JP2016524324A - ポリエチレンイミンを含む化学機械研磨組成物 - Google Patents
ポリエチレンイミンを含む化学機械研磨組成物 Download PDFInfo
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- 239000000203 mixture Substances 0.000 title claims abstract description 100
- 238000005498 polishing Methods 0.000 title claims abstract description 71
- 229920002873 Polyethylenimine Polymers 0.000 title claims abstract description 51
- 239000000126 substance Substances 0.000 title claims abstract description 46
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 43
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 claims description 30
- -1 aluminate ions Chemical class 0.000 claims description 27
- 239000000654 additive Substances 0.000 claims description 16
- 239000004065 semiconductor Substances 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 14
- 150000002500 ions Chemical class 0.000 claims description 11
- 229910000673 Indium arsenide Inorganic materials 0.000 claims description 10
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 claims description 10
- 239000007800 oxidant agent Substances 0.000 claims description 9
- 229910005542 GaSb Inorganic materials 0.000 claims description 8
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- WPYVAWXEWQSOGY-UHFFFAOYSA-N indium antimonide Chemical compound [Sb]#[In] WPYVAWXEWQSOGY-UHFFFAOYSA-N 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 claims description 6
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims description 6
- 150000001450 anions Chemical class 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 239000000872 buffer Substances 0.000 claims description 5
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 229940071182 stannate Drugs 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 239000003082 abrasive agent Substances 0.000 claims description 2
- 229910002601 GaN Inorganic materials 0.000 claims 2
- 229910005540 GaP Inorganic materials 0.000 claims 2
- XLYOFNOQVPJJNP-DYCDLGHISA-N deuterium hydrogen oxide Chemical compound [2H]O XLYOFNOQVPJJNP-DYCDLGHISA-N 0.000 abstract 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 26
- 239000002245 particle Substances 0.000 description 26
- 235000012431 wafers Nutrition 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 14
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- 150000001875 compounds Chemical class 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 229920001519 homopolymer Polymers 0.000 description 6
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- 230000008569 process Effects 0.000 description 6
- 239000003139 biocide Substances 0.000 description 5
- 238000005227 gel permeation chromatography Methods 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 230000003115 biocidal effect Effects 0.000 description 4
- 239000012928 buffer substance Substances 0.000 description 4
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- 150000002978 peroxides Chemical class 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
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- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229920000962 poly(amidoamine) Polymers 0.000 description 3
- OZDGMOYKSFPLSE-UHFFFAOYSA-N 2-Methylaziridine Chemical compound CC1CN1 OZDGMOYKSFPLSE-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 238000002296 dynamic light scattering Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- LLYCMZGLHLKPPU-UHFFFAOYSA-M perbromate Chemical compound [O-]Br(=O)(=O)=O LLYCMZGLHLKPPU-UHFFFAOYSA-M 0.000 description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 2
- 229920001281 polyalkylene Polymers 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 2
- PWGJDPKCLMLPJW-UHFFFAOYSA-N 1,8-diaminooctane Chemical compound NCCCCCCCCN PWGJDPKCLMLPJW-UHFFFAOYSA-N 0.000 description 1
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- DNPSMEGHIHDFAJ-UHFFFAOYSA-N 2,3-dimethylaziridine Chemical compound CC1NC1C DNPSMEGHIHDFAJ-UHFFFAOYSA-N 0.000 description 1
- CSWPOLMVXVBCSV-UHFFFAOYSA-N 2-ethylaziridine Chemical compound CCC1CN1 CSWPOLMVXVBCSV-UHFFFAOYSA-N 0.000 description 1
- RXFCIXRFAJRBSG-UHFFFAOYSA-N 3,2,3-tetramine Chemical compound NCCCNCCNCCCN RXFCIXRFAJRBSG-UHFFFAOYSA-N 0.000 description 1
- ZAXCZCOUDLENMH-UHFFFAOYSA-N 3,3,3-tetramine Chemical compound NCCCNCCCNCCCN ZAXCZCOUDLENMH-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
- JCEZOHLWDIONSP-UHFFFAOYSA-N 3-[2-[2-(3-aminopropoxy)ethoxy]ethoxy]propan-1-amine Chemical compound NCCCOCCOCCOCCCN JCEZOHLWDIONSP-UHFFFAOYSA-N 0.000 description 1
- YOOSAIJKYCBPFW-UHFFFAOYSA-N 3-[4-(3-aminopropoxy)butoxy]propan-1-amine Chemical compound NCCCOCCCCOCCCN YOOSAIJKYCBPFW-UHFFFAOYSA-N 0.000 description 1
- XUSNPFGLKGCWGN-UHFFFAOYSA-N 3-[4-(3-aminopropyl)piperazin-1-yl]propan-1-amine Chemical compound NCCCN1CCN(CCCN)CC1 XUSNPFGLKGCWGN-UHFFFAOYSA-N 0.000 description 1
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical class [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 230000005355 Hall effect Effects 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 241000233805 Phoenix Species 0.000 description 1
- 239000005700 Putrescine Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052795 boron group element Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000000412 dendrimer Substances 0.000 description 1
- 229920000736 dendritic polymer Polymers 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- GKQPCPXONLDCMU-CCEZHUSRSA-N lacidipine Chemical compound CCOC(=O)C1=C(C)NC(C)=C(C(=O)OCC)C1C1=CC=CC=C1\C=C\C(=O)OC(C)(C)C GKQPCPXONLDCMU-CCEZHUSRSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000002052 molecular layer Substances 0.000 description 1
- DTSDBGVDESRKKD-UHFFFAOYSA-N n'-(2-aminoethyl)propane-1,3-diamine Chemical compound NCCCNCCN DTSDBGVDESRKKD-UHFFFAOYSA-N 0.000 description 1
- LSHROXHEILXKHM-UHFFFAOYSA-N n'-[2-[2-[2-(2-aminoethylamino)ethylamino]ethylamino]ethyl]ethane-1,2-diamine Chemical compound NCCNCCNCCNCCNCCN LSHROXHEILXKHM-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWWDDFFHABKNMQ-UHFFFAOYSA-N oxosilicon;hydrate Chemical class O.[Si]=O TWWDDFFHABKNMQ-UHFFFAOYSA-N 0.000 description 1
- 238000001935 peptisation Methods 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- KHIWWQKSHDUIBK-UHFFFAOYSA-N periodic acid Chemical compound OI(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229910052696 pnictogen Inorganic materials 0.000 description 1
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- 150000005622 tetraalkylammonium hydroxides Chemical class 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 238000005199 ultracentrifugation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1436—Composite particles, e.g. coated particles
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
- C09K3/1463—Aqueous liquid suspensions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02002—Preparing wafers
- H01L21/02005—Preparing bulk and homogeneous wafers
- H01L21/02008—Multistep processes
- H01L21/0201—Specific process step
- H01L21/02024—Mirror polishing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30604—Chemical etching
- H01L21/30612—Etching of AIIIBV compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30625—With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
本発明の目的の1つは、特に、III−V族材料、具体的にはGaAsおよびInP基板の化学機械研磨のためのCMP組成物およびCMP法を提供することであって、CMP組成物およびCMP法は、トランジスタを形成するためのIC製造ラインの初期工程(FEOL)で使用され、改良された研磨性能、特に、
(i)III−V族材料、例えばGaAsおよび/またはInPの高い材料研磨速度(MRR)、
(ii)異なるIII−V族材料の間の高い選択性(即ち、前記異なるIII−V族材料の材料研磨速度の間の高い比率)、例えば、InPに対するGaAsの高い選択性、
(iii)CMP工程の後の、III−V族材料、例えばGaAsおよび/またはInPの高い表面品質、
(iv)安全な操作、ならびに有害な副生成物、例えば、GaAsおよび/またはInPを研磨する場合の有毒ガスAsH3および/またはPH3の最小限までの低減、または
(v)(i)、(ii)、(iii)および(iv)の組合せ
を示した。
(A)2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する表面修飾シリカ粒子、
(B)1種または複数のポリエチレンイミン、
(C)水、
(D)任意に、1種または複数の他の成分
を含み、
組成物のpHが2〜6の範囲である、化学機械研磨(CMP)組成物が提供される。
表面修飾シリカ粒子は、−15mVより負の、好ましくは−25mVより負の、最も好ましくは−30mVより負のゼータ電位を有する。
本発明によるCMP組成物は、(B)1種または複数のポリエチレンイミンをさらに含む。本明細書で使用される場合、「ポリエチレンイミン」という用語は、エチレンイミンのホモポリマー、エチレンイミンと1種または複数のエチレンイミンのより高級な同族体とのコポリマーおよびエチレンイミンのグラフトコポリマーを表す。
DB=D+T/D+T+L
本発明によるCMP組成物は、前記CMP組成物の使用目的の特定の要求事項に応じて他の成分を含んでもよい。好ましくは、構成成分(D)の1種または少なくとも1種またはすべての他の成分は、酸化剤、2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する表面修飾シリカ粒子とは異なる研磨材、安定剤、界面活性剤、減摩剤、緩衝物質からなる群から選択される。
− 2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する(A)表面修飾シリカ粒子の総量が、本発明のCMP組成物の総質量に対して0.1〜30質量%の範囲であり、
および/または
− (B)ポリエチレンイミンの総量が、本発明のCMP組成物の総質量に対して0.01〜3質量%の範囲である
化学機械研磨(CMP)組成物である。
− 2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する構成成分(A)の表面修飾シリカ粒子が、アルミン酸イオンでアニオン修飾されたもしくはスルホン酸で修飾されたシリカ粒子であり、
および/または
− 1種、少なくとも1種もしくはすべてのポリエチレンイミンが、500g/mol〜40000g/molの範囲の平均分子量を有する
化学機械研磨(CMP)組成物である。
CMPの実験のための一般的手順
ベンチトップ研磨機による評価のために、以下のパラメーターを選択した:
手順の設定:Phoenix 4000研磨機;台/保持部 200/150rpm;ダウンフォース 2.5psi(17238Pa);スラリー流量 18mL/min;パッド IC 1000;時間 1分。
それぞれ表1および2に示した量の構成成分(A)、(B)および(D1)を、脱イオン水に分散または溶解した。pHを10%KOH水溶液またはHNO3(0.1%〜10%)溶液をスラリーに添加することによって調整する。pH値をpH電極(Schott、blue line、pH 0〜14/−5〜100℃/3mol/L塩化ナトリウム)で測定する。
シリカ粒子(A)の電気泳動移動度およびゼータ電位を測定するために、Malvern社製標準Zetasizer Nano装置を使用した。移動度を測定する前に、試料を10mmol/lKCl溶液で500倍に希釈した。測定を23℃で実施した。
比較例1〜3および本発明による実施例1〜4において、粒子(A)は、典型的な粒径15nm、典型的な表面積200m2/gおよびpH4においてゼータ電位−40mVを有する、アルミン酸イオンで修飾されたアニオン性コロイダルシリカ、例えばLevasil 200A(Akzo Nobel製)である。
Claims (14)
- 以下の構成成分:
(A)2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する表面修飾シリカ粒子、
(B)1種または複数のポリエチレンイミン、
(C)水、
(D)任意に、1種または複数の他の成分
を含む化学機械研磨(CMP)組成物であって、
組成物のpHが2〜6の範囲である、化学機械研磨(CMP)組成物。 - 2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する構成成分(A)の表面修飾シリカ粒子が、金属酸イオンでアニオン修飾されたまたはスルホン酸で修飾されたシリカ粒子である、請求項1に記載の化学機械研磨(CMP)組成物。
- 2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する構成成分(A)の表面修飾シリカ粒子が、アルミン酸イオン、錫酸イオン、 亜鉛酸イオン、および鉛酸イオンからなる群から選択される金属酸イオンでアニオン修飾されたシリカ粒子である、請求項1または2に記載の化学機械研磨(CMP)組成物。
- 2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する構成成分(A)の表面修飾シリカ粒子が、アルミン酸イオンでアニオン修飾されたシリカ粒子である、請求項1、2または3のいずれか一項に記載の化学機械研磨(CMP)組成物。
- 1種、少なくとも1種またはすべてのポリエチレンイミンが、500g/mol〜40,000g/molの範囲の平均分子量を有する、請求項1から4のいずれか一項に記載の化学機械研磨(CMP)組成物。
- (A)2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する表面修飾シリカ粒子の総量が、組成物の総質量に対して0.1〜30質量%の範囲であり、
および/または
(B)ポリエチレンイミンの総量が、組成物の総質量に対して0.01〜3質量%の範囲である、請求項1から5のいずれか一項に記載の化学機械研磨(CMP)組成物。 - 2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する構成成分(A)の表面修飾シリカ粒子が、アルミン酸イオンでアニオン修飾されたまたはたスルホン酸で修飾されたシリカ粒子であり、
および/または
1種、少なくとも1種またはすべてのポリエチレンイミンが、500g/mol〜40000g/molの範囲の平均分子量を有する、請求項1から6のいずれか一項に記載の化学機械研磨(CMP)組成物。 - 構成成分(D)としての1種または複数の他の成分を含み、構成成分(D)の1種または少なくとも1種またはすべての他の成分が、酸化剤、2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する表面修飾シリカ粒子とは異なる研磨材、安定剤、界面活性剤、減摩剤、および緩衝物質からなる群から選択される、請求項1から7のいずれか一項に記載の化学機械研磨(CMP)組成物。
- ポリエチレンイミンを、化学機械研磨(CMP)組成物のための添加剤として、好ましくは、2〜6の範囲のpHにおいて−15mV以下の負のゼータ電位を有する表面修飾シリカ粒子を含む化学機械研磨(CMP)組成物のための添加剤として使用する方法。
- ポリエチレンイミン(B)が、500g/mol〜40000g/molの範囲の平均分子量を有し、好ましくは分岐の球状ポリマーである、請求項9に記載の使用方法。
- 請求項1から8のいずれか一項に記載の化学機械研磨(CMP)組成物の存在下における基板または層の化学機械研磨を含む、半導体素子の製造方法。
- 基板または層が、1種または複数のIII−V族材料を含有する、請求項11に記載の方法。
- 1種、または少なくとも1種もしくはすべてのIII−V族材料が、GaN、GaP、GaAs、GaSb、AlAs、AlN、InP、InAs、InSb、InGaAs、InAlAs、AlGaAs、GaAlN、GaInN、InGaAlAs、InGaAsP、InGaP、AlInP、GaAlSb、GaInSb、GaAlAsSb、およびGaInAsSbからなる群から選択される、請求項11または12に記載の方法。
- 請求項1から8のいずれか一項に記載の化学機械研磨(CMP)組成物を1種または複数のIII−V族材料を含有する基板または層を研磨するために使用する方法であって、1種または少なくとも1種もしくはすべてのIII−V族材料が、好ましくは、GaN、GaP、GaAs、GaSb、AlAs、AlN、InP、InAs、InSb、InGaAs、InAlAs、AlGaAs、GaAlN、GaInN、InGaAlAs、InGaAsP、InGaP、AlInP、GaAlSb、GaInSb、GaAlAsSb、およびGaInAsSbからなる群から選択される使用方法。
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