WO2006098141A1 - 半導体集積回路装置用研磨剤、研磨方法および半導体集積回路装置の製造方法 - Google Patents
半導体集積回路装置用研磨剤、研磨方法および半導体集積回路装置の製造方法 Download PDFInfo
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- WO2006098141A1 WO2006098141A1 PCT/JP2006/303647 JP2006303647W WO2006098141A1 WO 2006098141 A1 WO2006098141 A1 WO 2006098141A1 JP 2006303647 W JP2006303647 W JP 2006303647W WO 2006098141 A1 WO2006098141 A1 WO 2006098141A1
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- Prior art keywords
- abrasive
- polishing
- polished
- water
- film
- Prior art date
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- 238000005498 polishing Methods 0.000 title claims abstract description 201
- 239000004065 semiconductor Substances 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 32
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 75
- 229920005591 polysilicon Polymers 0.000 claims abstract description 74
- 229920000768 polyamine Polymers 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910001868 water Inorganic materials 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 17
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 16
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 113
- 239000000377 silicon dioxide Substances 0.000 claims description 54
- 235000012239 silicon dioxide Nutrition 0.000 claims description 53
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 34
- 239000003795 chemical substances by application Substances 0.000 claims description 33
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 25
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 25
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 21
- 150000007514 bases Chemical class 0.000 claims description 19
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 17
- 229910021529 ammonia Inorganic materials 0.000 claims description 17
- 229920000570 polyether Polymers 0.000 claims description 17
- 229920001281 polyalkylene Polymers 0.000 claims description 11
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 10
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 5
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 claims description 5
- MIJDSYMOBYNHOT-UHFFFAOYSA-N 2-(ethylamino)ethanol Chemical compound CCNCCO MIJDSYMOBYNHOT-UHFFFAOYSA-N 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 30
- -1 nitride nitride Chemical class 0.000 description 28
- 239000000654 additive Substances 0.000 description 25
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- 239000010410 layer Substances 0.000 description 19
- 150000001875 compounds Chemical class 0.000 description 16
- 125000003277 amino group Chemical group 0.000 description 13
- 239000000758 substrate Substances 0.000 description 13
- 239000002270 dispersing agent Substances 0.000 description 12
- 239000006185 dispersion Substances 0.000 description 12
- 150000004985 diamines Chemical class 0.000 description 10
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229920001451 polypropylene glycol Polymers 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 7
- 229920000058 polyacrylate Polymers 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 6
- 125000002947 alkylene group Chemical group 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 150000002009 diols Chemical class 0.000 description 6
- 239000003082 abrasive agent Substances 0.000 description 5
- 150000004767 nitrides Chemical class 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
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- 229910021641 deionized water Inorganic materials 0.000 description 4
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- 150000003077 polyols Chemical group 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 229910021485 fumed silica Inorganic materials 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 125000004103 aminoalkyl group Chemical group 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 238000007254 oxidation reaction Methods 0.000 description 2
- 125000005702 oxyalkylene group Chemical group 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 description 2
- BOGFHOWTVGAYFK-UHFFFAOYSA-N 1-[2-(2-propoxyethoxy)ethoxy]propane Chemical compound CCCOCCOCCOCCC BOGFHOWTVGAYFK-UHFFFAOYSA-N 0.000 description 1
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 description 1
- 125000004042 4-aminobutyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])N([H])[H] 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-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
- QVHMSMOUDQXMRS-UHFFFAOYSA-N PPG n4 Chemical compound CC(O)COC(C)COC(C)COC(C)CO QVHMSMOUDQXMRS-UHFFFAOYSA-N 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
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- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- GHLITDDQOMIBFS-UHFFFAOYSA-H cerium(3+);tricarbonate Chemical compound [Ce+3].[Ce+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O GHLITDDQOMIBFS-UHFFFAOYSA-H 0.000 description 1
- QCCDYNYSHILRDG-UHFFFAOYSA-K cerium(3+);trifluoride Chemical compound [F-].[F-].[F-].[Ce+3] QCCDYNYSHILRDG-UHFFFAOYSA-K 0.000 description 1
- LQCIDLXXSFUYSA-UHFFFAOYSA-N cerium(4+);tetranitrate Chemical compound [Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O LQCIDLXXSFUYSA-UHFFFAOYSA-N 0.000 description 1
- UNJPQTDTZAKTFK-UHFFFAOYSA-K cerium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Ce+3] UNJPQTDTZAKTFK-UHFFFAOYSA-K 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
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- 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
- IMENJLNZKOMSMC-UHFFFAOYSA-N n'-[2-[2-[2-[2-[2-(2-aminoethylamino)ethylamino]ethylamino]ethylamino]ethylamino]ethyl]ethane-1,2-diamine Chemical compound NCCNCCNCCNCCNCCNCCNCCN IMENJLNZKOMSMC-UHFFFAOYSA-N 0.000 description 1
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- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
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Classifications
-
- 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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- 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
-
- 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
-
- 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
- B24B37/005—Control means for lapping machines or devices
- B24B37/0056—Control means for lapping machines or devices taking regard of the pH-value of lapping agents
-
- 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
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
- B24B37/044—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor characterised by the composition of the lapping agent
-
- 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
-
- 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
Definitions
- Polishing agent for semiconductor integrated circuit device polishing method, and method for manufacturing semiconductor integrated circuit device
- the present invention relates to a polishing technique used in a manufacturing process of a semiconductor integrated circuit device. More specifically, polishing suitable for flattening a surface to be polished including a polycrystalline silicon (hereinafter referred to as polysilicon) film used for a capacitor, a gate electrode and others in a multilayer wiring formation process.
- the present invention relates to a polishing technique for a polishing surface including a polysilicon film, which is used in a manufacturing process of an agent and a semiconductor integrated circuit device.
- CMP has become an indispensable technology to prevent the problem of insufficient resolution.
- CMP consists of interlayer insulation film (ILD film: Inter-Level Dielectrics) planarization, shallow trench isolation (STI), tungsten plug formation, copper and low dielectric constant film. It is used in the multilayer wiring formation process. In such a case, CMP is also used for the flatness of the polished surface including the polysilicon film, which is often used for capacitors, gate electrodes and others.
- a stopper layer is formed as a stopper layer under the polysilicon film to be polished.
- a silicon film or a silicon nitride film is formed, and the ratio of the polishing speed of the polysilicon film to the polishing speed of the silicon dioxide film or the nitride nitride film (hereinafter referred to as (A polishing speed) / (B
- a polishing speed the ratio of the polishing speed of the polysilicon film to the polishing speed of the silicon dioxide film or the nitride nitride film
- a polishing agent containing SS series of fumed silica, water, and potassium hydroxide manufactured by Cabot has been used. This is also used for polishing silicon dioxide film on the flat surface of silicon dioxide.
- silicon dioxide film is used for the stopper layer, it is used for flat surface of polished surface.
- this polishing agent is also used for the flatness of the surface to be polished, including a polysilicon film using a nitride film as a stopper layer that has a small polishing rate ratio between the polysilicon film and the nitride nitride film.
- Patent Document 1 discloses that at least one kind of abrasive is fumed silica or colloidal silica.
- a polishing composition comprising abrasive grains and a basic compound ammine has been proposed.
- the polishing composition of this patent document is used to planarize a surface to be polished containing a polysilicon film having a large polishing rate ratio between the polysilicon film and the silicon dioxide film when a silicon dioxide film is used as a stopper layer. It is said to be a suitable abrasive.
- this polishing composition is capable of flattening the surface to be polished using a nitride nitride film as a stopper layer having a large polishing rate ratio between the polysilicon film and the nitride nitride film.
- the polishing agent having such characteristics performs flattening of a surface to be polished including a capacitor, a gate electrode, and a polysilicon film used for other purposes in a multilayer wiring forming process.
- a silicon nitride film is used as the stopper layer, and the polysilicon film and the silicon dioxide film thereover must be polished. That is, since the polishing rate of the silicon dioxide film is lower than the polishing rate of the polysilicon film, there arises an inconvenience in polishing removal of the silicon dioxide film before reaching the silicon nitride film as the stopper layer.
- Patent Document 1 Japanese Patent No. 3457144 (Example)
- Patent Document 2 Japanese Patent Laid-Open No. 11-12561
- Patent Document 3 Japanese Patent Laid-Open No. 2001-35818
- the present invention solves the above problems and is a chemical mechanical polishing abrasive for polishing a surface to be polished in the manufacture of a semiconductor integrated circuit device, wherein the surface to be polished is a polysilicon film. It aims at providing the abrasive
- the present invention provides the following features.
- a polishing agent comprising particles, a water-soluble polyamine, and water, wherein the polishing agent has a pH in a range of 10 to 13.
- water-soluble polyamine according to any one of (1) to (3), wherein the water-soluble polyamine is one or more polymers selected from the group consisting of a water-soluble polyether polyamine and a water-soluble polyalkylene polyamine. Abrasives.
- the abrasive comprises sodium hydroxide, potassium hydroxide, lithium hydroxide, tetramethylammonium hydroxide, monoethanolamine, ethylethanolamine, diethanolamine, propylenediamine and ammonia.
- the basic compound is contained in the abrasive in the range of 0.001 to 5.0% by mass.
- the abrasive according to (5) is provided.
- a polishing method for a surface to be polished in which a polishing agent is supplied to a polishing pad, the surface to be polished of the semiconductor integrated circuit device is brought into contact with the polishing pad, and polishing is performed by relative movement between the two.
- a polishing method wherein the surface includes a surface to be polished of a polysilicon film, and the polishing agent according to any one of (1) to (8) is used as the polishing agent.
- FIG. 1 is a schematic cross-sectional view when a semiconductor device substrate is polished with the polishing agent of the present invention in a flattening process of a surface to be polished including a polysilicon film.
- FIG. 2 is a diagram showing an example of a polishing apparatus applicable to the polishing method of the present invention.
- FIG. 4 is a schematic cross-sectional view when a semiconductor device substrate is polished with the polishing agent of the present invention in a flattening process of a surface to be polished including a polysilicon film.
- FIG. 5 is a schematic cross-sectional view when a semiconductor device substrate is polished with the polishing agent of the present invention in a planarization process of a surface to be polished including a polysilicon film.
- the abrasive according to the present invention is a chemical mechanical polishing abrasive for polishing a surface to be polished of a semiconductor integrated circuit device (hereinafter also simply referred to as a semiconductor device), and the abrasive is an acid. It contains cerium fluoride particles, a water-soluble polyamine, and water, and has a pH in the range of 10 to: 13. A dispersant may coexist.
- the polishing rate ratio with other materials can be easily controlled.
- the surface to be polished of the polysilicon film is polished and a layer made of another material is exposed, a flat surface to be polished can be easily formed.
- Two or more polysilicon films may be included in one semiconductor device.
- the “surface to be polished” means an intermediate surface that appears in the process of manufacturing a semiconductor device.
- the abrasive according to the present invention is useful when the semiconductor device has a silicon dioxide film or a silicon nitride film immediately below the polysilicon film. Such a configuration is often employed when a silicon dioxide film or a silicon nitride film is used as a stopper film.
- the abrasive according to the present invention is also useful when the semiconductor device has a silicon dioxide film directly under the polysilicon film and a silicon nitride film directly under the silicon dioxide film. Such a configuration is often employed when a nitride nitride film is used as a stopper film, and a dioxide cage film and a polysilicon film are formed thereon.
- FIGS. 1, 4 and 5 are schematic cross-sectional views of a semiconductor device in which a silicon dioxide film 2, a polysilicon film 3 , and a silicon nitride film 4 are stacked on a substrate 1.
- FIG. 1 is schematic cross-sectional views of a semiconductor device in which a silicon dioxide film 2, a polysilicon film 3 , and a silicon nitride film 4 are stacked on a substrate 1.
- the polishing rate of the polysilicon film 3 is used in the polishing agent according to the present invention.
- the ratio of (Vps) to the polishing rate (Vso) of the silicon dioxide film 2 that is, the polishing rate ratio Vps / Vso
- the silicon dioxide film 2 is exposed as shown in FIG. This makes it possible to flatten the unevenness of the surface to be polished 5.
- the polishing rate (Vps) of the polysilicon film 3 and the nitride nitride film are used in the abrasive according to the present invention.
- Vsn polishing rate ratio of 4 (ie, polishing rate ratio Vps / Vsn), as shown in FIG. Can be highly flat.
- the polishing rate according to the present invention increases the polishing rate ratio Vps / Vsn.
- the polishing speeds Vps and Vso are kept at the same level, the unevenness of the surface 5 to be polished can be made highly flat as shown in FIG. 5 (b).
- the present abrasive does not aggregate abrasive grains, it is excellent in dispersion stability and is advantageous for polishing defects.
- cerium oxide is used as the abrasive grains in the abrasive.
- a negatively charged silanol group is formed on the surface of the polysilicon film due to the presence of the amine substance. Therefore, by using cerium oxide abrasive grains instead of silica abrasive grains conventionally used as abrasive grains, The polishing action by reaction increases. Therefore, this abrasive exhibits a high polishing rate for a polysilicon film as well as a silicon dioxide film.
- cerium oxide abrasive grains in the present invention for example, cerium oxide abrasive grains disclosed in Patent Document 2 or Patent Document 3 can be preferably used.
- cerium (IV) nitrate aqueous solution A cerium oxide powder obtained by adding an alkali to produce a cerium hydroxide gel, filtering, washing and firing can be preferably used. Further, cerium oxide abrasive grains obtained by pulverizing and firing high-purity cerium carbonate, and further pulverizing and classifying can be preferably used, but the cerium oxide is not particularly limited to these.
- the average particle diameter (diameter) of the cerium oxide abrasive grains is from 0.01 to 0.5 xm, particularly from 0.02 to 0.3 ⁇ m, more preferably from the viewpoint of polishing characteristics and dispersion stability. 05-0.2 zm moss preferred. If the average particle size is too large, scratches such as scratches may easily occur on the surface of the semiconductor substrate. If the average particle size is too small, the polishing rate may be low. Moreover, since the ratio of the surface area per unit volume is large, it is easily affected by the surface condition. Aggregation may occur easily depending on conditions such as pH and additive concentration. When agglomeration occurs, scratches such as scratches are likely to occur on the surface of the semiconductor substrate.
- the water-soluble polyamine in the abrasive may be any water-soluble compound having two or more amino groups in one molecule.
- the water solubility may be any degree as long as it is completely dissolved in the abrasive liquid at the concentration used as the abrasive. Usually, it is soluble in pure water at 1% by mass or more, preferably 5% by mass or more.
- Particularly preferred water-soluble polyamines are water-soluble polyether polyamines and water-soluble polyalkylene polyamines.
- the molecular weight of the water-soluble polyamine is not limited as long as the molecular weight is in the range having water solubility, but the weight average molecular weight is preferably in the range of 100 to 100,000: 100 to 2000. It is more preferable that it is in the range. When the weight average molecular weight is less than 100, the effect is small. If it exceeds 100,000, even if it is water-soluble, it may adversely affect the physical properties such as the fluidity of the abrasive. If it exceeds 2000, the solubility in pure water may decrease.
- Particularly preferred water-soluble polyamines are water-soluble polyether polyamines and water-soluble polyalkylene polyamines having a weight average molecular weight of 100 to 2,000.
- These water-soluble polyamines are used to suppress the polishing rate of silicon dioxide films and silicon nitride films, Used to promote polishing of silicon film. Furthermore, by adding a basic compound such as ammonia, the polishing rate (Vso) of the silicon dioxide film can be controlled while maintaining a large polishing rate ratio (VpsZVsn) between the polysilicon film and the silicon nitride film.
- the polishing rate ratio between the polysilicon film and the nitride nitride film (VpsZVsn) is small, or the polishing rate ratio between the polysilicon film and the nitride nitride film (Vps / V).
- polishing rate of the silicon dioxide film and the silicon nitride film can be suppressed and the polishing of the polysilicon film can be promoted by the cerium oxide abrasive grains and the surface to be polished.
- This is thought to be due to the adsorption effect of water-soluble polyamine (eg, polyoxypropylene diamine) on the surface.
- This effect will inhibit the progress of polishing by inhibiting the contact between cerium oxide and the silicon dioxide film or nitrided nitride film in the material to be polished. Polishing is considered to be promoted with respect to the polysilicon film because it is subject to chemical changes caused by water-soluble polyamines and is easily scraped by the mechanical action of the abrasive.
- Particularly preferred water-soluble polyamines in the present invention are one or more selected from the group consisting of water-soluble polyether polyamines having a weight average molecular weight of 100 to 2000 and water-soluble polyalkylene polyamines having a weight average molecular weight of 100 to 2000. It is a water-soluble polyamine. From the viewpoint of high dispersion stabilizing effect on cerium oxide abrasive grains, this water-soluble polyetherpolyamine has a more preferred weight average molecular weight of 150 to 800, and even more preferred weight average molecular weight of 150 to 400. .
- the polyether polyamine means a compound having two or more amino groups and two or more etheric oxygen atoms.
- the amino group is preferably a primary amino group (one NH 3).
- the polyether polyamine in the present invention has two or more primary amino groups, and has a secondary amino group (_NH_) or tertiary amino group as an amino group. Other compounds having substantially no amino groups are preferred, particularly polyether diamines having only two primary amino groups.
- the polyether polyamine is preferably a compound having a structure in which a hydrogen atom of a hydroxyl group of a polyhydric alcohol or polyether polyol is substituted with an aminoamino group.
- polyhydric alcohols dihydric to hexahydric alcohols, especially dihydric alcohols are preferred.
- the polyether polyol is preferably a bi- to hexavalent polyoxyalkylene polyol, particularly a polyoxyalkylene diol.
- aminoalkyl groups include carbons such as 2-aminoethyl group, 2-aminopropyl group, 2-amino-1-methylethyl group, 3-aminopropyl group, 2-amino1, 1-dimethylethyl group, and 4-aminobutyl group.
- An aminoalkyl group of 2-6 is preferred.
- the polyhydric alcohol is preferably a dihydric alcohol having 2 to 8 carbon atoms, which may have an etheric oxygen atom, such as ethylene glycol, diethylene glycol, propylene glycol, and dipropylene glycol.
- Polyether polyols include polyethylene glycols such as triethylene glycol and tetraethylenedaricol (ie, polyoxyethylene diol), polypropylene glycols such as tripropylene glycol and tetrapropylene glycol (ie, polyoxypropylene diol), and poly (o A polyether diol in which the repeating unit is an oxyalkylene group having 2 to 6 carbon atoms, such as a polyoxyalkylene diol having two or more types of oxyalkylene groups such as xoxypropylene (oxyethylene) diol, is preferred.
- the polyalkylene polyamine means a compound in which three or more amino groups are bonded via an alkylene group.
- the terminal amino group is preferably a primary amino group, and the amino group in the molecule is preferably a secondary amino group. More preferably, it is a linear polyalkylene polyamine having a primary amino group at both molecular terminals and having one or more secondary amino groups in the molecule.
- These plurality of amino group-bonded portions may be the same or different from each other, or the two amino-group-bonded portions bonded to the primary amino groups at both ends are the same and other It is preferable that it is different from the bonding part between amino groups.
- the number of carbon atoms contained in one amino group-linked moiety is preferably 2-8, and the number of carbon atoms contained in the two amino-group bonded moieties bonded to the primary amino groups at both ends is preferably 2-8.
- the number of carbon atoms contained in the other amino group-bonded moiety is preferably 2-6.
- polyether diamine and the polyalkylene polyamine a compound having a structure represented by the following formula (1) is preferable.
- R represents an alkylene group having 2 to 8 carbon atoms
- X represents an oxygen atom or —NH—
- k represents an integer of 2 or more in the case of polyetherdiamine
- polyalkylenepolyamine In case of, it represents an integer of 1 or more. Multiple Rs in a molecule may be different from each other.
- a compound having a structure represented by the following formula (2) is preferred as the polyether diamine, and a compound having a structure represented by the following formula (3) is preferred as the polyalkylene polyamine.
- R 1 is an ethylene group or propylene group
- R 2 is an alkylene group having 2 to 6 carbon atoms
- R 3 is an alkylene group having 2 to 6 carbon atoms
- R 4 is an alkylene group having 2 to 8 carbon atoms
- m is 1
- n represents an integer of 1 or more
- R 1 and R 2 may be the same or different.
- R 3 and R 4 may be the same or different.
- Specific polyether diamines represented by the formula (2) include, for example, polyoxypropylenediamine (a compound in which RR 2 is a propylene group and m is 1 or more), polyoxyethylene diamine ( R ⁇ R 2 is an ethylene group, m is 1 or more compounds), 4, 7, 10-trioxa - tridecane 1, 13 Jiamin (R 1 is an ethylene group, R 2 is a trimethylene group, m is 2 compounds), etc. is there.
- Specific polyalkylene polyamines represented by the formula (3) include, for example, tetraethylene pentamine (a compound in which R 3 and R 4 are ethylene groups and n is 2), pentaethylene hexamine (R 3 and R 4 are Compound with ethylene group, n is 3), heptaethyleneoctamine (R 3 , R 4 is ethylene group, compound with n is 5), N, N, 1 bis (3-aminopropyl) 1 ethylenediamine (R 3 is ethylene) Group R 4 is a trimethylene group, n is a compound of 1), N, N, monobis (2-aminoethyl) _1, 4-butanediamine (R 3 is a tetramethylene group, R 4 is an ethylene group, n is 1 compound).
- the concentration of the water-soluble polyamine in the abrasive is in the range of 0.00 :! to 20% by mass from the viewpoint of obtaining a sufficient effect of suppressing the polishing rate. It is preferable to set appropriately considering the polymerization average molecular weight of the polyamine.
- the concentration of the water-soluble polyamine in the abrasive is more preferably in the range of 0.05 to 5% by mass.
- the water according to the present invention is not particularly limited, but influences on other agents, impurities Contamination, the effects of the P H or the like, pure water, ultrapure water, can be preferably used ion exchange water or the like.
- the present abrasive can be used in an alkaline pH region. Considering the polishing characteristics and dispersion stability of the abrasive, pHIO ⁇ : 13 is preferable. If the pH is less than 10, the dispersibility may decrease. If it exceeds 13, there is no problem in polishing characteristics, but the surface to be polished may be affected, and operability (handling) May get worse.
- the abrasive according to the present invention preferably contains a basic compound.
- the polishing rate of the silicon dioxide film can be controlled by changing the type of basic compound and the amount added. Due to this effect, a silicon nitride film is used as a stopper layer as shown in FIG. 5 (a), and a silicon dioxide film and a polysilicon film are formed on the silicon nitride film. Can be polished at a similar polishing rate.
- the polishing rate ratio (Vps / Vso) between the polysilicon film and the silicon dioxide film can be freely controlled by changing the type of basic compound and the amount of added calories.
- the power to control Vso to 0 ⁇ 5-1. 5 S is useful, and in particular, it is useful to control V ⁇ 8 to: 1.2.
- this basic compound there are no particular restrictions on this basic compound.
- Preferred examples include basic compounds.
- ammonia is particularly preferred because it allows easy control of the polishing speed.
- the basic compound forces S preferably contained in 0.5 001-5.
- Range of 0 wt% in the polishing agent which comprises in the range of 0.005 to 2.0 mass 0/0 It is better than the ability to play. Less than 001 mass%, the effect of controlling the polishing rate of the silicon dioxide film is small. Even if it exceeds 5.0 mass%, no special effect is obtained.
- the abrasive according to the present invention may contain other components.
- a typical example is a dispersant.
- Dispersing agents include water-soluble organic polymers and anionic surfactants.
- the water-soluble organic polymer is preferably a polymer having a carboxylic acid group or a carboxylic acid ammonium salt.
- the abrasive according to the present invention does not necessarily have to be supplied to the polishing site as a mixture of all the constituent abrasive materials in advance. When supplying to the place of polishing, abrasive materials may be mixed to form an abrasive composition.
- it may be divided into a liquid containing cerium oxide particles, water, and optionally a dispersing agent, and a liquid containing a water-soluble polyamine and a basic compound, and the mixing ratio may be adjusted appropriately during polishing.
- a liquid containing cerium oxide particles, a dispersant, a water-soluble polyamine, and water and a liquid containing a basic compound and water. Any other way of dividing.
- the polishing rate of the silicon dioxide film can be controlled while maintaining a large polishing rate ratio between the polysilicon film and the silicon nitride film. This is a useful method when it is necessary to optimize the polishing rate ratio. More specifically, the polishing agent can be used effectively in STI separation and ILD film planarization because the polishing speed of the silicon nitride film is low and the polishing speed of the silicon dioxide film can be controlled.
- the polishing agent is supplied to the polishing pad, and the surface to be polished of the semiconductor device and the polishing pad are brought into contact with each other by relative movement between the two.
- the polished surface including the polished surface of the polysilicon film is polished.
- the polishing rate ratio between the polysilicon film and the silicon dioxide film, the polishing rate ratio between the polysilicon film and the silicon nitride film, and the polysilicon are increased.
- this polishing method is particularly suitable for semiconductor devices in the polysilicon film. It can be suitably used when a silicon dioxide film or a silicon nitride film is provided directly below, or when a silicon dioxide film is provided directly below the polysilicon film and a silicon nitride film is provided directly below the silicon dioxide film.
- FIG. 2 is a diagram showing an example of a polishing apparatus applicable to the polishing method of the present invention. While supplying the polishing agent 36 from the polishing agent supply pipe 35, the semiconductor device 31 is held on the polishing head 32 and brought into contact with the polishing pad 34 affixed to the surface of the polishing surface plate 33, and the polishing head 32 and the polishing surface plate. This is a method of rotating 33 to make a relative movement.
- the polishing apparatus according to the present invention is not limited to this. Les.
- the polishing head 32 may move linearly as well as rotate.
- the polishing surface plate 33 and the polishing pad 34 may be as large as or smaller than the semiconductor device 31. In that case, it is preferable that the entire surface of the semiconductor device can be polished by relatively moving the polishing head 32 and the polishing surface plate 33.
- the polishing surface plate 33 and the polishing pad 34 may not be a rotary type but may be a belt type that moves in one direction.
- the polishing conditions of the polishing apparatus are not particularly limited, but the polishing rate can be improved by applying a load to the polishing head 32 and pressing it against the polishing pad 34.
- the polishing pressure at this time is particularly preferably about 3 to 40 kPa from the viewpoint of uniformity in semiconductor devices having a polishing rate of preferably about 0.5 to 50 kPa, flatness, and prevention of polishing defects such as scratches.
- the rotation speed of the polishing surface plate and the polishing head is preferably about 50 to 500 rpm, but is not limited thereto.
- polishing pad a general nonwoven fabric, foamed polyurethane, porous resin, non-porous resin or the like can be used.
- grooves such as a lattice shape, a concentric circle shape, and a spiral shape may be formed on the surface of the polishing pad in order to promote the supply of the abrasive and to collect a certain amount of the abrasive.
- the surface to be polished is polished in the manufacture of a semiconductor device, an appropriate polishing rate ratio can be obtained between the polysilicon film and other materials. Therefore, in manufacturing a semiconductor device using this polishing method, the cost can be reduced and the throughput can be improved.
- Examples:! To 6 are examples, and examples 7 and 8 are comparative examples.
- “%” means mass% unless otherwise specified. The characteristic values were evaluated by the following method.
- the “aggregation and precipitation time” in the examples was determined as the time required for 20 mL of an abrasive to be put into a glass test tube having a diameter of 18 mm, left to stand for 10 days, and separated into two layers to form a supernatant.
- Polishing was performed with the following apparatus and conditions.
- Polishing machine fully automatic CMP equipment MIRRA (manufactured by APPLIED MATERIALS)
- Polishing pad 2-layer pad IC—1400 K-groove or single-layer pad IC—1000 K-groove (Rodel)
- Polishing pad conditioning MEC100—PH3. 5L (Mitsubishi Materials Co., Ltd.) Polishing surface plate rotation speed: 127rpm (common to all examples)
- Rotation speed of polishing head 123rpm (common to all examples)
- Polishing pressure 27.6 kPa (common to all cases)
- the abrasives to be polished in Examples 5 to 6 include an 8-inch silicon wafer substrate on which a polysilicon film is formed by a CVD method and an 8-inch silicon wafer on which a silicon dioxide film is formed by a thermal oxidation method. A substrate was used.
- a film thickness meter UV_1280SE manufactured by KLA_Tencor was used.
- This mixture was diluted 5 times with deionized water to prepare an abrasive mixture A having an abrasive concentration of 2% and a dispersant concentration of 0.014%.
- the pH of the abrasive mixture A is 7.6 and the average particle size is 0.19 ⁇ m.
- an amine water-soluble polymer having a molecular weight of 230 polyoxypropylene diamine manufactured by BASF, trade name: polyetheramine
- ammonia as a basic compound.
- the abrasive concentration was 1% and the concentration of ammonium polyacrylate was 0.007%.
- a polishing agent having a polyoxypropylenediamine concentration of 0.5%, an ammonia concentration of 0.005%, and a pH of 10.8 was prepared.
- Table 1 shows the composition, pH, average particle diameter, and coagulation sedimentation time of the abrasive
- Table 2 shows the evaluation results of the abrasive properties.
- abrasive mixture A was prepared, and in the preparation of additive liquid B, the concentration of polyoxypropylenediamine was 1.0% and the concentration of ammonia was 0.68%.
- additive liquid C was prepared.
- the abrasive concentration is 1%
- the concentration of ammonium polyacrylate as a dispersant is 0.007%
- the additive polyoxypropylene An abrasive having a diamine concentration of 0.5%, an ammonia concentration of 0.34%, and a pH of 11.5 was prepared.
- the abrasive was evaluated in the same manner as in Example 1.
- Table 1 shows the composition, pH and average particle size of the abrasive, and
- Table 2 shows the evaluation results of the polishing characteristics.
- the abrasive was evaluated in the same manner as in Example 1.
- Table 1 shows the composition, pH and average particle size of the abrasive, and Table 2 shows the evaluation results of the polishing characteristics.
- abrasive mixture A was prepared, and in the preparation of additive liquid B, the concentration of polyoxypropylenediamine was 1.0%, and as a basic compound, the concentration of potassium hydroxide was changed to 0.
- Additive liquid E was prepared in the same manner as in Example 1 except that it was used at 02%. By mixing the additive liquid E with the abrasive mixture A at a mass ratio of 1: 1, the abrasive concentration is 1%, the concentration of ammonium polyacrylate as dispersion AJ is 0.007%, and the additive polyoxy An abrasive having a propylenediamine concentration of 0.5%, a potassium hydroxide concentration of 0.01%, and a pH of 11.5 was prepared.
- the abrasive was evaluated in the same manner as in Example 1.
- Table 1 shows the composition, pH and average particle size of the abrasive, and Table 2 shows the evaluation results of the polishing characteristics.
- Abrasive grain mixture A was prepared in the same manner as in Example 1, and in the preparation of additive liquid B, the concentration of polyoxypropylenediamine was 0.2%, and as a basic compound, monoethanolamine was used instead of ammonia at a concentration of 0.4%.
- Additive liquid F was prepared in the same manner as in Example 1 except that it was used. By mixing this additive liquid F and abrasive mixture A at a mass ratio of 1: 1, the abrasive concentration is 1%, the concentration of ammonium polyacrylate as a dispersant is 0.007%, and the polyoxypropylenediamine concentration of the additive An abrasive with 0.1%, monoethanolamine concentration of 0.2%, and pf3 ⁇ 4i.1 was prepared.
- the abrasive was evaluated in the same manner as in Example 1.
- Table 1 shows the composition, pH and average particle size of the abrasive, and Table 2 shows the evaluation results of the polishing characteristics.
- Abrasive grain mixture A was prepared in the same manner as in Example 1, and in the preparation of additive liquid B, the concentration of polyoxypropylenediamine was 0.2%, and as a basic compound, tetramethylammonium hydroxide was used instead of ammonia.
- Additive liquid G was prepared in the same manner as in Example 1 except that the concentration was 0.24%. By mixing the additive liquid G and the abrasive mixture A at a mass ratio of 1: 1, Abrasive grain concentration 1%, polyammonium polyacrylate concentration 0.007% as dispersant, polyoxypropylene diamine concentration 0.1% additive, tetramethylammonium hydroxide concentration 0.
- the abrasive was evaluated in the same manner as in Example 1.
- Table 1 shows the composition, pH and average particle size of the abrasive, and
- Table 2 shows the evaluation results of the polishing characteristics.
- Planerite 6103 manufactured by Fujimi Incorporated containing colloidal silica, water, and a basic organic compound was used.
- Table 2 shows the evaluation results of the polishing characteristics.
- the average particle size of each abrasive was 0.19 / im as in the case of the abrasive mixture A. That is, the agglomeration of the abrasive grains did not proceed by mixing with the additive liquids B to G.
- this abrasive was allowed to stand and the dispersion stability was evaluated, the dispersion was maintained even after 1 week or more. This dispersion state is almost the same as that of the abrasive mixture A to which no additive is added, and the dispersibility is very good.
- the polishing rate of the silicon dioxide film can be controlled in a wide range, while the polishing rate of the silicon dioxide film cannot be controlled.
- the polishing rate of the silicon dioxide film cannot be controlled.
- the polishing rate of the silicon dioxide film can be controlled while maintaining the polishing rate ratio of the polysilicon film and the silicon nitride film. I'm divided into things. This clearly appears in FIG. 3 showing the correlation between ammonia concentration and V soZVps and Vsn / Vps for Examples 1 to 3 of the present invention.
- the polishing agent of the present invention uses a silicon dioxide film or a nitride nitride film as a stopper layer under the polysilicon film in the step of flattening the surface to be polished including the polysilicon film.
- the surface roughness of the surface to be polished can be controlled by controlling the polishing rate of the silicon dioxide film over a wide range while maintaining a large polishing rate ratio between the polysilicon film and the silicon nitride film. High flatness can be realized.
- the present abrasive has no dispersion of abrasive grains and is excellent in dispersion stability, and is advantageous for polishing defects.
- the polishing agent of the present invention has excellent flat surface characteristics and dispersion stability to be polished, including a polysilicon film, and has few polishing defects. Suitable for planarization of polished surfaces including polysilicon film used for electrodes and others, flattening of interlayer insulating film involving polysilicon film, and flattening process of insulating film for shallow trench isolation.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP06714784A EP1860688A4 (en) | 2005-03-16 | 2006-02-27 | AGING MACHINE FOR AN INTEGRATED SEMICONDUCTOR SWITCHING DEVICE, METHOD FOR POLISHING AN INTEGRATED SEMICONDUCTOR SWITCHING DEVICE, AND METHOD OF MANUFACTURING AN INTEGRATED SEMICONDUCTOR SWITCHING DEVICE |
JP2007508054A JPWO2006098141A1 (ja) | 2005-03-16 | 2006-02-27 | 半導体集積回路装置用研磨剤、研磨方法および半導体集積回路装置の製造方法 |
US11/856,166 US8030213B2 (en) | 2005-03-16 | 2007-09-17 | Polishing compound for semiconductor integrated circuit device, polishing method and method for producing semiconductor integrated circuit device |
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US11/856,166 Continuation US8030213B2 (en) | 2005-03-16 | 2007-09-17 | Polishing compound for semiconductor integrated circuit device, polishing method and method for producing semiconductor integrated circuit device |
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EP (1) | EP1860688A4 (ja) |
JP (1) | JPWO2006098141A1 (ja) |
KR (1) | KR20070112453A (ja) |
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WO2007127121A1 (en) * | 2006-04-27 | 2007-11-08 | Cabot Microelectronics Corporation | Polishing composition containing polyether amine |
WO2008032680A1 (fr) * | 2006-09-11 | 2008-03-20 | Asahi Glass Co., Ltd. | Agent de polissage pour dispositif à semi-conducteur en circuit intégré, procédé de polissage, et procédé de fabrication du dispositif à semi-conducteur en circuit intégré |
JP2008105168A (ja) * | 2006-04-28 | 2008-05-08 | Asahi Glass Co Ltd | 磁気ディスク用ガラス基板の製造方法および磁気ディスク |
WO2012098933A1 (ja) * | 2011-01-20 | 2012-07-26 | 旭硝子株式会社 | 研磨剤、研磨方法および半導体集積回路装置の製造方法 |
JP2016154208A (ja) * | 2015-02-12 | 2016-08-25 | 旭硝子株式会社 | 研磨剤、研磨方法および半導体集積回路装置の製造方法 |
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JP4554363B2 (ja) * | 2002-07-22 | 2010-09-29 | Agcセイミケミカル株式会社 | 半導体用研磨剤、その製造方法及び研磨方法 |
JP2006278522A (ja) * | 2005-03-28 | 2006-10-12 | Seimi Chem Co Ltd | 半導体集積回路装置用研磨剤、研磨方法および半導体集積回路装置の製造方法 |
KR101349983B1 (ko) * | 2006-09-13 | 2014-01-13 | 아사히 가라스 가부시키가이샤 | 반도체 집적 회로 장치용 연마제, 연마 방법 및 반도체 집적 회로 장치의 제조 방법 |
CN101656209B (zh) * | 2008-08-18 | 2012-03-07 | 中芯国际集成电路制造(上海)有限公司 | 化学机械研磨的方法 |
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WO2007127121A1 (en) * | 2006-04-27 | 2007-11-08 | Cabot Microelectronics Corporation | Polishing composition containing polyether amine |
EP2029689A1 (en) * | 2006-04-27 | 2009-03-04 | Cabot Microelectronics Corporation | Polishing composition containing polyether amine |
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US8741009B2 (en) | 2006-04-27 | 2014-06-03 | Cabot Microelectronics Corporation | Polishing composition containing polyether amine |
JP2008105168A (ja) * | 2006-04-28 | 2008-05-08 | Asahi Glass Co Ltd | 磁気ディスク用ガラス基板の製造方法および磁気ディスク |
WO2008032680A1 (fr) * | 2006-09-11 | 2008-03-20 | Asahi Glass Co., Ltd. | Agent de polissage pour dispositif à semi-conducteur en circuit intégré, procédé de polissage, et procédé de fabrication du dispositif à semi-conducteur en circuit intégré |
EP2061070A1 (en) * | 2006-09-11 | 2009-05-20 | Asahi Glass Co., Ltd. | Polishing agent for semiconductor integrated circuit device, polishing method, and method for manufacturing semiconductor integrated circuit device |
EP2061070A4 (en) * | 2006-09-11 | 2010-06-02 | Asahi Glass Co Ltd | POLISHING AGENT FOR AN INTEGRATED SEMICONDUCTOR ELEMENTS, POLISHING METHOD AND METHOD FOR PRODUCING AN INTEGRATED SEMICONDUCTOR EQUIPMENT |
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JP2016154208A (ja) * | 2015-02-12 | 2016-08-25 | 旭硝子株式会社 | 研磨剤、研磨方法および半導体集積回路装置の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20070112453A (ko) | 2007-11-26 |
CN100578740C (zh) | 2010-01-06 |
EP1860688A4 (en) | 2010-08-18 |
US8030213B2 (en) | 2011-10-04 |
TW200643157A (en) | 2006-12-16 |
JPWO2006098141A1 (ja) | 2008-08-21 |
EP1860688A1 (en) | 2007-11-28 |
CN101142659A (zh) | 2008-03-12 |
US20080070412A1 (en) | 2008-03-20 |
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