KR100574162B1 - 세륨계 연마제의 제조방법 - Google Patents
세륨계 연마제의 제조방법 Download PDFInfo
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- KR100574162B1 KR100574162B1 KR1020040054759A KR20040054759A KR100574162B1 KR 100574162 B1 KR100574162 B1 KR 100574162B1 KR 1020040054759 A KR1020040054759 A KR 1020040054759A KR 20040054759 A KR20040054759 A KR 20040054759A KR 100574162 B1 KR100574162 B1 KR 100574162B1
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- cerium
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- organic acid
- cerium oxide
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- 238000000034 method Methods 0.000 title claims abstract description 67
- 238000005498 polishing Methods 0.000 title claims abstract description 57
- 229910052684 Cerium Inorganic materials 0.000 title claims abstract description 27
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 title claims description 25
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 67
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000002245 particle Substances 0.000 claims abstract description 62
- 239000002002 slurry Substances 0.000 claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 claims abstract description 35
- 239000004065 semiconductor Substances 0.000 claims abstract description 26
- 238000001354 calcination Methods 0.000 claims abstract description 19
- 150000001785 cerium compounds Chemical class 0.000 claims abstract description 15
- 238000010298 pulverizing process Methods 0.000 claims abstract description 9
- 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 claims description 38
- 229920002125 Sokalan® Polymers 0.000 claims description 23
- 150000007524 organic acids Chemical class 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 21
- 239000004584 polyacrylic acid Substances 0.000 claims description 20
- 229920000642 polymer Polymers 0.000 claims description 19
- 150000001414 amino alcohols Chemical class 0.000 claims description 16
- 239000011734 sodium Substances 0.000 claims description 11
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 claims description 9
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 8
- 229910052700 potassium Inorganic materials 0.000 claims description 8
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000011591 potassium Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 6
- -1 inorganic acid salt Chemical class 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 239000006061 abrasive grain Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 3
- WGAOZGUUHIBABN-UHFFFAOYSA-N 1-aminopentan-1-ol Chemical compound CCCCC(N)O WGAOZGUUHIBABN-UHFFFAOYSA-N 0.000 claims description 2
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 2
- BKMMTJMQCTUHRP-UHFFFAOYSA-N 2-aminopropan-1-ol Chemical compound CC(N)CO BKMMTJMQCTUHRP-UHFFFAOYSA-N 0.000 claims description 2
- WUGQZFFCHPXWKQ-UHFFFAOYSA-N Propanolamine Chemical compound NCCCO WUGQZFFCHPXWKQ-UHFFFAOYSA-N 0.000 claims description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 5
- 239000006104 solid solution Substances 0.000 claims 1
- 238000000227 grinding Methods 0.000 abstract description 20
- 239000003082 abrasive agent Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 description 20
- 239000002994 raw material Substances 0.000 description 19
- 238000002474 experimental method Methods 0.000 description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 230000007547 defect Effects 0.000 description 10
- 229910052814 silicon oxide Inorganic materials 0.000 description 10
- 238000003756 stirring Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 238000005119 centrifugation Methods 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 5
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- KHSBAWXKALEJFR-UHFFFAOYSA-H cerium(3+);tricarbonate;hydrate Chemical compound O.[Ce+3].[Ce+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O KHSBAWXKALEJFR-UHFFFAOYSA-H 0.000 description 2
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- DKYDUFWOIUKRGU-UHFFFAOYSA-N [Ag+].[O-2].[Ce+3].[O-2] Chemical compound [Ag+].[O-2].[Ce+3].[O-2] DKYDUFWOIUKRGU-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000010332 dry classification Methods 0.000 description 1
- 238000001493 electron microscopy Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010333 wet classification Methods 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
- 238000010947 wet-dispersion method Methods 0.000 description 1
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- 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
- C09K3/1454—Abrasive powders, suspensions and pastes for 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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
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- 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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- 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]
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Abstract
Description
Claims (12)
- (i) 세륨 화합물을 350 ℃ 이하의 온도에서 건조 및 1차 하소하는 단계;(ii) 상기 건조 및 1차 하소된 세륨 화합물을 예비 분쇄하는 단계;(iii) 상기 예비 분쇄된 세륨 화합물을 500 내지 1200 ℃의 온도에서 하소하여 산화세륨을 수득하는 단계;(iv) 수득된 산화세륨을 매체 교반식 밀에 의한 분쇄하는 단계; 및,(v) 상기 분쇄된 산화세륨을 초고압 분산시키는 단계를 포함하는 것을 특징으로 하는 연마 슬러리용 세륨계 연마제의 제조방법.
- 제 1항에 있어서,상기 세륨 화합물은 세륨의 무기산염 또는 유기산염인 것을 특징으로 하는 연마 슬러리용 세륨계 연마제의 제조방법.
- 제 2항에 있어서,상기 세륨 화합물 내에는 나트륨 및 칼륨 성분의 합이 10 ppm 이하로 존재하는 것을 특징으로 하는 연마 슬러리용 세륨계 연마제의 제조방법.
- 제 1항에 있어서,상기 세륨 화합물은 탄산세륨인 것을 특징으로 하는 연마 슬러리용 세륨계 연마제의 제조방법.
- 삭제
- 제 1항에 있어서,수득된 세륨계 연마제 입자의 평균 입경은 50 내지 500 nm이고, 1 μm 이상의 대입경 입자는 1 ml 당 1× 107개 이하로 포함되어 있는 것을 특징으로 하는 연마 슬러리용 세륨계 연마제의 제조방법.
- (i) 제 1항에 따른 산화세륨 연마입자 함량이 0.01 내지 10 중량%;(ii) 점도 0.8 cps 내지 50 cps의 범위 내에서 서로 상이한 점도를 가진 2 이상의 폴리아크릴산 또는 폴리아크릴산 공중합체 20 내지 80 중량부; 및, 하기의 아미노 알코올 80 내지 20 중량부로 이루어진 첨가제 0.01 내지 20 중량%; 및,[화학식 1][R1, R2 및 R3은 서로 동일하거나 상이할 수 있으며, R1은 C2 내지 C30의 직쇄 또는 측쇄의 히드록시알킬이며, R2 및 R3은 수소, C2 내지 C30의 직쇄 또는 측쇄의 알킬 또는 C2 내지 C30의 직쇄 또는 측쇄의 히드록시알킬이다.](iii) 나머지로 물을 포함하는 것을 특징으로 하는 반도체 연마용 슬러리 조성물.
- 제 7항에 있어서,서로 상이한 점도를 가진 2 이상의 폴리아크릴산 또는 폴리아크릴산 공중합체 혼합물 40 내지 60 중량부; 및, 아미노 알코올 60 내지 40 중량부인 것을 특징으로 하는 반도체 연마용 슬러리 조성물.
- 제 7항 또는 제 8항에 있어서,상이한 점도를 가지는 상기 고분자 유기산 혼합물은 고형분 2.5% 수용액 기준으로 점도 1.5 cps 내지 5 cps인 고분자 유기산 10 내지 90 중량% 및 고형분 2.5% 수용액 기준으로 점도 0.8 cps 내지 1.5 cps인 고분자 유기산 90 내지 10 중량%로 이루어진 고분자 유기산의 혼합물인 것을 특징으로 하는 반도체 연마용 슬러리 조성물.
- 제 7항에 있어서,화학식 1의 아미노 알코올의 R1은 C2 내지 C7의 직쇄 또는 측쇄의 히드록시알킬이며, R2 및 R3은 수소, C2 내지 C7의 직쇄 또는 측쇄의 알킬 또는 C2 내지 C7의 직쇄 또는 측쇄의 히드록시알킬인 것을 특징으로 하는 반도체 연마용 슬러리 조성물.
- 제 10항에 있어서,화학식 1의 아미노 알코올은 모노에탄올아민, 디에탄올아민, 트리에탄올아민, 2-아미노-2-메틸-1-프로판올, 3-아미노-1-프로판올, 2-아미노-1-프로판올, 1-아미노-2-프로판올 및 1-아미노-펜탄올 또는 이로부터 선택되는 2 이상의 혼합물인 것을 특징으로 하는 반도체 연마용 슬러리 조성물.
- 제 7항 또는 제 8항에 있어서,상이한 점도를 가지는 상기 고분자 유기산 혼합물은 고형분 2.5% 수용액 기준으로 점도 5 cps 내지 50 cps인 고분자 유기산 0.1 내지 10 중량%, 고형분 2.5% 수용액 기준으로 점도 1.5 cps 내지 5 cps인 고분자 유기산 10 내지 40 중량% 및 고형분 2.5% 수용액 기준으로 점도 0.8 cps 내지 1.5 cps인 고분자 유기산 50 내지 89.9 중량%로 이루어진 고분자 유기산의 혼합물인 것을 특징으로 하는 반도체 연마용 슬러리 조성물.
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WO2008013407A1 (en) * | 2006-07-28 | 2008-01-31 | Lg Chem, Ltd. | Cerium oxide powder, method for preparing the same, and cmp slurry comprising the same |
JP2009544559A (ja) * | 2006-07-28 | 2009-12-17 | エルジー・ケム・リミテッド | 酸化セリウム粉末、その製造方法及びこれを含むcmpスラリー |
US8388710B2 (en) | 2005-01-26 | 2013-03-05 | Lg Chem, Ltd. | Cerium oxide powder, method for preparing the same, and CMP slurry comprising the same |
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JP2002235071A (ja) | 2001-02-13 | 2002-08-23 | Mitsui Mining & Smelting Co Ltd | セリウム系研摩材粒子の製造方法 |
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US8388710B2 (en) | 2005-01-26 | 2013-03-05 | Lg Chem, Ltd. | Cerium oxide powder, method for preparing the same, and CMP slurry comprising the same |
WO2008013407A1 (en) * | 2006-07-28 | 2008-01-31 | Lg Chem, Ltd. | Cerium oxide powder, method for preparing the same, and cmp slurry comprising the same |
JP2009544559A (ja) * | 2006-07-28 | 2009-12-17 | エルジー・ケム・リミテッド | 酸化セリウム粉末、その製造方法及びこれを含むcmpスラリー |
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