KR102581526B1 - 탄화규소 분말, 이의 제조방법 및 이를 이용하여 탄화규소 잉곳을 제조하는 방법 - Google Patents
탄화규소 분말, 이의 제조방법 및 이를 이용하여 탄화규소 잉곳을 제조하는 방법 Download PDFInfo
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- KR102581526B1 KR102581526B1 KR1020220104819A KR20220104819A KR102581526B1 KR 102581526 B1 KR102581526 B1 KR 102581526B1 KR 1020220104819 A KR1020220104819 A KR 1020220104819A KR 20220104819 A KR20220104819 A KR 20220104819A KR 102581526 B1 KR102581526 B1 KR 102581526B1
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 724
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 358
- 238000000034 method Methods 0.000 title claims abstract description 158
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 87
- 239000002245 particle Substances 0.000 claims abstract description 399
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 74
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 21
- 239000010703 silicon Substances 0.000 claims abstract description 21
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims description 233
- 238000010191 image analysis Methods 0.000 claims description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000000227 grinding Methods 0.000 claims description 25
- 239000008367 deionised water Substances 0.000 claims description 20
- 229910021641 deionized water Inorganic materials 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 8
- 230000007547 defect Effects 0.000 abstract description 19
- 229910000831 Steel Inorganic materials 0.000 description 78
- 239000010959 steel Substances 0.000 description 78
- 239000013078 crystal Substances 0.000 description 60
- 239000003575 carbonaceous material Substances 0.000 description 50
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 44
- 238000005530 etching Methods 0.000 description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 32
- 239000000843 powder Substances 0.000 description 32
- 238000001312 dry etching Methods 0.000 description 31
- 239000012535 impurity Substances 0.000 description 31
- 238000004140 cleaning Methods 0.000 description 25
- 239000012298 atmosphere Substances 0.000 description 24
- 229910002804 graphite Inorganic materials 0.000 description 24
- 239000010439 graphite Substances 0.000 description 24
- 239000011810 insulating material Substances 0.000 description 24
- 229910052751 metal Inorganic materials 0.000 description 24
- 239000002184 metal Substances 0.000 description 24
- 235000012431 wafers Nutrition 0.000 description 24
- 238000001039 wet etching Methods 0.000 description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 18
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 18
- 229910052742 iron Inorganic materials 0.000 description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 15
- 229910052760 oxygen Inorganic materials 0.000 description 15
- 239000001301 oxygen Substances 0.000 description 15
- 239000000243 solution Substances 0.000 description 14
- 239000007789 gas Substances 0.000 description 13
- 239000010935 stainless steel Substances 0.000 description 13
- 229910001220 stainless steel Inorganic materials 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 11
- 229910021642 ultra pure water Inorganic materials 0.000 description 11
- 239000012498 ultrapure water Substances 0.000 description 11
- 238000005498 polishing Methods 0.000 description 9
- 238000005406 washing Methods 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 238000000498 ball milling Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 239000012774 insulation material Substances 0.000 description 7
- 229910017604 nitric acid Inorganic materials 0.000 description 7
- 238000000527 sonication Methods 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000009775 high-speed stirring Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 6
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 5
- 238000005452 bending Methods 0.000 description 5
- 238000005119 centrifugation Methods 0.000 description 5
- 229910003460 diamond Inorganic materials 0.000 description 5
- 239000010432 diamond Substances 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 5
- 239000011737 fluorine Substances 0.000 description 5
- 229910052731 fluorine Inorganic materials 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000010306 acid treatment Methods 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 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 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 238000000815 Acheson method Methods 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000432 density-gradient centrifugation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000001036 glow-discharge mass spectrometry Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/956—Silicon carbide
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/36—Carbides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02002—Preparing wafers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/956—Silicon carbide
- C01B32/963—Preparation from compounds containing silicon
- C01B32/97—Preparation from SiO or SiO2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/11—Powder tap density
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Carbon And Carbon Compounds (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
Abstract
Description
도 2는 일 실시예에 따른 탄화규소 분말의 제조 과정을 도시한 순서도이다.
도 3은 일 실시예에 따른 탄화규소 분말의 제조 과정을 도시한 순서도이다.
도 4는 일 실시예에 따른 탄화규소 분말의 제조 과정을 도시한 순서도이다.
도 5는 일 실시예에 따른 탄화규소 분말의 제조 과정을 도시한 순서도이다.
도 6은 일 실시예에 따른 탄화규소 분말의 제조 과정을 도시한 순서도이다.
도 7은 탄화규소 잉곳을 성장시키는 과정으로 도시한 단면도이다.
구분 | 1차 분말 평균입경(D50, ㎜) | 볼 직경 (㎜) |
실린더 회전수(rpm) | 2차 분쇄 시간(분) | 2차 분말 평균 입경(D50, ㎛) |
제조예1 | 6 | 25.4 | 20 | 35 | 150 |
제조예2 | 6 | 25.4 | 20 | 15 | 500 |
제조예3 | 6 | 25.4 | 20 | 10 | 1000 |
제조예4 | 10 | 37 | 20 | 10 | 2000 |
제조예5 | 10 | 25.4 | 20 | 10 | 3000 |
제조예6 | 8 | 37 | 25 | 20 | 450 |
구분 | 안식각 (˚) |
탭 밀도 (㎏/㎥) |
제조예1 | 29.5 | 1550 |
제조예2 | 33.4 | 1705 |
제조예3 | 35.3 | 1629 |
제조예4 | 36.5 | 1610 |
제조예5 | 35.1 | 1740 |
제조예6 | 34.5 | 1650 |
구분 | 입자 원형도 | 입자 연신도 | 입자 굴곡도 |
제조예1 | 0.670 | 0.862 | 0.939 |
제조예2 | 0.617 | 0.816 | 0.940 |
제조예3 | 0.615 | 0.891 | 0.879 |
제조예4 | 0.613 | 0.872 | 0.875 |
제조예5 | 0.657 | 0.905 | 0.891 |
제조예6 | 0.662 | 0.875 | 0.938 |
구분 | 입경 50㎛ 미만 함량 (초음파 처리 전, wt%) |
입경 10㎛ 미만 함량 (초음파 처리 전, wt%) |
입경 5㎛ 미만 함량 (초음파 처리 전, wt%) |
제조예1 | 9.5 | 2.5 | 1.5 |
제조예2 | 4.2 | 1.3 | 0.4 |
제조예3 | 3.4 | 1.0 | 0.2 |
제조예4 | 3.0 | 0.8 | 0.1 |
제조예5 | 2.5 | 0.8 | 0.1 |
제조예6 | 4.1 | 1.3 | 0.5 |
구분 | 입경 50㎛ 미만 함량 (초음파 처리 후, wt%) |
입경 10㎛ 미만 함량 (초음파 처리 후, wt%) |
입경 5㎛ 미만 함량 (초음파 처리 후, wt%) |
제조예1 | 9.5 | 2.5 | 1.6 |
제조예2 | 4.2 | 1.3 | 0.4 |
제조예3 | 3.3 | 1.1 | 0.2 |
제조예4 | 3.0 | 0.8 | 0.1 |
제조예5 | 2.5 | 0.8 | 0.1 |
제조예6 | 4.1 | 1.3 | 0.5 |
구분 | 탄화규소 분말 | 벌크 밀도(㎏/㎥) | 기공도(vol%) |
실시예 1 | 제조예 1 | 1440 | 48.2 |
실시예 2 | 제조예 2 | 1689 | 47.5 |
실시예 3 | 제조예 3 | 1518 | 48.8 |
실시예 4 | 제조예 4 | 1493 | 48.1 |
실시예 5 | 제조예 5 | 1625 | 47.8 |
실시예 6 | 제조예 6 | 1544 | 48.5 |
비교예 | Washington Mills 사의 Carborex | 1525 | 48.3 |
구분 | 성장율(㎛/hr) | 결함(EPD, /㎠) |
실시예 1 | 280 | 9920 |
실시예 3 | 282 | 7820 |
실시예 4 | 271 | 9620 |
실시예 5 | 268 | 14340 |
실시예 6 | 275 | 14920 |
실시예 7 | 271 | 13760 |
비교예 | 250 | 16354 |
단열재 40
탄화규소 잉곳 12
Claims (11)
- 탄소 및 규소를 포함하는 탄화규소 입자를 포함하고,
초음파 처리 후 입경 50㎛ 미만의 질량 비율이 10wt% 이하이고,
상기 초음파 처리 전의 입경 10㎛ 미만의 탄화규소 입자의 질량 비율과 상기 초음파 처리 후의 입경 10㎛ 미만의 탄화규소 입자의 질량 비율의 차이는 0.5wt% 미만이고,
2차원 이미지 분석을 통하여 측정되는 입자 원형도가 0.4 내지 0.9이고,
상기 2차원 이미지 분석을 통하여 측정되는 입자 굴곡도가 0.8 내지 0.99이고,
상기 초음파 처리의 조건은 하기와 같은 탄화규소 분말.
[초음파 처리 조건]
1) 10ℓ의 탈이온수에 약 1:1의 부피비로 상기 탄화규소 분말이 투입된다.
2) 40kHz의 주파수 및 1200W의 출력을 가지는 초음파가 상기 탄화규소 분말에 5분 동안 인가된다. - 제 1 항에 있어서, 초음파 처리 후 입경 10㎛ 미만의 질량 비율이 3wt% 이하인 탄화규소 분말.
- 제 2 항에 있어서, 초음파 처리 후 입경 5㎛ 미만의 질량 비율이 2wt% 이하인 탄화규소 분말.
- 제 2 항에 있어서, 평균 입경(D50)이 100㎛ 내지 5000㎛인 탄화규소 분말.
- 삭제
- 삭제
- 제 1 항에 있어서, 안식각이 30˚ 내지 45˚인 탄화규소 분말.
- 제 1 항에 있어서, 탭 밀도가 1000 kg/㎥ 내지 2000kg/㎥ 인 탄화규소 분말.
- 탄화규소를 포함하는 원료를 제공하는 단계;
상기 원료를 분말화하는 단계; 및
상기 분말화된 원료를 물리적으로 처리하는 단계를 포함하고,
초음파 처리 후 입경 50㎛ 미만의 질량 비율이 10wt% 이하인 탄화규소 분말의 제조방법. - 제 9 항에 있어서, 상기 분말화된 원료를 물리적으로 처리하는 단계는 입경 50㎛ 미만의 탄화 규소 입자를 탈리시키는 단계를 포함하는 탄화규소 분말의 제조방법.
- 탄소 및 규소를 포함하는 탄화규소 입자를 포함하고, 초음파 처리 후 입경 50㎛ 미만의 질량 비율이 10wt% 이하인 탄화규소 분말을 준비하는 단계;
상기 탄화규소 분말을 사용하여 탄화규소 잉곳을 성장시키는 단계; 및
상기 탄화규소 잉곳을 가공하는 단계를 포함하는 탄화규소 웨이퍼의 제조방법.
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