WO2022086752A1 - Dielectric film-forming composition - Google Patents
Dielectric film-forming composition Download PDFInfo
- Publication number
- WO2022086752A1 WO2022086752A1 PCT/US2021/054471 US2021054471W WO2022086752A1 WO 2022086752 A1 WO2022086752 A1 WO 2022086752A1 US 2021054471 W US2021054471 W US 2021054471W WO 2022086752 A1 WO2022086752 A1 WO 2022086752A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dielectric film
- composition
- parts
- substituted
- weight
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 158
- 229920000642 polymer Polymers 0.000 claims abstract description 71
- 150000001875 compounds Chemical class 0.000 claims abstract description 58
- 239000004643 cyanate ester Substances 0.000 claims abstract description 40
- 229920001721 polyimide Polymers 0.000 claims abstract description 37
- 239000004642 Polyimide Substances 0.000 claims abstract description 36
- 239000002243 precursor Substances 0.000 claims abstract description 14
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate group Chemical group [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 claims abstract description 11
- 229920002577 polybenzoxazole Polymers 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 57
- 238000000034 method Methods 0.000 claims description 48
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 36
- 229910052802 copper Inorganic materials 0.000 claims description 36
- 239000010949 copper Substances 0.000 claims description 36
- 230000008569 process Effects 0.000 claims description 30
- 238000000151 deposition Methods 0.000 claims description 28
- 239000003054 catalyst Substances 0.000 claims description 21
- 230000005855 radiation Effects 0.000 claims description 18
- 125000003118 aryl group Chemical group 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 12
- 229920003986 novolac Polymers 0.000 claims description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims description 5
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 5
- 125000001153 fluoro group Chemical group F* 0.000 claims description 5
- 125000000962 organic group Chemical group 0.000 claims description 5
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 5
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 125000005843 halogen group Chemical group 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 125000002947 alkylene group Chemical group 0.000 claims description 3
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 3
- 125000002993 cycloalkylene group Chemical group 0.000 claims description 3
- 125000000524 functional group Chemical group 0.000 claims description 3
- 238000000059 patterning Methods 0.000 claims description 3
- 150000003568 thioethers Chemical class 0.000 claims description 3
- 125000006832 (C1-C10) alkylene group Chemical group 0.000 claims description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 2
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 239000001294 propane Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 claims 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- INHGSGHLQLYYND-UHFFFAOYSA-N [4-[2-(4-cyanatophenyl)-1,1,1,3,3,3-hexafluoropropan-2-yl]phenyl] cyanate Chemical compound C=1C=C(OC#N)C=CC=1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(OC#N)C=C1 INHGSGHLQLYYND-UHFFFAOYSA-N 0.000 claims 1
- 229930003836 cresol Natural products 0.000 claims 1
- 239000000243 solution Substances 0.000 description 73
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 70
- 239000010410 layer Substances 0.000 description 52
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 43
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 37
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 29
- -1 furylene Chemical group 0.000 description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- 229910052799 carbon Inorganic materials 0.000 description 17
- HCLJOFJIQIJXHS-UHFFFAOYSA-N 2-[2-[2-(2-prop-2-enoyloxyethoxy)ethoxy]ethoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOCCOCCOC(=O)C=C HCLJOFJIQIJXHS-UHFFFAOYSA-N 0.000 description 16
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 15
- KGQLBLGDIQNGSB-UHFFFAOYSA-N benzene-1,4-diol;methoxymethane Chemical compound COC.OC1=CC=C(O)C=C1 KGQLBLGDIQNGSB-UHFFFAOYSA-N 0.000 description 15
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 15
- LRUDIIUSNGCQKF-UHFFFAOYSA-N 5-methyl-1H-benzotriazole Chemical compound C1=C(C)C=CC2=NNN=C21 LRUDIIUSNGCQKF-UHFFFAOYSA-N 0.000 description 14
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 14
- 238000000576 coating method Methods 0.000 description 14
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 12
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 11
- AHZMUXQJTGRNHT-UHFFFAOYSA-N [4-[2-(4-cyanatophenyl)propan-2-yl]phenyl] cyanate Chemical compound C=1C=C(OC#N)C=CC=1C(C)(C)C1=CC=C(OC#N)C=C1 AHZMUXQJTGRNHT-UHFFFAOYSA-N 0.000 description 11
- 239000004065 semiconductor Substances 0.000 description 11
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 8
- 239000004971 Cross linker Substances 0.000 description 8
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 8
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 8
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 8
- 238000011161 development Methods 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 8
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 8
- 235000012431 wafers Nutrition 0.000 description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 7
- 238000004132 cross linking Methods 0.000 description 7
- 230000008021 deposition Effects 0.000 description 7
- 229940116333 ethyl lactate Drugs 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 7
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Substances C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 6
- 238000010899 nucleation Methods 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 6
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 5
- CLDSHFDRKHPKBN-UHFFFAOYSA-N 2-methylprop-2-enoic acid;zirconium Chemical compound [Zr].CC(=C)C(O)=O.CC(=C)C(O)=O.CC(=C)C(O)=O.CC(=C)C(O)=O CLDSHFDRKHPKBN-UHFFFAOYSA-N 0.000 description 5
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- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 125000001072 heteroaryl group Chemical group 0.000 description 5
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 4
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- CKIDCRFWPRVLEU-UHFFFAOYSA-N [3-(benzotriazol-2-yl)-4-hydroxyphenyl] prop-2-enoate Chemical class OC1=CC=C(OC(=O)C=C)C=C1N1N=C2C=CC=CC2=N1 CKIDCRFWPRVLEU-UHFFFAOYSA-N 0.000 description 4
- 239000002318 adhesion promoter Substances 0.000 description 4
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- 239000011256 inorganic filler Substances 0.000 description 4
- 229910003475 inorganic filler Inorganic materials 0.000 description 4
- 238000000608 laser ablation Methods 0.000 description 4
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- 229940059574 pentaerithrityl Drugs 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
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- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 description 3
- SAQPWCPHSKYPCK-UHFFFAOYSA-N carbonic acid;propane-1,2,3-triol Chemical compound OC(O)=O.OCC(O)CO SAQPWCPHSKYPCK-UHFFFAOYSA-N 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
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- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 3
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- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 2
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical class C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 description 2
- ARXKVVRQIIOZGF-UHFFFAOYSA-N 1,2,4-butanetriol Chemical compound OCCC(O)CO ARXKVVRQIIOZGF-UHFFFAOYSA-N 0.000 description 2
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- WMYINDVYGQKYMI-UHFFFAOYSA-N 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Chemical compound CCC(CO)(CO)COCC(CC)(CO)CO WMYINDVYGQKYMI-UHFFFAOYSA-N 0.000 description 2
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 2
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 2
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- GXDMUOPCQNLBCZ-UHFFFAOYSA-N 3-(3-triethoxysilylpropyl)oxolane-2,5-dione Chemical compound CCO[Si](OCC)(OCC)CCCC1CC(=O)OC1=O GXDMUOPCQNLBCZ-UHFFFAOYSA-N 0.000 description 2
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- HKMTVMBEALTRRR-UHFFFAOYSA-N Benzo[a]fluorene Chemical compound C1=CC=CC2=C3CC4=CC=CC=C4C3=CC=C21 HKMTVMBEALTRRR-UHFFFAOYSA-N 0.000 description 2
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- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 2
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- 125000003342 alkenyl group Chemical group 0.000 description 2
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- 230000008859 change Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- MPTQRFCYZCXJFQ-UHFFFAOYSA-L copper(II) chloride dihydrate Chemical group O.O.[Cl-].[Cl-].[Cu+2] MPTQRFCYZCXJFQ-UHFFFAOYSA-L 0.000 description 2
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 2
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 description 2
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- WSFQLUVWDKCYSW-UHFFFAOYSA-M sodium;2-hydroxy-3-morpholin-4-ylpropane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(O)CN1CCOCC1 WSFQLUVWDKCYSW-UHFFFAOYSA-M 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- MDDUHVRJJAFRAU-YZNNVMRBSA-N tert-butyl-[(1r,3s,5z)-3-[tert-butyl(dimethyl)silyl]oxy-5-(2-diphenylphosphorylethylidene)-4-methylidenecyclohexyl]oxy-dimethylsilane Chemical compound C1[C@@H](O[Si](C)(C)C(C)(C)C)C[C@H](O[Si](C)(C)C(C)(C)C)C(=C)\C1=C/CP(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 MDDUHVRJJAFRAU-YZNNVMRBSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- BSYVTEYKTMYBMK-UHFFFAOYSA-N tetrahydrofurfuryl alcohol Chemical compound OCC1CCCO1 BSYVTEYKTMYBMK-UHFFFAOYSA-N 0.000 description 1
- 150000003536 tetrazoles Chemical class 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 125000003441 thioacyl group Chemical group 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- MPSUGQWRVNRJEE-UHFFFAOYSA-N triazol-1-amine Chemical compound NN1C=CN=N1 MPSUGQWRVNRJEE-UHFFFAOYSA-N 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000003631 wet chemical etching Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- CHJMFFKHPHCQIJ-UHFFFAOYSA-L zinc;octanoate Chemical compound [Zn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O CHJMFFKHPHCQIJ-UHFFFAOYSA-L 0.000 description 1
- 229910052726 zirconium Inorganic materials 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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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/14—Monomers containing only one unsaturated aliphatic radical containing one ring substituted by heteroatoms or groups containing heteroatoms
- C08F212/26—Nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/065—Polyamides; Polyesteramides; Polyimides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/315—Compounds containing carbon-to-nitrogen triple bonds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
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- C08K5/3475—Five-membered rings condensed with carbocyclic rings
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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
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
- G03F7/031—Organic compounds not covered by group G03F7/029
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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
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- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
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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
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
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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
- G03F7/16—Coating processes; Apparatus therefor
- G03F7/162—Coating on a rotating support, e.g. using a whirler or a spinner
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- 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
- G03F7/16—Coating processes; Apparatus therefor
- G03F7/168—Finishing the coated layer, e.g. drying, baking, soaking
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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
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2002—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
- G03F7/2004—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image characterised by the use of a particular light source, e.g. fluorescent lamps or deep UV light
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- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/30—Imagewise removal using liquid means
- G03F7/32—Liquid compositions therefor, e.g. developers
- G03F7/325—Non-aqueous compositions
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- G—PHYSICS
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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
Definitions
- Dielectric material requirements for semiconductor packaging applications are continuously evolving. The trend in electronic packaging continues to be towards faster processing speeds, increased complexity and higher packing density while maintaining high level of reliability.
- Current and future packaging architectures include up to 10 redistribution layers and ultra-small features sizes to support high packing density.
- the insulating dielectric material thickness is significantly reduced to accommodate multiple redistribution layers in thin and small form factor.
- Organic dielectric materials with low thermal shrinkage and low cure temperature are suitable for such applications.
- polyimide and polybenzoxazole precursors can be cured at relatively low cure temperature (200 to 300°C) in the presence of a suitable catalyst. However, these materials suffer from appreciable shrinkage during the cure step.
- the resulting cured films have glass-transition temperature in the range of 200 to 230°C which is significantly lower than the solder paste reflow temperature of 260°C. This results in excessive flow of the dielectric film leading to delamination and changes in the critical dimension of patterned structures.
- composition that includes a) at least one cyanate ester compound, the at least one cyanate ester compound containing at least two cyanate groups; and b) at least one dielectric polymer comprising a polybenzoxazole precursor polymer, a polyimide precursor polymer, or a fully imidized polyimide polymer.
- the present disclosure features a dry film that includes a carrier substrate, and a dielectric film supported by the carrier substrate, in which the film is prepared from the dielectric film-forming composition described herein.
- the present disclosure features a process for depositing a metal layer. The process includes a) depositing the dielectric film-forming composition described herein on a substrate to form a dielectric film; b) exposing the dielectric film to radiation or heat or a combination of radiation or heat; c) patterning the dielectric film to form a patterned dielectric film having openings; d) optionally depositing a seed layer on the patterned dielectric film; and e) depositing a metal layer in at least one opening in the patterned dielectric film.
- the present disclosure features a process for forming a dielectric film on a substrate.
- the process includes a) providing a substrate containing copper conducting metal wire structures that form a network of lines and interconnects on the substrate; b) depositing the dielectric film-forming composition described herein on the substrate to form a dielectric film; and c) exposing the dielectric film to radiation or heat or a combination of radiation and heat.
- the present disclosure features a three dimensional object prepared by the process described herein. In some embodiments, the object includes the dielectric film in at least two or three stacks. DETAILED DESCRIPTION OF THE DISCLOSURE
- this disclosure relates to a dielectric film-forming composition (e.g., a photosensitive or non-photosensitive dielectric film-forming composition) that includes: a) at least one cyanate ester compound having at least two cyanate groups (i.e., in one molecule); and b) at least one dielectric polymer containing a polybenzoxazole precursor polymer, a polyimide precursor polymer, or a fully imidized polyimide polymer.
- a dielectric film-forming composition e.g., a photosensitive or non-photosensitive dielectric film-forming composition
- a dielectric film-forming composition that includes: a) at least one cyanate ester compound having at least two cyanate groups (i.e., in one molecule); and b) at least one dielectric polymer containing a polybenzoxazole precursor polymer, a polyimide precursor polymer, or a fully imidized polyimide polymer.
- the dielectric film-forming composition described herein can be either photosensitive or non-photosensitive.
- the composition when the dielectric filmforming composition is photosensitive, the composition can form a film that is capable of generating a solubility change in a developer upon exposure to high energy radiation (such as electron beams, ultraviolet light, and X-ray).
- high energy radiation such as electron beams, ultraviolet light, and X-ray
- the composition can form a negative photosensitive film that can be crosslinked in the exposed area, which has a decreased solubility in a developer.
- the dielectric filmforming composition can include at least one crosslinker and/or at least one catalyst (e.g., a free radical initiator) for inducing crosslinking reactions of the crosslinker, which are in addition to the cyanate ester compound and the dielectric polymer described above.
- the composition when the dielectric film-forming composition is nonphotosensitive, the composition does not have solubility change in a developer upon exposure to high energy radiation.
- the composition may not include any crosslinker and/or catalyst.
- such a composition can include at least one cyanate curing catalyst (e.g., a metal salt) for facilitating the cyanate ester compound to form an interpenetrating network, which can be different from a catalyst for inducing crosslinking reactions of a crosslinker.
- the dielectric film-forming composition described herein can include at least one (e.g., two, three, or four) cyanate ester compound.
- the cyanate ester compound can be cyclized and/or crosslinked thermally (e.g., with or without a catalyst) to form an interpenetrating network with the dielectric polymer. Further, without wishing to be bound by theory, it is believed that including a cyanate ester compound in the dielectric film-forming composition described herein can lower the dielectric constant (K) and/or dissipation factor (DF) of the film formed from the composition.
- K dielectric constant
- DF dissipation factor
- the cyanate ester compounds have Structure (I):
- the aromatic organic group can include aryl and heteroaryl groups.
- aryl used herein refers to a hydrocarbon moiety having one or more aromatic rings.
- aryl moieties include phenyl (Ph), phenylene, naphthyl, naphthylene, pyrenyl, anthryl, and phenanthryl.
- heteroaryl used herein refers to a moiety having one or more aromatic rings that contain at least one heteroatom (e.g., N, O, or S).
- heteroaryl moieties include furyl, furylene, fluorenyl, pyrrolyl, thienyl, oxazolyl, imidazolyl, thiazolyl, pyridinyl, pyrimidinyl, quinazolinyl, quinolyl, isoquinolyl and indolyl.
- a substituted group e.g., a substituted alkyl, alkenyl, alkylene, cycloalkyl, cycloalkylene, aryl, arylalkyl, or heteroaryl group
- a substituted compound include C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C3-C20 cycloalkyl, C3-C20 cycloalkenyl, C3-C20 heterocycloalkyl, C3-C20 heterocycloalkenyl, C1- C10 alkoxy, aryl, aryloxy, heteroaryl, heteroaryloxy, amino, C1-C10 alkylamino, C1-C20 dialkylamino, arylamino, diarylamino, hydroxyl, halogen, thio, C1-C10 alkylthio, arylthio, C1-C10 alkylsul
- A is a substituted or unsubstituted monomeric or oligomeric polycyclic aromatic or heterocyclic aromatic organic group in which the cyanate ester groups are directly bonded to said aromatic organic group.
- R is
- the cyanate ester compounds can have Structure (III):
- ni is an integer of at least 2 (i.e. , ni > 2), n2 and n3 are independently 0 or an integer from 1 to 100
- R 1 is an acid sensitive substituted alkyl, silyl, aryl, or arylalkyl group (e.g., tert-butyl, methoxymethyl, or dimethylphenyl)
- Suitable cyanate ester compounds indude 2-bis(4- cyanatophenyl)propane, hexafiuorobisphenoi A dicyanate, bis(4-cyanate-3,5- dimethylphenyl)methane, 1 ,3-bis(4-cyanatephenyl-1 -(methylethylidene))benzene, bis(4- cyanatephenyi)thioether, and bis(4-cyanatephenyl)ether; a polyfunctional cyanate ester derived from a phenoi novolac, cresoi novolac, or dicyclopentadiene structurecontaining phenol resin, or the like.
- cyanate ester compounds have been described in, e.g., U.S. Patent Nos. 3,595,900; 4,894,414, and 4,785, 034, the contents of which are hereby incorporated by reference.
- two or more cyanate ester compounds can be used in the dielectric film-forming composition described herein.
- the dielectric film-forming composition described herein preferably includes two or more cyanate ester compounds.
- the weight average molecular weight of the cyanate ester resin is not particularly limited.
- the cyanate ester compound can have a weight average molecular weight ranging from at least about 500 Daltons (e.g., at least about 600 Daltons or at least about 1 ,000 Daltons) to at most about 4,500 (e.g., at most about 4,000 Daltons, or at most about 3,000 Daltons).
- the amount of the at least one cyanate ester compound is at least about 2 weight % (e.g., at least about 5 weight %, at least about 10 weight %, at least about 15 weight %, or at least 20 weight%) and/or at most about 55 weight % (e.g., at most about 50 weight %, at most about 45 weight %, at most about 40 weight %, at most about 35 weight%, at most about 30 weight%, or at most about 25 weight %) of the total weight of the dielectric film-forming composition described herein.
- the dielectric film-forming composition described herein can include at least one (e.g., two, three, or four) dielectric polymer selected from the group consisting of polybenzoxazole precursor polymers, polyimide precursor polymers, and fully imidized polyimide polymers.
- the dielectric polymer is a fully imidized polyimide polymer.
- the fully imidized polyimide polymer mentioned herein is at least about 90% (e.g., at least about 95%, at least about 98%, at least about 99%, or about 100%) imidized.
- the preferred fully imidized polyimide polymers are those without having any polymerizing moiety attached to the polymer. Without wishing to be bound by theory, it is believed that including the above polymers in the dielectric film-forming composition described herein can increase the glass transition temperature, decrease the thermal shrinkage, and improve the mechanical properties of the film formed by the composition.
- the dielectric polymer can include one or more (e.g., two, three, or four) cross-linkable groups such that the dielectric polymer can be crosslinked either by itself or with a crosslinker (such as the reactive functional compound described herein).
- cross-linkable groups include are an end group containing a double or triple bond or a side group attached to the main chain of polymer that contains a double or triple bond).
- the weight average molecular weight of the dielectric polymer is at least about 20,000 Daltons (e.g., at least about 25,000 Daltons, at least about 30,000 Daltons, at least about 35,000 Daltons, at least about 40,000 Daltons, at least about 45,000 Daltons, at least about 50,000 Daltons, or at least about 55,000 Daltons) and/or at most about 100,000 Daltons (e.g., at most about 95,000 Daltons, at most about 90,000 Daltons, at most about 85,000 Daltons, at most about 80,000 Daltons, at most about 75,000 Daltons, at most about 70,000 Daltons, at most about 65,000 Daltons, or at most about 60,000 Daltons).
- 20,000 Daltons e.g., at least about 25,000 Daltons, at least about 30,000 Daltons, at least about 35,000 Daltons, at least about 40,000 Daltons, at least about 45,000 Daltons, at least about 50,000 Daltons, or at least about 55,000 Daltons
- 100,000 Daltons e.g., at most about 95,000 Daltons, at most
- polyimide precursor polymer e.g. polyamic acid ester polymers
- Examples of such methods are disclosed in, e.g., U.S. Pat. No. 4,040, 831 , U.S. Pat. No. 4,548, 891 , U.S. Pat. No 5, 834, 581 and U.S. Pat. No 6,511 , 789, the contents of which are hereby incorporated by reference.
- the amount of the dielectric polymer is at least about 2 weight % (e.g., at least about 5 weight %, at least about 10 weight %, at least about 15 weight %, or at least about 20 weight %) and/or at most or about 55 weight % (e.g., at most about 50 weight%, at most about 45 weight%, at most about 40 weight%, at most about 35 weight%, at most about 30 weight%, or at most about 25 weight%) of the total weight of the dielectric film-forming composition.
- the dielectric film-forming composition described herein can further include at least one (e.g., two, three, or four) solvent (e.g., an organic solvent).
- at least one solvent e.g., two, three, or four
- organic solvent e.g., an organic solvent
- organic solvents include, but are not limited to, alkylene carbonates such as ethylene carbonate, propylene carbonate, butylene carbonate, and glycerine carbonate; lactones such as gamma-butyrolactone, s-caprolactone, y-caprolactone and 5-valerolactone; cycloketones such as cyclopentanone and cyclohexanone; linear ketones such as methyl ethyl ketone (MEK) and methyl isobutyl ketone (MIBK); esters such as n-butyl acetate; ester alcohol such as ethyl lactate; ether alcohols such as tetrahydrofurfuryl alcohol; glycol esters such as propylene glycol methyl ether acetate; glycol ethers such as propylene glycol methyl ether (PGME); cyclic ethers such as tetrahydrofuran (THF); and pyrrolidones
- the solvent of the dielectric film-forming composition contains alkylene carbonates such as ethylene carbonate, propylene carbonate, butylene carbonate, glycerine carbonate, or a combination thereof.
- the amount of alkylene carbonate in a solvent mixture is at least about 20% (e.g., at least about 30%, at least about 40%, at least about 50%, at least about 60%, at least about 70%, at least 80%, or at least about 90%) of the dielectric filmforming composition.
- a carbonate solvent e.g., ethylene carbonate, propylene carbonate, butylene carbonate or glycerine carbonate
- a dielectric film with a planarized surface e.g., the difference in the highest and lowest points on a top surface of the dielectric film is less than about 2 microns.
- the amount of the solvent is at least about 20 weight % (e.g., at least about 25 weight %, at least about 30 weight %, at least about 35 weight %, at least about 40 weight %, at least about 45 weight %, at least about 50 weight %, at least about 55 weight %, at least about 60 weight %, or at least about 65 weight %) and/or at most about 98 weight % (e.g., at most about 95 weight %, at most about 90 weight %, at most about 85 weight %, at most about 80 weight %, at most about 75 weight %, at most about 70 weight%, or at most about 60 weight%) of the total weight of the dielectric film-forming composition.
- the dielectric film-forming composition of this disclosure can optionally include at least one (e.g., two, three, or four) catalyst (e.g., an initiator).
- the catalyst is capable of cyclizing and/or crosslinking of cyanate ester, or inducing crosslinking or polymerization reactions when exposed to heat (e.g., a thermoinitiator) and/or a source of radiation (e.g., a photoinitiator such as free radical photoinitiator).
- the dielectric film-forming composition described herein can optionally include at least one (e.g., two, three, or four) cyanate curing catalyst to facilitate the curing of the cyanate ester compound (e.g., to form an interpenetrating network) and/or reduce curing temperature of dielectric film.
- the cyanate curing catalyst can be in either a photosensitive dielectric film-forming composition or a nonphotosensitive dielectric film-forming composition.
- the cyanate curing catalyst can be selected from the group consisting of metal carboxylate salts and metal acetylacetonate salts.
- the metal in the metal carboxylate salts and metal acetylacetonate salts can be selected from the group consisting of zinc, copper, manganese, cobalt, iron, nickel, aluminum, titanium, zirconium, and mixtures thereof.
- cyanate curing catalysts include metal salts such as zirconyl dimethacrylate, zinc octanoate, zinc naphthenate, cobalt naphthenate, copper naphthenate, and acetylacetone iron; phenol compounds such as octylphenol and nonylphenol; alcohols such as 1 -butanol and 2-ethylhexanol; imidazole compounds such as 2-methylimidazole, 2-ethyl-4-methylimidazole, 2-phenylimidazole, 1 -cyanoethyl-2-phenylimidazole, 1 -cyanoethyl-2-ethyl-4-methylimidazole, 2-phenyl-4,5- dihydroxymethylimidazole, and 2-phenyl-4-methyl-5-hydroxymethylimidazole; amine compounds such as dicyandiamide, benzyldimethylamine, and 4-methyl-N,N- dimethylbenzylamine;
- catalysts are commercially available.
- examples of the commercially available catalysts include Amicure PN-23 (trade name, manufactured by Ajinomoto Fine-Techno Co., Inc.), Novacure HX-3721 (trade name, manufactured by Asahi Kasei Corporation.), and Fujicure FX-1000 (trade name, manufactured by Fuji Kasei Kogyo Co., Ltd.).
- Amicure PN-23 trade name, manufactured by Ajinomoto Fine-Techno Co., Inc.
- Novacure HX-3721 trade name, manufactured by Asahi Kasei Corporation.
- Fujicure FX-1000 trade name, manufactured by Fuji Kasei Kogyo Co., Ltd.
- One or a combination of two or more of these catalysts can be used in the composition described herein.
- Other examples of such catalysts have been described in, e.g., U.S. Patent Application number 2018/0105488 and U.S. Patent number 9,822,226, the contents of which are
- the dielectric filmforming composition described herein can optionally include at least one (e.g., two, three, or four) photoinitiator to facilitate crosslinking reactions of a crosslinker (e.g., a reactive functional compound described herein) or crosslinking reactions between a crosslinker and the dielectric polymer (e.g., when it includes a cross-linkable group).
- a crosslinker e.g., a reactive functional compound described herein
- crosslinking reactions between a crosslinker and the dielectric polymer e.g., when it includes a cross-linkable group.
- photoinitiators include, but are not limited to, 1 ,8-octanedione, 1 ,8- bis[9-(2-ethylhexyl)-6-nitro-9H-carbazol-3-yl]-1 ,8-bis(O-acetyloxime), 2-hydroxy-2- methyl-1 -phenylpropan-1-one, 1 -hydroxycyclohexyl phenyl ketone (Irgacure 184 from BASF), a blend of 1 -hydroxycyclohexylphenylketone and benzophenone (Irgacure 500 from BASF), 2,4,4-trimethylpentyl phosphine oxide (Irgacure 1800, 1850, and 1700 from BASF), 2,2-dimethoxyl-2-acetophenone (Irgacure 651 from BASF), bis(2,4,6-trimethyl benzoyl)phenyl phosphine oxide (Irgacure 819
- a photosensitizer can be used in the dielectric filmforming composition where the photosensitizer can absorb light in the wavelength range of 193 to 405 nm.
- photosensitizers include, but are not limited to, 9- methylanthracene, anthracenemethanol, acenaphthylene, thioxanthone, methyl-2- naphthyl ketone, 4-acetylbiphenyl, and 1 ,2-benzofluorene.
- thermal initiators include, but are not limited to, benzoyl peroxide, cyclohexanone peroxide, lauroyl peroxide, tert-amyl peroxybenzoate, tertbutyl hydroperoxide, di(tert-butyl)peroxide, dicumyl peroxide, cumene hydroperoxide, succinic acid peroxide, di(n-propyl)peroxydicarbonate, 2,2-azobis(isobutyronitrile), 2,2- azobis(2,4-dimethylvaleronitrile), dimethyl-2,2-azobisisobutyrate, 4,4-azobis(4- cyanopentanoic acid), azobiscyclohexanecarbonitrile, 2,2-azobis(2-methylbutyronitrile) and the like.
- the amount of the catalyst is at least about 0.2 weight % (e.g., at least about 0.5 weight %, at least about 0.8 weight %, at least about 1 .0 weight %, or at least about 1 .5 weight %) and/or at most about 3.0 weight % (e.g., at most about 2.8 weight %, at most about 2.6 weight %, at most about 2.3 weight %, or at most about 2.0 weight%) of the total weight of the dielectric film-forming composition.
- the dielectric film-forming composition described herein can optionally include at least one (e.g., two, three, or four) reactive functional compound.
- the reactive functional compound can include at least two functional groups (e.g., (meth)acrylate, alkenyl, or alkynyl groups).
- the functional groups on the reactive functional compound are capable of reacting with another molecule of the reactive functional compound or with the dielectric polymer (e.g., when it includes a cross-linkable group).
- the reactive functional compound can be used as a crosslinker in a photosensitive composition to form a negative photosensitive film.
- the reactive functional compound is a compound containing at least two (meth)acrylate groups.
- (meth)acrylate include both acrylates and methacrylates. Examples of such compounds include, but are not limited to, 1 ,3-butylene glycol di(meth)acrylate, 1 ,4-butanediol di(meth)acrylate, 1 ,5-pentanediol di(meth)acrylate, 1 ,6-hexanediol di(meth)acrylate, 1 ,9-nonanediol di(meth)acrylate, 1 ,10-decanediol di(meth)acrylate, 1 ,12-dodecanediol di(meth)acrylate, tetraethyleneglycol di(meth)acrylate, cyclohexane dimethanol di(meth)acrylate, polyethylene glycol di(meth)acrylate, ethylene glycol di(meth)acrylate, ethylene
- the preferred reactive functional compounds are di(meth)acrylate of an unsubstituted/substituted linear, branch or cyclic C1-C10 alkyl or an unsubstituted/substituted aromatic group.
- the reactive functional compound can be used alone or in combination of two or more kinds thereof in the dielectric film-forming composition described herein.
- the amount of the at least one reactive functional compound is at least about 1 weight % (e.g., at least about 2 weight %, at least about 3 weight %, at least about 4 weight %, or at least 5 weight%) and/or at most about 25 weight % (e.g., at most about 20 weight %, at most about 15 weight %, at most about 10 weight %, or at most about 8 weight %)) of the total weight of the dielectric filmforming composition.
- the dielectric film-forming composition can optionally contain at least one mono (meth)acrylate containing compound.
- the at least one mono (meth)acrylate containing compound is selected from the group consisting of bornyl acrylate, isobornyl acrylate, dicyclopentenyloxyethyl acrylate, dicyclopentenylacrylate, dicyclopentenyloxyethyl methacrylate, dicyclopentenyl methacrylate, bicyclo[2.2.2]oct-5-en-2-yl acrylate, 2-[(bicyclo[2.2.2]oct-5-en-2- yl)oxy]ethyl acrylate, 3a,4,5,6,7,7a-hexahydro-1 /-/-4,7-ethanoinden-6-yl acrylate, 2- [(3a,4,5,6,7,7a-hexahydro-1 /-/-4,7-ethanoinden-6-yl)oxy]e
- including at least one mono (meth)acrylate containing compound can enhance the mechanical properties of the film formed by the dielectric film-forming composition described herein (e.g., by forming a polymer and/or reacting (or crosslinking) with the reactive functional compound).
- the dielectric film-forming composition optionally includes one or more (e.g., two, three, or four) inorganic filler.
- the inorganic filler is selected from the group consisting of silica, alumina, titania, zirconia, hafnium oxide, CdSe, CdS, CdTe, CuO, zinc oxide, lanthanum oxide, niobium oxide, tungsten oxide, strontium oxide, calcium titanium oxide, sodium titanate, barium sulfate, barium titanate, barium zirconate, and potassium niobate.
- the inorganic fillers are in a granular form having an average size of about 0.05 - 2.0 microns.
- the filler is an inorganic particle containing a ferromagnetic material.
- Suitable ferromagnetic materials include elemental metals (such as iron, nickel, and cobalt) or their oxides, sulfides and oxyhydroxides, and intermetallics compounds such as Awaruite (NisFe), Wairaruite (CoFe), Coi?Sm2, and Nd2FeuB.
- the amount of the inorganic filler is at least about 1 weight % (e.g., at least about 2 weight %, at least about 5 weight %, at least about 8 weight %, or at least about 10 weight %) and/or at most about 30 weight % (e.g., at most about 25 weight %, at most about 20 weight %, or at most about 15 weight %) of the total weight of the dielectric film-forming composition.
- the dielectric film-forming composition of this disclosure optionally further includes one or more (e.g., two, three, or four) adhesion promoter.
- adhesion promoters are described in “Silane Coupling Agent” Edwin P. Plueddemann, 1982 Plenum Press, New York, the contents of which are hereby incorporated by reference.
- the amount of the optional adhesion promoter is at least about 0.5 weight % (e.g., at least about 0.8 weight %, at least about 1 weight %, or at least about 1 .5 weight %) and/or at most about 4 weight % (e.g., at most about 3.5 weight %, at most about 3 weight %, at most about 2.5 weight %, or at most about 2 weight %) of the total weight of the dielectric film-forming composition.
- the dielectric film-forming composition of this disclosure can also optionally contain one or more (e.g., two, three, or four) surfactant (e.g., ionic or non-ionic surfactants).
- a commercially available surfactant is PolyFox 6320 available from OMNOVA Solutions.
- surfactants include, but are not limited to, the surfactants described in JP-A-62-36663, J P-A-61-226746, JP-A-61 -226745, JP- A-62-170950, JP-A-63-34540, JP-A-7-230165, JP-A-8-62834, JP-A-9-54432 and JP-A- 9-5988, the contents of which are hereby incorporated by reference.
- the amount of the surfactant is at least about 0.005 weight % (e.g., at least about 0.01 weight % or at least about 0.1 weight %) and/or at most about 1 weight % (e.g., at most about 0.5 weight % or at most about 0.2 weight %) of the total weight of the dielectric film-forming composition.
- the dielectric film-forming composition of the present disclosure can optionally contain one or more (e.g., two, three, or four) copper passivation reagent.
- suitable copper passivation reagents include triazole compounds, imidazole compounds and tetrazole compounds.
- Triazole compounds can include triazoles, benzotriazoles, substituted triazoles, and substituted benzotriazoles.
- triazole compounds include, but are not limited to, 1 ,2,4-triazole, 1 ,2,3-triazole, or triazoles substituted with substituents such as C-i-Cs alkyl (e.g., 5-methyltriazole), amino, thiol, mercapto, imino, carboxy and nitro groups.
- benzotriazole tolyltriazole, 5- methyl-1 ,2,4-triazole, 5-phenyl-benzotriazole, 5-nitro-benzotriazole, 3-amino-5- mercapto-1 ,2,4-triazole, 1 -amino-1 ,2,4-triazole, hydroxybenzotriazole, 2-(5-amino- pentyl)-benzotriazole, 1-amino-1 ,2,3-triazole, 1 -amino-5-methyl-1 ,2,3-triazole, 3-amino- 1 ,2,4-triazole, 3-mercapto-1 ,2,4-triazole, 3-isopropyl-1 ,2,4-triazole, 5-phenylth iol- benzotriazole, 2-[3-2H-benzotriazol-2-yl)-4-hydroxyphenyl] ethyl methacrylate (BTZ-AC) halo-benzotriazoles (hal
- imidazole examples include, but are not limited to, 2-alkyl-4-methyl imidazole, 2-phenyl-4-alkyl imidazole, 2-methyl-4(5)-nitroimidazole, 5-methyl-4-nitroimidazole, 4-lmidazolemethanol hydrochloride, and 2-mercapto-1 -methylimidazole.
- tetrazole examples include 1 -H- tetrazole, 5-methyl-1 H-tetrazole, 5-phenyl-1 H-tetrazole, 5-amino-1 H-tetrazole, 1 -phenyl- 5-mercapto-1 H-tetrazole, 5, 5'-bis- 1 H-tetrazole, 1 -methyl-5-ethyltetrazole, 1 -methyl-5- mercaptotetrazole, 1-carboxymethyl-5-mercaptotetrazole, and the like.
- the amount of the optional copper passivation agent, if employed, is at least about 0.1 weight % (e.g., at least about 0.2 weight % or at least about 0.5 weight %) and/or at most about 3.0 weight % (e.g., at most about 2.0 weight % or at most about 1 .0 weight %) of the entire weight of the dielectric film-forming composition of this disclosure.
- the photosensitive dielectric film-forming composition of this disclosure can optionally contain one or more (e.g., two, three, or four) plasticizers, antioxidants, dyes, and/or colorants.
- a dielectric film can be prepared from a dielectric filmforming composition of this disclosure by a process containing the steps of: (a) coating the dielectric film-forming composition described herein on a substrate (e.g. a semiconductor substrate) to form a dielectric film; and (b) optionally baking the film at an elevated temperature (e.g., from about 50°C to about 150°C) for a period of time (e.g., from about 20 seconds to about 600 seconds).
- a substrate e.g. a semiconductor substrate
- an elevated temperature e.g., from about 50°C to about 150°C
- a period of time e.g., from about 20 seconds to about 600 seconds.
- Coating methods for preparation of the dielectric film include, but are not limited to, (1 ) spin coating, (2) spray coating, (3) roll coating, (4) rod coating, (5) rotation coating, (6) slit coating, (7) compression coating, (8) curtain coating, (9) die coating, (10) wire bar coating, (11 ) knife coating and (12) lamination of dry film.
- coating methods (1 ) - (11 ) the dielectric film-forming composition is typically provided in the form of a solution.
- One skilled in the art would choose the appropriate solvent type and solvent concentration based on the coating type.
- Substrates can have circular, square or rectangular shapes such as wafers or panels in various dimensions.
- suitable substrates are epoxy molded compound (EMC), silicon, glass, copper, stainless steel, copper cladded laminate (CCL), aluminum, silicon oxide and silicon nitride.
- Substrates can be flexible such as polyimide, PEEK, polycarbonate, and polyester films.
- Substrates can have surface mounted or embedded chips, dyes, or packages.
- Substrates can be sputtered or precoated with a combination of seed layer and passivation layer.
- the substrates mentioned herein can be a semiconductor substrate.
- a semiconductor substrate is a substrate (e.g., a silicon or copper substrate or wafer) that becomes a part of a final electronic device.
- the thickness of the dielectric film of this disclosure is not particularly limited.
- the dielectric film has a film thickness of at least about 1 micron (e.g., at least about 2 microns, at least about 3 microns, at least about 4 microns, at least about 5 microns, at least about 6 microns, at least about 8 microns, at least about 10 microns, at least about 15 microns, at least about 20 microns, or at least about 25 microns) and/or at most about 100 microns (e.g., at most about 90 microns, at most about 80 microns, at most about 70 microns at most about 60 microns, at most about 50 microns, at most about 40 microns, or at most about 30 microns).
- the thickness of the dielectric film is less than about 5 microns (e.g., less than about 4.5 microns, less than about 4.0 microns, less than about 3.5 microns, less than about 3.0 microns, less than about 2.5 microns, or less than about 2.0 microns).
- the process to prepare a patterned photosensitive dielectric film includes converting the photosensitive dielectric film into a patterned dielectric film by a lithographic process.
- the conversion can include exposing the photosensitive dielectric film to high energy radiation (such as electron beams, ultraviolet light, and X-ray) using a patterned mask.
- the dielectric film can be heat treated to at least about 50°C (e.g., at least about 55°C, at least about 60°C, or at least about 65°C ) to at most about 100°C (e.g., at most about 95°C, or at most about 90°C, at most about 85°C, at most about 80°C, at most about 75°C, or at most about 70°C) for at least about 60 seconds (e.g., at least about 65 seconds, or at least about 70 seconds) to at most about 240 seconds (e.g., at most about 180 seconds, at most about 120 seconds or at most about 90 seconds).
- the heat treatment is usually accomplished by use of a hot plate or oven.
- the dielectric film can be developed to remove unexposed portions by using a developer to form openings or a relief image on the substrate. Development can be carried out by, for example, an immersion method or a spraying method. Microholes and fine lines can be generated in the dielectric film on the laminated substrate after development.
- the dielectric film can be developed by use of an organic developer.
- organic developer examples of such developers can include, but are not limited to, gamma- butyrolactone (GBL), dimethyl sulfoxide (DMSO), N,N-diethylacetamide, methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), 2-heptanone, cyclopentanone (CP), cyclohexanone, n-butyl acetate (nBA), propylene glycol methyl ether acetate (PGMEA), propylene glycol methyl ether (PGME), ethyl lactate (EL), propyl lactate, 3-methyl-3- methoxybutanol, tetralin, isophorone, ethylene glycol monobutyl ether, diethylene glycol monoethyl ether, diethylene glycol monoethyl ether acetate, diethylene glycol dimethyl ether, diethylene glycol methyl
- Preferred developers are gamma- butyrolactone (GBL), cyclopentanone (CP), cyclohexanone, ethyl lactate (EL), n-butyl acetate (nBA) and dimethylsulfoxide (DMSO). More preferred developers are gamma- butyrolactone (GBL), cyclopentanone (CP) and cyclohexanone. These developers can be used individually or in combination of two or more to optimize the image quality for the particular composition and lithographic process.
- the dielectric film can be developed by using an aqueous developer.
- the developer is an aqueous solution, it preferably contains one or more aqueous bases.
- suitable bases include, but are not limited to, inorganic alkalis (e.g., potassium hydroxide, sodium hydroxide), primary amines (e.g., ethylamine, n-propylamine), secondary amines (e.g.
- ком ⁇ онентs e.g., diethylamine, di-/?-propylamine
- tertiary amines e.g., triethylamine
- alcoholamines e.g., triethanolamine
- quaternary ammonium hydroxides e.g., tetramethylammonium hydroxide or tetraethylammonium hydroxide
- concentration of the base employed will vary depending on, e.g., the base solubility of the polymer employed.
- the most preferred aqueous developers are those containing tetramethylammonium hydroxide (TMAH).
- Suitable concentrations of TMAH range from about 1 % to about 5%.
- an optional rinse treatment can be carried out with an organic rinse solvent to remove residues.
- organic rinse solvents include, but are not limited to, alcohols such as isopropyl alcohol, methyl isobutyl carbinol (MIBC), propylene glycol monomethyl ether (PGME), and amyl alcohol; esters such as n-butyl acetate (nBA), ethyl lactate (EL) and propylene glycol monomethyl ether acetate (PGMEA); ketnoes such as methyl ethyl ketone, and mixtures thereof.
- alcohols such as isopropyl alcohol, methyl isobutyl carbinol (MIBC), propylene glycol monomethyl ether (PGME), and amyl alcohol
- esters such as n-butyl acetate (nBA), ethyl lactate (EL) and propylene glycol monomethyl ether acetate (PGMEA)
- ketnoes such as methyl eth
- an optional baking step e.g., post development bake
- a temperature ranging from at least about 120°C (e.g., at least about 130°C, at least about 140°C, at least about 150°C, at least about 160°C, at least about 170°C, or at least about 180°C) to at most about 250°C (e.g., at most about 240°C, at most about 230°C, at most about 220°C, at most about 210°C, at most about 200°C or at most about 190°C).
- the baking time is at least about 5 minutes (e.g., at least about 10 minutes, at least about 20 minutes, at least about 30 minutes, at least about 40 minutes, at least about 50 minutes, or at least about 60 minutes) and/or at most about 5 hours (e.g., at most about 4 hours, at most about 3 hours, at most about 2 hours, or at most about 1 .5 hours).
- This baking step can remove residual solvent from the remaining dielectric film and can further crosslink the remaining dielectric film.
- Post development bake can be done in air or preferably, under a blanket of nitrogen and may be carried out by any suitable heating means.
- the patterned dielectric film includes at least one element having a feature size of at most about 10 microns (e.g., at most about 9 microns, at most about 8 microns, at most about 7 microns, at most about 6 microns, at most about 5 microns, at most about 4 microns, at most about 3 microns, at most about 2 microns, or at most about 1 microns).
- the dielectric films prepared from the dielectric film-forming composition described herein are capable of producing a patterned film with a feature size of at most about 3 microns (e.g., at most 2 microns or at most 1 micron) by a laser ablation process.
- the aspect ratio (ratio of height to width) of a feature (e.g., the smallest feature) of the patterned dielectric film of this disclosure is at least about 1/3 (e.g., at least about 1/2, at least about 1/1 , at least about 2/1 , at least about 3/1 , at least about 4/1 , or at least about 5/1 ).
- the process to prepare patterned dielectric film include converting the dielectric film into patterned dielectric film by a laser ablation technique.
- Direct laser ablation process with an excimer laser beam is generally a dry, one step material removal to form openings (or patterns) in the dielectric film.
- the wavelength of the laser is 351 nm or less (e.g., 351 nm, 308 nm, 248 nm or 193 nm). Examples of suitable laser ablation processes include, but are not limited to, the processes described in US Patent Nos 7,598,167, 6,667,551 , and 6,114,240, the contents of which are hereby incorporated by reference.
- the composition when the dielectric film-forming composition is nonphotosensitive, can be used to form the bottom layer in a bilayer photoresist.
- the top layer of the bilayer photoresist can be a photosensitive layer and can be patterned upon exposure to high energy radiation. The pattern in the top layer can be transferred to the bottom dielectric layer (e.g., by etching). The top layer can then be removed (e.g., by using a wet chemical etching method) to form a patterned dielectric film.
- this disclosure features a process for depositing a metal layer (e.g., to create an embedded copper trace structure) that includes the steps of: (a) forming a patterned dielectric film having openings; and d) depositing a metal layer (e.g., an electrically conductive metal layer) in at least one opening in the patterned dielectric film.
- a metal layer e.g., an electrically conductive metal layer
- the process can include the steps of: (a) depositing a dielectric film-forming composition of this disclosure on a substrate (e.g., a semiconductor substrate) to form a dielectric film; (b) exposing the dielectric film to a source of radiation or heat or a combination thereof (e.g., through a mask); (c) patterning the dielectric film to form a patterned dielectric film having openings; and (d) depositing a metal layer (e.g., an electrically conductive metal layer) in at least one opening in the patterned dielectric film.
- steps (a)-(d) can be repeated one or more (e.g., two, three, or four) times.
- this disclosure features a process to deposit a metal layer (e.g., an electrically conductive copper layer to create an embedded copper trace structure) on a semiconductor substrate.
- a metal layer e.g., an electrically conductive copper layer to create an embedded copper trace structure
- a seed layer conformal to the patterned dielectric film is first deposited on the patterned dielectric film (e.g., outside the openings in the film).
- Seed layer can contain a barrier layer and a metal seeding layer (e.g., a copper seeding layer).
- the barrier layer is prepared by using materials capable of preventing diffusion of an electrically conductive metal (e.g., copper) through the dielectric layer.
- Suitable materials that can be used for the barrier layer include, but are not limited to, tantalum (Ta), titanium (Ti), tantalum nitride (TiN), tungsten nitride (WN), and Ta/TaN.
- a suitable method of forming the barrier layer is sputtering (e.g., PVD or physical vapor deposition). Sputtering deposition has some advantages as a metal deposition technique because it can be used to deposit many conductive materials, at high deposition rates, with good uniformity and low cost of ownership. Conventional sputtering fill produces relatively poor results for deeper, narrower (high-aspect-ratio) features. The fill factor by sputtering deposition has been improved by collimating the sputtered flux. Typically, this is achieved by inserting between the target and substrate a collimator plate having an array of hexagonal cells.
- a thin metal (e.g., an electrically conductive metal such as copper) seeding layer can be formed on top of the barrier layer in order to improve the deposition of the metal layer (e.g., a copper layer) formed in the succeeding step.
- an electrically conductive metal such as copper
- Next step in the process is depositing an electrically conductive metal layer (e.g., a copper layer) on top of the metal seeding layer in the openings of the patterned dielectric film wherein the metal layer is sufficiently thick to fill the openings in the patterned dielectric film.
- the metal layer to fill the openings in the patterned dielectric film can be deposited by plating (such as electroless or electrolytic plating), sputtering, plasma vapor deposition (PVD), and chemical vapor deposition (CVD).
- Electrochemical deposition is generally a preferred method to apply copper since it is more economical than other deposition methods and can flawlessly fill copper into the interconnect features. Copper deposition methods generally should meet the stringent requirements of the semiconductor industry.
- copper deposits should be uniform and capable of flawlessly filling the small interconnect features of the device, for example, with openings of 100 nm or smaller.
- This technique has been described, e.g., in U.S. Patent Nos. 5,891 ,804 (Havemann et al.), 6,399,486 (Tsai et al.), and 7,303,992 (Paneccasio et al.), the contents of which are hereby incorporated by reference.
- the process of depositing an electrically conductive metal layer further includes removing overburden of the electrically conductive metal or removing the seed layer (e.g., the barrier layer and the metal seeding layer).
- the overburden of the electrically conductive metal layer e.g., a copper layer
- the overburden of the electrically conductive metal layer is at most about 3 microns (e.g., at most about 2.8 microns, at most about 2.6 microns, at most about 2.4 microns, at most about 2.2 microns, at most about 2.0 microns, or at most about 1 .8 microns) and at least about 0.4 micron (e.g., at least about 0.6 micron, at least about 0.8 micron, at least about 1 .0 micron, at least about 1 .2 micron, at least about 1 .4 micron or at least about 1 .6 microns).
- Examples of copper etchants for removing copper overburden include an aqueous solution containing cupric chloride and hydrochloric acid or an aqueous mixture of ferric nitrate and hydrochloric acid.
- Examples of other suitable copper etchants include, but are not limited to, the copper etchants described in US Patent Nos. 4,784,785, 3,361 ,674, 3,816,306, 5,524,780, 5,650,249, 5,431 ,776, and 5,248,398, and US Application Publication No.
- Some embodiments describe a process for surrounding a metal structured substrate containing conducting metal (e.g., copper) wire structures forming a network of lines and interconnects with the dielectric film of this disclosure.
- the process can include the steps of: a) providing a substrate containing conducting metal wire structures that form a network of lines and interconnects on the substrate; b) depositing a dielectric film-forming composition of this disclosure on the substrate to form a dielectric film (e.g., that surrounds the conducting metal lines and interconnects; and c) exposing the dielectric film to a source of radiation or heat or a combination of radiation and heat (with or without a mask).
- a source of radiation or heat or a combination of radiation and heat with or without a mask.
- the above steps can be repeated multiple times (e.g., two, three, or four times) to form a complex multi-layered three-dimensional object.
- this disclosure features a method of preparing a dry film structure.
- the method can include: a) coating a carrier substrate (e.g., a substrate including at least one polymeric or plastic film) with a dielectric film-forming composition described herein; b) drying the coated dielectric film-forming composition to form a dry film; and c) optionally, applying a protective layer to the dry film.
- a carrier substrate e.g., a substrate including at least one polymeric or plastic film
- the carrier substrate is a single or multiple layer polymeric or plastic film, which can include one or more polymers (e.g., polyethylene terephthalate).
- the carrier substrate has excellent optical transparency and it is substantially transparent to actinic irradiation used to form a relief pattern in the polymer layer.
- the thickness of the carrier substrate is preferably in the range of at least about 10 pm (e.g., at least about 15 pm, at least about 20 pm, at least about 30 pm, at least about 40 pm, at least about 50 pm or at least about 60 pm) to at most about 150 ⁇ m (e.g., at most about 140 pm, at most about 120 pm, at most about 100 pm, at most about 90 pm, at most about 80 pm, or at most about 70 pm).
- the protective layer is a single or multiple layer film, which can include one or more polymers (e.g., polyethylene or polypropylene).
- polymers e.g., polyethylene or polypropylene.
- carrier substrates and protective layers have been described in, e.g., U.S. Application Publication No. 2016/0313642, the contents of which are hereby incorporated by reference.
- the dielectric film of the dry film can be delaminated from carrier layer as a self-standing dielectric film.
- a self-standing dielectric film is a film that can maintain its physical integrity without using any support layer such as a carrier layer.
- the self-standing dielectric film is not crosslinked or cured and can include the components of the dielectric film-forming composition described above except for the solvent.
- the dielectric loss tangent or dissipation factor of the film prepared from dielectric film-forming composition of this disclosure measured at 10 GHz, 15 GHz, and/or 35 GHz is in the range of from at least about 0.001 (e.g., at least about 0.002, at least about 0.003, at least about 0.004, at least about 0.005, at least about 0.01 , or at least about 0.05) to at most about 0.1 (e.g., at most about 0.08, at most about 0.06, at most about 0.05, at most about 0.04, at most about 0.02, at most about 0.01 , at most about 0.008, at most about 0.006, or at most about 0.005).
- at least about 0.001 e.g., at least about 0.002, at least about 0.003, at least about 0.004, at least about 0.005, at least about 0.01 , or at least about 0.05
- at most about 0.1 e.g., at most about 0.08, at most about 0.06, at most about 0.05, at most about
- the dielectric film of the dry film structure can be laminated to a substrate (e.g., a semiconductor substrate such as a wafer) using a vacuum laminator at about 50°C to about 140°C after pre-laminating of the dielectric film of the dry film structure with a plane compression method or a hot roll compression method.
- a substrate e.g., a semiconductor substrate such as a wafer
- the hot roll lamination the dry film structure can be placed into a hot roll laminator, the optional protective layer can be peeled away from the dielectric film /carrier substrate, and the dielectric film can be brought into contact with and laminated to a substrate using rollers with heat and pressure to form an article containing the substrate, the dielectric film, and the carrier substrate.
- the dielectric film can then be exposed to a source of radiation or heat (e.g., through the carrier substrate) to form a crosslinked photosensitive dielectric film.
- a source of radiation or heat e.g., through the carrier substrate
- the carrier substrate can be removed before exposing the dielectric film to a source of radiation or heat.
- Some embodiments of this disclosure describe a process of generating a planarizing dielectric film on a substrate with copper pattern.
- the process includes depositing a dielectric film-forming composition onto a substrate with copper pattern to form a dielectric film.
- the process includes steps of: a. providing a dielectric film-forming composition of this disclosure, b. depositing the dielectric film-forming composition onto a substrate with copper pattern to form a dielectric film, wherein the difference in the highest and lowest points on a top surface of the dielectric film is less than about 2 microns (e.g., less than 1 .5 microns, less than 1 micron or less than 0.5 micron).
- this disclosure features an article containing at least one patterned dielectric film formed by a process described herein.
- articles include a semiconductor substrate, a flexible film for electronics, a wire isolation, a wire coating, a wire enamel, or an inked substrate.
- this disclosure features semiconductor devices that include one or more of these articles. Examples of semiconductor devices that can be made from such articles include an integrated circuit, a light emitting diode, a solar cell, and a transistor.
- a photosensitive dielectric film-forming composition (CE-1 ) was prepared by using 100 parts of a 29.19 % solution of a polyimide polymer (P-1 ) shown below having a weight average molecular weight of 54,000 Daltons in cyclopentanone, 2.76 parts of cyclopentanone, 41.5 parts of propylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 (a surfactant available from OMNOVA Solutions) in propylene carbonate, 1.46 parts of methacryloxypropyltrimethoxy silane (an adhesion promoter), 0.88 parts of 2-(O-benzoyloxime)-1-[4-(phenylthio)phenyl]-1 ,2-octanedione (Irgacure OXE-1 available from BASF, a photoinitiator), 0.06 parts of monomethyl ether hydroquinone (an antioxidant), 10.95 parts of tetraethylene glycol diacrylate (a reactive functional compound
- the Tg of a dielectric film formed by this composition was 267°C, which is higher than the Tg of a dielectric film formed by Comparative Composition 1 described below (248°C).
- the photosensitive composition CE-1 was spin coated on a silicon wafer and baked at 95°C for 6 minutes using a hot plate to form a coating with a thickness of 7.95 microns.
- the photosensitive polyimide film was exposed at various levels of exposure energy using a Cannon 4000 IE i-line stepper.
- Unexposed portions were removed by using cyclopentanone as a developer (1 x 40 seconds of dynamic development), followed by rinsing the developed film with PGMEA for 15 seconds to form a pattern.
- a resolution of 4 microns at a photospeed of 100 mJ/cm 2 was achieved.
- the film thickness loss was 17.9%.
- a photosensitive dielectric film-forming composition CE-2 was prepared by using 100 parts of a 29.19 % solution of a polyimide polymer (P-1 ) having a weight average molecular weight of 54,000 Daltons in cyclopentanone, 2.76 parts of cyclopentanone, 41 .5 parts of propylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 in propylene carbonate, 1 .46 parts of methacryloxypropyltrimethoxy silane, 0.88 parts of Irgacure OXE-1 , 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of tetraethylene glycol diacrylate, 3.65 parts of pentaerythritol triacrylate, 5.84 parts of 2,2- bis(4-cyanatophenyl)propane and 0.15 parts of 5-methyl benzotriazole. After being stirred mechanically for 24 hours, the solution was filtered by using a 0.2 micron filter (Ul
- the Tg of a dielectric film formed by this composition was 273°C, which is higher than the Tg of a dielectric film formed by Comparative Composition 1 described below (248°C).
- a photosensitive dielectric film-forming composition (CE-3) was prepared by using 100 parts of a 29.19 % solution of a polyimide polymer (P-1 ) having a weight average molecular weight of 54,000 Daltons in cyclopentanone, 2.76 parts of cyclopentanone, 41.5 parts of propylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 in propylene carbonate, 1 .46 parts of methacryloxypropyltrimethoxy silane, 0.88 parts of Irgacure OXE-1 , 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of tetraethylene glycol diacrylate, 3.65 parts of pentaerythritol triacrylate, 4.3 parts of 2,2-bis(4-cyanatophenyl)propane and 0.15 parts of 5-methyl benzotriazole. After being stirred mechanically for 24 hours, the solution was filtered by using a 0.2 micron filter (Ul
- the Tg of a dielectric film formed by this composition was 270°C, which is higher than the Tg of a dielectric film formed by Comparative Composition 1 described below (248°C).
- a photosensitive dielectric film-forming composition (CE-4) was prepared by using 100 parts of a 29.19 % solution of a polyimide polymer (P-1 ) having a weight average molecular weight of 54,000 Daltons in cyclopentanone, 2.76 parts of cyclopentanone, 41.5 parts of propylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 in propylene carbonate, 1.17 parts of methacryloxypropyltrimethoxy silane, 0.29 parts of gamma glycidoxypropyltrimethoxy silane (Silquest A-187), 0.88 parts of Irgacure OXE-1 , 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of tetraethylene glycol diacrylate, 3.65 parts of pentaerythritol triacrylate, 2.92 parts of 2,2- bis(4-cyanatophenyl)propane and 0.15 parts of 5-methyl benzotriazole
- a photosensitive dielectric film-forming composition (CE-5) was prepared by using 100 parts of a 29.19 % solution of a polyimide polymer (P-1 ) having a weight average molecular weight of 54,000 Daltons in cyclopentanone, 2.76 parts of cyclopentanone, 41.5 parts of propylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 in propylene carbonate, 1 .46 parts of gamma glycidoxypropyltrimethoxy silane, 0.88 parts of Irgacure OXE-1 , 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of tetraethylene glycol diacrylate, 3.65 parts of pentaerythritol triacrylate, 2.92 parts of 2,2-bis(4-cyanatophenyl)propane and 0.15 parts of 5-methyl benzotriazole. After being stirred mechanically for 24 hours, the solution was filtered by using a 0.2 micro
- a photosensitive dielectric film-forming composition CCE-1 was prepared by using 100 parts of a 29.19 % solution of a polyimide polymer (P-1 ) having a weight average molecular weight of 54,000 in cyclopentanone, 2.76 parts of cyclopentanone, 41 .5 parts of propylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 in propylene carbonate, 1.46 parts of methacryloxypropyltrimethoxy silane, 0.88 parts Irgacure OXE-1 , 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of tetraethylene glycol diacrylate, 3.65 parts of pentaerythritol triacrylate and 0.15 parts of 5-methyl benzotriazole.
- P-1 polyimide polymer having a weight average molecular weight of 54,000 in cyclopentanone, 2.76 parts of cyclopentanone, 41 .5 parts of propylene carbonate,
- composition CCE-1 did not include a cyanate ester compound.
- the above solution was filtered by using a 0.2 micron filter (Ultradyne from Meissner Corporation, cat # CLTM0.2-552).
- the Tg of a dielectric film formed by this composition was 248°C.
- a photosensitive dielectric film-forming composition was prepared by using 100 parts of a 31 .21 % solution of a polyimide polymer (P-2) having the structure shown below and a weight average molecular weight of 24,500 in GBL, 10.1 parts of GBL, 44.45 parts of propylene carbonate, 1.75 parts of a 0.5 wt% solution of PolyFox 6320 in propylene carbonate, 1.25 parts of methacryloxypropyltrimethoxy silane, 0.31 parts of gamma glycidoxypropyltrimethoxysilane (Silquest A-187), 0.94 parts of Irgacure OXE-1 , 0.06 parts of monomethyl ether hydroquinone, 11 .70 parts of tetraethylene glycol diacrylate, 3.90 parts of pentaerythritol triacrylate, 3.12 parts of 2,2-bis(4- cyanatophenyl)propane and 0.16 parts of 5-methyl benzotriazole. After being
- a photosensitive dielectric film-forming composition CE-7 is prepared by using 100 parts of a 29.19 % solution of a polyimide polymer (P-1 ) having weight average molecular weight of 54,000 Daltons in cyclopentanone, 2.76 parts of cyclopentanone, 41 .5 parts of propylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 in propylene carbonate, 1 .46 parts of triethoxy silylpropyl ethylcarbamate, 0.88 parts of 1 - [9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]ethanone 1 -(O-acetyloxime) (Irgacure OXE-2 from BASF), 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of 1 ,6- hexanediol dimethacrylate, 3.65 parts of 1 ,3-butanediol
- a photosensitive dielectric film-forming composition (CE-8) is prepared by using 30 parts of a polybenzoxazole precursor polymer described in Synthetic Example 3 (polymer P-3) of US Patent No. 6,929,891 , 2.76 parts of cyclopentanone, 41 .5 parts of propylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 (available from OMNOVA Solutions) in propylene carbonate, 1 .46 parts of 3- (triethoxysilyl)propylsuccinic anhydride, 0.88 parts of 1 ,8-bis[9-(2-ethylhexyl)-6-nitro-9H- carbazol-3-yl]-1 ,8-bis(O-acetyloxime), 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of tetraethyleneglycol dimethacrylate, 3.65 parts of 1 ,4-butanediol triacrylate, 1 .46 parts of
- a photosensitive dielectric film-forming composition (CE-9) is prepared by using 30 parts of a 29.19 % solution of a polyamic acid ester produced from 4,4’-oxidiphthalic anhydride (ODPA), 4,4’-diaminophenyl ether (ODA) (polymer P-4), and 2-hydroxyethyl methacrylate, 2.76 parts of cyclopentanone, 41 .5 parts of propylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 in propylene carbonate, 1.17 parts of 3- (triethoxysilyl)propylsuccinic anhydride, 0.29 parts of gamma glycidoxypropyltrimethoxysilane (Silquest A-187), 0.88 parts of 1 -hydroxycyclohexyl phenyl ketone (Irgacure 184 from BASF), 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of 1 ,12
- a photosensitive dielectric film-forming composition (CE-10) is prepared by using 100 parts of a 29.19 % solution of a polyimide polymer (P-1 ) having a weight average molecular weight of 54,000 in cyclopentanone, 2.76 parts of cyclopentanone, 41 .5 parts of propylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 in propylene carbonate, 1.17 parts of 2-cyanoethyltriethoxysilane, 0.29 parts of gamma glycidoxypropyltrimethoxysilane (Silquest A-187), 0.88 parts of NCI-831 (ADEKA Corp.), 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of 1 ,3-butylene glycol dimethacrylate, 3.65 parts of dipentaerythritol pentamethacrylate, 2.92 parts of BP-M (available from Hunstman as AroCy®X
- a photosensitive dielectric film-forming composition (CE-11 ) is prepared by using 100 parts of a 29.19 % solution of a polyimide polymer (P-1 ) having a weight average molecular weight of 54,000 in cyclopentanone, 2.76 parts of cyclopentanone, 41 .5 parts of ethylene carbonate, 1 .75 parts of a 0.5 wt% solution of PolyFox 6320 in ethylene carbonate, 1.17 parts of (N,N-diethylaminopropyl)trimethoxysilane, 0.29 parts of gamma glycidoxypropyltrimethoxysilane (Silquest A-187), 0.88 parts of NCI-930 (ADEKA Corp.), 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of polyethylene glycol dimethacrylate, 3.65 parts of propoxylated (3) glycerol tri(meth)acrylate, 2.92 parts of DCP Novolak (Product Primaset® DT-4000), 2.
- a photosensitive dielectric film-forming composition CE-12 is prepared by using 100 parts of a 29.19 % solution of a polyimide polymer (P-1 ) having a weight average molecular weight of 54,000 in cyclopentanone, 2.76 parts of cyclopentanone, 41 .5 parts of butylene carbonate, 1.75 parts of a 0.5 wt% solution of PolyFox 6320 in butylene carbonate, 1.17 parts of 3-trimethoxysilylpropyl thiol, 0.29 parts of gamma glycidoxypropyltrimethoxysilane (Silquest A-187), 0.88 parts of Irgacure OXE-1 , 0.06 parts of monomethyl ether hydroquinone, 10.95 parts of cyclohexane dimethanol diacrylate, 3.65 parts of ditrimethylolpropane tetramethacrylate, 2.92 parts of DCP Novolak (Product Primaset® DT-4000), 2.92 parts of silica
- a photosensitive dielectric film-forming composition CE-13 is prepared by using 100 parts of a 31 .21 % solution of a polyimide polymer (P-4) having the structure shown below and a weight average molecular weight of 74,500 Daltons in cyclopentanone, 10.1 parts of cyclopentanone, 44.45 parts of propylene carbonate, 1.75 parts of a 0.5 wt% solution of PolyFox 6320 in propylene carbonate, 1 .25 parts of methacryloxypropyltrimethoxy silane, 0.31 parts of gamma glycidoxypropyltrimethoxysilane (Silquest A-187), 0.94 parts of Irgacure OXE-1 , 0.06 parts of monomethyl ether hydroquinone, 11 .70 parts of 1 ,4-butanediol dimethacrylate, 3.90 parts of pentaerythritol tetracrylate, 3.12 parts of 2,2-bis(4-cyanato
- a photosensitive dielectric film-forming composition was prepared by using
- This photosensitive dielectric film-forming composition was applied using a slot die coater from Fujifilm USA (Greenwood, SC) with a line speed of 2 feet/minutes (61 cm per minutes) with 60 microns clearance onto a polyethylene terephthalate (PET) film (TCH21 , manufactured by DuPont Teijin Films USA) having a width of 16.2" and thickness of 36 microns used as a carrier substrate and dried at 194°F to obtain a photosensitive polymeric layer with a thickness of approximately 12.0 microns.
- PET polyethylene terephthalate
- a biaxially oriented polypropylene film having width of 16" and thickness of 30 microns (BOPP, manufactured by Impex Global, Houston, TX) was laid over by a roll compression to act as a protective layer.
- the carrier substrate, the photosensitive polymeric layer, and the protective layer together formed a dry film (i.e. , DF-1 )
- a filtered polymer solution was applied via spin coating onto a silicon oxide wafer to obtain a film with a thickness of approximately 21 .0 microns to 23.0 microns.
- the coating was dried on a hot plate oven at 90°C for 10 minutes.
- the film was then exposed to 500mJ/cm 2 .
- the film was baked at 170°C for 2 hours under vacuum using YES oven.
- the film was delaminated from silicon oxide layer by using 2% hydrofluoric acid solution and dried in air at 50°C for 8 hours. After cooling to room temperature, the film was characterized by DMA for Tg measurement.
- Composition Examples 1 -3 (CE-1 to CE-3) and Comparative Composition
- Example 1 (CCE-1 ) were used to prepare dielectric films as described above. Their Tg measurements are summarized in Table 1.
- Photosensitive Composition Example 4 (CE-4) is spin-coated at 1200 rpm onto a silicon oxide wafer with copper-plated line/space/height pattern ranging from 8/8/6 microns to 15/15/6 microns.
- the coated dielectric film is baked at 95°C for 5 minutes using a hot plate to a film thickness of about 13 microns.
- the photosensitive dielectric film is then blanket exposed at 500 mJ/cm 2 by using an LED i-line exposure tool.
- the dielectric film is cured at 170°C for 2 hours in a YES oven to form a three-dimensional object where individual copper structures are surrounded by the dielectric film.
- Photosensitive Composition Example 1 (CE-1 ) is spin-coated at 1200 rpm onto a PVD-copper wafer. This film is then baked at 95°C for 6 minutes using a hot plate to produce a film with a thickness of 8 pm.
- the photosensitive layer is exposed with a Canon i-line stepper (NA 0.45, SIGMA 0.7) through a trench test pattern reticle at a fixed dose of 500 mJ/cm 2 and -1 pm fixed focus.
- the exposed layer is then developed by using dynamic development of cyclopentanone/PGMEA as solvents for 40 seconds to resolve trenches of dimensions of 50 pm and below including ultrafine 4 pm trench patterns as observed by an optical microscope (and confirmed by cross-section scanning electron microscope (SEM).
- the dielectric layer thus formed is cured at 170°C for 2 hours in a YES oven.
- the wafer is then electroplated and 3.0 pm high copper lines are produced in all trenches as observed by SEM. Electrodeposition of copper is achieved using a electrolyte composition containing copper ion (30 g/L), sulfuric acid (50 g/L), chloride ion (40 ppm), polypropylene glycol) (500 ppm), disodium 3, 3-dithiobis(1 -propanesulfonate (200 ppm), and bis(sodium sulfopropyl) disulfide (100 pm).
- Electroplating is performed in a beaker while stirring using the following conditions: Anode: Copper; Plating temperature: 25°C; Current density: 10 mA/cm 2 ; and Time: 2 minutes. After plating, the fine trenches are cut and the copper filling conditions are inspected using optical and scanning electron microscopes to confirm that the copper is completely filled without any voids. The time of deposition is controlled to avoid overburden.
- a dielectric film-forming composition CE-14 was prepared by using 100 parts of a 50% solution of BA-200 (i.e. , (2,2-bis(4-cyanatophenyl)propane available from Lonza) in GBL, 17.65 parts of a 28.2% solution of a polyimide polymer (P-1 ) having a weight average molecular weight of 54,000 in GBL, 7.06 parts of a 0.5 wt% solution of PolyFox 6320 (available from OMNOVA Solutions) in GBL, 0.5 parts of zirconyl dimethacrylate (a cyanate curing catalyst), 0.09 parts of dicumyl peroxide, 4.71 parts of 2-hydroxy-5- acrylyloxyphenyl-2H-benzotriazoles. After being stirred mechanically for 24 hours, the solution was filtered by using a 0.2 micron filter (Ultradyne from Meissner Corporation, cat # CLTM0.2-552).
- BA-200 i.e. , (2,2-bis(4
- a dielectric film-forming composition CE-15 was prepared by using 100 parts of a 50% solution of XU-378 (Bisphenol M Cyanate ester available from Huntsman) in GBL, 17.65 parts of a 28.2% solution of a polyimide polymer (P-1 ) having a weight average molecular weight of 54,000 in GBL, 7.06 parts of a 0.5 wt% solution of PolyFox 6320 (available from OMNOVA Solutions) in GBL, 0.5 parts of zirconyl dimethacrylate, 0.09 parts of dicumyl peroxide, 4.71 parts of 2-hydroxy-5-acrylyloxyphenyl-2H- benzotriazoles. After being stirred mechanically for 24 hours, the solution was filtered by using a 0.2 micron filter (Ultradyne from Meissner Corporation, cat # CLTM0.2-552). Composition Example 16 (CE-16)
- a dielectric film-forming composition CE-16 was prepared by using 100 parts of a 50% solution of BA-200 (i.e. , 2,2-bis(4-cyanatophenyl)propane available from Lonza) in GBL, 17.65 parts of a 25% solution of a Durimide 200 polyimide polymer (available from Huntsman) in GBL, 7.06 parts of a 0.5 wt% solution of PolyFox 6320 (available from OMNOVA Solutions) in GBL, 0.5 parts of zirconyl dimethacrylate, 0.09 parts of dicumyl peroxide, 4.71 parts of 2-hydroxy-5-acrylyloxyphenyl-2H-benzotriazoles. After being stirred mechanically for 24 hours, the solution was filtered by using a 0.2 micron filter (Ultradyne from Meissner Corporation, cat # CLTM0.2-552).
- BA-200 i.e. , 2,2-bis(4-cyanatophenyl)propane available from Lonza
- a dielectric film-forming composition CE-17 was prepared by using 50 parts of a 50% solution of BA-200 (i.e., 2,2-bis(4-cyanatophenyl)propane available from Lonza) in GBL, 50 parts of a 50% solution of XU-378 (available from Huntsman) in GBL, 17.65 parts of a 31 .21 % solution of a polyimide polymer (P-4) having a weight average molecular weight of 74,500 Daltons in GBL, a 28.2% solution of a polyimide polymer (P- 1 ) having a weight average molecular weight of 54,000 in GBL, 7.06 parts of a 0.5 wt% solution of PolyFox 6320 (available from OMNOVA Solutions) in GBL, 0.5 parts of zirconyl dimethacrylate, 0.09 parts of dicumyl peroxide, 4.71 parts of 2-hydroxy-5- acrylyloxyphenyl-2H-benzotriazoles. After being stirred mechanically for 24 hours
- Table 2 summarizes the dielectric constant (K) and dissipation factor (DF) for Compositions CE-14 to CE-16.
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TWI519602B (en) * | 2014-06-06 | 2016-02-01 | Elite Material Co Ltd | Low dielectric resin composition and the application of its resin film, semi-cured film and circuit board |
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- 2021-10-15 TW TW110138370A patent/TW202227559A/en unknown
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US20060183872A1 (en) * | 2005-02-15 | 2006-08-17 | Samsung Electro-Mechanics Co., Ltd. | Resin composition for embedded capacitors having excellent adhesive strength, heat resistance and flame retardancy |
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Also Published As
Publication number | Publication date |
---|---|
US20220127459A1 (en) | 2022-04-28 |
EP4232421A4 (en) | 2024-03-27 |
CN116635571A (en) | 2023-08-22 |
EP4232421A1 (en) | 2023-08-30 |
TW202227559A (en) | 2022-07-16 |
JP2023546954A (en) | 2023-11-08 |
KR20230092976A (en) | 2023-06-26 |
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