JPS58178589A - Device for etching printed board - Google Patents
Device for etching printed boardInfo
- Publication number
- JPS58178589A JPS58178589A JP6155282A JP6155282A JPS58178589A JP S58178589 A JPS58178589 A JP S58178589A JP 6155282 A JP6155282 A JP 6155282A JP 6155282 A JP6155282 A JP 6155282A JP S58178589 A JPS58178589 A JP S58178589A
- Authority
- JP
- Japan
- Prior art keywords
- area
- etching
- etching solution
- printed board
- bullet
- 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.)
- Granted
Links
Landscapes
- ing And Chemical Polishing (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、電子部品実装用のプリント板を製造する際に
使用されるブリット板のエツチング装置に関するもので
あるっ
近時の電子機器においては、電子部品の高密Ill!装
化が強く要請されるため、プリント板のパターンがます
ます細蛮化される傾向にある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an etching device for bullet boards used in manufacturing printed boards for mounting electronic components. Due to the strong demand for packaging, printed board patterns are becoming increasingly sophisticated.
ところで、ブリット板のパターン密度は各部均一でない
のが一般的であるが、従来のブリット板製造工程では、
プリント板全体をエツチング液に浸したり、ブリット板
にエツチング液を一様に噴きつけたりすること螢こよっ
て、各部分に同一の条件でエツチング処理を施すよう身
こしている。そOJため、パターンを細密化すると、パ
ターン各部の疎密度合の違い、換言すれば、パターン各
部の黒化面積率の違い■こまって、オーバエッチノブに
なる部分が発生してパターン上■こおける断線事故を招
いたりパターンの仕上り寸法不良を招く可能性が高くな
り、プリント板の島質が悪くなるという問題がある。By the way, the pattern density of a bullet board is generally not uniform in each part, but in the conventional bullet board manufacturing process,
By immersing the entire printed board in the etching solution or spraying the etching solution uniformly onto the printed board, we ensure that each part is etched under the same conditions. Therefore, when the pattern is made finer, there are differences in the density density of each part of the pattern, in other words, differences in the blackened area ratio of each part of the pattern.As a result, parts that become over-etched knobs are generated, causing damage to the pattern. There is a problem that there is a high possibility of causing a disconnection accident or a defective finished pattern size, and that the island quality of the printed board deteriorates.
本発明は、このような事情−〇着目してなされタモので
、ブリット板のエツチング処理面を複数の区域−ζ仮想
分割し、これら各区域に各別なエッチノダ液供給径路を
通して条件の異なったエツチング液をそれぞれ供給し得
るよう1こ構成することIこよって、前述した不都合を
解消することができるようにしたブリット板のエツチン
グ装置を提供するものである。The present invention has been made with attention to such circumstances, and therefore, the etching surface of the bullet plate is virtually divided into a plurality of regions, and each region is subjected to etching under different conditions by passing a different etching solution supply route to each region. The object of the present invention is to provide an etching apparatus for a bullet plate which can solve the above-mentioned inconveniences by configuring one device so that liquids can be supplied to each device.
以下、本発明の一実施例を図面を参照して説明する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
エツチング処理を施すべき1111mの全域を複数の区
域a・・・に仮想分割したブリット板lをプリント板保
持機構21こまって所定位置に位置決め保持するよう1
こしている。具体的1こはブリット板保持機構2は、前
記ブリット板1を把持する把持部材かを図示しない作動
機により昇降させ得るよう醗こしtこもので、前記ブリ
ット板1は前記把持部材ハに保持されて溶液槽8内の所
定位置に位置決めされるようになっている。また、終端
盛こ噴出口4畠を有した複数本のエツチング液供給径路
4・・・を、それら各噴出口4a・・・を所定位置に位
置決めされたブリット板lの各区域a・・・にそれぞれ
対向させて配置している。具体的には、前記エツチング
液供給径路4・・・は、前記溶液槽8の一個壁B&に貫
着したパイプ材によって構成されており、これら各エツ
チング液供給径路4・・・の始端鈍は、幹径路5を介し
てエツチング液送給ポツプ、6の旺出r36a Iこ接
続されている。すなわち、創記エツチノグ液送給ポツプ
6から送り出されるエツチング液7が、幹径路5を通し
て11u記各エツチング紗供給径路4・・・内へ送り込
まれ、これら各エツチング液供給径路4・・・の噴出口
4a・・・からブリット板1の対応する各区域a・・・
に向けて噴射されるようlζなっている。まt:、エツ
チング液制御手段8を設け、前記各エツチング液供給径
路4・・・から前記各区域a・・・lこ供給されるエツ
チング液の量を各別に制御するようlこしている。具体
的−〇は、エツチング液制御手段8は、前記各エツチン
グ液供給径路4・・・の途中−こそれぞれ介設した流量
制御弁11・・・と、前記各区域畠・・・に対応する真
数の設定信号n・・・Iこ基いて躬記晶流量制卿弁11
・・・を各別に開閉制御する流量制御装置12と、この
流量制御装置112に向けて前記各区域a・・・の黒化
面積率iこ対応する複数の設定信号n・・・を出力する
流量設定装置18とを具備してなる。なお、罰記各設定
信号n・・・の値は、l記ブリット板lの各区域a・・
・−こおける黒化面積率を予め測定しておき、それら各
絢定値醗こ基いて各別IC決疋される。つまり、これら
各般定倒+!In・・・は前記各区域a・・・に、これ
ら各区域島のパターン密1Jjtこ適合した量のエツチ
ング液がそれぞれ供給され得るような値に設定されるも
のである。前記各区域a・・・の黒化面積率を測定する
方法は、例えば次のようである。まず、測定すべきブリ
ット板lと同一のパターンを有したパターン表示教を作
成する。そして、このパターン表示教七のパターンをI
TVやCODカメラ等を用いて電気信号lこ変換すると
とも1こ、その電気信号を二値化手段を用いて各単位領
域毎の黒白判別信号(各単位領域が黒白いずれであるの
かを示すデジタル(jI号)Iこ変換する。そして、全
パターンに関する黒白判別信号を画像メモリ鹸こ番地を
つけて記憶させておき、指定しtコ特定凶城aに含まれ
る楓数の単位領域の黒白判別信号のみを取り出して演算
処理を施すことによって当該特定区域aの黒化面積率を
算出する。しかして、区域の指定を舶次変史してゆくこ
とによって前記ブリット板lの全区域a・・叫こ関する
黒化面積率を各別に知ることができる。なお、前記二値
化手段から転送される黒白判別信号暑こ関する以tのよ
うな処理は、例えば、通常のマイクロコノピユータシス
テムを用いて行なうことができる。A printed board holding mechanism 21 is used to position and hold the bullet board l, which is the entire area of 1111 m to be etched, virtually divided into a plurality of areas a, at a predetermined position.
It's straining. Specifically, the bullet plate holding mechanism 2 is a hardened structure so that a gripping member for gripping the bullet plate 1 can be raised and lowered by an actuator (not shown), and the bullet plate 1 is held by the gripping member. It is designed to be positioned at a predetermined position within the solution tank 8. In addition, a plurality of etching liquid supply paths 4 each having four terminal embankment ejection ports 4 are connected to each area a of the brit plate l in which each of the ejection ports 4a is positioned at a predetermined position. are placed facing each other. Specifically, each of the etching liquid supply paths 4 is made of a pipe material that penetrates one wall B& of the solution tank 8, and the starting end of each of these etching liquid supply paths 4 is blunt. , are connected to the etching liquid supply pot and the outlet r36a of the etching liquid supply pot 6 through the main path 5. That is, the etching liquid 7 sent out from the etching liquid supply pot 6 is sent through the main path 5 into each etching gauze supply path 4 . From the outlet 4a... to each corresponding area a... of the bullet plate 1...
lζ so that it is injected towards. Also, an etching liquid control means 8 is provided to separately control the amount of etching liquid supplied from each etching liquid supply path 4 to each of the areas a...l. Specifically, ○ indicates that the etching liquid control means 8 corresponds to the flow rate control valves 11 interposed in the middle of each of the etching liquid supply paths 4 and the respective area fields. Based on the antilog setting signal n...I, the crystal flow control valve 11
A flow rate control device 12 that separately controls the opening and closing of..., and a plurality of setting signals n... corresponding to the blackened area ratio i of each area a... are output to this flow rate control device 112. The flow rate setting device 18 is provided. In addition, the value of each setting signal n... for each area a... of the bullet board l...
- The blackened area ratio in each area is measured in advance, and each IC is determined based on the measured values. In other words, all of these things are fixed +! In... is set to a value such that an amount of etching liquid suitable for the pattern density of each area island can be supplied to each area a.... The method of measuring the blackened area ratio of each area a is as follows, for example. First, a pattern display pattern having the same pattern as the bullet plate l to be measured is created. And this pattern display teaching seven patterns I
When an electrical signal is converted using a TV or COD camera, etc., the electrical signal is converted into a black/white discrimination signal for each unit area using a binarization means (a digital signal indicating whether each unit area is black or white). (No. jI) Conversion is performed.Then, the black and white discrimination signals for all patterns are stored in the image memory with the address assigned, and the black and white discrimination of the unit area of the number of maples included in the specific evil castle a is performed. By extracting only the signal and performing arithmetic processing, the blackening area rate of the specific area a is calculated.By changing the designation of the area from time to time, the entire area a of the bullet board l... It is possible to know the blackening area rate for each color separately.The following processing regarding the black and white discrimination signal heat transferred from the binarization means can be performed using, for example, a normal microcomputer system. It can be done using
このような構成のものであれば、エツチング処理を施す
べきプリント板11こ噴き付けられるエツチング液の量
が従来のよう5こ一様ではなくなる。With such a configuration, the amount of etching liquid sprayed onto the printed board 11 to be etched is no longer uniform as in the conventional case.
すなわち、各区域Mlこ、それぞれその黒化面積率に応
じた鏝適な量のエツチング液が供給されることになる。In other words, an appropriate amount of etching liquid is supplied to each area M1 according to its blackened area ratio.
したがって、パターンが疎の部分はエツチングが速く進
行するとともに密の部分はエツチングが遅く進行するた
めにオーバエツチングIこなる部分が発生するというよ
うな不都合が一切なく、仕上がりが均一で寸法精度の茜
いバターノヲ有した品質のよいプリント板を得ることが
できるものである。Therefore, etching progresses quickly in areas with a sparse pattern, while etching progresses slowly in areas with a dense pattern, so there is no inconvenience such as over-etched areas, and the finish is uniform and dimensional accuracy is achieved. It is possible to obtain a high-quality printed board with a high butter flow.
なお、エツチング液制御手段は、エツチング液の量を制
御するもの1こ限らず、例えば、ブリット板の各区域の
黒化面積率Jこ対応した+11[fまたはPHのエツチ
ング液が前記各区域に供給され得るように、各エツチン
グ液供給径路を通過するエツチング液の濃度まt二はr
ttを各別1こ制御するような構成のもの−こしてもよ
い。Note that the etching liquid control means is not limited to one that controls the amount of etching liquid, and for example, an etching liquid of +11 [f or PH corresponding to the blackened area ratio J of each area of the bullet plate is applied to each area. The concentration or r of the etching solution passing through each etching solution supply path is such that it can be supplied.
A configuration in which tt is controlled separately may also be used.
以り、 説明しtこよう5こ、本発明は、プリント板の
エツチング処理面を複数の区域iこ仮想分割しこれら各
区域iこ各別なエツチング液供給径路を通して条件の異
なったエツチング液を供給し樹るまう構成し、各区域の
エツチング進行度合を各区域のパターン密度に合せて各
別に制御できるよう暑こしたので、オーバーエツチング
部分等が発生して断線事故や仕tり寸法不良を招くとい
う不都合を一掃することが可能であり、特−こ細密化さ
れたパターンを有するブリット板の品質を大幅1こ向t
させることができるプリント板のエツチング装置を提供
できるものである。As explained below, the present invention virtually divides the etched surface of a printed circuit board into a plurality of regions, and applies an etching solution under different conditions to each region through a different etching solution supply path. The structure was designed so that the degree of etching progress in each area could be controlled individually according to the pattern density in each area, so over-etching could occur, resulting in wire breakage or poor finishing dimensions. It is possible to wipe out the inconvenience of causing problems, and the quality of bullet plates with particularly fine patterns can be greatly improved.
Accordingly, it is possible to provide a printed board etching apparatus that can perform etching.
W41図は本発明の一実施例を示す斜視図、第2図は一
実施例におけるブリット板を示す概略正−図である。
1・・・プリント板 a・・・区域
2・・・ブリット板保持機構
4・・・エツチング液供給径路
4a・・・噴出口 8・・・エツチング液制御手段1
1・・・流m11m弁 12・・・流量制御装置1F
・・流量設定装置
代理人 弁理士 赤澤−博Figure W41 is a perspective view showing one embodiment of the present invention, and Figure 2 is a schematic front view showing a bullet plate in one embodiment. DESCRIPTION OF SYMBOLS 1... Printed board a... Zone 2... Bullet board holding mechanism 4... Etching liquid supply path 4a... Spout port 8... Etching liquid control means 1
1...Flow m11m valve 12...Flow rate control device 1F
...Flow rate setting device agent Patent attorney Hiroshi Akazawa
Claims (1)
分割したプリント板を所定位置に位置決め保持するプリ
ント板保持機構と、この保持機構−こ保持されたブリッ
ト板の各区域に噴出口を対向させて配置されこれら各噴
出口から前記各区域に向けてエツチング液をそれぞれ噴
射する複数本のエツチング液供給径路と、前記ブリット
板の各区域の黒化面積率に対応した量、濃度またはPH
のエツチング液が躬記各区域I乙供給され得るように前
記各エツチング液供給径路を通過するエツチング液の量
、濃度またはPHを各別に制御するエツチング液制御手
段とを具備してなることを特徴とするプリント板のエツ
チング装置。A printed board holding mechanism that positions and holds a printed board in a predetermined position, which virtually divides the entire surface of the surface to be etched into a plurality of areas, and a jetting port that faces each area of the held bullet board. a plurality of etching solution supply paths which are arranged in such a manner that the etching solution is injected from each of these jetting ports toward each of the areas, and an amount, concentration, or pH corresponding to the blackened area ratio of each area of the bullet plate
Etching solution control means for separately controlling the amount, concentration or pH of the etching solution passing through each of the etching solution supply paths so that the etching solution can be supplied to each area. Etching equipment for printed boards.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6155282A JPS58178589A (en) | 1982-04-12 | 1982-04-12 | Device for etching printed board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6155282A JPS58178589A (en) | 1982-04-12 | 1982-04-12 | Device for etching printed board |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58178589A true JPS58178589A (en) | 1983-10-19 |
JPH0219991B2 JPH0219991B2 (en) | 1990-05-07 |
Family
ID=13174385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6155282A Granted JPS58178589A (en) | 1982-04-12 | 1982-04-12 | Device for etching printed board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58178589A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02258986A (en) * | 1988-08-12 | 1990-10-19 | Internatl Business Mach Corp <Ibm> | Method and apparatus for etching |
-
1982
- 1982-04-12 JP JP6155282A patent/JPS58178589A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02258986A (en) * | 1988-08-12 | 1990-10-19 | Internatl Business Mach Corp <Ibm> | Method and apparatus for etching |
Also Published As
Publication number | Publication date |
---|---|
JPH0219991B2 (en) | 1990-05-07 |
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