JP5515394B2 - 感光性変性ポリイミド樹脂組成物及びその用途 - Google Patents
感光性変性ポリイミド樹脂組成物及びその用途 Download PDFInfo
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- JP5515394B2 JP5515394B2 JP2009110759A JP2009110759A JP5515394B2 JP 5515394 B2 JP5515394 B2 JP 5515394B2 JP 2009110759 A JP2009110759 A JP 2009110759A JP 2009110759 A JP2009110759 A JP 2009110759A JP 5515394 B2 JP5515394 B2 JP 5515394B2
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- modified polyimide
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- 239000002904 solvent Substances 0.000 claims description 33
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 13
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- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 3
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- KLAKIAVEMQMVBT-UHFFFAOYSA-N p-hydroxy-phenacyl alcohol Natural products OCC(=O)C1=CC=C(O)C=C1 KLAKIAVEMQMVBT-UHFFFAOYSA-N 0.000 description 1
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 150000003021 phthalic acid derivatives Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 229920005575 poly(amic acid) Polymers 0.000 description 1
- 229920003192 poly(bis maleimide) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- VHNQIURBCCNWDN-UHFFFAOYSA-N pyridine-2,6-diamine Chemical compound NC1=CC=CC(N)=N1 VHNQIURBCCNWDN-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 125000005590 trimellitic acid group Chemical class 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/343—Polycarboxylic acids having at least three carboxylic acid groups
- C08G18/346—Polycarboxylic acids having at least three carboxylic acid groups having four carboxylic acid groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7678—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing condensed aromatic rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1003—Preparatory processes
- C08G73/1035—Preparatory processes from tetracarboxylic acids or derivatives and diisocyanates
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
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- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1042—Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/022—Quinonediazides
- G03F7/023—Macromolecular quinonediazides; Macromolecular additives, e.g. binders
- G03F7/0233—Macromolecular quinonediazides; Macromolecular additives, e.g. binders characterised by the polymeric binders or the macromolecular additives other than the macromolecular quinonediazides
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- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/40—Treatment after imagewise removal, e.g. baking
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/285—Permanent coating compositions
- H05K3/287—Photosensitive compositions
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0137—Materials
- H05K2201/0154—Polyimide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
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- Microelectronics & Electronic Packaging (AREA)
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Description
で表される変性ポリイミドと、感光剤と、熱硬化剤と、溶媒とを含有する、感光性変性ポリイミド樹脂組成物を提供する。
で表されるジオール化合物と一般式(V)
で表されるジイソシアネートと反応させ、次いでテトラカルボン酸二無水物と反応させることによりイミド主鎖へ導入させることが可能となる。
で表されるものが好ましい。一般式(VI)中、Rにより示されるアルキレン基の炭素数は、2〜8が好ましく、また、mは6〜16が好ましい。このようなポリカーボネートジオールの好ましい具体例として、旭化成ケミカルズ(株)製の製品名デュラノール T6001、T5651、T4691などやダイセル化学(株)製の製品名PLACCEL CD−210、CD−210PL、CD−210HLなどの市販されているものを例示することができる。また、ポリエステルジオールとしては、一般式(VII)
で表されるものが好ましく、好ましいR及びmは、一般式(VI)の場合と同様である。このようなポリエステルジオールの好ましい具体例としては、例えば、ダイセル化学(株)製の製品名PLACCEL 210、210N、L212ALなどを例示することができる。また、ジイソシアネート化合物に過剰量のジオール化合物を反応させることにより合成したポリウレタンジオールオリゴマーも用いることができる。このポリウレタンジオールオリゴマーとしては、一般式(VIII)
ステンレス製の碇型攪拌器を取り付けた2リットルのセパラブル3つ口フラスコに、水分分離トラップを備えた玉付冷却管を取り付けた。デュラノールT5651(旭化成ケミカルズ(株)製ポリカーボネートジオール)[分子量986(水酸基価から算出)]98.60g(100ミリモル)、デュラネートD201(旭化成ケミカルズ(株)製ジイソシアネート)[分子量532(イソシアネートの重量%から算出)]106.40g(200ミリモル)、γ−ブチロラクトン(γBL)156gを仕込んだ。室温、窒素雰囲気下、200rpmで15分攪拌した後、140℃に昇温して1時間攪拌した。ついで、ビス(3,4−ジカルボキシフェニル)エーテル二無水物(ODPA)62.04g(200ミリモル)、γBL156gを加え、170℃、200rpmで攪拌しながら1.5時間反応させた。さらに、室温に冷却しエチレンビス(トリメリテート)二無水物28.73g(70ミリモル)、3,3’−ジアミノ−4,4’−ジヒドロキシジフェニルスルホン(ABPS)16.82g(60ミリモル)、4,4’−ジアミノジフェニルメタン−3,3’−ジカルボン酸(MBAA)17.18g(60ミリモル)、ビス[4−(4−アミノフェノキシ)フェニル]スルホン(BAPS)21.62g(50ミリモル)、安息香酸エチル312g、トルエン70g、γ−バレロラクトン3.0g(30ミリモル)、ピリジン4.8g(60ミリモル)を加え、170℃、200rpmで攪拌しながら3.5時間反応させた。還流物を系外に除くことにより35%濃度のポリイミド溶液を得た。
合成実施例1と同様の装置を用いた。デュラノールT5651 118.32g(120ミリモル)、ヘキサメチレンジイソシアネート(HDI)40.37g(240ミリモル)、γ−ブチロラクトン(γBL)165gを仕込んだ。室温、窒素雰囲気下、200rpmで15分攪拌した後、140℃に昇温して1時間攪拌した。ついで、ODPA55.84g(180ミリモル)、γBL166gを加え、170℃、200rpmで攪拌しながら1.5時間反応させた。さらに、室温に冷却し3,3’,4,4’−ビフェニルテトラカルボン酸二無水物(BPDA)35.31g(120ミリモル)、ABPS33.64g(120ミリモル)、MBAA17.18g(60ミリモル)、γBL331g、トルエン70g、γ−バレロラクトン3.0g(30ミリモル)、ピリジン4.8g(60ミリモル)を加え、170℃、200rpmで攪拌しながら4.5時間反応させた。還流物を系外に除くことにより30%濃度のポリイミド溶液を得た。
合成実施例1と同様の装置を用いる。デュラノールT5652[分子量1972(水酸基価から算出)] 157.76g(80ミリモル)、1,5−ナフタレンジイソシアネート(NDI)33.63g(160ミリモル)、γBL172gを仕込む。室温、窒素雰囲気下、200rpmで15分攪拌した後、140℃に昇温して1時間攪拌した。ついで、ODPA49.64g(160ミリモル)、γBL171gを加え、170℃、200rpmで攪拌しながら1.5時間反応させた。さらに、室温に冷却しエチレンビス(トリメリテート)二無水物32.83g(80ミリモル)、ABPS40.36g(144ミリモル)、2,2−ビス[4−(4−アミノフェノキシ)フェニル]プロパン6.57g(16ミリモル)、トリグライム228g、トルエン80g、γ−バレロラクトン2.5g(25ミリモル)、ピリジン3.9g(50ミリモル)を加え、170℃、200rpmで攪拌しながら4時間反応させた。還流物を系外に除くことにより35%濃度のポリイミド溶液を得た。
合成実施例1と同様の装置を用いる。デュラノールT5651 133.11g(135ミリモル)、HDI45.41g(270ミリモル)、γBL155gを仕込む。室温、窒素雰囲気下、200rpmで15分攪拌した後、140℃に昇温して1時間攪拌した。ついで、ODPA55.84g(180ミリモル)、γBL155gを加え、170℃、200rpmで攪拌しながら1.5時間反応させた。さらに、室温に冷却しBPDA39.72g(135ミリモル)、ビス[4−(4−アミノフェノキシ)フェニル]スルホン(BAPS)77.85g(180ミリモル)、γBL310g、トルエン70g、γ−バレロラクトン3.2g(32ミリモル)、ピリジン5.0g(64ミリモル)を加え、170℃、200rpmで攪拌しながら3時間反応させた。還流物を系外に除くことにより35%濃度のポリイミド溶液を得た。
ポジ型感光性樹脂組成物の製造
合成例1〜2及び合成比較例1で得られた各ワニス(ベースワニス)に、感光剤としてナフトキノンジアジドスルホン酸エステル(ダイトーケミックス社製:DTEP−350、PA−6、東洋合成社製:4NT−300)、難燃剤として(大塚化学社製:SPB−100、大八化学工業社製:PX−200、クラリアンドジャパン社製:EXOLIT OP 935)をポリマー固形分に対して表2に示す通りに配合し混合して感光性変性ポリイミド樹脂組成物(感光性インク)を調合した。なお、レベリング剤(サイテック社製:XL480)をポリマー固形分に対して約1wt%添加しており、最終的な攪拌混合の後、真空下で脱泡を行ない、ポジ型感光性変性ポリイミド樹脂組成物を得た。
このようにして得られた各ポジ型感光性変性ポリイミド樹脂組成物を、古河サーキットフォイル株式会社製の銅箔F2−WS(18μm)上に、スクリーン印刷法にて塗布した後、プリベーク(90℃×30分)して組成物中の溶媒を除去し、厚さ13〜17μmのフォトレジスト皮膜を得た。このフォトレジスト配合塗布膜上に、ポジ型フォトマスク用のテストパターン(10、15、20、25、・・・、200ミクロンのスルーホール及びラインアンドスペースパターン)を置き、2kW超高圧水銀灯照射装置(オーク製作所製品:JP−2000G)を用いて、画像が得られる露光量で照射した。500〜2000mJで照射したサンプルを現像液(2%水酸化ナトリウム水溶液)でスプレー現像した。1000mJの照射では、40℃の現像液で0.5〜3分間現像を行ない、脱イオン水で洗浄し、熱風乾燥炉で乾燥後、解像度を観察した。このポリイミド塗布膜の120℃で60分間、180℃で30分間の乾燥処理におけるポリイミド膜厚は、約16ミクロンであった。以上の方法により得られた共重合体ポリイミド塗布膜のスルーホールパターンの口径及びラインアンドスペースパターンの線幅結果を表2に示す。
上記の表2に示す感光性変性ポリイミド樹脂組成物について、以下の項目につき評価を実施し、その結果を下記表3に示す。
各難燃性変性ポリイミド組成物を165−3Dメッシュのステンレス製版でスクリーン印刷により基板に塗布し、熱風オーブンにてプリベーク(90℃×30分)して組成物中の溶媒を除去し、厚さ14〜17μmのフォトレジスト皮膜を得た。このフォトレジスト配合塗布膜を40℃の現像液で2分間現像を行ない、脱イオン水で洗浄し、熱風オーブンにて120℃で60分間、180℃で30分間の乾燥処理におけるポリイミド膜厚は、約15μmであった。得られたポリイミドフィルムを、塗布面を外側に180°に折り曲げて乾燥膜の割れの有無を目視により判定した。判定基準を以下に示す。
○:乾燥膜の割れなし。
×:乾燥膜が割れ、もしくは亀裂が生じる。
JIS・C−6481の試験法に準じ、上記のフィルム作製方法にて表2に示す実施例1〜6および比較例1〜4記載の各感光性変性ポリイミド組成物を基板〔(登録商標)ESPANEX、新日鐵化学(株)製〕MC18−25−00FRMに塗布し試験用サンプルを作製した。得られた試験片にロジン系フラックスを塗布し、260℃のハンダ浴に5秒間フロートさせることを1サイクルとして、サイクル毎に乾燥膜を目視観察し、"フクレ"、"剥れ"及び"ハンダもぐりこみ"がなく、全く変化が認められないことを確認しながら繰り返したときの最大サイクル回数で表した。
燃焼性試験片は、以下の方法で作製した。厚み25μm、200mm×50mmのポリイミドフィルム(東レ・デュポン(株)製,カプトン100EN)の両面に、厚みが20μmの上記表2に示す実施例1〜6および比較例1〜4記載の感光性変性ポリイミド組成物の乾燥膜を設けて試験片とした。燃焼特性は米国のUnderwriters Laboratories Inc.(ULと略す)の高分子材料の難燃性試験規格94UL−VTM試験に準拠した方法で難燃性を評価した。
VTM−0:下記の要求事項をすべて満足する。
(1)全ての試験片が、各回接炎中止後10秒を越えて有炎燃焼しない事。
(2)各組5個の試験片に合計10回の接炎を行ない、有炎燃焼時間の合計が50秒を超えない事。
(3)有炎又は赤熱燃焼が125mmの標線まで達しない事。
(4)有炎滴下物により、脱脂綿が着火しない事。
(5)第2回目の接炎中止後、各試料の有炎と赤熱燃焼の合計が30秒を超えない事。
(6)1組5個の試験片のうち1個のみが要求事項に適しないとき又は有炎時間の合計が51秒から55秒の範囲にあるときは、更に5個の試験片を試験し、すべてが前記(1)から(5)を満足する事。
(1)全ての試験片が、各回接炎中止後30秒を越えて有炎燃焼しない事。
(2)各組5個の試験片に合計10回の接炎を行ない、有炎燃焼時間の合計が250秒を超えない事。
(3)有炎又は赤熱燃焼が125mmの標線まで達しない事。
(4)有炎滴下物により、脱脂綿が着火しない事。
(5)第2回目の接炎中止後、各試料の有炎と赤熱燃焼の合計が60秒を超えない事。
(6)1組5個の試験片のうち1個のみが要求事項に適しないとき又は有炎時間の合計が251秒から255秒の範囲にあるときは、更に5個の試験片を試験し、すべてが前記(1)から(5)を満足する事。
(1)全ての試験片が、各回接炎中止後30秒を越えて有炎燃焼しない事。
(2)各組5個の試験片に合計10回の接炎を行ない、有炎燃焼時間の合計が250秒を超えない事。
(3)有炎又は赤熱燃焼が125mmの標線まで達しない事。
(4)有炎滴下物により、脱脂綿が着火してもよい。
(5)第2回目の接炎中止後、各試料の有炎と赤熱燃焼の合計は60秒を超えない事。
(6)1組5個の試験片のうち1個のみが要求事項に適しないとき又は有炎時間の合計が251秒から255秒の範囲にあるときは、更に5個の試験片を試験し、すべてが前記(1)から(5)を満足する事。
市販の基板(IPC規格)のIPC−C(櫛型パターン)上に、各難燃性変性ポリイミド組成物を165−3Dメッシュのステンレス製版でスクリーン印刷により基板に塗布し、熱風オーブンにて120℃60分間、180℃30分間加熱を行った。その試験片を85℃、相対湿度85%の雰囲気下において、直流電流100Vを印加した。1000時間後の層内絶縁抵抗値を測定してHHBT耐性を評価した。絶縁抵抗値の測定は、100V直流電圧を加え1分間保った後、その電圧印加状態で電気絶縁計にて行なった。判定基準を以下に示す。
○:絶縁抵抗が108Ω以上のもの。
×:絶縁抵抗が108Ω未満のもの。
印刷は、ピーアイのテスト用ベータマスク用いてマイクロテック社製MT−550TVCスクリーン印刷機を用いて行った。又、評価で使用した印刷版については、ピーアイ技術研究所のテスト用印刷スクリーン(165メッシュ−3Dのステンレス製、乳剤厚15μm)枠サイズ(550mm×650mm)のもの、印刷条件として、スキージ速度を50〜100mm/min、ギャップ(クリアランス)1.5mm〜2.0mm、スキージ印圧を0.1〜0.2MPaに設定下で印刷を行ない、次の項目について特性を評価した。
この評価は膜厚の変化させずに100回連続して印刷できるかを評価するものである。前記ベータパターンを連続印刷し、印刷開始から10ショット目、それ以降については10ショット毎に100ショットまで抜き取り、上記の同様な条件に乾燥した後、前記と同じ形状を目視及び光学顕微鏡にて観察した。これらの結果を表5に示す。なお、表中の連続ショットの○印は良好な膜形状、×印は不良なで膜形状あったことを意味する。但し、膜形状が著しく悪化した場合は印刷を中止した。
実施例1〜8及び比較例1〜3、のポジ型感光性変性樹脂組成物をFPC基板上に感光性カバーレイとしてスクリーン印刷後、プリベークし、その後順次、露光、現像、アフターベーク(120℃×60分+180℃×30分)の工程を行ない、さらにその後、電解金メッキを施す保護膜付きFPCを作製した。
一般的な電解金めっき及び無電解金めっき処理により行なった。すなわち、以下に示す工程順序で行なった。具体的には、サンプルを各工程の槽に順次浸漬した後、乾燥した。
電解金めっき処理工程
脱脂処理(酸性又はアルカリ脱脂)、水洗、酸処理、水洗、ソフトエッチング、水洗、プリディップ処理(酸処理)、水洗、電解ニッケル(ワット浴)めっき、水洗、電解金(シアン化金カリウム)めっき、水洗、乾燥
無電解金めっき処理工程
脱脂処理(酸性又はアルカリ性脱脂)、水洗、酸処理、水洗、ソフトエッチング、水洗、プリディップ処理(酸処理)、塩化パラジウム触媒化、水洗、無電解ニッケルめっき処理工程 (硝酸ニッケル)、水洗、無電解金(シアン化金カリウム)めっき、水洗、乾燥
フレキシブルなプリント配線板の基材としてエスパネックスM(新日鐵化学(株)製)(絶縁層の厚さ25μm、導体層は銅箔F2−WS(18μm))を使用し、ライン/スペース:30/30μm、50/50μm、100/100μm、200/200μmの櫛形配線板を作製した。この配線基板上にポジ型感光性変性ポリイミド組成物を印刷し、プリベークを行なった。めっきする部分にはマスクを使用し、露光、現像、アフターベーク(120℃×60分+180℃×30分)の工程を行なった。露光、現像工程で開口した部分に電解ニッケル−金めっき又は無電解ニッケル−金めっきを行なうことで、それぞれニッケルの厚さ約3〜5μm、金の厚さ約0.03〜0.07μmを施した。開口部から内部分へのめっきの潜り込みはマイクロ蛍光X線分析又は断面観察にて確認した。その結果を表6に示す。
Claims (11)
- 下記一般式(I)
で表される変性ポリイミドと、感光剤と、熱硬化剤とを含有する、感光性変性ポリイミド樹脂組成物。 - 前記感光剤がポジ型感光剤である、請求項1記載の組成物。
- 前記一般式(I)で表される変性ポリイミドの末端部分に、さらに反応性基を有し、それによって該変性ポリイミドが熱硬化性を有する請求項1又は2記載の組成物。
- 上記一般式(I)で表される変性ポリイミドに対する上記一般式(I)中の、繰返し単位数が上記nで表される繰返し単位の重量比(ただし、Yが芳香族である場合にはYの重量を除く)が0.3〜0.7である請求項1〜3のいずれか1項に記載の組成物。
- 前記感光剤が、芳香族ポリヒドロキシ化合物のナフトキノンジアジドスルホニルエステル又はキノンジアジド化合物である請求項1〜4のいずれか1項に記載の感光性変性ポリイミド樹脂組成物。
- 前記変性ポリイミド100重量部に対して非ハロゲン系難燃剤1〜20重量部をさらに含む請求項1〜5のいずれか1項に記載の組成物。
- 前記非ハロゲン系難燃剤が非ハロゲン系の金属水酸化物等の水和金属化合物又は、リン酸エステル系化合物若しくはフォスファゼン系化合物である請求項6記載の組成物。
- 請求項1〜7のいずれか1項に記載の組成物を成膜し、得られた膜を加熱して前記溶媒を除去することにより得られた感光性樹脂フィルム。
- 請求項1〜7のいずれか1項に記載の組成物を、基材上に塗布して成膜する工程、得られた膜を加熱して前記溶媒を除去する工程、溶媒が除去された前記組成物を、マスクを通して露光する工程、露光後現像する工程、及び現像後、前記硬化剤の硬化温度以上に加熱する工程を有するパターン化ポリイミド樹脂フィルムの作製方法。
- 前記基材が、配線が形成されたプリント配線板又はFPC基板である請求項9記載の方法。
- 請求項10に記載の方法により作製されたパターン化ポリイミド樹脂フィルムを具備するプリント配線板又はFPC。
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CN113994257B (zh) * | 2019-06-06 | 2024-12-24 | 合肥汉之和新材料科技有限公司 | 感光性聚酰亚胺树脂组合物 |
KR102699413B1 (ko) * | 2019-08-01 | 2024-08-28 | 가부시키가이샤 가네카 | 열경화성 수지 조성물, 열경화성 수지막, 열경화막, 적층체, 그리고 프린트 배선판 및 그의 제조 방법 |
KR20230066952A (ko) * | 2021-11-08 | 2023-05-16 | 주식회사 엘지화학 | 폴리이미드계 수지 필름 및 이를 이용한 디스플레이 장치용 기판, 및 광학 장치 |
CN115926219B (zh) * | 2022-12-08 | 2023-09-26 | 安徽方胜电子科技有限公司 | 一种高模量聚酰亚胺薄膜及其制备方法 |
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JP2007271987A (ja) * | 2006-03-31 | 2007-10-18 | Nippon Steel Chem Co Ltd | ブラックレジスト用感光性樹脂組成物 |
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JP5179844B2 (ja) * | 2007-04-06 | 2013-04-10 | 旭化成イーマテリアルズ株式会社 | 感光性樹脂組成物及びそれを用いた感光性フィルム |
US20100132989A1 (en) * | 2007-04-19 | 2010-06-03 | Kan Fujihara | Novel polyimide precursor composition and use thereof |
JP2008297388A (ja) | 2007-05-30 | 2008-12-11 | Toyobo Co Ltd | 変性ポリイミド系樹脂組成物、該組成物を含有するペースト及び該ペーストから得られる電子部品 |
JP5179843B2 (ja) * | 2007-07-31 | 2013-04-10 | 旭化成イーマテリアルズ株式会社 | 感光性樹脂組成物及びそれを用いた感光性フィルム |
JP5064950B2 (ja) * | 2007-09-14 | 2012-10-31 | 株式会社カネカ | 新規な感光性樹脂組成物、それから得られる感光性樹脂組成物溶液、感光性フィルム、絶縁膜及び絶縁膜付きプリント配線板 |
JP5049175B2 (ja) * | 2008-03-25 | 2012-10-17 | 株式会社カネカ | 新規な感光性樹脂組成物、それから得られる感光性樹脂組成物溶液、感光性フィルム、絶縁膜及び絶縁膜付きプリント配線板 |
KR101599755B1 (ko) | 2008-07-22 | 2016-03-04 | 가부시키가이샤 가네카 | 신규한 폴리이미드 전구체 조성물 및 그 이용 |
US8257901B2 (en) * | 2009-03-10 | 2012-09-04 | Lg Chem, Ltd. | Polyimide-based polymers, copolymers thereof and positive type photoresist compositions comprising the same |
JP5755401B2 (ja) * | 2009-04-30 | 2015-07-29 | 株式会社ピーアイ技術研究所 | 変性ポリイミドの製造方法及び変性ポリイミド |
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KR101716288B1 (ko) | 2017-03-14 |
CN102460299A (zh) | 2012-05-16 |
KR20120023025A (ko) | 2012-03-12 |
EP2426557A4 (en) | 2013-01-16 |
US20120097435A1 (en) | 2012-04-26 |
EP2426557A1 (en) | 2012-03-07 |
JP2010260902A (ja) | 2010-11-18 |
US8859170B2 (en) | 2014-10-14 |
CN102460299B (zh) | 2014-06-25 |
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