JPH10217199A - Entry board for drill machining - Google Patents
Entry board for drill machiningInfo
- Publication number
- JPH10217199A JPH10217199A JP9236430A JP23643097A JPH10217199A JP H10217199 A JPH10217199 A JP H10217199A JP 9236430 A JP9236430 A JP 9236430A JP 23643097 A JP23643097 A JP 23643097A JP H10217199 A JPH10217199 A JP H10217199A
- Authority
- JP
- Japan
- Prior art keywords
- phenol resin
- lubricant
- copper foil
- drilling
- drill
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明はプリント配線板を製造
する際の、プリント配線板用基板にドリル穴明け加工を
行う工程において、治具板として使用されるエントリー
ボードに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an entry board used as a jig plate in a step of drilling a substrate for a printed wiring board when manufacturing the printed wiring board.
【０００２】[0002]
【従来技術】プリント配線板用基板にドリル穴明け加工
を行う場合に、一般に、次のｉ〜ｖのことが要求され
る。 （ｉ）穴明けされるプリント配線板用基板の表面（ドリ
ル穴明け部以外の表面）に傷を生じさせないこと。 （ｉｉ）ドリル穴明けにおける位置精度が良いこと。 （ｉｉｉ）ドリル加工穴縁部に反り上がりや銅箔バリが
ないこと。 （ｉｖ）ドリル加工穴内壁面が平滑であること。 （ｖ）ドリルの耐久性を損しないこと。2. Description of the Related Art When a drilling process is performed on a substrate for a printed wiring board, the following items i to v are generally required. (I) The surface of the printed wiring board substrate to be drilled (the surface other than the drilled portion) should not be damaged. (Ii) Position accuracy in drilling is good. (Iii) The edge of the drilled hole is free from warpage or copper foil burrs. (Iv) The inner wall surface of the drilled hole is smooth. (V) Do not impair the durability of the drill.
【０００３】上記（ｉ）〜（ｖ）の要求に対し、一般
に、バックアップボードと共にエントリーボードを使用
してドリル穴明け加工が行われている。プリント配線板
用基板にドリル穴明け加工を行う際に用いられるエント
リーボードとして、例えば常温固形の水溶性潤滑剤を多
孔質基材（例えば紙基材）に含浸した潤滑剤入りシート
（以後単に、従来例１と云う）がある（例えば米国特許
明細書第４，７８１，４９５号参照）。また、常温固形
の水溶性潤滑剤を単独で用いた潤滑剤シート（以後単
に、従来例２と云う）がある（例えば特開平０４−９２
４８８号公報、特開平０７−９６４９９公報参照）。更
にまた、常温固形の水溶性潤滑剤シートを金属箔の片面
に貼り合わせた複合シート（以後単に、従来例３と云
う）がある（例えば特開平０４−９２４８８号公報、特
開平０８−１５５８９６号公報参照）。[0003] In response to the above requirements (i) to (v), drilling is generally performed using an entry board together with a backup board. As an entry board used when performing a drilling process on a substrate for a printed wiring board, for example, a lubricant-containing sheet (hereinafter simply referred to as a paper substrate) impregnated with a water-soluble lubricant solid at normal temperature into a porous substrate (eg, a paper substrate) Conventional example 1) (see, for example, U.S. Pat. No. 4,781,495). Further, there is a lubricant sheet (hereinafter simply referred to as Conventional Example 2) using a water-soluble lubricant which is solid at room temperature alone (for example, JP-A-04-92).
488, JP-A-07-96499). Furthermore, there is a composite sheet (hereinafter simply referred to as Conventional Example 3) in which a water-soluble lubricant sheet of a solid at room temperature is bonded to one surface of a metal foil (for example, JP-A-04-92488, JP-A-08-155896). Gazette).
【０００４】[0004]
【従来技術の問題点】 従来例１の潤滑剤入りシートは、その製作が比較的
容易であり、ドリル加工穴内壁面が平滑化し、潤滑剤が
ドリル加工穴内壁面等に付着し（スミア発生し）ても、
その潤滑剤スミアはメッキ処理工程の前工程である水洗
により容易に除去できる等の長所を有するが、ドリル加
工穴縁部の銅箔バリ抑制効果に欠ける問題点がある。ま
たこの潤滑剤入りシートはその保形性に乏しくドリル穴
明け加工するプリント配線板用基板の上に積み重ねる作
業の取扱い性が悪く、その作業の自動化が困難であると
云う問題点もある。 従来例２の潤滑剤シートは、その製作が比較的容易
であり、ドリル加工穴内壁面が平滑化し、潤滑剤がドリ
ル加工穴内壁面等に付着し（スミア発生し）ても、その
潤滑剤スミアはメッキ処理工程の前工程である水洗によ
り容易に除去できる等の長所があるが、ドリル加工穴縁
部の銅箔バリ抑制作用に欠けると云う問題点がある。ま
たこの潤滑剤シートはその保形性に乏しくドリル穴明け
加工されるプリント配線板用基板の上に積み重ねる作業
の取扱い性が悪く、その作業の自動化が困難であると云
う問題点もある。 従来例３の複合シートは、その製作が比較的容易で
あり、ドリル加工穴縁部の銅箔バリの発生を抑制し、ド
リル加工穴内壁面を平滑化し、潤滑剤がドリル加工穴内
壁面等に付着し（スミア発生し）ても、その潤滑剤スミ
アをメッキ処理工程の前工程である水洗により容易に除
去できる等の長所がある。しかしながら、この複合シー
トは、金属箔の厚みとして少なくとも銅箔バリを抑制す
るに必要な程度の厚みにすることが必要であるが、この
程度の金属箔の厚みでは複合シートとしてその保形性に
乏しくドリル穴明けされるプリント配線板用基板の上に
積み重ねる作業の取扱い性に欠け、その作業の自動化が
困難であると云う問題点もある。仮に、複合シートの保
形性を確保するために金属箔の厚みを銅箔バリを抑制す
るに必要な程度の厚み以上に設定すると、金属箔材料コ
ストが上昇し、ドリルの切刃の摩耗が大になると云う問
題が生じる。[Problems of the Prior Art] The lubricant-containing sheet of Conventional Example 1 is relatively easy to manufacture, the inner wall surface of the drilled hole is smoothed, and the lubricant adheres to the inner wall surface of the drilled hole (smear is generated). Even
The lubricant smear has an advantage that it can be easily removed by washing with water, which is a pre-process of the plating process, but has a problem that the effect of suppressing copper foil burrs at the edge of a drilled hole is lacking. Further, this lubricant-containing sheet has a problem in that the shape retention is poor and the workability of stacking on a printed wiring board substrate for drilling is poor, making it difficult to automate the work. The lubricant sheet of Conventional Example 2 is relatively easy to manufacture, and even if the inner wall surface of the drilled hole is smoothed and the lubricant adheres to the inner wall surface of the drilled hole (smearing occurs), the lubricant smear is not removed. It has an advantage that it can be easily removed by washing with water, which is a pre-process of the plating process, but it has a problem that it lacks a copper foil burr suppressing effect at the edge of a drilled hole. Further, this lubricant sheet has a problem in that the shape retention is poor and the workability of stacking on a printed wiring board substrate to be drilled is poor, and it is difficult to automate the work. The composite sheet of Conventional Example 3 is relatively easy to manufacture, suppresses the occurrence of copper foil burrs at the edge of the drilled hole, smoothes the inner wall surface of the drilled hole, and the lubricant adheres to the inner wall surface of the drilled hole. However, there is an advantage that the lubricant smear can be easily removed by washing with water which is a pre-process of the plating process. However, it is necessary for the composite sheet to have a thickness of the metal foil that is at least necessary to suppress copper foil burrs. There is also a problem in that the work of stacking on a poorly drilled printed wiring board substrate is lacking in handleability and it is difficult to automate the work. If the thickness of the metal foil is set to a thickness greater than that necessary to suppress copper foil burrs in order to secure the shape retention of the composite sheet, the cost of the metal foil material will increase, and the wear of the cutting edge of the drill will increase. The problem of getting bigger arises.
【０００５】[0005]
【問題点を解決するための手段】この発明のドリル加工
用エントリーボードは、上記問題点を解決するために、
請求項１記載の加工用エントリーボード（以後単に第一
発明と云う。）は、滑剤を分散させたワニス状フェノー
ル樹脂を紙基材に塗布含浸し、これを乾燥したプリプレ
グシート適宜枚数を重ね合せし、全体を加熱加圧成形す
るようにしたものである。潤滑剤として、高級アルコー
ル又はその誘導体を用いることができる。高級アルコー
ルとしては、例えば炭素数６個以上のステアリン酸・コ
ハク酸などの高級脂肪酸、ステアリン酸鉛、ステアリン
酸亜鉛などの高級脂肪酸と金属の塩である金属石鹸、ワ
ックス等を好適に用いることができる。高級アルコール
誘導体としては、ポリエチレングリコール・ポリグリセ
ロールなどを好適に用いることができる。潤滑剤の使用
量は、フェノール樹脂固形分１００部に対して５〜１０
０部の範囲であり、これを分散させて用いる。それは、
潤滑剤の使用量がフェノール樹脂固形分１００部に対し
て５部以下になると潤滑効果に欠けてドリル穴内壁面を
平滑にできなくなると共に、ドリル先端の切刃部の摩耗
が大となるためであり、また潤滑剤の使用量がフェノー
ル樹脂固形分１００部に対して１００部以上になると、
フェノール樹脂の架橋密度が下がって、加熱加圧成形し
てもその成形品が保形性に欠けるものになり、ドリルの
直進保持性が失われてドリル穴位置精度が悪くなると共
に、ドリル穴縁部の銅箔バリの発生を抑えるための表面
の硬度が足りなくなるためである。請求項２記載のドリ
ル加工用エントリーボード（以後単に第二発明と云
う。）は、潤滑剤を分散させたワニス状フェノール樹脂
を紙基材に塗布含浸し、これを乾燥したプリプレグシー
ト適宜枚数を重ね合せ更にその上に銅箔を積み重ねて、
全体を加熱加圧成形するようにしたものである。換言す
れば、請求項２記載の第二発明は、第一発明のドリル加
工用エントリーボードの片面に銅箔を張り合わせた構成
にしたものであると云うことができます。張り合わされ
た銅箔自身の表面硬度によりドリル穴縁部の反り上がり
や銅箔バリの発生を抑える力が第一発明のドリル穴縁部
の反り上がりや銅箔バリを抑える力より大になる。銅箔
として、その厚みが１０〜５０μｍの範囲にあり且つ外
側に位置する側の面の表面粗さが０．３μｍＲａ（ＪＩ
Ｓ−Ｂ−０６０１に基ずく算術平均粗さを云う）以下の
ものを好敵に用いることができる。それは、張り合わさ
れる銅箔の厚みが１０μｍ以下で且つ銅箔の外側面の表
面粗さが０．３μｍＲａ以上になると、ドリル穴縁部の
銅箔バリの発生を抑制する作用に欠けるようになり、ま
た銅箔の厚みが５０μｍ以上になると、ドリルへの負荷
が大になりドリルの摩耗が大になるためである。[Means for Solving the Problems] The entry board for drilling according to the present invention is intended to solve the above problems.
The processing entry board according to claim 1 (hereinafter simply referred to as the first invention) is obtained by applying and impregnating a varnish-like phenol resin in which a lubricant is dispersed onto a paper base material, and drying and drying the prepreg sheet. Then, the whole is heated and pressed. As a lubricant, a higher alcohol or a derivative thereof can be used. As the higher alcohol, for example, higher fatty acids such as stearic acid and succinic acid having 6 or more carbon atoms, and metal soaps and waxes which are salts of higher fatty acids and metals such as lead stearate and zinc stearate are preferably used. it can. As the higher alcohol derivative, polyethylene glycol / polyglycerol and the like can be preferably used. The amount of the lubricant used is 5 to 10 parts per 100 parts of the phenol resin solids.
It is in the range of 0 parts and is used by dispersing. that is,
If the amount of the lubricant is less than 5 parts with respect to 100 parts of the phenol resin solid content, the lubrication effect is lacking, the inner wall surface of the drill hole cannot be smoothed, and the wear of the cutting edge at the tip of the drill increases. When the amount of the lubricant used is 100 parts or more based on 100 parts of the phenol resin solid content,
The cross-linking density of the phenolic resin decreases, and the molded product lacks shape retention even when heated and pressed, and the straightness of the drill is lost, resulting in poor drill hole position accuracy and the drill hole edge. This is because the hardness of the surface for suppressing the occurrence of copper foil burrs in the portion becomes insufficient. An entry board for drilling according to claim 2 (hereinafter simply referred to as a second invention) is a method in which a varnish-like phenol resin in which a lubricant is dispersed is applied and impregnated on a paper base material, and the prepreg sheet is appropriately dried. Lamination further stack copper foil on it,
The whole is heated and pressed. In other words, the second invention according to claim 2 can be said to be a configuration in which copper foil is adhered to one surface of the drilling entry board of the first invention. Due to the surface hardness of the laminated copper foil itself, the force for suppressing the warpage of the drill hole edge and the generation of the copper foil burr is greater than the force for suppressing the warpage of the drill hole edge and the copper foil burr according to the first invention. As the copper foil, the thickness is in the range of 10 to 50 μm, and the surface on the outer side has a surface roughness of 0.3 μm Ra (JI
The following are referred to as arithmetic average roughness (based on SB-0601). This is because when the thickness of the copper foil to be laminated is 10 μm or less and the surface roughness of the outer surface of the copper foil becomes 0.3 μm Ra or more, the function of suppressing the generation of the copper foil burr at the edge of the drill hole becomes lacking. Also, when the thickness of the copper foil is 50 μm or more, the load on the drill increases, and the wear of the drill increases.
【０００６】[0006]
【作用】この第一発明、第二発明のドリル加工用エント
リーボードは、潤滑剤がフェノール樹脂中に分散含有し
たワニスを紙基材に塗布含浸させた状態で、加熱加圧に
よりフェノール樹脂を反応させて全体を一体化したもの
であるから、このドリル加工用エントリーボードの切り
粉の中の潤滑剤成分がドリルの穿孔による摩擦熱により
反応固化したフェノール樹脂中から溶出してドリルの回
転を潤滑化させてドリル穴内壁面を平滑化するように作
用する。またドリル加工用エントリーボードのプリント
配線板用基板と接する面は、潤滑剤がフェノール樹脂中
に分散含有したワニスを紙基材に塗布含浸させた状態
で、加熱加圧によりフェノール樹脂を反応させて成形し
ながら固化して全体を一体化させた面であるから、この
表面の硬度により銅箔バリの発生を抑制する作用を生じ
るものである。The Entry Board for drilling according to the first and second aspects of the present invention reacts the phenolic resin by heating and pressurizing it while applying and impregnating the paper base material with a varnish in which a lubricant is dispersed and contained in the phenolic resin. The lubrication component in the chips of the drilling entry board elutes from the phenolic resin that has reacted and solidified due to the frictional heat generated by the drilling of the drill, thus lubricating the rotation of the drill. And acts to smooth the inner wall surface of the drill hole. The surface of the entry board for drilling that is in contact with the printed wiring board substrate is prepared by applying and impregnating a varnish containing a lubricant dispersed in a phenol resin onto a paper base material and then heating and pressing the phenol resin. Since the surface is solidified during molding and integrated as a whole, the effect of suppressing the occurrence of copper foil burrs is produced by the hardness of this surface.
【０００７】[0007]
【発明の効果】この発明のドリル加工用エントリーボー
ドは次の効果を奏す。 （１）潤滑剤を使用したドリル加工用エントリーボード
であるが、保形性を有し、潤滑剤を用いない従来のドリ
ル加工用エントリーボードの紙基材フェノール樹脂積層
板と同様の扱い方をすることができるので、扱い方に利
便性がある。 （２）第一発明のドリル加工用エントリーボードは、そ
の切り粉が、従来例１の切り粉のように潤滑剤に紙成分
を含んだ粉体ではなく、また従来例２の切り粉のように
潤滑剤単独の粉体ではなく、潤滑剤がフェノール樹脂中
に均一に分散された混合物に紙成分が含まれた成形物の
粉体となるのであって、ドリル穴明け加工時に発生する
切り粉の中の潤滑剤成分がドリルに付着することが極め
て少なくなり、従来例１や従来例２のようにプリント配
線板用基板のドリルの切り粉の排出に悪影響を及ぼさな
いものとなる。 （３）第一発明のドリル加工用エントリーボードのドリ
ル穴明け加工されるプリント配線板用基板と接する面
が、潤滑剤を分散させたワニス状フェノール樹脂を紙基
材に塗布含浸し、これを乾燥したプリプレグシート適宜
枚数を重ね合せし、全体を加熱加圧成形しながらフェノ
ール樹脂を反応させて固化させた成形面であるから、そ
の表面は平滑な面であり且つ或る程度の硬さを有するも
のであり、従ってドリル穴縁部の反り上がりと銅箔バリ
の発生を抑制する効果を生じる。 （４）第二の発明は、第一の発明の上記（１），（２）
の効果に加えて、銅箔を張り合わせたことにより、銅箔
自身の硬度（バーコール硬さ６５）が作用して上記
（３）の銅箔バリ発生の抑制作用がより大になると云う
効果を生じる。 （５）第一発明、第二の発明のドリル加工用エントリー
ボードは、紙基材フェノール樹脂積層板に潤滑剤を分散
含有させたことにより、反りが少なくなる効果を生じ
る。 以下この発明を実施例・比較例を用いて具体的に説明す
る。The entry board for drilling of the present invention has the following effects. (1) This is an entry board for drilling using a lubricant, but has the same shape as a paper-based phenolic laminate of a conventional entry board for drilling that has shape retention and does not use a lubricant. It is convenient to handle. (2) In the entry board for drilling of the first invention, the chips are not powders containing a paper component in a lubricant as in the chips of the conventional example 1, but they are like the chips of the conventional example 2. Is not a powder of lubricant alone, but a powder of a molded product containing paper components in a mixture of lubricant uniformly dispersed in phenolic resin. The lubricating component in the substrate is extremely unlikely to adhere to the drill, and does not adversely affect the discharge of cutting chips from the drill of the printed wiring board substrate as in Conventional Examples 1 and 2. (3) The surface of the entry board for drilling of the first invention, which is in contact with the printed wiring board substrate to be drilled, is coated and impregnated with a varnish-like phenolic resin in which a lubricant is dispersed, and is impregnated with the paper. An appropriate number of dried prepreg sheets are laminated together, and the entire surface is a molded surface that is reacted and reacted with a phenolic resin while being heated and pressed, so that the surface is smooth and has a certain degree of hardness. Therefore, it has an effect of suppressing the rise of the drill hole edge and the occurrence of copper foil burrs. (4) The second invention is the above (1), (2) of the first invention
In addition to the effect described above, by bonding the copper foil, the hardness of the copper foil itself (Barcol hardness 65) acts to produce the effect that the above-mentioned (3) the effect of suppressing the occurrence of copper foil burrs becomes larger. . (5) The entry boards for drilling of the first and second inventions have an effect of reducing warpage by dispersing and incorporating a lubricant in the paper-based phenolic resin laminate. Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples.
【０００８】[0008]
【実施例１】ポリエチレングリコールをフェノール樹脂
固型分１００部に対し５部分散させた、固型分５０％の
ワニス状フェノール樹脂を坪量２００ｇ／ｍ２のクラフ
ト紙に塗布し、これを乾燥させ樹脂比率４０％のプリプ
レグシートを得た。このプリプレグシート２枚を重ね合
わせ、温度１５０℃・圧力８０ｋｇ／ｃｍ２・時間６０
分の条件で加熱加圧成形して、０．４ｍｍ厚のドリル加
工用エントリーボードを得た。このドリル加工用エント
リーボードの表面硬度をＪＩＳ−Ｋ−６９１１熱硬化性
プラスチックス一般試験方法の５．１６．２項に準拠し
て試験し、その結果を表１に示した。次に、厚み０．２
ｍｍのＦＲ−４プリント配線板用基板を４枚積み重ねた
上に、このドリル加工用エントリーボードを重ね合わせ
て用い、直径０．３ｍｍφのドリルにより回転数７０，
０００ｒｐｍで２０００ショット穴明け加工して、１９
８１ショットから２０００ショットまでの間のドリル加
工穴の銅箔バリ量を４００倍の顕微鏡観察により調べ、
穴壁面の粗さをＪＩＳ−Ｃ−５０１２プリント配線板試
験方法の６．２項に準拠して、最大粗さの平均値及び最
大粗さの最大値を調べ、更にドリル先端の切刃部の摩耗
の程度を４００倍の顕微鏡観察により調べて、その結果
を表１に示した。Example 1 A varnish-like phenol resin having a solid content of 50% in which polyethylene glycol was dispersed in 5 parts per 100 parts of a phenol resin solid was applied to kraft paper having a basis weight of 200 g / m 2 and dried. Then, a prepreg sheet having a resin ratio of 40% was obtained. The two prepreg sheets are superimposed, and the temperature is 150 ° C., the pressure is 80 kg / cm 2, and the time is 60.
Heat and pressure molding was performed under the conditions of minutes to obtain a 0.4 mm thick entry board for drilling. The surface hardness of the drilling entry board was tested in accordance with JIS-K-6911 thermosetting plastics general test method, section 5.16.2, and the results are shown in Table 1. Next, the thickness 0.2
mm FR-4 printed wiring board boards are stacked on top of each other, and this entry board for drilling is superimposed and used.
2,000rpm drilling at 000rpm, 19
The amount of burr of the copper foil in the drilled hole between 81 shots and 2000 shots was checked by microscopic observation of 400 times,
The average roughness of the maximum roughness and the maximum value of the maximum roughness are checked for the roughness of the hole wall surface in accordance with Section 6.2 of the JIS-C-5012 printed wiring board test method. The degree of abrasion was examined under a microscope of 400 times, and the results are shown in Table 1.
【０００９】[0009]
【実施例２】ポリエチレングリコールをフェノール樹脂
固型分に対し１００部分散させた以外は実施例１と同様
の方法でドリル加工用エントリーボードを得た。このド
リル加工用エントリーボードの表面硬度を実施例１と同
様の方法で試験し、その結果を表１に示した。次に、こ
のドリル加工用エントリーボードを用いて実施例１と同
様に加工穴の銅箔バリ量、穴内壁面の最大粗さ、及びド
リル先端の切刃部の摩耗を調べ、その結果を表１に示し
た。Example 2 An entry board for drilling was obtained in the same manner as in Example 1 except that 100 parts of polyethylene glycol was dispersed in the phenol resin solid component. The surface hardness of this drilling entry board was tested in the same manner as in Example 1, and the results are shown in Table 1. Next, using this entry board for drilling, the amount of copper foil burrs in the drilled hole, the maximum roughness of the inner wall surface, and the wear of the cutting edge at the tip of the drill were examined in the same manner as in Example 1. The results are shown in Table 1. It was shown to.
【００１０】[0010]
【実施例３】実施例１で用いたプリプレグを２枚重ね合
わせ、更にその上に、表面粗さＲａ０．３μｍで厚さ１
８μｍの銅箔を積み重ね、これを温度１５０℃圧力８０
ｋｇ／ｃｍ２で６０分間加熱加圧成形して、０．４ｍｍ
厚のドリル加工用エントリーボードを得た。このドリル
加工用エントリーボードの表面硬度を実施例１と同様の
方法で試験し、その結果を表１に示した。次に、このド
リル加工用エントリーボードを用いて実施例１と同様に
加工穴の銅箔バリ量、穴内壁面の最大粗さ、及びドリル
先端の切刃部の摩耗を調べ、その結果を表１に示した。Example 3 Two prepregs used in Example 1 were overlaid, and a surface roughness Ra 0.3 μm and a thickness 1
8 μm copper foil is stacked, and the temperature is 150 ° C. and the pressure is 80
0.4 mm by heating and pressing at 60 kg / cm 2 for 60 minutes
A thick drilling entry board was obtained. The surface hardness of this drilling entry board was tested in the same manner as in Example 1, and the results are shown in Table 1. Next, using this entry board for drilling, the amount of copper foil burrs in the drilled hole, the maximum roughness of the inner wall surface, and the wear of the cutting edge at the tip of the drill were examined in the same manner as in Example 1. The results are shown in Table 1. It was shown to.
【００１１】[0011]
【比較例１】ポリエチレングリコールがフェノール樹脂
固型分に対し０部である以外は実施例１と同様の方法で
ドリル加工用エントリーボードを得た。このドリル加工
用エントリーボードの表面硬度を実施例１と同様の方法
で試験し、その結果を表１に示した。次に、このドリル
加工用エントリーボードを用いて実施例１と同様に加工
穴の銅箔バリ量、穴内壁面の最大粗さ、及びドリル先端
の切刃部の摩耗を調べ、その結果を表１に示した。Comparative Example 1 An entry board for drilling was obtained in the same manner as in Example 1 except that polyethylene glycol was 0 part based on the solid content of the phenol resin. The surface hardness of this drilling entry board was tested in the same manner as in Example 1, and the results are shown in Table 1. Next, using this entry board for drilling, the amount of copper foil burrs in the drilled hole, the maximum roughness of the inner wall surface, and the wear of the cutting edge at the tip of the drill were examined in the same manner as in Example 1. The results are shown in Table 1. It was shown to.
【００１２】[0012]
【比較例２】ポリエチレングリコール５０％の水溶液を
坪量２００ｇ／ｍ２のクラフト紙を２枚重ねを用いて塗
布含浸し、これを乾燥させ樹脂比率４０％のドリル加工
用エントリーボードを得た。このドリル加工用エントリ
ーボードの表面硬度を実施例１と同様の方法で試験し、
その結果を表１に示した。次に、このドリル加工用エン
トリーボードを用いて実施例１と同様に加工穴の銅箔バ
リ量、穴内壁面の最大粗さ、及びドリル先端の切刃部の
摩耗を調べ、その結果を表１に示した。COMPARATIVE EXAMPLE 2 A 50% aqueous solution of polyethylene glycol was applied and impregnated using two layers of kraft paper having a basis weight of 200 g / m 2 and dried to obtain a drilling entry board having a resin ratio of 40%. The surface hardness of this drilling entry board was tested in the same manner as in Example 1,
The results are shown in Table 1. Next, using this entry board for drilling, the amount of copper foil burrs in the drilled hole, the maximum roughness of the inner wall surface, and the wear of the cutting edge at the tip of the drill were examined in the same manner as in Example 1. The results are shown in Table 1. It was shown to.
【００１３】 [0013]
【００１４】表１によれは、この発明のドリル加工用エ
ントリーボードは、銅箔バリの発生が少なく、ドリル加
工穴内壁面の平滑性に優れ、ドリルの切刃の耐摩耗性に
優れるドリル穴明け加工ができることが解る。[0014] According to Table 1, the entry board for drilling of the present invention has little occurrence of copper foil burrs, is excellent in the smoothness of the inner wall surface of the drilled hole, and is excellent in the wear resistance of the cutting edge of the drill. You can see that it can be processed.
Claims (5)
樹脂を紙基材に塗布含浸し、これを乾燥したプリプレグ
シート適宜枚数を重ね合せし、全体を加熱加圧成形して
なるドリル加工用エントリーボード。A varnish-like phenol resin in which a lubricant is dispersed is applied and impregnated on a paper base material, and a suitable number of dried prepreg sheets are laminated, and the whole is heated and pressed to form a drilling entry. board.
樹脂を紙基材に塗布含浸し、これを乾燥したプリプレグ
シート適宜枚数を重ね合せ更にその上に銅箔を積み重ね
て、全体を加熱加圧成形してなるドリル加工用エントリ
ーボード。2. A varnish-like phenolic resin in which a lubricant is dispersed is applied and impregnated on a paper base material, and a suitable number of dried prepreg sheets are laminated, and further, copper foil is laminated thereon, and the whole is heated and pressed. Drilled entry board formed by molding.
０．３μｍＲａ以下であり且つ厚みが１０〜５０μｍで
あることを特徴とする請求項２記載のドリル加工用エン
トリーボード。3. The drilling entry board according to claim 2, wherein the outer surface of the copper foil has a roughness of 0.3 μm Ra or less and a thickness of 10 to 50 μm.
であることを特徴とする請求項１、請求項２、又は請求
項３記載のドリル加工用エントリーボード。4. The drilling entry board according to claim 1, wherein the lubricant is a higher alcohol or a derivative thereof.
に対して５〜１００部分散させたことを特徴とする請求
項１、請求項２、請求項３、又は請求項４記載のドリル
加工用エントリーボード。5. The drilling machine according to claim 1, wherein the lubricant is dispersed in an amount of 5 to 100 parts per 100 parts of the phenol resin solid content. Entry board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23643097A JP4175681B2 (en) | 1996-09-21 | 1997-07-28 | Entry board for drilling |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8-285783 | 1996-09-21 | ||
| JP28578396 | 1996-09-21 | ||
| JP23643097A JP4175681B2 (en) | 1996-09-21 | 1997-07-28 | Entry board for drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10217199A true JPH10217199A (en) | 1998-08-18 |
| JP4175681B2 JP4175681B2 (en) | 2008-11-05 |
Family
ID=26532671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23643097A Expired - Lifetime JP4175681B2 (en) | 1996-09-21 | 1997-07-28 | Entry board for drilling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4175681B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001347493A (en) * | 2000-06-05 | 2001-12-18 | Risho Kogyo Co Ltd | Entry board for drilling |
| JP2005169538A (en) * | 2003-12-09 | 2005-06-30 | Kobe Steel Ltd | Resin coated metal plate for use in drilling printed circuit board |
| JP5094380B2 (en) * | 2005-01-31 | 2012-12-12 | Ｐｓジャパン株式会社 | Auxiliary plate material for drilling and cutting workpieces, and molded products using the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029169B (en) * | 2012-12-21 | 2016-01-20 | 深圳市柳鑫实业股份有限公司 | A kind of boring blind flange of PCB and manufacture method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58110247A (en) * | 1981-12-25 | 1983-06-30 | 住友ベークライト株式会社 | Manufacture of laminated board |
| JPH04122506A (en) * | 1990-09-10 | 1992-04-23 | Nippon Kemu Tec Kk | Drilling presser plate and drilling method |
| JPH05169400A (en) * | 1991-12-18 | 1993-07-09 | Mitsubishi Gas Chem Co Inc | Lubricant sheet for small boring |
| JPH08290396A (en) * | 1995-04-18 | 1996-11-05 | Risho Kogyo Co Ltd | Backup board for drilling |
-
1997
- 1997-07-28 JP JP23643097A patent/JP4175681B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58110247A (en) * | 1981-12-25 | 1983-06-30 | 住友ベークライト株式会社 | Manufacture of laminated board |
| JPH04122506A (en) * | 1990-09-10 | 1992-04-23 | Nippon Kemu Tec Kk | Drilling presser plate and drilling method |
| JPH05169400A (en) * | 1991-12-18 | 1993-07-09 | Mitsubishi Gas Chem Co Inc | Lubricant sheet for small boring |
| JPH08290396A (en) * | 1995-04-18 | 1996-11-05 | Risho Kogyo Co Ltd | Backup board for drilling |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001347493A (en) * | 2000-06-05 | 2001-12-18 | Risho Kogyo Co Ltd | Entry board for drilling |
| US6565295B2 (en) | 2000-06-05 | 2003-05-20 | Risho Kogyo Co., Ltd. | Entry board for drilling |
| KR100814048B1 (en) * | 2000-06-05 | 2008-03-18 | 리쇼 고교 가부시키가이샤 | Entry board for drilling |
| JP2005169538A (en) * | 2003-12-09 | 2005-06-30 | Kobe Steel Ltd | Resin coated metal plate for use in drilling printed circuit board |
| JP4551654B2 (en) * | 2003-12-09 | 2010-09-29 | 株式会社神戸製鋼所 | Resin-coated metal plate used for drilling printed circuit boards |
| JP5094380B2 (en) * | 2005-01-31 | 2012-12-12 | Ｐｓジャパン株式会社 | Auxiliary plate material for drilling and cutting workpieces, and molded products using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4175681B2 (en) | 2008-11-05 |
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