JP7059321B2 - 研磨パッド用組成物、研磨パッドおよび半導体素子の製造方法 - Google Patents
研磨パッド用組成物、研磨パッドおよび半導体素子の製造方法 Download PDFInfo
- Publication number
- JP7059321B2 JP7059321B2 JP2020104694A JP2020104694A JP7059321B2 JP 7059321 B2 JP7059321 B2 JP 7059321B2 JP 2020104694 A JP2020104694 A JP 2020104694A JP 2020104694 A JP2020104694 A JP 2020104694A JP 7059321 B2 JP7059321 B2 JP 7059321B2
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- JP
- Japan
- Prior art keywords
- diisocyanate
- weight
- toluene
- urethane
- reacted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005498 polishing Methods 0.000 title claims description 143
- 239000000203 mixture Substances 0.000 title claims description 75
- 239000004065 semiconductor Substances 0.000 title claims description 31
- 238000000034 method Methods 0.000 title claims description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 133
- 239000000178 monomer Substances 0.000 claims description 110
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 77
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 claims description 51
- 125000005442 diisocyanate group Chemical group 0.000 claims description 49
- 229920005862 polyol Polymers 0.000 claims description 36
- 150000003077 polyols Chemical class 0.000 claims description 36
- 239000003795 chemical substances by application Substances 0.000 claims description 25
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- 239000000758 substrate Substances 0.000 claims description 15
- 239000007795 chemical reaction product Substances 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 12
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- 238000001879 gelation Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 description 40
- 239000010410 layer Substances 0.000 description 37
- 239000002994 raw material Substances 0.000 description 12
- 230000000704 physical effect Effects 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 10
- -1 H12MDI) Chemical compound 0.000 description 10
- 229920005749 polyurethane resin Polymers 0.000 description 10
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 9
- 239000011261 inert gas Substances 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 8
- 239000007790 solid phase Substances 0.000 description 8
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 230000003750 conditioning effect Effects 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 4
- 239000004831 Hot glue Substances 0.000 description 4
- 238000005481 NMR spectroscopy Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 239000003094 microcapsule Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical group C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 description 2
- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 2
- PISLZQACAJMAIO-UHFFFAOYSA-N 2,4-diethyl-6-methylbenzene-1,3-diamine Chemical compound CCC1=CC(C)=C(N)C(CC)=C1N PISLZQACAJMAIO-UHFFFAOYSA-N 0.000 description 2
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 description 2
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229940100573 methylpropanediol Drugs 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920000909 polytetrahydrofuran Polymers 0.000 description 2
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- ICLCCFKUSALICQ-UHFFFAOYSA-N 1-isocyanato-4-(4-isocyanato-3-methylphenyl)-2-methylbenzene Chemical compound C1=C(N=C=O)C(C)=CC(C=2C=C(C)C(N=C=O)=CC=2)=C1 ICLCCFKUSALICQ-UHFFFAOYSA-N 0.000 description 1
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- 241001112258 Moca Species 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical group NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005305 interferometry Methods 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
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- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
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- 238000007086 side reaction Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
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- 125000003944 tolyl group Chemical group 0.000 description 1
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical group NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
- B24B37/20—Lapping pads for working plane surfaces
- B24B37/24—Lapping pads for working plane surfaces characterised by the composition or properties of the pad materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/724—Combination of aromatic polyisocyanates with (cyclo)aliphatic polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
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- C—CHEMISTRY; METALLURGY
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Description
一実現例による組成物は、ウレタン系プレポリマーを含み、前記ウレタン系プレポリマーは、1種以上のジイソシアネートモノマーと1種以上のポリオールとの予備重合反応生成物を含み、前記1種以上のジイソシアネートモノマーは1種以上の芳香族ジイソシアネートモノマーを含み、前記1種以上の芳香族ジイソシアネートモノマーがトルエン2,4-ジイソシアネートおよびトルエン2,6-ジイソシアネートを含む。
前記ウレタン系プレポリマーは、1種以上のジイソシアネートモノマーと1種以上のポリオールとの予備重合反応生成物を含む。予備重合反応とは、一般に、最終ポリマー成形品を製造するに当たり、成形しやすいようにモノマーの重合を中間段階で停止させ、比較的低い分子量のポリマーを得る反応のことを意味する。したがって、予備重合反応生成物を含むプレポリマーは、それ自体で、または他の重合性化合物や硬化剤とさらに反応して最終製品に形成され得る。例えば、前記ウレタン系プレポリマーの重量平均分子量(Mw)は、500g/mol~3000g/mol、600g/mol~2000g/mol、または700g/mol~1500g/molであり得る。
前記ウレタン系プレポリマーは、ジイソシアネートモノマーとポリオールとの間の様々な分子量の重合反応物を含む。
特に、前記ウレタン系プレポリマーの調製に用いられる1種以上のジイソシアネートモノマーは、1種以上の芳香族ジイソシアネートモノマーを含み、このような1種以上の芳香族ジイソシアネートモノマーは、高い割合で予備重合反応に関与する。
前記実現例によるウレタン系プレポリマーに含まれる芳香族ジイソシアネートモノマーは、トルエン2,4-ジイソシアネートおよびトルエン2,6-ジイソシアネートを含む。
また、前記ウレタン系プレポリマーを調製するための反応に使用された化合物のうちの一部は、反応に関与しないこともある。したがって、前記ウレタン系プレポリマー内には、反応に関与していないまま残っている化合物も存在し得る。具体的に、前記ウレタン系プレポリマーは未反応のジイソシアネートモノマーを含み得る。
前記ウレタン系プレポリマーの反応に用いられる1種以上の芳香族ジイソシアネートモノマーは、トルエン2,4-ジイソシアネートおよびトルエン2,6-ジイソシアネートを含み、このうちトルエン2,6-ジイソシアネートは相対的に反応性が低いので、ポリオールと反応されないままウレタン系プレポリマー内に存在し得る。
前記ウレタン系プレポリマーは、これに含まれているポリマー、オリゴマー、またはモノマーの末端に、未反応のNCO基を有し得る。
前記ウレタン系プレポリマーは、前述のように1種以上のジイソシアネートモノマーと1種以上のポリオールとを予備重合反応させて調製され得る。
前記硬化剤は、アミン化合物およびアルコール化合物中の1種以上であり得る。具体的に、前記硬化剤は、芳香族アミン、脂肪族アミン、芳香族アルコール、および脂肪族アルコールからなる群より選択される1つ以上の化合物を含み得る。
前記発泡剤は、研磨パッドの空隙の形成に通常使用されるものであれば、特に制限しない。
前記組成物は、硬化によりゲル化されるまで一定の時間がかかるが、これをゲル化時間(gel time)という。
前記ゲル化時間は、例えば70℃にて測定された値であり得る。
前記組成物は、硬化後の引張強度、伸び率、硬度等のような機械的物性が特定の範囲に調節され得る。
前記組成物は、硬化後に多数の微細気孔を有し得る。
一実現例による研磨パッドの製造方法は、前記実現例による組成物を硬化させながら成形する段階を含む。
一実現例による研磨パッドは、前記実現例による組成物の硬化物を含む研磨層を含む。
前記微細気孔の平均径は10μm~50μm、20μm~50μm、20μm~40μm、20μm~30μm、または30μm~50μmであり得る。具体的な一例として、前記微細気孔は20μm~25μmの平均径を有し得る。
一実現例による半導体素子の製造方法は、前述の研磨パッドを用いて半導体基板の表面を研磨する段階を含む。
以下、実施例によりさらに具体的に説明するが、これらの実施例の範囲に限定されるものではない。
(1)ウレタン系プレポリマーの調製
トルエン2,4-ジイソシアネート(2,4-TDI)、トルエン2,6-ジイソシアネート(2,6-TDI)、ポリテトラメチレンエーテルグリコール(PTMEG)、およびジシクロヘキシルメタンジイソシアネート(H12MDI)を4口フラスコに投入し、80℃にて反応させた後、ジエチレングリコール(DEG)をさらに投入し、80℃にてさらに2時間反応した。この過程で投入されるそれぞれのジソイアネートおよびポリオールの種類別含有量、および反応条件を調節して、様々な組成のウレタン系プレポリマーを調製した。
プレポリマー、硬化剤、不活性ガス、発泡剤等の原料をそれぞれ供給するためのタンクおよび投入ラインが備えられているキャスティング装置を準備した。前記調製されたウレタン系プレポリマー、硬化剤(4,4'-メチレンビス(2-クロロアニリン)、Ishihara社)、不活性ガス(N2)、液相発泡剤(FC3283、3M社)、固相発泡剤(Akzonobel社)、およびシリコーン系界面活性剤(Evonik社)をそれぞれのタンクに充填した。各々の投入ラインを介して原料をミキシングヘッドに一定の速度で投入しながら撹拌した。この際、プレポリマーと硬化剤とは、1:1の当量比および10kg/分の合計量で投入された。
前記実施例および比較例で得られた研磨パッドを、以下の項目について試験し、その結果を下記の表に示した。
サンプルを5cm×5cm(厚さ:2mm)に裁断し、温度25℃にて12時間保管後、硬度計(HPE III ショアD)を用いて硬度を測定した。
サンプルを2cm×5cm(厚さ:2mm)に裁断して、温度25℃にて12時間保管後、比重計(MD-300S)を使用して比重を測定した。
サンプルを4cm×1cm(厚さ:2mm)に裁断して、万能試験機(UTM、AG-X Plus)を使用して、50mm/分の速度において破断寸前の最高強度値を測定した。
サンプルを4cm×1cm(厚さ:2mm)に裁断して、万能試験機(UTM、AG-X Plus)を使用して、50mm/分の速度において破断寸前の最大変形量を測定した後、最初長さに対する最大変形量の割合を百分率(%)で示した。
プレポリマーと硬化剤を1:1当量で配合し、5000rpmで撹拌され出てくる混合液が、70℃にてゲル化するまでにかかる時間を測定した。
研磨パッドの製造直後の初期研磨率を以下のように測定した。
直径300mmのシリコン素材の半導体基板に、酸化ケイ素を化学気相蒸着(CVD)工程により蒸着した。CMP装置に研磨パッドを付着して、半導体基板の酸化ケイ素層が研磨パッドの研磨面を向くように設置した。研磨パッド上にか焼セリアスラリーを250mL/分の速度で供給しながら、4.0psiの荷重および150rpmの速度で50秒間酸化ケイ素膜を研磨した。研磨後の半導体基板をキャリアから外して、回転式脱水機(spin dryer)に装着して蒸留水で洗浄した後、窒素により15秒間乾燥した。乾燥した半導体基板に対して分光干渉式ウェーハ厚み計(SI-F80R、Keyence社)を使用して、研磨前後の膜厚変化を測定した。以降、下記式に基づいて研磨率を計算した。その結果を下記表に示した。
研磨率(Å/50秒)=研磨前後の膜厚変化(Å)/研磨時間(50秒)
研磨パッドを10分間脱イオン水でフリーコンディショニングを行った後、脱イオン水を1時間噴射しながらダイヤモンドディスクを用いたコンディショナーにてコンディショニングを行った(Conditioner type:CI45、Conditioning type:In situ, Conditioner force:5.0lb, Conditioner rpm:101.0rpm, Conditioner sweep speed:19.0sw/min, DIW flow rate:250cc/min)。コンディショニングの過程で変化した厚さを測定し、研磨パッドの切削率を算出した。その結果を下記表に示した。
Claims (9)
- ウレタン系プレポリマーを含み、
前記ウレタン系プレポリマーは、1種以上のジイソシアネートモノマーと1種以上のポリオールとの予備重合反応生成物を含み、
前記1種以上のジイソシアネートモノマーは1種以上の芳香族ジイソシアネートモノマーを含み、
前記1種以上の芳香族ジイソシアネートモノマーがトルエン2,4-ジイソシアネートおよびトルエン2,6-ジイソシアネートを含み、
前記ウレタン系プレポリマーが、1個のNCO基が反応されたトルエン2,4-ジイソシアネートおよび未反応のトルエン2,6-ジイソシアネートを100:0~4の重量比で含み、
前記ウレタン系プレポリマーが、
1個のNCO基が反応されたトルエン2,4-ジイソシアネートおよび2個のNCO基が反応されたトルエン2,4-ジイソシアネートを100:14~28の重量比で含む、組成物。 - 前記ウレタン系プレポリマーが、
前記1種以上の芳香族ジイソシアネートモノマーの総重量を基準に、1個のNCO基が反応されたトルエン2,4-ジイソシアネートおよび1個のNCO基が反応された2,6-ジイソシアネートを、合計78重量%~95重量%で含む、請求項1に記載の組成物。 - 前記ウレタン系プレポリマーが、
1個のNCO基が反応されたトルエン2,4-ジイソシアネートおよび1個のNCO基が反応されたトルエン2,6-ジイソシアネートを100:1~23の重量比で含む、請求項1に記載の組成物。 - 前記ウレタン系プレポリマーが、
前記1種以上の芳香族ジイソシアネートモノマーの総重量を基準に、
未反応のトルエン2,6-ジイソシアネートを0~1.92重量%以下で含み、
2個のNCO基が反応されたトルエン2,4-ジイソシアネートを11.90重量%~20.16重量%で含み、
1個のNCO基が反応されたトルエン2,4-ジイソシアネートを71.64重量%~78.55重量%で含み、
1個のNCO基が反応されたトルエン2,6-ジイソシアネートを1.05重量%~16.46重量%で含む、請求項1に記載の組成物。 - 前記ウレタン系プレポリマーが、前記ウレタン系プレポリマーの総重量を基準に、未反応のNCO基を5重量%~9重量%で含む、請求項1に記載の組成物。
- 前記組成物が120秒~220秒のゲル化時間を有し、
硬化後に40ショアD~50ショアDの硬度、10N/mm2~25N/mm2の引張強度、および200%~350%の伸び率を有する、請求項1に記載の組成物。 - 研磨層を含み、前記研磨層は、ウレタン系プレポリマー、硬化剤、および発泡剤を含む組成物の硬化物を含み、
前記ウレタン系プレポリマーは、1種以上のジイソシアネートモノマーと1種以上のポリオールとの予備重合反応生成物を含み、前記1種以上のジイソシアネートモノマーは1種以上の芳香族ジイソシアネートモノマーを含み、前記1種以上の芳香族ジイソシアネートモノマーがトルエン2,4-ジイソシアネートおよびトルエン2,6-ジイソシアネートを含み、
前記ウレタン系プレポリマーが、1個のNCO基が反応されたトルエン2,4-ジイソシアネートおよび未反応のトルエン2,6-ジイソシアネートを100:0~4の重量比で含み、
前記ウレタン系プレポリマーが、
1個のNCO基が反応されたトルエン2,4-ジイソシアネートおよび2個のNCO基が反応されたトルエン2,4-ジイソシアネートを100:14~28の重量比で含む、研磨パッド。 - 前記研磨層が平均径20μm~25μmの微細気孔を含み、
前記研磨パッドが1000Å/50秒~2500Å/50秒の研磨率(removal rate)を有する、請求項7に記載の研磨パッド。 - 研磨パッドを用いて半導体基板の表面を研磨する段階を含み、
前記研磨パッドは研磨層を含み、前記研磨層はウレタン系プレポリマー、硬化剤、および発泡剤を含む組成物の硬化物を含み、
前記ウレタン系プレポリマーは、1種以上のジイソシアネートモノマーと1種以上のポリオールとの予備重合反応生成物を含み、前記1種以上のジイソシアネートモノマーは1種以上の芳香族ジイソシアネートモノマーを含み、前記1種以上の芳香族ジイソシアネートモノマーがトルエン2,4-ジイソシアネートおよびトルエン2,6-ジイソシアネートを含み、
前記ウレタン系プレポリマーが、1個のNCO基が反応されたトルエン2,4-ジイソシアネートおよび未反応のトルエン2,6-ジイソシアネートを100:0~4の重量比で含み、
前記ウレタン系プレポリマーが、
1個のNCO基が反応されたトルエン2,4-ジイソシアネートおよび2個のNCO基が反応されたトルエン2,4-ジイソシアネートを100:14~28の重量比で含む、半導体素子の製造方法。
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KR102202076B1 (ko) * | 2018-12-26 | 2021-01-12 | 에스케이씨 주식회사 | 연마패드용 조성물, 연마패드 및 이의 제조방법 |
US12064846B2 (en) * | 2021-01-21 | 2024-08-20 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Formulations for high porosity chemical mechanical polishing pads with high hardness and CMP pads made therewith |
US11806830B2 (en) * | 2021-01-21 | 2023-11-07 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Formulations for chemical mechanical polishing pads and CMP pads made therewith |
US11813713B2 (en) * | 2021-01-21 | 2023-11-14 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Chemical mechanical polishing pad and polishing method |
US12064845B2 (en) * | 2021-01-21 | 2024-08-20 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Formulations for chemical mechanical polishing pads with high planarization efficiency and CMP pads made therewith |
KR102502516B1 (ko) * | 2021-03-12 | 2023-02-23 | 에스케이엔펄스 주식회사 | 연마 패드, 연마 패드의 제조 방법 및 이를 이용한 반도체 소자의 제조 방법 |
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