JPH03142114A - Fine hole processing method for laminate board - Google Patents
Fine hole processing method for laminate boardInfo
- Publication number
- JPH03142114A JPH03142114A JP27800289A JP27800289A JPH03142114A JP H03142114 A JPH03142114 A JP H03142114A JP 27800289 A JP27800289 A JP 27800289A JP 27800289 A JP27800289 A JP 27800289A JP H03142114 A JPH03142114 A JP H03142114A
- Authority
- JP
- Japan
- Prior art keywords
- drill
- magnet
- tip
- dia
- laminate
- 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
- 238000003672 processing method Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000005553 drilling Methods 0.000 claims description 19
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract 3
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 238000004441 surface measurement Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、積層板の微細穴加工方法に関するものであ
る。さらに詳しくは、この発明は、プリント配線板用の
微細穴加工において、ドリル先端の振れを防止し、精密
穴あけ加工を可能とする積層板の微細穴加工方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for forming microholes in a laminate. More specifically, the present invention relates to a method for drilling fine holes in a laminated board, which prevents the tip of the drill from swinging out and enables precision drilling in the drilling of fine holes for printed wiring boards.
（従来の技術）
近年、電気・電子機器、計算機、通信機器等に広く用い
られてきているプリント配線板については回路構成のフ
ァインパターン化、高密度実装への要請が高まってきて
いる。(Prior Art) In recent years, with regard to printed wiring boards that have been widely used in electrical and electronic equipment, computers, communication equipment, etc., there has been an increasing demand for finer patterning of circuit configurations and high-density packaging.
このため、プリント配線板用の積層板の場合にも、スル
ーホール形成用の穴あけ加工を、たとえば０．８關径を
０．４ ｍｎ径に、さらには０．１關径の穴加工にまで
微細化するという極端な要求まで出るようになってきて
いる。For this reason, even in the case of laminated boards for printed wiring boards, the drilling process for forming through-holes can be changed from, for example, 0.8mm diameter to 0.4mm diameter, or even 0.1mm diameter. There are even extreme demands for miniaturization.
このようなＲ細穴加工への要求の高まりに対応するもの
として、これまでにも０．６ ｒｍ径以上のメインドリ
ルの他に、０．６ｍｍ径以下の極小径ドリルが開発され
、使用されるようになってきている。In response to the increasing demand for R-hole drilling, in addition to the main drill with a diameter of 0.6 rm or more, extremely small diameter drills with a diameter of 0.6 mm or less have been developed and used. It is becoming more and more common.
これらの極小径ドリルには、大きな抗折力を持つように
高靭性の超合金組成からなるもの用いてもいる。These micro-diameter drills are also made of a superalloy composition with high toughness so as to have a large transverse rupture strength.
（発明が解決しようとする課題）
極小径ドリルとしては、０．１〜０．３＋ｕ＋径の平均
抗折力が５００ ｋｇｆ／ｆｉ’以上という優れた特性
のものがこれまでにも実現されてきているが、耐折損性
に優れたものとするために靭性を高めているたつ
め、逆にヤング率が低下し、ドリルの曲げ剛性は弱まっ
ている。このため、これまでの極小径ドリルによる穴加
工においては、六回がりなどによる穴位置精度の低下が
避けられなかった。(Problems to be Solved by the Invention) As extremely small diameter drills, drills with excellent properties such as 0.1 to 0.3+u+ diameter and an average transverse rupture strength of 500 kgf/fi' or more have been realized so far. However, although the toughness has been increased in order to improve breakage resistance, the Young's modulus has decreased and the bending rigidity of the drill has weakened. For this reason, in hole drilling using conventional extremely small diameter drills, a decrease in hole position accuracy due to six turns, etc., was unavoidable.
この欠点を解消するための方策としては、スピンドルチ
ャックによるドリル保持力の増大以外には特に工夫がな
されてきていないのが実情でもある。The reality is that no particular measures have been taken to overcome this drawback other than increasing the holding force of the drill using a spindle chuck.
微細穴加工精度の向上への要求の高まりに対応するため
には、単にドリルを細くして離れた位置のスピンドルに
ドリル保持強度を付加しようとしても、穴加工精度の向
上への実効性はない。第４図に示したように微小径ドリ
ル（ア〉の積層板（イ）穴あけ加工時の回転振れ（つ）
が避けられないからである。In order to respond to the increasing demand for improved precision in micro-hole drilling, simply making the drill thinner and adding strength to hold the drill in a spindle at a distant position is not effective in improving the precision in drilling holes. . As shown in Figure 4, the rotational run-out during drilling of the laminated plate (b) of the micro-diameter drill (a)
This is because it is unavoidable.
また、ドリル先端にダイヤモンドを配設した超硬工具に
よっても、このような振れを防止することはできない。Furthermore, even a carbide tool with a diamond at the tip of the drill cannot prevent such runout.
このため、現状においては、微細穴加工を高精度で行う
ことはほとんど不可能な状況にある。Therefore, at present, it is almost impossible to perform microhole drilling with high precision.
この発明は、以上の通りの事情に鑑みてなされたもので
あり、従来のドリル微細穴加工の欠点を解消し、穴位置
精度を向上させることのできる、ドリル先端防振性に優
れた新しい加工方法を提供することを目的としている。This invention was made in view of the above-mentioned circumstances, and is a new process with excellent vibration isolation properties at the tip of the drill, which can eliminate the drawbacks of conventional drill micro-hole processing and improve hole position accuracy. The purpose is to provide a method.
（課題を解決するための手段）
この発明は、上記の課題を解決するものとして、積層板
の穴加工部裏面に磁石を配置し、磁石の磁力によりドリ
ル先端の振れを抑止することを特徴とする積層板の微細
穴加工方法を提供する。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention is characterized in that a magnet is arranged on the back side of the hole-machined part of the laminate, and the deflection of the tip of the drill is suppressed by the magnetic force of the magnet. The present invention provides a method for forming microholes in a laminate.
（作 用）
この発明のＷ１細穴加工方法においては、積層板式加工
部裏面に配設した磁石の磁力によりドリル先端を真下に
引張るため、ドリル先端の振れを抑止し、所定の穴加工
位置に精度良くドリル先端を当接して穴あけすることか
可能となる。(Function) In the W1 small hole drilling method of the present invention, the tip of the drill is pulled directly downward by the magnetic force of the magnet placed on the back side of the laminated plate type processing part, so the swinging of the tip of the drill is suppressed and the drill tip is placed at the predetermined hole drilling position. It becomes possible to drill holes by touching the tip of the drill with high precision.
この発明の方法は、従来のようにスピンドルチャックの
保持力のみによってドリルの回転振れを抑えるのではな
く、磁力によるドリル先端部を含めての支持により、回
転振れを抑止する。The method of the present invention does not suppress the rotational runout of the drill only by the holding force of the spindle chuck as in the conventional method, but suppresses the rotational runout by supporting the tip of the drill including the drill tip using magnetic force.
以下、添付した図面に沿ってこの発明の加工方法につい
てさらに詳しく説明する。Hereinafter, the processing method of the present invention will be explained in more detail with reference to the attached drawings.
（実施例）
添付した図面の第１図は、この発明の微細穴加工方法の
一例を示したものである。(Example) FIG. 1 of the attached drawings shows an example of the microhole processing method of the present invention.
この例においては、片面もしくは両面金属張積層板、あ
るいは多層板等のプリント配線板用積層板（１）表面の
所定の回路パターン位置で微細穴あけ加工するにあたり
、スピンドルチャック（２〉によって保持した微小径ド
リル（３）の先端（４）を穴あけ位置に向け、かつ、こ
のドリル先＠（４）に対向させて積層板（１）の裏面に
、上部円錐体の磁石（５）の頂部（６）を配置している
。In this example, when drilling fine holes at a predetermined circuit pattern position on the surface of a printed wiring board laminate (1) such as a single-sided or double-sided metal-clad laminate or a multilayer board, a fine hole held by a spindle chuck (2) is used. Point the tip (4) of the small-diameter drill (3) toward the drilling position, and place the top (6) of the upper conical magnet (5) on the back side of the laminate (1), facing the drill tip @ (4). ) are placed.
この磁石（５）の配置により、ドリル先端（４）は、磁
石（５）の磁力線（７）によって真下方向に引張られ、
回転によってドリルが振れることはない。Due to the arrangement of the magnet (5), the drill tip (4) is pulled directly downward by the magnetic lines of force (7) of the magnet (5),
The drill will not swing due to rotation.
この方法におけるドリルは、０．６ ｔｏ以下の微小径
超硬合金製ドリルとすることができ、一般的には、シャ
ンク径が一定で、ドリル径が変わるルーマ形ドリルを用
いることができる。その径は０．３＋１１１径以下とす
ることもできる。The drill used in this method can be a cemented carbide drill with a minute diameter of 0.6 to or less, and generally a lumer-type drill with a constant shank diameter and variable drill diameter can be used. Its diameter can also be less than or equal to 0.3+111 diameter.
ドリルの回転は、たとえば１０．０００〜１００．０Ｏ
ＯｒｐＩｒＩとすることかできる。使用する磁石（５）
についても、ドリル径、ドリル素材、ドリル回転数、さ
らには積層板（１）の種類や厚みによってその種類を選
択することができる。アルニコ系、ＳｍＣｏ系、あるい
はＮｄ−Ｂ系の強磁力の永久磁石、電磁石などを使用す
ることがで、きる。形状を任意とするなめには、Ｓｍ−
Ｃｏ系のプラスチック磁石としてもよい、ドリル（３）
の回転振れを抑止するだけの磁力強度を有する限り、こ
の磁石についての特段の制限はない。The rotation of the drill is, for example, 10.000 to 100.0O.
It can also be OrpIrI. Magnet used (5)
The type can also be selected depending on the drill diameter, drill material, drill rotation speed, and even the type and thickness of the laminate (1). This can be achieved by using strong magnetic permanent magnets, electromagnets, etc. of alnico, SmCo, or Nd-B systems. For licks of arbitrary shape, Sm-
Drill (3) that can be used as a Co-based plastic magnet
There are no particular restrictions on this magnet as long as it has a magnetic strength sufficient to suppress rotational vibration.
たとえば、この第１図に示した方法において、磁石（５
）としてＳｒｎ Ｃｏ磁石を用い、０．２ｍｍ径のド
リルで、回転数２０．０ＯＯｒｐｎの穴あけ加工を行う
と、エポキシ樹脂含浸ガラスクロス基材の４枚と銅箔と
を一体化した両面鋼張積層板を対象とした場合にも穴あ
け位置のズレはなく、極めて精度良く微細穴加工を行う
ことがきる。For example, in the method shown in FIG.
), using a 0.2 mm diameter drill at a rotational speed of 20.0 OOrpn, a double-sided steel clad laminated structure consisting of four sheets of epoxy resin-impregnated glass cloth base material and copper foil was formed. Even when the target is a plate, there is no deviation in the drilling position, and micro-hole drilling can be performed with extremely high accuracy.
積層板の種類についても特に制限はなく、適宜な構成の
ものかこの発明の対象となる。There are no particular restrictions on the type of laminate, and any suitable structure is covered by the present invention.
第２図は、この発明方法の別の実施例を示したものであ
る。積層板（１）の裏面に板状の磁石（５）を配設して
いる。FIG. 2 shows another embodiment of the method of this invention. A plate-shaped magnet (5) is arranged on the back surface of the laminate (1).
また、第３図は、さらに別の実施例を示したものである
。この例においては、第１図に示した錐体状磁石（５）
のほかに、積層板（１）の表面で、ドリル（３）の先端
（４）を囲むように別の磁石（８）を配置してもいる。Moreover, FIG. 3 shows yet another embodiment. In this example, the cone-shaped magnet (5) shown in FIG.
In addition to this, another magnet (8) is arranged on the surface of the laminate (1) so as to surround the tip (4) of the drill (3).
この表面部の磁石（８）は、ドリル（３）の先ｆ＠（４
）に側面から磁力による外力を与え、ドリル先＠（４）
の振れ逃げが生じないようにしている。このようにする
ことにより、ドリル先端（４）の振れ抑止効果はさらに
大きなものとなる。The magnet (8) on this surface is located at the tip f@(4) of the drill (3).
) from the side by applying magnetic force to the drill tip @(4)
This prevents run-out from occurring. By doing so, the effect of suppressing runout of the drill tip (4) becomes even greater.
この磁石（８）は、リング状としてもよい。いずれの形
状においても、磁力線の作用がドリル先端（４）の振れ
を抑止するように磁石の極性を配置すればよい。This magnet (8) may be ring-shaped. In either shape, the polarity of the magnet may be arranged so that the action of the magnetic lines of force suppresses the deflection of the drill tip (4).
もちろん、この発明の方法は以上の例示に限定されるも
のではない。さらに様々な態様が可能であることはいう
までもない。Of course, the method of the present invention is not limited to the above examples. It goes without saying that further various embodiments are possible.
（発明の効果）
この発明の方法により、以上詳しく説明した通り、微小
径ドリルの微細穴加工においても、ドリル先端の振れを
抑止し、穴あけ位置等の精度を高めたｆｉｌｌ細穴加工
が実現される。(Effects of the Invention) As explained in detail above, by the method of the present invention, even in fine hole machining using a minute diameter drill, fill small hole machining can be realized in which run-out of the drill tip is suppressed and accuracy of the drilling position etc. is improved. Ru.
回路ファイン化に向うプリント配線板の高精度製品の製
造にこの発明の方法は大きく貢献する。The method of the present invention will greatly contribute to the production of high-precision printed wiring board products that will lead to finer circuits.
第１図はこの発明の方法の一実旅例を示した側面図であ
る。第２図および第３図は、各々、さらにこの発明の別
の実施例を示した測面図である。
第４図は従来例を示した測面図である。
１・・・積 層 板
２・・・スピンドルチャック
３・・・ド リ ル
４・・・ドリル先端
５・・・磁 石
６・・・頂 部
・・磁
力
線
８・・・磁
石FIG. 1 is a side view showing an example of the method of the present invention. FIGS. 2 and 3 are surface diagrams each showing another embodiment of the present invention. FIG. 4 is a surface measurement diagram showing a conventional example. 1... Laminated plate 2... Spindle chuck 3... Drill 4... Drill tip 5... Magnet 6... Top... Lines of magnetic force 8... Magnet
Claims (2)
力によりドリル先端の振れを抑止することを特徴とする
積層板の微細穴加工方法。(1) A method for drilling fine holes in a laminate, which is characterized by arranging a magnet on the back side of the hole-machined part of the laminate, and using the magnetic force of the magnet to suppress vibration of the tip of the drill.
置する請求項（１）記載の微細穴加工方法。(2) The microhole drilling method according to claim (1), further comprising arranging a pyramidal magnet having an apex facing the tip of the drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27800289A JPH03142114A (en) | 1989-10-25 | 1989-10-25 | Fine hole processing method for laminate board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27800289A JPH03142114A (en) | 1989-10-25 | 1989-10-25 | Fine hole processing method for laminate board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03142114A true JPH03142114A (en) | 1991-06-17 |
Family
ID=17591262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27800289A Pending JPH03142114A (en) | 1989-10-25 | 1989-10-25 | Fine hole processing method for laminate board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03142114A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6134998A (en) * | 1999-04-05 | 2000-10-24 | Loeffler; Fredrick L. | Part positioner and holder for lathes |
| JP2002224907A (en) * | 2001-01-29 | 2002-08-13 | Ibiden Co Ltd | Drilling drill and drilling method |
-
1989
- 1989-10-25 JP JP27800289A patent/JPH03142114A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6134998A (en) * | 1999-04-05 | 2000-10-24 | Loeffler; Fredrick L. | Part positioner and holder for lathes |
| JP2002224907A (en) * | 2001-01-29 | 2002-08-13 | Ibiden Co Ltd | Drilling drill and drilling method |
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