A on the other side with respect to the center electrode 25A
From the fourth copper foil pattern 2 in the direction of the boundary line Ll (L2)
8 is extended. The end thereof is bent into a hook shape in the direction of the copper foil pattern 25 having the central electrode 25A at a position close to the boundary line L1 (L2), and is connected to the copper foil pattern 25. The bent portion 28A of the fourth pattern 28 is formed in a position parallel to and close to the boundary line Ll (L2). And the third pattern 27
and the bent portion 28A of the fourth pattern 28 are defined by the boundary line Ll.
They have a parallel relationship with (L2) in between. Further, the width between the outer edge of the third pattern 27 and the outer edge of the bent portion 28A of the fourth pattern is slightly narrower than the width of the cut groove 17; When the line is processed correctly, both sides are cut and removed.
この第7図のパターン形状において、接触子21を各電
極24A125A128Aに接触させて、中央の電極2
5Aと一方側の電極24A間、及び中央の電極25Aと
他方側の電極2eA間の導通の有無を検査すると、次の
ような結果が得られる。In the pattern shape of FIG. 7, the contactor 21 is brought into contact with each electrode 24A125A128A, and the center electrode 2
When examining the presence or absence of continuity between the electrode 5A and the electrode 24A on one side, and between the center electrode 25A and the electrode 2eA on the other side, the following results are obtained.
■カット溝17が境界線Ll(L2)上に位置ズレなく
正しく加工されている場合は、第3のパターン27及び
第4のパターン28の屈曲部28Aが切断・除去され、
パターン24.25間及びパターン25.26間が共に
オープンになるため、中央の電極25Aと一方側の電極
24A間、及び中央の電極25Aと他方側の電極2eA
間が共に導通無しと検出される。これによって、■カッ
ト溝17が境界線上に正しく加工されていると判別され
る。■If the cut groove 17 is processed correctly without any positional deviation on the boundary line Ll (L2), the bent portions 28A of the third pattern 27 and the fourth pattern 28 are cut and removed;
Since the patterns 24 and 25 and the patterns 25 and 26 are both open, there are gaps between the center electrode 25A and the electrode 24A on one side, and between the center electrode 25A and the electrode 2eA on the other side.
It is detected that there is no continuity between the two. As a result, it is determined that the cut groove 17 is correctly machined on the boundary line.
一方、Vカット溝17が境界線Ll(L2)I対してい
ずれか一方の回路基板11又は12側にズして加工され
ていると、パターン27又は28を通して電極24A1
25A間、又は電極25A12eA間のいずれか一方が
導通有り、他方が導通無しと検出される。これによって
、Vカット溝17か加工されていると確認されると同時
に、正しい位置に加工されておらす、境界線に対してい
ずれか一方の回路基板11又は12側に位置スレしてい
るものと判別される。On the other hand, if the V-cut groove 17 is processed to be shifted toward one of the circuit boards 11 or 12 with respect to the boundary line Ll (L2)I, the electrode 24A1 will pass through the pattern 27 or 28.
It is detected that there is conduction between the electrodes 25A or between the electrodes 25A and 12eA, and that there is no conduction between the other electrodes. This confirms that the V-cut groove 17 has been machined, and at the same time confirms that it has been machined in the correct position.If the V-cut groove 17 has been machined in the correct position, it can be confirmed that the V-cut groove 17 has been machined in the correct position. It is determined that
さらに、■カット溝17が全く加工されていないときは
、各電極24A125A間、及び25A126A間がい
ずれも導通有りと検出される。これによって、何らかの
要因によってVカット溝か未加工であると判別される。Further, (2) When the cut groove 17 is not processed at all, conduction is detected between the electrodes 24A and 125A and between the electrodes 25A and 126A. As a result, it is determined that the groove is a V-cut groove or not processed due to some factor.
以上によって、第7図に示すパターン形状であっても、
上記第1、第2の実施例と同様に、■カット溝の加工の
有無ならびにその加工が境界線上に正しく行われている
かどうかの判別・確認が目視によることなく正確に行え
る。From the above, even with the pattern shape shown in FIG.
As in the first and second embodiments described above, (1) it is possible to accurately determine and confirm whether or not the cut groove has been processed and whether or not the processing has been performed correctly on the boundary line without visual inspection;
なお、導通検査に用いる断線検知装置は通電検査機20
のみに限らず、各種の計器を用いることができる。テス
ター等の簡易型のものも、勿論使用可である。The disconnection detection device used for the continuity test is the electrical continuity tester 20.
It is not only possible to use only one instrument, but also various instruments. Of course, a simple type such as a tester can also be used.
発明の詳細
な説明したとおり、本発明によれば、分割基板の境界線
上に形成されるVカット溝の加工の有無ならびにその加
工位置のズレの有無が同時に確実容易に判別・確認でき
る。したがって、位置ズレによる不具合をなくすことが
できる。As described in detail, according to the present invention, it is possible to simultaneously and reliably and easily determine whether or not a V-cut groove formed on the boundary line of a divided substrate has been processed, and whether or not the processed position has shifted. Therefore, problems caused by positional deviation can be eliminated.
第1図は本発明に係るプリント基板の部分平面図、第2
図はその要部を拡大して示す平面図、第3図はVカット
溝の加工の有無の確認手順・方法を説明する部分拡大平
面図、第4図(イ)、(ロ)は同じく■カット溝の加工
の有無ならびに位置スレの有無の確認手順・方法を説明
する部分拡大平面図、第5図(イ)、(ロ)、(ハ)は
従来例を示す夫々部分平面図である。第6図、第7図は
本発明に係るプリント基板のVカット溝確認用パターン
の他の実施例を示す夫々要部拡大平面図である。
10・・・プリント基板、
11.1211・・回路基板、
17・・・Vカット溝、
Ll 1L2 ・41−境界線、
28・φ・第4の銅箔パターン、
28A@働・屈曲部。FIG. 1 is a partial plan view of a printed circuit board according to the present invention, and FIG.
The figure is an enlarged plan view showing the main part, Figure 3 is a partially enlarged plan view explaining the procedure and method for checking whether the V-cut groove has been processed, and Figures 4 (a) and (b) are the same as ■ FIGS. 5(a), 5(b), and 5(c) are partially enlarged plan views illustrating a procedure and method for checking whether or not cut grooves have been processed and whether there are positional scratches. FIGS. 5A, 5B, and 5C are partial plan views showing conventional examples. FIGS. 6 and 7 are enlarged plan views of essential parts of other embodiments of the V-cut groove confirmation pattern for printed circuit boards according to the present invention. 10...Printed board, 11.1211...Circuit board, 17...V-cut groove, Ll 1L2 ・41- boundary line, 28・φ・4th copper foil pattern, 28A@working/bending part.
Claims (9)
能に形成し、該分割すべき境界線上にVカット溝が加工
されるプリント基板において、前記Vカット溝加工位置
に前記境界線を横切る2本の銅箔パターンを並設し、夫
々の銅箔パターンの両端に銅箔を露出させてパターンの
ランドより成る電極を形成すると共に、前記2本の銅箔
パターンを前記境界線上で架橋・接続する第3の銅箔パ
ターンを前記Vカット溝と略同一幅で形成して成ること
を特徴とするプリント基板。(1) In a printed circuit board in which a plurality of circuit boards or a board main body and a sacrificial board are formed so as to be divisible, and a V-cut groove is machined on the boundary line to be divided, the boundary line is crossed at the position where the V-cut groove is machined. Two copper foil patterns are arranged side by side, the copper foil is exposed at both ends of each copper foil pattern to form an electrode consisting of a land of the pattern, and the two copper foil patterns are bridged on the boundary line. A printed circuit board characterized in that a third copper foil pattern to be connected is formed with substantially the same width as the V-cut groove.
カット溝の境界線に対する位置ズレ量の許容差分を含む
幅で形成されていることを特徴とするプリント基板。(2) In claim (1), the third copper foil pattern is V
A printed circuit board characterized in that the printed circuit board is formed with a width that includes an allowable difference in the amount of positional deviation with respect to the boundary line of the cut groove.
銅箔パターンとにより略H型のV溝加工確認用パターン
が形成されて成る請求項(1)又は(2)記載のプリン
ト基板。(3) The print according to claim (1) or (2), wherein a substantially H-shaped V-groove processing confirmation pattern is formed by two copper foil patterns and a third copper foil pattern connecting them. substrate.
ある電極の方向へ略X状に延長され、前記境界線上で第
3の銅箔パターンによって接続されていることを特徴と
する請求項(1)または(2)記載のプリント基板。(4) The two copper foil patterns extend in a substantially X-shape toward electrodes located diagonally across the boundary line, and are connected by a third copper foil pattern on the boundary line. The printed circuit board according to claim (1) or (2).
能に形成し、該分割すべき境界線上にVカット溝が加工
されるプリント基板において、前記境界線を挟む一方側
回路基板に銅箔パターンのランドを露出させて少なくと
も3個の電極を並設し、中央の電極とその一方側の電極
とを夫々有する2本の銅箔パターンを前記境界線を横切
って他方側の回路基板に延長させ、その端部間を前記境
界線と平行、かつ該境界線と近接する第3のパターンで
接続すると共に、前記中央の電極に対して前記一方側の
電極と反対の他方側電極から前記境界線の方向に第4の
銅箔パターンを延長し、その延長端部を前記境界線の近
接位置で前記中央の電極を有するパターン方向に前記境
界線に沿って延長し、該パターンに接続させ、前記第3
のパターンと第4のパターンの前記境界線に沿う屈曲部
分とが前記境界線を挾んで略平行かつ該境界線と近接し
て位置するようにパターン形状が形成されていることを
特徴とするプリント基板。(5) In a printed circuit board in which a plurality of circuit boards or a board main body and a sacrificial board are formed so as to be divisible, and a V-cut groove is formed on the dividing line, one side of the circuit board sandwiching the boundary line is covered with copper. At least three electrodes are arranged in parallel with the land of the pattern exposed, and two copper foil patterns each having a central electrode and an electrode on one side thereof are extended across the boundary line to the circuit board on the other side. and the ends thereof are connected by a third pattern parallel to and close to the boundary line, and the border is connected from the other side electrode opposite to the one side electrode with respect to the center electrode. extending a fourth copper foil pattern in the direction of the line, and extending an extended end thereof along the boundary line in the direction of the pattern having the central electrode at a position close to the boundary line, and connecting it to the pattern; Said third
A print characterized in that the pattern shape is formed such that the pattern and the bent portion of the fourth pattern along the boundary line are positioned substantially parallel to and close to the boundary line, sandwiching the boundary line. substrate.
基板において、2つの銅箔パターンの夫々の両端に設け
た電極に導通検査用の接触子を当接させ、境界線を挾む
一方と他方との各相隣る電極間と、2つのパターンの各
両端の電極間との導通の有無を検知することを特徴とし
たプリント基板のVカット溝確認方法。(6) In the printed circuit board according to claim (1), (2) or (4), contactors for continuity testing are brought into contact with electrodes provided at both ends of each of the two copper foil patterns, and the boundary line is A method for checking a V-cut groove on a printed circuit board, characterized by detecting the presence or absence of conduction between adjacent electrodes on one side and the other side of the sandwich, and between electrodes at both ends of two patterns.
他方側との各相隣接する電極間の導通の有無に応じて加
工されたVカット溝の前記境界線に対する位置ズレの有
無を検出することを特徴としたプリント基板のVカット
溝確認方法。(7) In claim (6), presence or absence of positional deviation with respect to the boundary line of the V-cut groove processed according to the presence or absence of conduction between adjacent electrodes of each phase on one side and the other side via the boundary line. A method for confirming a V-cut groove on a printed circuit board, characterized by detecting.
の電極とその両側の一方側と他方側の各電極とに導通検
査用の接触子を当接させ、前記中央の電極と一方側の電
極間、及び前記中央の電極と他方側の電極間の導通の有
無を検知することを特徴とするプリント基板のVカット
溝確認方法。(8) In the printed circuit board according to claim (5), a contactor for continuity testing is brought into contact with the central electrode and each electrode on one side and the other side on both sides thereof, and A method for checking a V-cut groove on a printed circuit board, the method comprising detecting the presence or absence of conduction between electrodes and between the center electrode and the other electrode.
極間、及び中央の電極と他方側の電極間の導通の有無に
応じて加工されたVカット溝の前記境界線に対する位置
ズレの有無を判別することを特徴としてプリント基板の
Vカット溝確認方法。(9) In claim (8), the positional deviation with respect to the boundary line of the V-cut groove processed according to the presence or absence of conduction between the center electrode and the electrode on one side and between the center electrode and the electrode on the other side. A method for checking a V-cut groove on a printed circuit board, characterized by determining the presence or absence of a V-cut groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33392488A JPH02180088A (en) | 1988-12-30 | 1988-12-30 | Printed board and confirming method for v-cut groove thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33392488A JPH02180088A (en) | 1988-12-30 | 1988-12-30 | Printed board and confirming method for v-cut groove thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02180088A true JPH02180088A (en) | 1990-07-12 |
Family
ID=18271490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP33392488A Pending JPH02180088A (en) | 1988-12-30 | 1988-12-30 | Printed board and confirming method for v-cut groove thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02180088A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02270388A (en) * | 1989-01-31 | 1990-11-05 | Toppan Printing Co Ltd | Printed wiring board |
JPH0399460U (en) * | 1990-01-30 | 1991-10-17 | ||
JPH04316392A (en) * | 1991-04-16 | 1992-11-06 | Nec Toyama Ltd | Manufacture of printed wiring board |
-
1988
- 1988-12-30 JP JP33392488A patent/JPH02180088A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02270388A (en) * | 1989-01-31 | 1990-11-05 | Toppan Printing Co Ltd | Printed wiring board |
JPH0399460U (en) * | 1990-01-30 | 1991-10-17 | ||
JPH04316392A (en) * | 1991-04-16 | 1992-11-06 | Nec Toyama Ltd | Manufacture of printed wiring board |
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