TW200804577A - Compositions for chemical mechanical polishing silica and silicon nitride having improved endpoint detection - Google Patents
Compositions for chemical mechanical polishing silica and silicon nitride having improved endpoint detection Download PDFInfo
- Publication number
- TW200804577A TW200804577A TW096118311A TW96118311A TW200804577A TW 200804577 A TW200804577 A TW 200804577A TW 096118311 A TW096118311 A TW 096118311A TW 96118311 A TW96118311 A TW 96118311A TW 200804577 A TW200804577 A TW 200804577A
- Authority
- TW
- Taiwan
- Prior art keywords
- acid
- hydroxide
- abrasive
- grinding
- cerium oxide
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 46
- 238000005498 polishing Methods 0.000 title claims abstract description 15
- 239000000126 substance Substances 0.000 title claims description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract description 7
- 229910052581 Si3N4 Inorganic materials 0.000 title abstract 2
- 239000000377 silicon dioxide Substances 0.000 title abstract 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 title description 19
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 34
- 229920000642 polymer Polymers 0.000 claims abstract description 33
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 27
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- 150000003856 quaternary ammonium compounds Chemical class 0.000 claims abstract description 13
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 11
- 239000004065 semiconductor Substances 0.000 claims abstract description 11
- 238000005342 ion exchange Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims description 21
- 239000002253 acid Substances 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 16
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 11
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 10
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 10
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 2
- 229910052797 bismuth Inorganic materials 0.000 claims description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 2
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 2
- KZZKOVLJUKWSKX-UHFFFAOYSA-O cyclobutylazanium Chemical compound [NH3+]C1CCC1 KZZKOVLJUKWSKX-UHFFFAOYSA-O 0.000 claims 1
- 239000003995 emulsifying agent Substances 0.000 claims 1
- IWZKICVEHNUQTL-UHFFFAOYSA-M potassium hydrogen phthalate Chemical compound [K+].OC(=O)C1=CC=CC=C1C([O-])=O IWZKICVEHNUQTL-UHFFFAOYSA-M 0.000 claims 1
- XSOKHXFFCGXDJZ-UHFFFAOYSA-N telluride(2-) Chemical compound [Te-2] XSOKHXFFCGXDJZ-UHFFFAOYSA-N 0.000 claims 1
- XAMMKFSEEQGBIC-UHFFFAOYSA-N tetra(propan-2-yl)azanium Chemical compound CC(C)[N+](C(C)C)(C(C)C)C(C)C XAMMKFSEEQGBIC-UHFFFAOYSA-N 0.000 claims 1
- HBCNJOTXLRLIAB-UHFFFAOYSA-M tetracyclohexylazanium;hydroxide Chemical compound [OH-].C1CCCCC1[N+](C1CCCCC1)(C1CCCCC1)C1CCCCC1 HBCNJOTXLRLIAB-UHFFFAOYSA-M 0.000 claims 1
- -1 tetra-ammonium oxide Chemical compound 0.000 description 19
- 239000000178 monomer Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 12
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- 150000004767 nitrides Chemical class 0.000 description 10
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- 229920005989 resin Polymers 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 239000003456 ion exchange resin Substances 0.000 description 9
- 229920003303 ion-exchange polymer Polymers 0.000 description 9
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- 229920001577 copolymer Polymers 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- 229920002125 Sokalan® Polymers 0.000 description 4
- 239000003082 abrasive agent Substances 0.000 description 4
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- 229920002554 vinyl polymer Polymers 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
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- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 229920001429 chelating resin Polymers 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008139 complexing agent Substances 0.000 description 3
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- 230000002708 enhancing effect Effects 0.000 description 3
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- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
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- 239000000523 sample Substances 0.000 description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
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- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 206010036790 Productive cough Diseases 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
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- 238000003763 carbonization Methods 0.000 description 2
- 239000003729 cation exchange resin Substances 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 2
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- 238000000151 deposition Methods 0.000 description 2
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 2
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- 238000002474 experimental method Methods 0.000 description 2
- 229940074391 gallic acid Drugs 0.000 description 2
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- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
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- 150000001247 metal acetylides Chemical class 0.000 description 2
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 2
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- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
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- 210000003802 sputum Anatomy 0.000 description 2
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- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
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- BHZOKUMUHVTPBX-UHFFFAOYSA-M sodium acetic acid acetate Chemical class [Na+].CC(O)=O.CC([O-])=O BHZOKUMUHVTPBX-UHFFFAOYSA-M 0.000 description 1
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- 150000005846 sugar alcohols Polymers 0.000 description 1
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- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 1
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- DVUVKWLUHXXIHK-UHFFFAOYSA-N tetraazanium;tetrahydroxide Chemical compound [NH4+].[NH4+].[NH4+].[NH4+].[OH-].[OH-].[OH-].[OH-] DVUVKWLUHXXIHK-UHFFFAOYSA-N 0.000 description 1
- DOYCTBKOGNQSAL-UHFFFAOYSA-M tetracyclopropylazanium;hydroxide Chemical compound [OH-].C1CC1[N+](C1CC1)(C1CC1)C1CC1 DOYCTBKOGNQSAL-UHFFFAOYSA-M 0.000 description 1
- XZHNPVKXBNDGJD-UHFFFAOYSA-N tetradecyl prop-2-enoate Chemical compound CCCCCCCCCCCCCCOC(=O)C=C XZHNPVKXBNDGJD-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- PLCFYBDYBCOLSP-UHFFFAOYSA-N tris(prop-2-enyl) 2-hydroxypropane-1,2,3-tricarboxylate Chemical compound C=CCOC(=O)CC(O)(CC(=O)OCC=C)C(=O)OCC=C PLCFYBDYBCOLSP-UHFFFAOYSA-N 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
- H01L21/31—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
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
-
- 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
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- 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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Description
200804577 九'發明說明: ^【發明所屬之技術領域】 ^ 本發明係關於一種用在半導體基材上研磨二氧化矽及 氮化矽的組成物之製造方法,並提供一種在半導體基材上 化學機械研磨二氧切及氮化料方法。該組成物i方法 可土曰進用於化學終點偵測系統中之終點偵測信號。 【先前技術】 @在半導體工業中,生產積體電路的關鍵步驟是於基材 上選擇性生成及移除膜。該膜可由各種物質製成,且並可 為導電或不導電者。導電膜係典型用作配線或配線連輪。 非導電或介電膜係用於數個領域,例如:做為金屬化層之 =的:間介電質(interleveldielectrie),或作為鄰二 路兀件間之隔絕物。 咖^型Γ製程步驟包括:⑴沉積膜,⑴利用微影及钱 ^將膜之數個區域圖案化,⑶沉積膜以填充該等經敍刻區 ^ =⑷經由_或化學機械研磨(CMP)平坦化該結 的方21由各種已知的方法在基材上形成,此等已知 ’為經由濺鍍或蒸發的物理氣相沉積⑽),化學 i膜::Γβ),以電漿強化的化學氣相沉積(PECVD)。該 方法之任—種移除,此等方法包含··化 蝕刻:雷二:’蝕刻’如:反應性離子蝕刻(RiE),濕式 x 予% ’氣相钱刻及喷塗式㈣。 要。除正:Γ厚度時’終止移除膜之製程極為重 要換句話,兄,在移除臈的期間,知道製程何時達到終點 93959 5 200804577 頗為重要。在CMP中,於化學反應性漿液存在下,藉由於 抆制里之壓力下使晶圓抵靠著研磨墊轉動(或是使該墊抵 *靠著晶圓轉動,或兩者皆轉動)而從半導體晶圓中選擇性移 除膜。若過度研磨該膜會造成產率降低,而若研磨不足就 得重做而耗費成本。因此,已利用各種方法偵測何時達到 所欲之移除終點,以及何時該結束研磨。 適用於所有種類薄膜之先前CMP終點偵測方法包括以 下颌垔之測里.(1)僅按照時間,(2)摩擦電流或電動電流, (3)電容’(4)光學,(5)聲學,(6)導電性及(7)化學。化學 終點福測(例如:參見Li等人,美國專利第6, 〇21,679號) 尤=普遍使用,因為其能在研磨期間提供即時及持續的漿 液刀析’一旦研磨達該氮化物層時立即傳送直接訊號終 點,以及回應時間快速(典型少於一秒)等優點。 、 已發現當使用含有氫氧化卸⑽H)之漿液對以標輕氧 〜物(Si〇2)膜覆盍在氮化物(si.)終止膜上而成的基材進 _仃化學機械研磨時,在達_氧化物/氮化物的界面時會發 生化學反應而造成NH3的產生。當研磨氧化物
列反應: V S1O2+ 2K0H+ H2O-K2S1O3+ 2Η2〇 ®研磨氮化物時,發生下列反應: S13N4+ 6K0H+ 3H2〇^3K2Si〇3+4NH3 2產生的氨係溶於漿液中,並主要以·3而非腦+的 下二Γ在因此’錢液中存在氨意味著已到達並研磨到 虱化物膜,且移除氧化物膜的終點可由監控氨在漿 93959 6 200804577 液中的濃度而定出。一旦達終點時,該研磨即終止。 ±典型地,為了铺測及監控氣體形態的氨,將來自研磨 裝置之漿液泵送至氨萃取單元。分析該含氨的氣體流並監 控以偵測移除該標㈣之終點。氣相化學分析如標準質譜 術具有高度靈敏性及快速回應時間,故而適用於終點偵°曰 測。不幸地’進行漿液取樣時,可能因㈣液組成物本身 所產生之任何殘餘氨而產生實質上的干擾,使得準確的終
點偵測變得極為困難。 .因此,需要一種對淺溝槽隔離製程(处&11挪trench isolat1C)n prQcess)r^,具有增進終點偵測能力的二氧 化矽及氮化矽之化學研磨方法及組成物。 【發明内容】 二在第—態樣中,本發明提供—種在半導體基材上研磨 氮切用之組成物的製造方法,該方法包括: 鏖至5久合物進行離子交換以降低其氨含量;以及將0.01 重旦里百刀比的經離子交換的羧酸聚合物與0. 001至1 苯=分比的四級銨化合物、請4 i重量百分比的鄰 甲酸及其鹽、0.01至5重量百分比的研磨料及餘量水 機械及树明提供一種在半導體基材上化學 磨塾及含切的方法,該方法包括:提供研 聚人物、——减鈽研磨料之滎液,·使將用於鎌的叛酸 至^减進行離子錢以降低錢中的氨濃度至10ppb ⑽之間’以及利用該研磨墊及含有該羧酸聚合物之氨 93959 7 200804577 含量減低溶液之漿絲研磨該基材。 ‘【實施方式】 ’—及更方特=學r侧統中所用之终點 取降低氛含量,二本發明的組成物及方法係採 於Ηθ ^ b改ϋ化學終點偵測系統的準確性。太 :播利用離子交換樹脂降低該組成 低任何源自漿液中鱗令L 3里以降 物進扞雜早六始、 干擾。特別是使該羧酸聚合 外,今组成二屮=降低含二氧化飾之衆液令的氨含量。此 合移之外地選擇性移除二氧化石夕而較不 二I卞 ㈣溝槽隔離$程而s’該組成物利於的 切Γ 擇性增強劑’以選擇性研磨二氧化石夕而較不 :研磨鼠切。包括四級銨化合物之組成物在施用之帥 下尤其能選擇性研磨二氧化矽’而較不會研磨氮化矽。 本發明之四級銨化合物包含下列結構··
Ri
I R4—N+—R2
Rs 其中Rl’R2,R3及R4是具有1至15個碳原子碳鏈長度之有 機基。較佳者,Rl,r2,1及R4具有丄至1〇個石炭原$之碳 鏈長度。最佳者Rl,R2’ RS及R4具有丨至5個碳原子之碳 鏈長度。該有機化合物的R, ’ Rz ’匕及L可為經取代或未 、二取代之芳基、烧基、芳烧基或烧芳基。該等陰離子的例 T包含:硝酸根、硫酸根、鹵化物(如:溴化物、氯化物、 氟化物及碘化物)、檸檬酸根、磷酸根、草酸根、蘋果酸根、 93959 8 200804577 葡萄糖酸根、氳氧根、醋酸根、硼酸根、 子匕S夂很、硫氰酸 根、氰酸根、磺酸根、矽酸根、過鹵化物f 切、如·過溴酸醆、 過氯酸鹽及過碘酸鹽)、鉻酸根,及包括上述陰離子之丨、 一種之混合物。 ϋ
較佳=四級銨化合物包含:氯氧化四甲錢、氣氧化四 ?銨、氳氧化四丙銨、氫氧化四異丙銨、氫氧化四環丙銨、 氫氧化四丁銨、氫氧化四異丁銨、氫氧化四第三丁銨、氡 氧化四第二τ銨、氫氧化四環丁錢、氫氧化四戊銨、^ 化四環戊銨、氫氧化四己錢、氫氧化四環己銨及其混合物。 取佳之四級銨化合物為氫氧化四甲銨。 該組成物利於含有〇.謝幻重量百分比㈣㈣化 合物,以選擇性移除該二氧切而較不移除氮切。該植 成物利於含有G. 01至G. 5重量百分比的四級銨化合物。 除了四級銨化合物,該組成物宜含有〇〇〇1至〗重量 百分比的錯合劑。該組成物更宜含有0·01 1 0.5重量百分 #比的錯合劑。錯合劑的實例包含:«化合物(例如:乙醢 化物等),單㈣鹽(如:醋酸鹽、芳基㈣鹽等),含 们或夕個經基之羧酸鹽(如:乙醇酸鹽、乳酸鹽、葡萄 1酸鹽、沒食子酸及其鹽等),二、三及錄酸鹽(如:草 酉:鹽、鄰苯二甲酸鹽、檸檬酸鹽、丁二酸鹽、酒石酸鹽、 ^果酉 1鹽、乙二胺四乙酸鹽(如:edtaD,及其混合物 3有個或多個磺酸基及/或膦酸基之羧酸鹽。同樣 一户其匕適合的錯合劑包含:例如:二,三或多醇(如:乙 醇兒余酜、焦性沒食子酚、鞣酸等)及含磷酸化合物 9 93959 200804577 (如:鱗鹽及膦酸)。該錯合劑較佳為 較佳之鄰苯二曱酸鹽包含 氫鉀及其混合物。 鄰苯二甲 鄰苯二曱酸及其鹽。 酸氫銨、鄰苯二甲酸 該新穎研磨組成物宜含有〇 ^ r _ 3有01至5重量百分比的羧酸 聚合物。該組成物宜含有〇 〇5 $ ^ 至3重量百分比的羧酸聚合 旦丁 L 1 户、有 20, 000 至 1,500, 000 之數 里平均分子量。此外,還可利用έ 、, j才』用車乂向的數量平均分子量的
羧酸聚合物與較低的數量平约八 B ^ _ 十9刀子1的羧酸聚合物之摻合 物。這些缓酸聚合物一般呈容 、 壬/合/夜形式,但也可呈水性分散 液形式。前述聚合物的數量平妁八 双里十均分子量是由GPC(凝膠滲透 層析術)測定。
該竣酸聚合物由不餘和單叛酸或不餘和二致酸形成。 典型的不飽和單㈣單體含有3至6個碳原子,i包含. 丙烯酸、寡聚丙稀酸、甲基丙婦酸1豆酸及乙婦基乙酸。 典型的不飽和二㈣含有4至8個躲子且包含該等之酸 酐’例如:順丁稀二酸、順丁烯二酸酐、反丁烯二酸、戊 :酸、伊康酸、伊康酸酐及環己二羧酸。此外,亦可使用 前述該等酸的水溶性鹽。 ,此外,退可使用含幾酸之共聚物及三元聚合物,其中 破酸成分佔聚合物之5至75重量百分比。此等聚合物之典 型是⑽)丙婦酸與丙烯醯胺或甲基丙烯醯胺之聚人物· (甲基)丙賴與苯乙料其它乙縣芳族單體之聚合物; (甲基)丙烯酸烧酉旨(丙賴酯或甲基丙蝉酸醋)與單或二羧 酸(如丙烯酸或^基丙婦酸或伊康酸)之聚合物,·具有取代 93959 10 200804577 基如鹵素(例如··氯、氟)、硝基、氰基、烷氧基、鹵烷基、 羧基、胺基、胺烷基之經取代乙烯基芳族單體與不飽和單 或二羧酸及(甲基)丙烯酸烷酯之聚合物;含有氮環如乙烯 基吡啶、烷基乙烯基吡啶、乙烯基丁内醯胺、乙醯基己内 胺之單烯系不飽和單體與不飽和單或二紱酸之聚合物; 烯烴如丙烯、異丁烯或具有10至20個碳原子之長鏈烷烯 烴與不飽和單或二羧酸之聚合物;乙烯醇酯(如乙酸乙烯 醋、硬脂酸乙烯g旨)或乙烯鹵化物(如氟乙埽、氯乙烯、偏 一氟乙烯)或乙烯腈(如丙烯腈及甲基丙烯腈)與不飽和之 單或二羧酸之聚合物;烷基具有1至24個碳原子之(甲基) 丙烯酸烧酯與不飽和之單賴(如丙烯酸或甲基丙稀酸)之 承口物這些僅為可使用在本發明新穎研磨組成物中之各 種聚合物的少數實例。亦可使用生物可分解、光可分解或 用f匕方式可分解之聚合物。此等生物可分解組成物的例 子,含有聚(丙烯酸酉旨/2_氰基丙烯酸甲醋)段之聚丙稀酸 聚合物。 ㈣酸聚合物宜進行離子交換,以降低氨含量, 旎會干擾利用氨偵測之終點偵測系統。尤其本 脂中納入陰離子基團。該陰離子基團使得 =離子讀—能夠吸附可溶解 子(例如:Na+、r、Ca+2、Pm, 丁如i屬離 ^ ^ Fe等)亚吸附水溶液中的氨。 餐月的U脂能降低陽離 去,太狀叩 丁 /辰度至iUPPb至2ppm之間。較佳 者本鲞明的樹脂能降低陽離早:曲译$ μ u 間。最佳去.牛低險雔子艰度至50ppb至“卯之 I’本發明的樹脂能降低陽離子濃度至低於 93959 11 200804577 lOOppb至200卫口1)。這些離子交換樹脂典型地利用強酸使該 ^等被吸附之離子解吸附且以水合氫離子置換而再生。較佳 、的離子交換樹脂包含:購自Rohm and Haas公司 (Philadelphia, PA)之Amber lite®離子交換樹脂。較佳的 離子交換樹脂是Amberlite® IRN-77。 本發明陽離子交換樹脂可具有凝膠珠粒(例如:球面凝 膠珠粒或巨孔珠粒)之物理形式,其包含:巨網狀珠粒或研 成粉末之凝膠或巨孔樹脂之樹脂粒子。此類經研成粉末之 *粒子可利用已知的研成粉末技術自經塊狀聚合化或經懸浮 聚合化之聚合物衍生出。 較佳的離子交換樹脂粒子是由官能性交聯製備,而習 知技術中之經懸浮聚合的共聚物珠粒係作為離子交換樹脂 之前驅物。該等凝膠共聚物珠粒在一致深度的外殼中載有 該等的官能基。因為用來製備該等珠粒的官能性製程係以 一致的速度滲透該共聚物,所以除了只有最小珠粒未完全 •官能化(即;未完全地磺酸化)之外,所有珠粒,不管珠粒 的尺寸如何,經官能化層的厚度傾向一致性。結果,不管 珠粒尺寸是否具備一致性,該擴散路徑具高度一致性。 適用於製備交聯共聚物之單體,包含:單乙烯基芳族 單體,例如:苯乙烯、乙烯基甲苯、乙烯基萘、乙基乙烯 基苯、乙烯基氯苯、氯曱基苯乙烯等,其佔製成共聚物之 單體中之50至99. 5莫耳百分比,較佳佔80至99莫耳百 分比;以及具有至少二個可與單乙烯基單體聚合之活性乙 烯基團之多乙烯基單體,其佔製成共聚物之單體之0.5至 12 93959 200804577 50莫耳百分比,較佳佔1至大約20莫耳百分比。適用的 多乙烯基單體的實例包含:二乙烯基苯、三羥曱基丙姨*二 曱基丙烯酸酯、乙二醇二甲基丙烯酸酯、二乙烯基甲苯、 三乙烯基苯、二乙烯基氯苯、鄰苯二甲酸二烯丙醋、二乙 烯基吡啶、二乙烯基萘、乙二醇二丙烯酸酯、新戊二醇二 曱基丙烯酸酯、二乙二醇二乙烯基醚、雙驗二甲基丙烯 酸酯、新戊四醇四曱基丙烯酸酯、新戊四醇三甲基丙烯酸 酯、二乙烯基二曱苯、二乙烯基乙基苯、二乙烯基颯、二 乙烯基酮、二乙烯基硫醚、丙烯酸烯丙酯、順丁烯二酸二 烯丙酯、反丁烯二酸二烯丙酯、琥珀酸二烯丙酯、石戾酸二 烯丙酯、丙二酸二烯丙酯、草酸二烯丙酯、己二酸二烯丙 酯、癸二酸二烯丙酯、酒石酸二烯丙酯、矽酸二烯丙酯、 丙烧-1,2,3 -二叛酸二稀丙醋(diallyl tricarballylate)、烏頭酸三烯丙酯、檸檬酸三烯丙酯、 磷酸三烯丙酯、Ν,Ν’-亞甲基-二丙烯醯胺、n,N,-亞甲基〜 一曱基丙細醮胺、N,N,-伸乙基二丙浠 多乙烯基恩;以及二醇、甘油、新戊四醇、間苯二酚的多 烯丙基醚及多乙烯基醚;以及二醇之單硫及二硫衍生物。 該單體混合物亦可含有多達約5莫耳百分比之不會影響最 終樹脂基質的基本性質的其它乙烯系單體,例如:丙稀a睛、 丁二烯、甲基丙烯酸以及其他本技術已知者。在本發^ 具體例中,該共聚物粒子是丙烯酸酯共聚物粒子。 官能化之-所欲形式為石黃化,本發明能提供部分 樹脂,该部分石黃化樹脂不論在溶劑膨潤狀態與非膨潤狀態 93959 13 200804577 於%行水丨生離子父換時,對於負载壓力以及再生循環 之耐受性皆明顯優於磺化習用聚合物所形成的樹脂。 、該,磨組成物宜含有〇· 〇1至5重量百分比的研磨料以 、進氧化;5夕的移除。在此範圍内’期望研磨料之存在量 ί大於或等於0.1重量百分比。同樣地,在此範圍内,期 王研磨料之存在量少於或等於3重量百分比。
二、該研磨料具有50至2〇〇奈米(nm)之平均粒子尺寸。以 此說明書之目的而言’粒子尺寸係指研磨料的平均粒子尺 寸車乂仏者’期望使用具有於8〇至⑽之間之平均粒子 士寸的研磨料。右使研磨料尺寸減小至少於或等於術① 日守’則會傾向增進該研練成物之平城能力,但是,其 亦傾向降低移除速率。 研磨料的貫例包含:無機氧化物、無機氫氧化物、金 *硼化物、金屬碳化物、金屬氮化物、聚合物粒子及包括 返中之至J/ 一種的混合物。合適的無機氧化物包含,例 籲如:二氧化矽(Si〇2)、三氧化二鋁(Al2〇3)、二氧化鍅 (Μ)、二氧化鈽(Ce〇2)、二氧化錳_〇或包括前述氧化 物中之至少—種之組合。如有需要,亦可利用這些無機氧 化物的經改質形式,如:經聚合物塗布之無機氧化物粒子 、及、.二,,、、機塗布粒子。合適的金屬碳化物,硼化物及氮化 物包含,例如:碳化石夕、氮化石夕、礙氮化石夕(SiCN)、碳化 领、碳化鶊、碳化錯、领化銘、碳化叙、碳化鈦或包括前 述金屬碳化物、硼化物及氮化物中之至少一種之組合。如 果需要’鑽石亦可用來做為研磨料。替代性研磨^包含 93959 14 200804577 κ 口物粒子n塗布之聚合物粒子。較佳磨料為二 ★鈽。 在3有餘里水的溶液中該化合物在廣泛邱範圍提供 其效力^該溶液適用的pH範圍自4延伸至7。此外,該溶 液較佳罪餘量的去離子水以限制伴隨的雜質。本發明研磨 漿體f PH值較佳係4·5至U,更佳者為pH值係5至6.5。 用來调整本發明組成物pH值之酸係,例如:石肖酸、硫酸、 ^酉夂、%酸等。用來調整本發明組成物⑽值的驗之例子 是,例如:氫氧化鉀。 ,口此,本發明提供—種用於化學終點偵測系統中之具 有增強終點偵測信號之組成物及方法。特別是,本發明的 1成物及方法是用來降低氨含量,藉此可增進化學終點債 準。本發明最佳利用離子交換樹脂降低該組 中的虱含1以降低任何由源自漿液之氨污染物之干 擾。該組成物適用於淺槽溝隔離製程的半導體晶圓上研磨 了乳切錢切。特別是,㈣酸聚合物係用離子交換 乳化鈽系漿液中的氨含量。此外,該組成物最佳 G一用來增進選擇性之四級銨化合物。特別是,本發明提 種t半Γ晶圓上研磨二氧切及氮切用之水性組 成物包括四級銨化合物、鄰苯二甲酸及H '酸聚合物、研磨料及餘量水。該組成物在pH值“二 的乾圍内展現出特別增加的選擇性。須注意的是,雖 ㈣的具體例著重於該鲮酸聚合物中氨含量之降低,:本 發明亚不以此為限。換句話說,若有必要時,裝液中的任 93959 15 200804577 可藉由進行離子 何組成及成分’例如,該四級銨化合物 - 交換而降低任何的氨含量。 、 實施例1 所有樣本溶液含有,以重量百分比計,8重量百八 比的二氧化鈽,0.18重量百分比的聚丙烯酸以及二; 量百分比的鄰苯二?酸氫卸。此外’本發明樣本中還含有 0.12重量百分比的四級銨化合物,特別是,氫氧化四甲 按。該漿液係由混合研磨料包及化學物質包而予以製傷。 該研磨料包係藉由利用葉片混合器將聚丙婦酸的濃縮物溶 於去離子水中並將二氧化鈽濃縮物加入至該聚丙稀酸溶液 而予以製造。該聚丙烯酸聚合物宜以Amberlite irn_77 離子交換樹脂進行離子交換。該離子交換樹脂購自
Siemens Water Technol〇gies(Warrendale,PA),且呈在 圓筒中之形式。將該羧酸聚合物溶液稀釋至5百分比以降 低該溶液之黏度。將該溶液泵送至裝填有陽離子交換樹脂 #的圓筒中。該溶液通過該樹脂床且在pH值小於3時流出, 流出液實質上不含任何陽離子性物種(如:金屬離子或 氨)。接著,該二氧化鈽-聚丙烯酸—水混合物利甩硝酸滴 定。該混合物接著倒入高剪力的卡第研磨機(Kady Mi i丄) 中。該化學物質包係藉由將剩下的化學物質依適當量溶解 於去離子水中’並用葉片混合器混合,再以硝酸滴定至最 後所欲的pH值而予以製備。該最終漿液是藉由將該研磨料 包與該化學物質包混合並滴定至所欲的pH而予以製備。 、該圖案化晶圓為購自praesagUS,Inc•且具有HDP與 16 93959 200804577 "LPCVD-SiN 膜之 STI-MIT-864tm遮罩。該 MIT-864 遮罩被設 〃計成具有由4mmx4mm特徵構成的20mmx20mm晶片。該遮罩 ’中的特徵具有100//m的間距且密度範圍自10%至100%,以 及5 0 %密度者間距範圍為1至1 0 0 0 // m。在此,5 0 %的密度 是以重複結構陣列中的間隔來定義,其中該間隔寬度/(間 隔寬度+線寬度)xl00%=50%。例如:如果該間隔寬度+線 寬度= 1000微米時,則有50%的間隔具有500微米的寬度。 I CIO 10TM研磨墊係用於所有測試中。Applied Materials • Mirra® 200mm研磨機器係使用IC1010TM聚胺基甲酸酯研磨 墊(Rohm and Haas Electronic Materials CMP Inc., Newark, DE)於下壓力2.7psi及研磨溶液流速85cc/min, 平台轉速123RPM及載具轉速44RPM的條件下將樣品平坦 化。該研磨溶液以硝酸調整至pH值6. 1。所有溶液含有餘 量的去離子水。氧化物及氮化物膜厚度是利用來自 Therma-Wave,Inc 的 Opti-probe® 2600 度量衡工具來測 •量。 如第ΙΑ、1B圖所例示說明,呈示研磨後從晶片的中 心、中間及邊緣所得之晶圓尺度均勻性之保持度的平均 值。如第1A圖所示,該晶片範圍内的平均溝槽是300至 400 A。如第1B圖所示,晶片範圍内的氮化物厚度是150 A。溝槽氧化層損失的總量將反映出出現淺碟及凹陷的組 合。 實施例2 本實驗將化學終點資料結果與摩擦及光學資料做比較 17 93959 200804577 以分析終點穩固性。該化學終點偵測系統是Ec〇 physics ^的Eco Systems M17 Ν-EPD。其它所有的參數與實施例工 "相同。 如第2圖所例示說明,該化學終點是最直接的判讀方 法(on/ of f )、’而容許咼速製造。該化學終點係在摩擦 終點或光學終點前1〇至15秒内偵測到。該化學終點容許 增強過度研磨窗口之可靠性及製程穩固性。 實施例3 • ^ 本實驗將化學終點資料結果與摩擦及光學資料做比較 以分析平坦化效率。該化學終點偵測系統與實施例2相 同。其它所有的參數與實施例1相同。 如第3A、3B圖所闡述,該利用化學終點之最佳化製程 顯著^增進平坦化效率。該化學終點系統增進氧化物清除 之可靠度及縮短過度研磨需求。 因此,本發明提供一種用在化學偵測系統中具有增進 籲終點偵測信號之組成物及方法。更特定而言,本發明的組 ^物及方法是用來降低氨含量,藉此可增進化學終點偵測 系統的,確性。本發明最佳利用離子交換樹脂降低該組成 物中的氨含量以降低任何由源自漿液之氨污染物之干擾。 該組成物適合在淺槽溝隔離製程中,於半導體晶圓上研磨 二氧化矽及氮化矽。 【圖式簡單說明】 ^第1 A圖例示說明研磨後從晶片的中心、中間及邊緣所 得之全晶圓尺度均勻性之保持度的平均值,· 93959 18 200804577 第1B圖例示說明研磨後從晶片的中心、中間及邊緣 ^得之全晶圓尺度均勻性之保持度的平均值· ' ,.第2圖例示說明利用各種終點偵測技術所獲得之結 果, 坦化=圖例示說明利用各種終點偵測技術所獲得之平 第兆圖例示說明利用各種終點偵測技術所獲得之平 坦化效率。
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Claims (1)
- 200804577 十、申請專利範圍: 4 -種在半導體基材上研磨二氧切 的製造方法,包括·· ^ 且成物 使竣酸聚合物進行離子交拖 η 〇1 卞又換以降低其氨含量;以及 、·至5重:!:百分比的經離丄 物盥0 001至1會旦百八L I工雔子父換的羧酸聚合 Μ旦石八μ 刀比的四級録化合物、0.001至 1重篁百刀比的鄰苯二甲酸及其鹽、〇 〇1 比的研磨料以及餘量水混合。 ——百刀 2·如申请專利範圍第1項之方 ^ A ^ /、中該四級銨化合物係 k自包括下列化合物之群έ 气 乙铉..„ 砰、、且·虱乳化四甲銨、氫氧化四 化四丙銨、氣氧化四異丙銨、氫氧化四環丙 ==:銨、氣氧化四異丁鏔、氫氧化四第三丁 铵/乐一丁銨、虱乳化四環丁銨、氫氧化四戊 及其混合物。& 4化四己銨、氫氧化四環己銨 3·如申請專利範圍第1項 鄰苯二甲酸氫鉀。、、令該鄰苯二甲酸鹽是 錦U利耗圍第1項之方法,其中該研磨料是二氧化 其中該二氧化鈽具有 其中該二氧化鈽具有 5·如申請專利範圍第4項之方法 5〇至20Onm之平均粒子尺寸 6·如申請專利範圍第5項之方法 8〇至150賴之平均粒子尺寸。 如申请專利範圍第1項 、之方法,其中該水性組成物具有 93959 20 200804577 4至7之pH值。 -8. —種在半導體基材上化學機械研磨二氧化^夕及氮化石夕 ’ 的方法,包括: 提供研磨墊及含有二氡化鈽研磨料之漿液; 使將用於漿液的羧酸聚合物溶液進行離子交換,以 使該溶液中的氨含量減低至1 Oppb至2ppm之間;以及 使用該研磨墊及含有該羧酸聚合物之氨含量減低 溶液之漿液研磨該基材。 ⑩9.如申請專利範圍第8項之方法,其中該二氧化鈽具有 50至200腿之平均粒子尺寸。 10.如申請專利範圍第8項之方法,其中該水性組成物具有 4至7之pH值。21 93959
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JP5186707B2 (ja) * | 2006-09-15 | 2013-04-24 | 日立化成株式会社 | Cmp研磨剤、cmp研磨剤用添加液及びこれらを用いた基板の研磨方法 |
US20090181475A1 (en) * | 2008-01-11 | 2009-07-16 | Novellus Systems, Inc. | Detecting the presence of a workpiece relative to a carrier head |
WO2010036358A1 (en) | 2008-09-26 | 2010-04-01 | Rhodia Operations | Abrasive compositions for chemical mechanical polishing and methods for using same |
US8735293B2 (en) * | 2008-11-05 | 2014-05-27 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Chemical mechanical polishing composition and methods relating thereto |
CN102714132A (zh) | 2009-12-18 | 2012-10-03 | 睿纳有限责任公司 | 用于去除衬底层的方法 |
US8671685B2 (en) * | 2010-03-08 | 2014-03-18 | Tma Power, Llc | Microturbine Sun Tracker |
CN102464946B (zh) * | 2010-11-19 | 2015-05-27 | 安集微电子(上海)有限公司 | 一种化学机械抛光液及其应用 |
US9564337B2 (en) * | 2010-12-24 | 2017-02-07 | Hitachi Chemical Co., Ltd. | Polishing liquid and method for polishing substrate using the polishing liquid |
US8808573B2 (en) * | 2011-04-15 | 2014-08-19 | Cabot Microelectronics Corporation | Compositions and methods for selective polishing of silicon nitride materials |
WO2023145572A1 (ja) * | 2022-01-28 | 2023-08-03 | Agc株式会社 | 研磨剤、研磨剤用添加液および研磨方法 |
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US6126848A (en) * | 1998-05-06 | 2000-10-03 | International Business Machines Corporation | Indirect endpoint detection by chemical reaction and chemiluminescence |
US6228280B1 (en) * | 1998-05-06 | 2001-05-08 | International Business Machines Corporation | Endpoint detection by chemical reaction and reagent |
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US6899784B1 (en) * | 2002-06-27 | 2005-05-31 | International Business Machines Corporation | Apparatus for detecting CMP endpoint in acidic slurries |
US20050108947A1 (en) * | 2003-11-26 | 2005-05-26 | Mueller Brian L. | Compositions and methods for chemical mechanical polishing silica and silicon nitride |
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SG137837A1 (en) | 2007-12-28 |
FR2901802B1 (fr) | 2012-11-30 |
US20070281483A1 (en) | 2007-12-06 |
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DE102007024142A1 (de) | 2007-12-06 |
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