JP2008222762A - Entry sheet for drilling - Google Patents
Entry sheet for drilling Download PDFInfo
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- JP2008222762A JP2008222762A JP2007059694A JP2007059694A JP2008222762A JP 2008222762 A JP2008222762 A JP 2008222762A JP 2007059694 A JP2007059694 A JP 2007059694A JP 2007059694 A JP2007059694 A JP 2007059694A JP 2008222762 A JP2008222762 A JP 2008222762A
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- drilling
- weight
- graphite
- entry sheet
- copper
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- 238000005553 drilling Methods 0.000 title claims abstract description 50
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000011342 resin composition Substances 0.000 claims abstract description 23
- 239000000314 lubricant Substances 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 36
- 239000010439 graphite Substances 0.000 claims description 28
- 239000011888 foil Substances 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000006230 acetylene black Substances 0.000 claims description 4
- 229910021383 artificial graphite Inorganic materials 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 229910021382 natural graphite Inorganic materials 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000011094 fiberboard Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 8
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 26
- -1 laminate Substances 0.000 description 17
- 229910052782 aluminium Inorganic materials 0.000 description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 13
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 8
- 239000004593 Epoxy Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000010408 film Substances 0.000 description 7
- 238000004804 winding Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000805 composite resin Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- FFJCNSLCJOQHKM-CLFAGFIQSA-N (z)-1-[(z)-octadec-9-enoxy]octadec-9-ene Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCCCCCCC\C=C/CCCCCCCC FFJCNSLCJOQHKM-CLFAGFIQSA-N 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- MMQZBEXYFLXHEN-UHFFFAOYSA-N OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.CCCCCCCCCCCCCCCCCC(O)=O Chemical compound OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO.CCCCCCCCCCCCCCCCCC(O)=O MMQZBEXYFLXHEN-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920002114 octoxynol-9 Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 description 1
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Drilling And Boring (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
本発明は、プリント配線板の製造工程において、両面銅張積層板や多層板などの銅張積層板をドリル孔明け加工する際に使用されるドリル孔明け用エントリーシートに関するものである。 The present invention relates to an entry sheet for drilling used in drilling a copper-clad laminate such as a double-sided copper-clad laminate or a multilayer board in a manufacturing process of a printed wiring board.
プリント配線板材料に使用される両面銅張積層板や多層板のドリル孔明け加工方法としては、銅張積層板を重ね、その最上部にアルミニウム箔等のエントリーシートを配置し、ドリル孔明け加工を行う方法が一般的に採用されている。プリント配線板材料に対する信頼性向上の要求や高密度化の進展に伴い、孔位置精度の向上や孔壁粗さの低減など高品質の孔明け加工が求められており、これに対応するために、ポリエチレングリコールのシートをエントリーシートに使用した孔明け加工法（例えば特許文献１参照）、金属箔に水溶性樹脂層を形成した孔明け用滑剤シート（例えば特許文献２参照）、熱硬化性樹脂薄膜を形成したアルミニウム箔に水溶性樹脂層を形成した孔明け用エントリーシート（例えば特許文献３参照）などが提案・実用化されている。近年、ドリルの小径化が更に進み、量産レベルで穴径0.1〜0.075mm、試作レベルでは0.050mmのドリルも登場してきており、これに伴い、必要とされる孔位置精度の要求も厳しくなり、さらに高孔位置精度加工が可能となるエントリーシートが切望されている。孔位置精度が向上することで、後工程のパターン形成において製品の歩留まりが向上する。 As a drilling method for double-sided copper-clad laminates and multilayer boards used for printed wiring board materials, the copper-clad laminates are stacked, and an entry sheet such as aluminum foil is placed on the top to drill holes. The method of performing is generally adopted. To meet the demands for improving the reliability and increasing the density of printed wiring board materials, high-quality drilling is required, such as improving hole position accuracy and reducing hole wall roughness. , A drilling method using a polyethylene glycol sheet as an entry sheet (see, for example, Patent Document 1), a drilling lubricant sheet in which a water-soluble resin layer is formed on a metal foil (see, for example, Patent Document 2), a thermosetting resin An entry sheet for punching (for example, see Patent Document 3) in which a water-soluble resin layer is formed on an aluminum foil having a thin film has been proposed and put to practical use. In recent years, drill diameters have been further reduced, drills with a hole diameter of 0.1 to 0.075 mm at the mass production level and 0.050 mm at the prototype level have also appeared. Furthermore, an entry sheet that enables high hole position accuracy processing is desired. By improving the hole position accuracy, the yield of the product is improved in pattern formation in a later process.
本発明の目的は、従来技術における上記した課題を解決する、両面銅張積層板や多層板などの銅張り積層板のドリル孔孔明け加工において、優れた孔位置精度が得られるドリル孔明け用エントリーシートを提供するものである。 The object of the present invention is to solve the above-mentioned problems in the prior art, and to provide excellent hole position accuracy in drilling of copper-clad laminates such as double-sided copper-clad laminates and multilayer boards. An entry sheet is provided.
本発明者らはドリル孔明け用エントリーシートの滑剤効果について鋭意研究を重ねた結果、水溶性樹脂と水溶性滑剤との混合物に、熱伝導性が高く、また廃棄時の燃焼で残渣が残らない固形の粉体で、潤滑性ある炭素粉を混合した樹脂組成物を用いることでドリル孔明け用エントリーシートとしての孔位置精度の向上とドリルへの樹脂巻き付きの低減が得られる事を見出した。 As a result of intensive research on the lubricant effect of the entry sheet for drilling, the inventors have high thermal conductivity in the mixture of the water-soluble resin and the water-soluble lubricant, and no residue remains due to combustion at the time of disposal. It was found that by using a resin composition in which solid carbon powder mixed with lubricating carbon powder is used, improvement in hole position accuracy as a drill hole entry sheet and reduction in resin winding around the drill can be obtained.
即ち本発明は、重量平均分子量10,000〜200,000の水溶性樹脂20〜90重量%と水溶性滑剤80〜10重量%との混合物に、更に、該混合物100重量部に対し、炭素粉を5〜150重量部混合した樹脂組成物を含む、銅張積層板のドリル孔明け用エントリーシートであり、好ましくは、厚さ0.005mm〜0.5mmの該樹脂組成物の層を、厚さ0.05〜0.5mmの金属箔、ファイバーボード、積層板、プラスチック板に直接、または接着剤を用いて積層一体化して形成した、銅張積層板のドリル孔明け用エントリーシートであり、更に好ましくは該炭素粉が、天然黒鉛、人造黒鉛、活性炭、アセチレンブラック、カーボンブラック、コロイド黒鉛、熱分解黒鉛、膨張化黒鉛、鱗片状黒鉛からなる群より選ばれる１種、または２種以上である事を特徴とするドリル孔明け用エントリーシートである。 That is, the present invention relates to a mixture of 20 to 90% by weight of a water-soluble resin having a weight average molecular weight of 10,000 to 200,000 and 80 to 10% by weight of a water-soluble lubricant, and further, 5 to 150% of carbon powder is added to 100 parts by weight of the mixture. An entry sheet for drilling a copper-clad laminate comprising a resin composition mixed in parts by weight, preferably a layer of the resin composition having a thickness of 0.005 mm to 0.5 mm and a thickness of 0.05 to 0.5 mm An entry sheet for drilling a copper-clad laminate, which is formed directly on a metal foil, fiber board, laminate, plastic plate, or laminated using an adhesive, and more preferably the carbon powder is natural Drill holes characterized by being one or more selected from the group consisting of graphite, artificial graphite, activated carbon, acetylene black, carbon black, colloidal graphite, pyrolytic graphite, expanded graphite, and flake graphite For entry sheet That.
本発明のドリル孔明け用エントリーシートを使用する事で、従来技術と比較してドリル加工において高い孔位置精度が得られ、ドリルへの樹脂巻き付きも減少した。 By using the drill drilling entry sheet of the present invention, high hole position accuracy was obtained in drilling as compared with the prior art, and resin wrapping around the drill was also reduced.
本発明は、重量平均分子量10,000〜200,000の水溶性樹脂20〜90重量%と水溶性滑剤80〜10重量%との混合物に、更に、該混合物100重量部に対し、炭素粉を5〜150重量部混合した樹脂組成物を含む、銅張積層板のドリル孔明け用エントリーシートであり、厚さ0.005mm〜0.5mmの該樹脂組成物の層を、厚さ0.05〜0.5mmの金属箔、ファイバーボード、積層板、プラスチック板に直接、または接着剤を用いて積層一体化して形成したドリル孔明け用エントリーシートであり、該炭素粉が、天然黒鉛、人造黒鉛、活性炭、アセチレンブラック、カーボンブラック、コロイド黒鉛、熱分解黒鉛、膨張化黒鉛、鱗片状黒鉛からなる群より選ばれる１種、または２種以上であるドリル孔明け用エントリーシートである。 The present invention relates to a mixture of 20 to 90% by weight of a water-soluble resin having a weight average molecular weight of 10,000 to 200,000 and 80 to 10% by weight of a water-soluble lubricant, and further 5 to 150% of carbon powder with respect to 100 parts by weight of the mixture. An entry sheet for drilling a copper-clad laminate comprising a resin composition mixed in part, and a layer of the resin composition having a thickness of 0.005 mm to 0.5 mm, a metal foil and a fiber having a thickness of 0.05 to 0.5 mm It is an entry sheet for drilling formed directly on a board, laminated board, plastic board or laminated using an adhesive, and the carbon powder is natural graphite, artificial graphite, activated carbon, acetylene black, carbon black, An entry sheet for drilling that is one or more selected from the group consisting of colloidal graphite, pyrolytic graphite, expanded graphite, and flake graphite.
本発明において水溶性樹脂とは、常温、常圧において、水１００ｇに対し、１ｇ以上溶解する高分子化合物であれば、特に限定されない。好適なものとしては、ポリエチレンオキサイド、ポリプロピレンオキサイド、ポリビニルアルコール、ポリアクリル酸ソーダ、ポリアクリルアミド、ポリビニルピロリドン、カルボキシメチルセルロース、ポリテトラメチレングリコール、ポリエーテルエステル、ポリビニルアルコールが挙げられ、１種あるいは２種以上を適宜混合して使用することも可能である。本発明に使用する水溶性樹脂の重量平均分子量は10,000〜200,000の範囲が望ましい。重量平均分子量が10,000未満ではドリル加工時の抵抗が小さすぎ、また200,000を超えるとドリル加工時の抵抗が大きくなり、いずれも孔位置精度の悪化をもたらす。 In the present invention, the water-soluble resin is not particularly limited as long as it is a polymer compound that dissolves 1 g or more in 100 g of water at normal temperature and normal pressure. Preferable examples include polyethylene oxide, polypropylene oxide, polyvinyl alcohol, sodium polyacrylate, polyacrylamide, polyvinyl pyrrolidone, carboxymethyl cellulose, polytetramethylene glycol, polyether ester, and polyvinyl alcohol. It is also possible to mix them as appropriate. The weight average molecular weight of the water-soluble resin used in the present invention is preferably in the range of 10,000 to 200,000. When the weight average molecular weight is less than 10,000, the resistance at the time of drilling is too small, and when it exceeds 200,000, the resistance at the time of drilling increases.
ドリル孔明け加工時に潤滑効果を高めるため、該水溶性樹脂に水溶性滑剤を併用する事が好ましい。水溶性滑剤とは界面の摩擦による抵抗を現象させる効果のある滑剤のうち、水に可溶なものである。好適に併用される水溶性滑剤としては、具体的には、ポリエチレングリコール、ポリプロピレングリコール；ポリオキシエチレンオレイルエーテル、ポリオキシエチレンセチルエーテル、ポリオキシエチレンステアリルエーテル、ポリオキシエチレンラウリルエーテル、ポリオキシエチレンノニルフェニルエーテル、ポリオキシエチレンオクチルフェニルエーテルなどで例示されるポリオキシエチレンのモノエーテル類；ポリオキシエチレンモノステアレート、ポリオキシエチレンソルビタンモノステアレート；ヘキサグリセリンモノステアレート、デカヘキサグリセリンモノステアレートなどで例示されるポリグリセリンモノステアレート類；ポリオキシエチレンプロピレン共重合体などが挙げられ、１種もしくは２種以上を適宜配合して使用することも可能である。 In order to enhance the lubrication effect during drilling, it is preferable to use a water-soluble lubricant in combination with the water-soluble resin. The water-soluble lubricant is one that is soluble in water among the lubricants that have the effect of causing resistance due to friction at the interface. Specific examples of suitable water-soluble lubricants include polyethylene glycol, polypropylene glycol; polyoxyethylene oleyl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene lauryl ether, polyoxyethylene nonyl. Polyoxyethylene monoethers exemplified by phenyl ether, polyoxyethylene octylphenyl ether, etc .; polyoxyethylene monostearate, polyoxyethylene sorbitan monostearate; hexaglycerin monostearate, decahexaglycerin monostearate, etc. Polyglycerin monostearates exemplified by the above; polyoxyethylene propylene copolymers and the like, and one or two or more kinds may be appropriately blended It is also possible to use.
本発明に用いる炭素粉とは、熱伝導性が高く、廃棄時の燃焼で残渣が残らない固体で粉体の、潤滑性がある炭素粉であれば特に限定しないが、天然黒鉛、人造黒鉛、活性炭、アセチレンブラック、カーボンブラック、コロイド黒鉛、熱分解黒鉛、膨張化黒鉛、鱗辺状黒鉛が好ましい。その形状や、粒径により、ドリルビットの寿命や巻き付きの減少度合いや、孔位置精度向上への効果が多少異なるが、選択して使用できる。鱗片状黒鉛は、より効果的に孔明け性能の向上を図ることができるので好適である。炭素粉は１種を単独で用いても、２種以上を混合して用いてもよい。ドリル孔明け用エントリーシート使用後の廃棄、燃焼時に残渣が残らない事が、特に金属箔と一体化したドリル孔明け用エントリーシートの場合に金属リサイクルが容易となる。 The carbon powder used in the present invention is not particularly limited as long as it is a solid, powdery, lubricating carbon powder that has high thermal conductivity and does not leave a residue upon combustion at the time of disposal, but natural graphite, artificial graphite, Activated carbon, acetylene black, carbon black, colloidal graphite, pyrolytic graphite, expanded graphite, and scale-like graphite are preferred. Depending on the shape and particle diameter, the life of the drill bit, the degree of reduction in winding, and the effect of improving the hole position accuracy are slightly different, but they can be selected and used. Scaly graphite is suitable because it can improve the drilling performance more effectively. Carbon powder may be used individually by 1 type, or 2 or more types may be mixed and used for it. It is easy to recycle metal, especially in the case of an entry sheet for drilling integrated with a metal foil, that no residue remains after disposal and combustion after using the drilling entry sheet.
該樹脂組成物は、重量平均分子量10,000〜200,000の水溶性ポリマー20〜90重量％と、水溶性滑剤80〜10重量％との混合物に、該混合物100重量部に対し、5〜150重量部の炭素粉を混合して得るのが好ましい。また樹脂組成物中に各種添加剤も使用可能であり、各種充填剤や、染料、着色顔料等が目的に合わせて用いられる。 The resin composition is used in a mixture of 20 to 90% by weight of a water-soluble polymer having a weight average molecular weight of 10,000 to 200,000 and 80 to 10% by weight of a water-soluble lubricant, and 5 to 150 parts by weight with respect to 100 parts by weight of the mixture. It is preferable to obtain by mixing carbon powder. Various additives can also be used in the resin composition, and various fillers, dyes, coloring pigments and the like are used in accordance with the purpose.
該樹脂組成物の混合方法は公知のニーダーやロールを用いた混練り、該樹脂組成物の成分を、水またはアルコール等の溶媒に溶かした後に溶媒を乾燥させる方法がある。混合物からシートを形成する方法には、押し出し機を用いる方法や、フィルムなどに塗工して後にフィルムと分離する方法などがある。 The mixing method of the resin composition includes kneading using a known kneader or roll, and dissolving the components of the resin composition in a solvent such as water or alcohol and then drying the solvent. As a method for forming a sheet from a mixture, there are a method using an extruder, a method of coating on a film and the like, and a method of separating from a film later.
本発明のドリル孔明け用エントリーシートにおける樹脂組成物層の厚みは、ドリル孔明け加工の際に使用するドリルビット径や加工する両面銅張積層板や多層板の構成などによって選択されるが、通常、5〜250μｍの範囲が好ましく、10〜200μｍの範囲がより好ましい。樹脂組成物層の厚みが、5μｍ未満では十分な潤滑効果が得られにくい。 The thickness of the resin composition layer in the drill hole entry sheet of the present invention is selected depending on the drill bit diameter used in the drilling process, the structure of the double-sided copper-clad laminate or multilayer board to be processed, etc. Usually, the range of 5 to 250 μm is preferable, and the range of 10 to 200 μm is more preferable. When the thickness of the resin composition layer is less than 5 μm, it is difficult to obtain a sufficient lubricating effect.
本発明のドリル孔明け用エントリーシートに好ましく使用される金属箔としては、厚み50〜300μｍのアルミ箔が好ましい。アルミニウム箔の厚みが50μｍ未満ではドリル孔明け加工の際、銅張積層板や多層板にバリが発生し易く、300μｍを超えると、ドリル孔明け加工時に発生する切り粉の排出が困難になる。アルミニウム箔の材質としては、純度95％以上のアルミニウムがより好ましく、具体的にはＪＩＳＨ４１６０に規定される、５０５２、３００４、３００３、１Ｎ３０、１０５０、１０７０、１０８５などが例示される。金属箔に高純度のアルミニウム箔を使うことでドリルビットの衝撃の緩和や食いつき性が向上し、樹脂組成物層によるドリルビットの潤滑効果と相俟って、加工孔の孔位置精度が向上する。また、これらアルミニウム箔に、予め厚さ0.1〜10μｍの接着用皮膜が形成されているアルミニウム箔の使用が樹脂組成物との密着性の点から更に好ましい。接着用皮膜に使用される接着剤としては、ウレタン系、酢酸ビニル系、塩化ビニル系、ポリエステル系及びそれらの共重合体や、エポキシ系、シアネート系などの接着剤が例示される。 As the metal foil preferably used in the drill hole entry sheet of the present invention, an aluminum foil having a thickness of 50 to 300 μm is preferable. If the aluminum foil thickness is less than 50 μm, burrs are likely to occur in the copper-clad laminate or multilayer board during drilling, and if it exceeds 300 μm, it becomes difficult to discharge chips generated during drilling. As the material of the aluminum foil, aluminum having a purity of 95% or more is more preferable, and specifically, 5052, 3004, 3003, 1N30, 1050, 1070, 1085, etc. defined in JISH4160 are exemplified. By using high-purity aluminum foil for metal foil, the impact and biting of the drill bit are reduced, and the drill bit lubrication effect by the resin composition layer improves the accuracy of the hole position of the processed hole. . Moreover, it is more preferable from the point of adhesiveness with a resin composition to use the aluminum foil by which the film for adhesion of thickness 0.1-10 micrometers was previously formed in these aluminum foil. Examples of the adhesive used for the adhesive film include urethane-based, vinyl acetate-based, vinyl chloride-based, polyester-based and copolymers thereof, and epoxy-based and cyanate-based adhesives.
金属箔の少なくとも片面に該樹脂組成物層を形成させる方法としては、予め該樹脂組成物のシートを作製した後、金属箔と貼り合わせて金属箔複合樹脂組成物としてのドリル孔明け用エントリーシートとする方法や、金属箔の少なくとも片面に直接樹脂組成物の融解物や溶液をコーティング法などにより塗工し、必要に応じて乾燥し、金属箔複合樹脂組成物としてのドリル孔明け用エントリーシートとする方法などが例示される。 As a method for forming the resin composition layer on at least one surface of the metal foil, after preparing a sheet of the resin composition in advance, it is bonded to the metal foil and drilled as a metal foil composite resin composition. Or by applying a melt or solution of the resin composition directly on at least one side of the metal foil by a coating method, etc., and drying as necessary, as an entry sheet for drilling holes as a metal foil composite resin composition The method etc. which are made are illustrated.
本発明のドリル孔明け用エントリーシートは、プリント配線板材料、具体的には、両面銅張積層板や多層板などの銅張積層板をドリル孔明け加工する際、両面銅張積層板や多層板を１枚または複数枚重ねたものの少なくとも最上面に、両面銅張積層板や多層板と接するように配置し、ドリル孔明け用エントリーシートの樹脂組成物層面から、ドリル孔明け加工を行うものである。以下に実施例、比較例を示し、本発明を具体的に説明する。 The drill punching entry sheet of the present invention is a printed wiring board material, specifically, a double-sided copper-clad laminate or multilayer when drilling a copper-clad laminate such as a double-sided copper-clad laminate or multilayer board. One or more stacked plates are placed on at least the uppermost surface in contact with a double-sided copper-clad laminate or multilayer plate, and drilled from the resin composition layer surface of the drilling entry sheet It is. Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples.
(実施例１）
重量平均分子量15万(GPC法で測定）のポリエチレンオキサイド35重量部、重量平均分子量900(GPC法で測定)のポリオキシエチレンモノステアレート65重量部とを130℃のニーダーにより窒素ガス中で１時間混練し15万ポイズの混合物を得た。これに鱗片状黒鉛（伊藤黒鉛株式会社、品名Ｘ−１０）を、上記有機成分100重量部に対して30、60重量部を加え、100℃のニーダーにより30分混練した後、100℃の押し出し機にて厚さ100μmのシートを形成し、鱗片状黒鉛30重量部のドリル孔明け用エントリーシート1と鱗片状黒鉛60重量部のドリル孔明け用エントリーシート２を作製した。厚さ0.20mm、両面12μm銅張ガラスエポキシ積層板を8枚重ねた上にドリル孔明け用エントリーシートの1,2をそれぞれ配置して直径0.2mmのドリルビット（ユニオンツール製ＭＶ0.2×3.5）で回転数160,000rpm、送り20μm/revの条件でドリル１本につき3000ヒットのドリル孔明け加工（日立ビアメカニクス製装置）を行った。同様にドリル２０本分の加工を行った。孔位置精度とドリルへの樹脂巻き付き度合いの結果を表１に示した。
Example 1
35 parts by weight of polyethylene oxide with a weight average molecular weight of 150,000 (measured by the GPC method) and 65 parts by weight of polyoxyethylene monostearate with a weight average molecular weight of 900 (measured by the GPC method) are added in nitrogen gas by a 130 ° C kneader. The mixture was kneaded for 1 hour to obtain a 150,000 poise mixture. To this, flaky graphite (Ito Graphite Co., Ltd., product name X-10) was added 30 or 60 parts by weight with respect to 100 parts by weight of the organic component, kneaded for 30 minutes with a 100 ° C. kneader, and then extruded at 100 ° C. A sheet having a thickness of 100 μm was formed by a machine, and an entry sheet 1 for drilling 30 parts by weight of flaky graphite and an entry sheet 2 for drilling 60 parts by weight of flaky graphite were produced. A drill bit (union tool MV0.2 × 3.5) with a diameter of 0.20mm by placing 1 and 2 of drilling entry sheets on 8 sheets of 0.20mm thick double-sided 12μm copper-clad glass epoxy laminates. ), A drilling process of 3000 hits per drill (Hitachi Via Mechanics equipment) was performed under the conditions of a rotation speed of 160,000 rpm and a feed of 20 μm / rev. Similarly, processing for 20 drills was performed. The results of the hole position accuracy and the degree of resin wrapping around the drill are shown in Table 1.
（実施例２）
重量平均分子量11万(GPC法で測定)のポリエチレングリコール50重量部、重量平均分子量1000(GPC法で測定)のポリオキシエチレンモノステアレート50重量部と、鱗片状黒鉛（伊藤黒鉛株式会社、品名Ｘ−１０）30、60重量部を、140℃のニーダーにより、１時間混練りして150度で10万ポイズの混合物を得た。これを水で溶解して50重量%の水溶液として80μm厚のアルミニウム箔の片面に塗布、乾燥して厚さ30μmの膜を形成し、ドリル孔明け用エントリーシート3，4を作製した。厚さ0.10mm、両面12μm銅張ガラスエポキシ積層板を3枚重ねた上に、ドリル孔明け用エントリーシート3，4の樹脂組成物層を上にしてそれぞれ配置して直径0.1mmのドリルビット（ユニオンツール製ＫＭＶ0.105×1.5）で回転数300,000rpm、送り10μm/revの条件でドリル１本につき3000ヒットのドリル孔明け加工（日立ビアメカニクス製装置）を行った。同様にドリル２０本分の加工を行った。孔位置精度とドリルへの樹脂巻き付き度合いの結果を表２に示した。
(Example 2)
50 parts by weight of polyethylene glycol having a weight average molecular weight of 110,000 (measured by GPC method), 50 parts by weight of polyoxyethylene monostearate having a weight average molecular weight of 1000 (measured by GPC method), and flake graphite (Ito Graphite Co., Ltd., product name) X-10) 30 and 60 parts by weight were kneaded with a 140 ° C. kneader for 1 hour to obtain a mixture of 100,000 poise at 150 degrees. This was dissolved in water and applied as an aqueous solution of 50% by weight to one side of an 80 μm thick aluminum foil and dried to form a 30 μm thick film, thereby producing entry sheets 3 and 4 for drilling. Drill bit (0.1mm in diameter) by placing three 0.10mm thick, 12μm double-sided copper-clad glass epoxy laminates on top of each other and placing the resin composition layers of drilling entry sheets 3 and 4 on top. With a tool of union tool KMV0.105 × 1.5), drilling of 3,000 hits per drill (Hitachi Via Mechanics equipment) was performed under the conditions of 300,000 rpm rotation and 10 μm / rev feed. Similarly, processing for 20 drills was performed. The results of the hole position accuracy and the degree of resin wrapping around the drill are shown in Table 2.
（実施例３）
重量平均分子量15万(GPC法で測定)のポリエチレンオキサイド35重量部、重量平均分子量900(GPC法で測定)のポリオキシエチレンモノステアレート65重量部とを130℃のニーダーにより窒素ガス中で１時間混練し15万ポイズの混合物を得た。これに鱗片状黒鉛（伊藤黒鉛株式会社、品名Ｘ−１０）と塊状黒鉛（伊藤黒鉛株式会社、品名ＳＲＰ９８−６）の重量比で1:1の混合物を、上記有機成分100重量部に対して30、60重量部を加え、100℃のニーダーにより30分混練し、アルミ箔の片面に塗布して厚さ100μmの膜を形成し、ドリル孔明け用エントリーシート5，6を作製した。厚さ0.20mm、両面12μm銅張ガラスエポキシ積層板を8枚重ねた上にドリル孔明け用エントリーシート5,6の樹脂組成物層を上にしてそれぞれ配置して実施例１と同様にしてドリル孔明け加工を行った。孔位置精度とドリルへの樹脂巻き付き度合いの結果を表３に示した。
(Example 3)
35 parts by weight of polyethylene oxide having a weight average molecular weight of 150,000 (measured by the GPC method) and 65 parts by weight of polyoxyethylene monostearate having a weight average molecular weight of 900 (measured by the GPC method) are added in nitrogen gas by a 130 ° C. kneader. The mixture was kneaded for 1 hour to obtain a 150,000 poise mixture. To this, a 1: 1 mixture of scaly graphite (Ito Graphite Co., Ltd., product name X-10) and lump graphite (Ito Graphite Co., Ltd., product name SRP98-6) was added to 100 parts by weight of the organic component. 30 and 60 parts by weight were added, kneaded with a 100 ° C. kneader for 30 minutes, and applied to one side of an aluminum foil to form a film having a thickness of 100 μm, thereby producing entry sheets 5 and 6 for drilling. Drill in the same manner as in Example 1 by placing 8 sheets of 0.20mm thick double-sided 12μm copper-clad glass epoxy laminates on top of each other and placing the resin composition layers of drilling entry sheets 5 and 6 on top. Drilling was performed. The results of the hole position accuracy and the degree of resin wrapping around the drill are shown in Table 3.
（比較例１）
重量平均分子量15万(GPC法で測定)のポリエチレンオキサイド35重量部、重量平均分子量900(GPC法で測定)のポリオキシエチレンモノステアレート65重量部とを130℃のニーダーにより窒素ガス中で１時間混練し15万ポイズの混合物を得た。鱗片状黒鉛（伊藤黒鉛株式会社、品名Ｘ−１０）を加えず、100℃のニーダーにより30分混練した後、100℃の押し出し機にて厚さ100μmのシートを形成し、ドリル孔明け用エントリーシート７を作製した。厚さ0.20mm、両面12μm銅張ガラスエポキシ積層板を8枚重ねた上にこのエントリーシート７を重ね、実施例１と同様にしてドリル孔明け加工を行った。孔位置精度とドリルへの樹脂巻き付き度合いの結果を表１に示した。
(Comparative Example 1)
35 parts by weight of polyethylene oxide having a weight average molecular weight of 150,000 (measured by the GPC method) and 65 parts by weight of polyoxyethylene monostearate having a weight average molecular weight of 900 (measured by the GPC method) are added in nitrogen gas by a 130 ° C. kneader. The mixture was kneaded for 1 hour to obtain a 150,000 poise mixture. After adding kneaded graphite (Ito Graphite Co., Ltd., product name X-10), kneading with a 100 ° C kneader for 30 minutes, forming a 100 µm thick sheet with a 100 ° C extruder and entering for drilling Sheet 7 was produced. This entry sheet 7 was stacked on 8 sheets of 0.20 mm thick double-sided 12 μm copper-clad glass epoxy laminates, and drilling was performed in the same manner as in Example 1. The results of the hole position accuracy and the degree of resin wrapping around the drill are shown in Table 1.
（比較例２）
重量平均分子量11万(GPC法で測定)のポリエチレングリコール50重量部、重量平均分子量1000(GPC法で測定)のポリオキシエチレンモノステアレート50重量部を、鱗片状黒鉛（伊藤黒鉛株式会社、品名Ｘ−１０）を加えず、140℃のニーダーにより、１時間混練りして150℃で10万ポイズの混合物を得た。これを水で溶解して50重量%の水溶液として80μm厚のアルミニウム箔の片面に塗布、乾燥して厚さ30μmの膜を形成し、ドリル孔明け用エントリーシート８を作製した。厚さ0.10mm、両面12μm銅張ガラスエポキシ積層板を３枚重ねた上に、ドリル孔明け用エントリーシート８の樹脂組成物層を上にしてそれぞれ配置して実施例２と同様にしてドリル孔明け加工を行った。孔位置精度とドリルへの樹脂巻き付き度合いの結果を表２に示した。
(Comparative Example 2)
50 parts by weight of polyethylene glycol having a weight average molecular weight of 110,000 (measured by the GPC method) and 50 parts by weight of polyoxyethylene monostearate having a weight average molecular weight of 1000 (measured by the GPC method) are flaky graphite (Ito Graphite Co., Ltd., product name) X-10) was not added, and the mixture was kneaded for 1 hour by a kneader at 140 ° C to obtain a mixture of 100,000 poise at 150 ° C. This was dissolved in water, applied as a 50 wt% aqueous solution to one side of an 80 μm thick aluminum foil, and dried to form a 30 μm thick film, thereby producing an entry sheet 8 for drilling. Drill holes in the same manner as in Example 2 by placing three 0.10 mm thick, double-sided 12 μm copper-clad glass epoxy laminates on top of each other and placing the resin composition layer of the drilling entry sheet 8 on top. Dawn processing was performed. The results of the hole position accuracy and the degree of resin wrapping around the drill are shown in Table 2.
（比較例３）
重量平均分子量15万(GPC法で測定)のポリエチレンオキサイド35重量部、重量平均分子量900(GPC法で測定)のポリオキシエチレンモノステアレート65重量部とを130℃のニーダーにより窒素ガス中で１時間混練し15万ポイズの混合物を得た。これに鱗片状黒鉛（伊藤黒鉛株式会社、品名Ｘ−１０）と塊状黒鉛（伊藤黒鉛株式会社、品名ＳＲＰ９８−６）の重量比で1:1の混合物を加えず、100℃のニーダーにより30分混練し、アルミ箔の片面に塗布して厚さ100μmの膜を形成し、ドリル孔明け用エントリーシート９を作製した。厚さ0.20mm、両面12μm銅張ガラスエポキシ積層板を8枚重ねた上にドリル孔明け用エントリーシート９の樹脂組成物層を上にしてそれぞれ配置して実施例３と同様にドリル孔明け加工を行った。孔位置精度とドリルへの樹脂巻き付き度合いの結果を表３に示した。
(Comparative Example 3)
35 parts by weight of polyethylene oxide having a weight average molecular weight of 150,000 (measured by the GPC method) and 65 parts by weight of polyoxyethylene monostearate having a weight average molecular weight of 900 (measured by the GPC method) are added in nitrogen gas by a 130 ° C. kneader. The mixture was kneaded for 1 hour to obtain a 150,000 poise mixture. To this, a 1: 1 mixture was not added in a weight ratio of flake graphite (Ito Graphite Co., Ltd., product name X-10) and lump graphite (Ito Graphite Co., Ltd., product name SRP98-6), and 30 minutes by a kneader at 100 ° C. The kneaded product was applied to one side of an aluminum foil to form a film having a thickness of 100 μm, and an entry sheet 9 for drilling was produced. Drill hole drilling process as in Example 3 by placing 8 sheets of 0.20mm thick double-sided 12μm copper-clad glass epoxy laminates and placing the resin composition layer of the drill hole entry sheet 9 on top of each other. Went. The results of the hole position accuracy and the degree of resin wrapping around the drill are shown in Table 3.
表１
項 目 炭素粉 孔位置精度μｍ 樹脂巻き付き度合い
重量部 平均＋３σ 最大 微少 少ない 多い
実施例１
シート１ 30 22 34 14/20 4/20 2/20
シート２ 60 20 31 14/20 6/20 0/20
比較例１
シート７ なし 30 43 10/20 5/20 5/20
表２
項 目 炭素粉 孔位置精度μｍ 樹脂巻き付き度合い
重量部 平均＋３σ 最大 微少 少ない 多い
実施例２
シート３ 30 11 21 17/20 3/20 0/20
シート４ 60 10 18 19/20 1/20 0/20
比較例２
シート８ なし 15 36 14/20 6/20 0/20
表３
項 目 炭素粉 孔位置精度μｍ 樹脂巻き付き度合い
重量部 平均＋３σ 最大 微少 少ない 多い
実施例３
シート５ 30 19 30 16/20 4/20 0/20
シート６ 60 17 27 18/20 2/20 0/20
比較例３
シート９ なし 26 40 13/20 6/20 1/20 Table 1
Item carbon powder hole position accuracy μm resin winding degree
Weight part Average + 3σ Maximum Minute Small Less Many
Example 1
Sheet 1 30 22 34 14/20 4/20 2/20
Sheet 2 60 20 31 14/20 6/20 0/20
Comparative Example 1
Seat 7 None 30 43 10/20 5/20 5/20
Table 2
Item carbon powder hole position accuracy μm resin winding degree
Weight part Average + 3σ Maximum Minute Small Less Many
Example 2
Sheet 3 30 11 21 17/20 3/20 0/20
Seat 4 60 10 18 19/20 1/20 0/20
Comparative Example 2
Seat 8 None 15 36 14/20 6/20 0/20
Table 3
Item carbon powder hole position accuracy μm resin winding degree
Weight part Average + 3σ Maximum Minute Small Less Many
Example 3
Sheet 5 30 19 30 16/20 4/20 0/20
Seat 6 60 17 27 18/20 2/20 0/20
Comparative Example 3
Seat 9 None 26 40 13/20 6/20 1/20
＜評価方法＞
１）孔位置精度：ドリル１本で3000ヒットの加工を行い、重ねた銅張積層板の最下板の裏面における3000ヒット分の孔位置と指定座標とのズレをホールアナライザ（日立ビアメカニクス製）にて測定。ドリル１本あたり3000ヒット分のズレ値の平均値と標準偏差（σ）を求め、[平均＋３σ]（ａ）と最大値（ｂ）を算出。ドリル２０本分の（ａ）と（ｂ）をそれぞれ平均した値。
２）樹脂巻き付き度合い：3000ヒット加工後のドリルビット20本を、倍率25倍の顕微鏡にて観察し、ドリルビット径に対する樹脂の巻き付きの最大径を求め、以下の３段階（ドリルビット径の1.5倍未満：微少、同1.5〜5倍：少ない、同5倍超：多い）に分類し、該当本数／20（本）と表記。
<Evaluation method>
1) Hole position accuracy: Processing of 3000 hits with a single drill, hole analyzer (made by Hitachi Via Mechanics) ) Obtain the average value and standard deviation (σ) of the deviation value for 3000 hits per drill, and calculate [average + 3σ] (a) and maximum value (b). Values obtained by averaging (a) and (b) for 20 drills.
2) Resin winding degree: 20 drill bits after 3000 hit processing are observed with a microscope with a magnification of 25 times, and the maximum diameter of the resin winding relative to the drill bit diameter is obtained. (Less than double: Slight, 1.5 to 5 times: Less, More than 5 times: Many), and the corresponding number / 20 (book).
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007059694A JP5012100B2 (en) | 2007-03-09 | 2007-03-09 | Entry sheet for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007059694A JP5012100B2 (en) | 2007-03-09 | 2007-03-09 | Entry sheet for drilling |
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| Publication Number | Publication Date |
|---|---|
| JP2008222762A true JP2008222762A (en) | 2008-09-25 |
| JP2008222762A5 JP2008222762A5 (en) | 2009-07-23 |
| JP5012100B2 JP5012100B2 (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2007059694A Expired - Fee Related JP5012100B2 (en) | 2007-03-09 | 2007-03-09 | Entry sheet for drilling |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011025144A2 (en) * | 2009-08-26 | 2011-03-03 | (주)상아프론테크 | Entry sheet for printed circuit board hole boring, water-soluble lubricating resin composition used with same and production method for same |
| CN102143815A (en) * | 2009-08-26 | 2011-08-03 | 象牙芙蓉太克股份有限公司 | Entry sheet for printed circuit board hole boring, water-soluble lubricating resin composition used with same and production method for same |
| JP2014019157A (en) * | 2012-07-12 | 2014-02-03 | Scope Engineering And Trading Co Ltd | Entry sheet for drilling and method for producing the same |
| WO2017022822A1 (en) * | 2015-08-06 | 2017-02-09 | 三菱瓦斯化学株式会社 | Cutting auxiliary lubricant and cutting method |
| JPWO2014157570A1 (en) * | 2013-03-27 | 2017-02-16 | 三菱瓦斯化学株式会社 | Entry sheet for cutting fiber-reinforced composite material or metal and cutting method |
| WO2017090711A1 (en) * | 2015-11-26 | 2017-06-01 | 三菱瓦斯化学株式会社 | Method for cutting fiber-reinforced composite member |
| WO2017208912A1 (en) * | 2016-05-31 | 2017-12-07 | 三菱瓦斯化学株式会社 | Entry sheet for drilling and drilling method using same |
| JPWO2016147818A1 (en) * | 2015-03-19 | 2017-12-28 | 三菱瓦斯化学株式会社 | Entry sheet for drilling and drilling method using the same |
| JPWO2016147817A1 (en) * | 2015-03-19 | 2017-12-28 | 三菱瓦斯化学株式会社 | Entry sheet for drilling and drilling method using the same |
| US10159153B2 (en) | 2012-03-27 | 2018-12-18 | Mitsubishi Gas Chemical Company, Inc. | Entry sheet for drilling |
| WO2019187670A1 (en) * | 2018-03-30 | 2019-10-03 | 三菱瓦斯化学株式会社 | Entry sheet for drilling, and drilling method employing same |
| US10674609B2 (en) | 2014-03-31 | 2020-06-02 | Mitsubishi Gas Chemical Company, Inc. | Entry sheet for drilling |
| US11225625B2 (en) * | 2017-05-25 | 2022-01-18 | Mitsubishi Gas Chemical Company, Inc. | Lubricant material for assisting machining process, lubricant sheet for assisting machining process, and machining method |
| US11325199B2 (en) | 2016-02-17 | 2022-05-10 | Mitsubishi Gas Chemical Company, Inc. | Cutting work method and method for producing cut product |
| US11383307B2 (en) | 2015-09-02 | 2022-07-12 | Mitsubishi Gas Chemical Company, Inc. | Entry sheet for drilling and method for drilling processing using same |
| US11819930B2 (en) | 2016-11-14 | 2023-11-21 | Mitsubishi Gas Chemical Company, Inc. | Material for built-up edge formation and built-up edge formation method |
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| JPH05169400A (en) * | 1991-12-18 | 1993-07-09 | Mitsubishi Gas Chem Co Inc | Lubricant sheet for small boring |
| JP2005019657A (en) * | 2003-06-26 | 2005-01-20 | Nippon Synthetic Chem Ind Co Ltd:The | Sheet for perforating printed-wiring board and method for perforating printed-wiring board using the sheet |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05169400A (en) * | 1991-12-18 | 1993-07-09 | Mitsubishi Gas Chem Co Inc | Lubricant sheet for small boring |
| JP2005019657A (en) * | 2003-06-26 | 2005-01-20 | Nippon Synthetic Chem Ind Co Ltd:The | Sheet for perforating printed-wiring board and method for perforating printed-wiring board using the sheet |
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| WO2011025144A3 (en) * | 2009-08-26 | 2011-04-21 | (주)상아프론테크 | Entry sheet for printed circuit board hole boring, water-soluble lubricating resin composition used with same and production method for same |
| CN102143815A (en) * | 2009-08-26 | 2011-08-03 | 象牙芙蓉太克股份有限公司 | Entry sheet for printed circuit board hole boring, water-soluble lubricating resin composition used with same and production method for same |
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| JP2014019157A (en) * | 2012-07-12 | 2014-02-03 | Scope Engineering And Trading Co Ltd | Entry sheet for drilling and method for producing the same |
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| JPWO2017022822A1 (en) * | 2015-08-06 | 2017-12-28 | 三菱瓦斯化学株式会社 | Cutting auxiliary lubricant and cutting method |
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| EP3333245A4 (en) * | 2015-08-06 | 2018-08-08 | Mitsubishi Gas Chemical Company, Inc. | Cutting auxiliary lubricant and cutting method |
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| US11383307B2 (en) | 2015-09-02 | 2022-07-12 | Mitsubishi Gas Chemical Company, Inc. | Entry sheet for drilling and method for drilling processing using same |
| WO2017090711A1 (en) * | 2015-11-26 | 2017-06-01 | 三菱瓦斯化学株式会社 | Method for cutting fiber-reinforced composite member |
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| CN108290229A (en) * | 2015-11-26 | 2018-07-17 | 三菱瓦斯化学株式会社 | The cutting working method of fibre reinforced composites |
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