JP4789726B2 - 感光性樹脂組成物、その積層体、その硬化物及び該組成物を用いたパターン形成方法 - Google Patents
感光性樹脂組成物、その積層体、その硬化物及び該組成物を用いたパターン形成方法 Download PDFInfo
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- JP4789726B2 JP4789726B2 JP2006194591A JP2006194591A JP4789726B2 JP 4789726 B2 JP4789726 B2 JP 4789726B2 JP 2006194591 A JP2006194591 A JP 2006194591A JP 2006194591 A JP2006194591 A JP 2006194591A JP 4789726 B2 JP4789726 B2 JP 4789726B2
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- photosensitive resin
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- phenyl
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- 239000011342 resin composition Substances 0.000 title claims description 71
- 239000000203 mixture Substances 0.000 title claims description 37
- 238000000034 method Methods 0.000 title description 7
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- 239000011347 resin Substances 0.000 claims description 27
- 239000003505 polymerization initiator Substances 0.000 claims description 23
- -1 2,3-epoxypropoxy Chemical group 0.000 claims description 16
- 239000002904 solvent Substances 0.000 claims description 13
- 239000003999 initiator Substances 0.000 claims description 9
- 238000012663 cationic photopolymerization Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000007983 Tris buffer Substances 0.000 claims description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 4
- 125000006340 pentafluoro ethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 claims description 4
- JFZKOODUSFUFIZ-UHFFFAOYSA-N trifluoro phosphate Chemical compound FOP(=O)(OF)OF JFZKOODUSFUFIZ-UHFFFAOYSA-N 0.000 claims description 3
- TVPNSPVSCKWFEU-UHFFFAOYSA-N 2-[[4-[2-[4-[1,1-bis[4-(oxiran-2-ylmethoxy)phenyl]ethyl]phenyl]propan-2-yl]phenoxy]methyl]oxirane Chemical compound C=1C=C(C(C)(C=2C=CC(OCC3OC3)=CC=2)C=2C=CC(OCC3OC3)=CC=2)C=CC=1C(C)(C)C(C=C1)=CC=C1OCC1CO1 TVPNSPVSCKWFEU-UHFFFAOYSA-N 0.000 claims description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N 2-propanol Substances CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 2
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- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 6
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- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
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- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 3
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- 238000000576 coating method Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- OWZDULOODZHVCQ-UHFFFAOYSA-N diphenyl-(4-phenylsulfanylphenyl)sulfanium Chemical compound C=1C=C([S+](C=2C=CC=CC=2)C=2C=CC=CC=2)C=CC=1SC1=CC=CC=C1 OWZDULOODZHVCQ-UHFFFAOYSA-N 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 3
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- 238000002834 transmittance Methods 0.000 description 3
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 2
- OUNLDCIYHQIIQM-UHFFFAOYSA-N 2-benzylsulfanyl-1-phenylethanone Chemical compound C=1C=CC=CC=1C(=O)CSCC1=CC=CC=C1 OUNLDCIYHQIIQM-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
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- 238000011156 evaluation Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
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- UOHMMEJUHBCKEE-UHFFFAOYSA-N prehnitene Chemical compound CC1=CC=C(C)C(C)=C1C UOHMMEJUHBCKEE-UHFFFAOYSA-N 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical group CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
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- 125000005409 triarylsulfonium group Chemical group 0.000 description 2
- WLOQLWBIJZDHET-UHFFFAOYSA-N triphenylsulfonium Chemical compound C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 WLOQLWBIJZDHET-UHFFFAOYSA-N 0.000 description 2
- 239000012953 triphenylsulfonium Substances 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- WAGRICKHSWCAEE-UHFFFAOYSA-N (9-oxo-7-propan-2-ylthioxanthen-2-yl)-diphenylsulfanium Chemical compound C1=C2C(=O)C3=CC(C(C)C)=CC=C3SC2=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 WAGRICKHSWCAEE-UHFFFAOYSA-N 0.000 description 1
- YBQHLCCONMXKNT-UHFFFAOYSA-N (9-oxothioxanthen-2-yl)-diphenylsulfanium Chemical compound C1=C2C(=O)C3=CC=CC=C3SC2=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 YBQHLCCONMXKNT-UHFFFAOYSA-N 0.000 description 1
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- COOJZGDRNSHKNW-UHFFFAOYSA-N 1-(benzylsulfanylmethyl)-4-methoxybenzene Chemical compound C1=CC(OC)=CC=C1CSCC1=CC=CC=C1 COOJZGDRNSHKNW-UHFFFAOYSA-N 0.000 description 1
- ZIKLJUUTSQYGQI-UHFFFAOYSA-N 1-ethoxy-2-(2-ethoxypropoxy)propane Chemical compound CCOCC(C)OCC(C)OCC ZIKLJUUTSQYGQI-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Materials For Photolithography (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
- Epoxy Resins (AREA)
Description
本発明の感光性樹脂組成物は、スルホニウムのトリス(ペンタフルオロエチル)トリフルオロホスフェートイオンとの塩である光カチオン重合開始剤(A)と前記混合物(B)を含有することを特徴とし、高感度で、高アスペクト比の樹脂パターンを形成することができる。さらに上記樹脂パターンを形成する能力が劣化することなく長期間にわたり発揮できる特性を付与することができる。これらの組み合わせとしては、種々可能であるが、特に前記混合物である日本化薬(株)製 NC6300と前記式(2)で表される化合物である光カチオン重合開始剤との組み合わせが最も好ましい。
前記光カチオン重合開始剤(A)はスルホニウムトリス(ペンタフルオロエチル)トリフルオロホスフェートである。
(実施例1〜3)(比較例1)
表2に記載の配合量(単位は重量部)に従って、混合物、光カチオン重合開始剤、及びその他の成分を撹拌機付きフラスコで60℃で1時間撹拌混合し、感光性樹脂組成物を得た。
(実施例1〜3)(比較例1)
この感光性樹脂組成物をシリコンウエハ上にスピンコーターで塗布後、乾燥し、80μmの膜厚を有する感光性樹脂組成物層を得た。この感光性樹脂組成物層をホットプレートにより65℃で5分および95℃で20分プリベークした。その後、i線露光装置(マスクアライナー:ウシオ電機社製)を用いてパターン露光(ソフトコンタクト、i線)を行い、ホットプレートにより95℃で6分、露光後ベーク(PEB)を行い、プロピレングリコールモノメチルエーテルアセテートを用いて浸漬法により23℃で7分現像処理を行い、基板上に硬化した樹脂パターンを得た。
現像後に、必要露光量により下記評価を行った。結果を下記表2に示す。
アスペクト比:膜厚/形成されたレジストパターン中密着している最も細かいパターン幅
(A):光カチオン重合開始剤
(商品名 CPI−210S サンアプロ(株)製)
(B):本発明による混合物
(商品名 NC6300 日本化薬(株)製)
(C):反応性エポキシモノマー
(商品名 ED506 旭電化工業(株)製)
(D):溶剤 シクロペンタノン
(E):レベリング剤
(商品名 メガファックF−470 大日本インキ化学工業(株)製)
(F):シランカップリング剤
(商品名 S−510 チッソ(株)製)
(G):光カチオン重合開始剤
(商品名 UVI−6974 ダウケミカル社製50%炭酸プロピレン溶液)
(感光性樹脂組成物)
本発明による混合物(商品名 NC6300 日本化薬(株)製)を100重量部、光カチオン重合開始剤(商品名 CPI−210S サンアプロ(株)製)を4.6重量部、反応性エポキシモノマー(商品名 ED506 旭電化工業(株)製)を4重量部、およびメチルエチルケトンを30重量部混合した感光性樹脂組成物を得た。
この感光性樹脂組成物を膜厚60μmのポリプロピレン(PP)フィルム(ベースフィルム、東レ(株)製)上に均一に塗布し、温風対流乾燥機により65℃で10分および80℃で15分乾燥した後、感光性組成物層上に膜厚60μmのPPフィルム(カバーフィルム、東レ(株)製)をラミネートして、40μmの膜厚の感光性樹脂組成物積層体を形成した。
Claims (7)
- スルホニウムトリス(ペンタフルオロエチル)トリフルオロホスフェートである光カチオン重合開始剤(A)と2−[4−(2,3−エポキシプロポキシ)フェニル]−2−[4−[1,1−ビス[4−(2,3−エポキシプロポキシ)フェニル]エチル]フェニル]プロパンと1,3−ビス[4−[1−[4−(2,3−エポキシプロポキシ)フェニル]−1−[4−[1−[4−(2,3−エポキシプロポキシ)フェニル]−1−メチルエチル]フェニル]エチル]フェノキシ]−2−プロパノールの混合物(B)を含有してなる感光性樹脂組成物。
- 溶剤(D)を含有する感光性樹脂組成物において、その固形分濃度が5〜95重量%であることを特徴とする請求項1又は2記載の感光性樹脂組成物。
- 請求項1又は2記載の感光性樹脂組成物を基材で挟み込んだ感光性樹脂組成物積層体。
- 請求項1〜3のいずれか1項記載の感光性樹脂組成物の硬化物。
- 請求項1〜3のいずれか1項記載のいずれかの感光性樹脂組成物を所望の支持体上に塗布し、乾燥後、前記感光性樹脂組成物層を所定のパターンに露光し、露光後ベークし、樹脂組成物層を現像し、得られた樹脂パターンを加熱処理して、所定形状の硬化樹脂パターンを得ることを特徴とするパターン形成方法。
- 請求項4記載の積層体の基材を除去し、前記所望の支持体上に貼り付け、前記感光性樹脂組成物層を所定のパターンに露光し、露光後ベークし、樹脂組成物を現像し、得られた樹脂パターンを加熱処理して、所定形状の硬化樹脂パターンを得ることを特徴とするパターン形成方法。
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JP5137674B2 (ja) * | 2008-04-26 | 2013-02-06 | 日本化薬株式会社 | Mems用感光性樹脂組成物及びその硬化物 |
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