WO2005059975A1 - セラミックヒータユニット - Google Patents
セラミックヒータユニット Download PDFInfo
- Publication number
- WO2005059975A1 WO2005059975A1 PCT/JP2004/017877 JP2004017877W WO2005059975A1 WO 2005059975 A1 WO2005059975 A1 WO 2005059975A1 JP 2004017877 W JP2004017877 W JP 2004017877W WO 2005059975 A1 WO2005059975 A1 WO 2005059975A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- silicon carbide
- heater
- heater unit
- silicon
- ceramic heater
- Prior art date
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 36
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 112
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 81
- 239000000463 material Substances 0.000 claims abstract description 33
- 238000005245 sintering Methods 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 45
- 229910052799 carbon Inorganic materials 0.000 description 44
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 40
- 239000011368 organic material Substances 0.000 description 25
- 239000012535 impurity Substances 0.000 description 23
- 229910052710 silicon Inorganic materials 0.000 description 22
- 238000010438 heat treatment Methods 0.000 description 21
- 239000010703 silicon Substances 0.000 description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- 239000000843 powder Substances 0.000 description 17
- 239000002245 particle Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 10
- 238000002156 mixing Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- 239000011261 inert gas Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000005011 phenolic resin Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007731 hot pressing Methods 0.000 description 6
- 238000005304 joining Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 238000010304 firing Methods 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000000280 densification Methods 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 239000007849 furan resin Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- -1 sulfuric acid Chemical class 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 2
- 229930006000 Sucrose Natural products 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 229920003987 resole Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000005720 sucrose Substances 0.000 description 2
- 235000000346 sugar Nutrition 0.000 description 2
- 150000008163 sugars Chemical class 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 239000011269 tar Substances 0.000 description 2
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- ZZHNUBIHHLQNHX-UHFFFAOYSA-N butoxysilane Chemical compound CCCCO[SiH3] ZZHNUBIHHLQNHX-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011294 coal tar pitch Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000002772 monosaccharides Chemical class 0.000 description 1
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluenecarboxylic acid Natural products CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920006287 phenoxy resin Polymers 0.000 description 1
- 239000013034 phenoxy resin Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- ZMYXZXUHYAGGKG-UHFFFAOYSA-N propoxysilane Chemical compound CCCO[SiH3] ZMYXZXUHYAGGKG-UHFFFAOYSA-N 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920006029 tetra-polymer Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
- C04B37/003—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts
- C04B37/005—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts consisting of glass or ceramic material
-
- 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
- H01L21/34—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 not provided for in groups H01L21/0405, H01L21/0445, H01L21/06, H01L21/16 and H01L21/18 with or without impurities, e.g. doping materials
- H01L21/46—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/428
- H01L21/477—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67103—Apparatus for thermal treatment mainly by conduction
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
- H05B3/143—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds applied to semiconductors, e.g. wafers heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
- B32B2315/02—Ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
- C04B2237/04—Ceramic interlayers
- C04B2237/08—Non-oxidic interlayers
- C04B2237/083—Carbide interlayers, e.g. silicon carbide interlayers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
- C04B2237/36—Non-oxidic
- C04B2237/365—Silicon carbide
Definitions
- the present invention relates to a ceramic heater unit.
- a conventional ceramic heater unit 120 used for various heat treatments of a semiconductor wafer includes a silicon carbide heater 101 and a heater 101 that is energized to raise the temperature. And an electrode 102 made of metal such as nickel.
- the heater 101 and the electrode 102 are joined together by a nut 109 as shown in FIG. 5A, and the integrated heater 101 and electrode 102 are stored and held by a structural material 103 (for example, see Patent Document See 1.) o
- the nut 109 that joins the heater 101 and the electrode 102 is made of a material other than silicon carbide, such as nickel or molybdenum. Therefore, there is a concern that during the heat treatment of the semiconductor wafer, as shown in FIG. 5 (a), the constituent components of the nut become impurities and deposit on the surface of the semiconductor wafer, thereby lowering the purity. Also, since the thermal characteristics of the members constituting the ceramic heater unit 120 are different, there has been a concern that the uniformity may be reduced.
- the entire heater unit was covered with a structure 103 and the inside of the structure 103 was sealed with a 0-ring 108 or the like.
- this has led to an increase in the manufacturing cost of the ceramic heater unit 120 and limitations in design.
- the task of improving the heat uniformity has not been improved.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-25751
- the present invention relates to the following items.
- a ceramic heater unit including at least a heater and an electrode for energizing the heater to raise the temperature of the heater, wherein the heater and the electrode each include silicon carbide.
- the ceramic heater unit according to the above (1) further comprising a susceptor made of a material containing silicon carbide disposed on the work facing surface of the heater.
- the above-mentioned heater and the above-mentioned electrode are integrally formed by a reaction sintering method using a bonding material having a material strength including silicon carbide, and a joint portion of the two is integrally formed.
- the ceramic heater unit according to any one of the above.
- FIG. 1A is a sectional view of a ceramic heater unit according to a first embodiment.
- FIG. 1B is a perspective view of the ceramic heater unit according to the first embodiment.
- FIG. 2 (a) is a sectional view of a ceramic heater unit according to a second embodiment.
- FIG. 2 (b) shows a perspective view (b) of the ceramic heater unit of the second embodiment.
- FIG. 3 (a)-(c) shows a manufacturing process diagram of the first embodiment.
- FIG. 4 (a) shows a cross-sectional view of a conventional heater unit.
- FIG. 4 (b) is a perspective view of a conventional heater unit.
- FIGS. 5 (a) and 5 (b) are partially enlarged sectional views of a conventional heater unit.
- the ceramic heater unit 20 of the first embodiment And an electrode 2 for energizing the heater 1 to raise the temperature of the heater 1.
- the heater 1 is joined to the electrode 2 at substantially the center of the other surface (lower surface) of the work facing surface.
- the heater 1 is disposed on the upper surface of the structural material 3a, and the electrode 2 penetrates through the through-hole force provided on the structural material 3a in the other direction (downward) of the work facing direction and is connected to a power supply (not shown) Have been.
- the heater 1 includes a structural member 3b which is arranged around the electrode 2 at the outer periphery of a substantially central through hole on the lower surface of the structural member 3a to form a hollow cylindrical portion, and a base 11 provided at the lower end of the structural member 3b.
- the structural material 3 also has a quartz force.
- the heater 1 and the electrode 2 have a material strength including silicon carbide, and are integrally formed of a bonding material made of a material including silicon carbide. With such a configuration, when impurities are released during heating, the above-described problem is solved and the purity is improved. Further, since the thermal characteristics of the heater 1 and the bonding material are equal, the temperature difference between the bonding portion of the heater 1 main body and the electrode 2 is eliminated, and the uniformity of heat is improved. Furthermore, the fear of cracking caused by the difference in the thermal characteristics of each heater member is eliminated.
- the heater 1 and the electrode 2 constituting the ceramic heater unit 20 are manufactured from silicon carbide according to a hot press method described later. At this time, heater 1 and electrode 2 can be joined (Fig. 3 (a)), and a play is formed at joint 10 when joining (Fig. 3 (b)). A communication hole is provided, and a protrusion is formed at one end of the electrode 2.
- a slurry containing silicon carbide (SiC) and carbon (C) is poured into the joint 10 between the heater 1 and the electrode 2. Thereafter, the joint is heated. Subsequently, high-purity silicon (Si) is inserted into the joint, and excess C and Si react to form SiC. By such a reaction sintering method, the heater 1 and the electrode 2 are formed as shown in FIG. 3 (c).
- the ceramic heater unit 20 shown in FIG. 1 (a) is manufactured.
- the above-mentioned silicon carbide of the heater and the electrode was manufactured by a hot press method.
- the above-described heater and electrode may be manufactured by another manufacturing method, for example, a reaction sintering method or an improved method thereof.
- the ceramic heater unit 21 of the second embodiment includes a susceptor 4 on which a workpiece can be placed, and another surface (lower surface) of the susceptor 4 on the workpiece facing surface (upper surface).
- a reflector 5 is provided below the heater 1 with the insulating plate 6 interposed therebetween, and the electrode 2 extends downward through a through hole provided substantially at the center of the insulating plate 6 and the reflector 5 so that a power supply (see FIG. (Not shown).
- the lid formed by the susceptor 4, the heater 1, the insulating plate 6, and the reflecting plate 5 are arranged, and a through hole is provided substantially at the center so that the electrode 2 can pass therethrough.
- a first hollow cylindrical portion 8 having a bottom portion 3a and a wall portion 3d provided on the periphery of the bottom portion 3a to form a hollow cylindrical portion.
- the first hollow cylindrical portion 8 is provided around the through hole of the bottom portion 3a so as to surround the electrode 2 penetrating from the bottom portion 3a, and the base 3 is provided at an end portion.
- the heater 1, the electrode 2, the susceptor 4, and the reflector 5 are made of a material containing silicon carbide, and the heater 1 and the electrode 2 are made of a material containing silicon carbide. It is formed integrally with the joining material.
- the provision of the susceptor 4 further improves the heat uniformity. This is because the thermal conductivity is high. Also, the provision of the reflection plate 5 improves the thermal efficiency and improves the uniform temperature. By adjusting the thermal conductivity of the lower surface to be higher than that of the upper surface of the reflecting plate 5, the heat uniformity is effectively improved.
- the insulating plate 6 is also made of a material such as quartz.
- the heater 1, the electrode 2, the susceptor 4 and the reflection plate 5, which constitute the second embodiment, are manufactured by the hot press method in the same manner as the first embodiment. Also, the heater 1 and the electrode 2 may be manufactured by the reaction sintering method as in the first embodiment. Here, the second embodiment The description of the manufacturing method will be omitted.
- a method for producing silicon carbide used for producing a heater unit will be described.
- a sintered silicon carbide having a free carbon content of 2 to 10% by weight is used. preferable.
- Such a silicon carbide sintered body is obtained by firing a mixture of silicon carbide powder and a nonmetallic sintering aid.
- the silicon carbide powder will be described.
- the silicon carbide powder ⁇ - type,
- the thickness is preferably about 0.01 to 10 m, and more preferably 0.05 to 2 ⁇ m. If the particle size is less than 0.01 ⁇ m, it becomes difficult to handle in processing steps such as weighing and mixing, while if it exceeds 10 / zm, the specific surface area of the powder, that is, the contact area with the adjacent powder Is small, and it is difficult to increase the density.
- High-purity silicon carbide powder is obtained, for example, by mixing a silicon compound (hereinafter sometimes referred to as a “silicon source”), an organic material that generates carbon by heating, and a Z polymerization catalyst or a cross-linking catalyst. Alternatively, it can be manufactured by firing the obtained solid in a non-oxidizing atmosphere.
- a silicon compound hereinafter sometimes referred to as a “silicon source”
- the silicon source liquid and solid compounds can be widely used, but at least one liquid compound is used. Examples of the liquid silicon source include alkoxysilane (mono-, di-, tri-, tetra-) polymers and the like.
- a tetraalkoxysilane polymer is preferably used. Specifically, methoxy silane, ethoxy silane, propyloxy silane, butoxy silane and the like are mentioned. Ethoxy silane is preferred from the viewpoint of force handling.
- the degree of polymerization of the tetraalkoxysilane polymer is about 2-15, it becomes a liquid low molecular weight polymer (oligomer).
- oligomer liquid low molecular weight polymer
- solid silicon sources that can be used in combination with liquid silicon sources include silicon carbide.
- the silicon carbide referred to herein includes, in addition to mono-oxide silicon (SiO) and di-oxide silicon (SiO 2), silica sol (including colloidal ultrafine silica). Liquids containing OH groups or alkoxy groups in the colloid molecules), fine silica, quartz powder and the like.
- silica sol including colloidal ultrafine silica. Liquids containing OH groups or alkoxy groups in the colloid molecules), fine silica, quartz powder and the like.
- silica sol including colloidal ultrafine silica. Liquids containing OH groups or alkoxy groups in the colloid molecules
- fine silica quartz powder and the like.
- silicon sources an oligomer of tetraalkoxysilane or a mixture of an oligomer of tetraalkoxysilane and finely divided silica, which has good homogeneity and good binding property, is preferred.
- the initial impurity content is more preferably 20 ppm or
- a liquid material and a solid material can be used in addition to a liquid material.
- An organic material having a high residual carbon ratio and capable of being polymerized or crosslinked by a catalyst or heating is preferred.
- monomers such as phenol resin, furan resin, polyimide, polyurethane, and polybutyl alcohol, and prepolymers are preferred.
- liquid substances such as cellulose, sucrose, pitch, and tar are also used.
- a resole type phenol resin is preferred in terms of thermal decomposability and purity.
- the purity of the organic material may be appropriately controlled depending on the purpose.
- the blending ratio of the silicon source and the organic material can be roughly determined in a preferable range by using the molar ratio of carbon and silicon (hereinafter abbreviated as "CZSi") as a guide.
- CZSi is CZSi obtained from elemental analysis of a silicon carbide intermediate obtained by carbonizing a mixture of a silicon source and an organic material at 1000 ° C., and analyzing the result. Carbon reacts with silicon oxide and changes to silicon carbide as represented by the following reaction formula.
- CZSi is determined according to the particle size of the target powder particles, and a silicon source and an organic material may be blended to achieve the ratio. . For example, when baking a mixture of a silicon source and an organic material at about 1 atmosphere and 1600 ° C or more, if C / Si is blended in the range of 2.0-2.5, free carbon is generated. Can be suppressed. Under the same conditions, if CZSi is blended to exceed 2.5, the generation of free carbon becomes remarkable, and silicon carbide powder with small particles can be obtained.
- the mixing ratio is appropriately determined according to the purpose.
- the total amount of carbon contained in the silicon carbide powder is preferably about 30% by weight or more and about 40% by weight or less.
- the total carbon content of silicon carbide (SiC) is theoretically about 30% by weight, but it is less than 30% by weight if it contains non-carbon impurities and 30% by weight if it contains free carbon. More.
- the silicon carbide powder obtained by adding and baking an organic material contains carbon-based impurities, so that the carbon content is greater than 30% by weight. Therefore, if the carbon content in the silicon carbide powder is less than 30% by weight, the proportion of non-carbon impurities becomes high, which is not preferable in terms of purity.
- the content exceeds 40% by weight the density of the obtained silicon carbide sintered body decreases, which is not preferable in terms of strength, oxidation resistance and the like.
- the mixture of the silicon source and the organic material can be cured to a solid.
- the curing method include a method using a crosslinking reaction by heating, a method using a curing catalyst, and a method using an electron beam or radiation.
- the curing catalyst to be used can be appropriately selected according to the organic material to be used, but when phenol resin or furan resin is used as the organic material, carboxylic acids such as toluenesulfonic acid, toluenecarboxylic acid, acetic acid, and oxalic acid, and hydrochloric acid are used. And inorganic acids such as sulfuric acid, and amines such as hexamine.
- the solid containing the silicon source and organic material is heated and carbonized as needed.
- Carbonization is performed by heating at 800 ° C. to 1000 ° C. for 30 to 120 minutes in a non-oxidizing atmosphere such as nitrogen or argon. Furthermore, when heated at 1350 ° C-2000 ° C in a non-oxidizing atmosphere, silicon carbide is formed.
- the firing temperature and the firing time may be determined as appropriate because they affect the particle size of the obtained silicon carbide powder, but firing at 1600 to 1900 ° C is efficient and preferable.
- the method of obtaining the high-purity silicon carbide powder described above is described in more detail in Japanese Patent Application Laid-Open No. 9-48605.
- the silicon carbide sintered body used in the present invention has 2 to 10% by weight of free carbon.
- This free carbon is derived from the organic material used for the nonmetallic sintering aid, and the amount of added carbon, such as the amount of the nonmetallic sintering aid, is added. By adjusting the conditions, the amount of free carbon can be set in the above-mentioned range.
- a material containing an organic material that can serve as a free carbon source that is, contains an organic material that generates carbon by heating (hereinafter, sometimes referred to as “carbon source”) is used.
- carbon source an organic material that generates carbon by heating
- the above-mentioned organic material may be used alone, or a material obtained by coating the above-mentioned organic material on the surface of silicon carbide powder (particle diameter: about 0.01 to 11 microns) may be used as a sintering aid. From the viewpoint, it is preferable to use the organic material alone.
- Examples of the organic material that generates carbon by heating include coal tar pitch, pitch tar, phenol resin, furan resin, epoxy resin, phenoxy resin, and various sugars having a high residual carbonization rate.
- monosaccharides such as darcos, small sugars such as sucrose, and polysaccharides such as cellulose and starch are exemplified.
- the organic material is liquid at room temperature, soluble in a solvent, or softened by heating such as thermoplasticity or heat-melting property.
- the use of a phenol resin improves the strength of the silicon carbide sintered body, and therefore, a resole type phenol resin is more preferable.
- organic materials form inorganic carbon-based compounds such as carbon black and graphite in the system. It is considered that this inorganic carbon-based compound is effectively acting as a sintering aid. However, the same effect cannot be obtained by using carbon black or the like as a sintering aid.
- the nonmetallic sintering aid may be dissolved in an organic solvent, if desired, and the resulting solution may be mixed with silicon carbide powder.
- the organic solvent used depends on the nonmetallic sintering aid.For example, when phenolic resin is used as the sintering aid, lower alcohols such as ethyl alcohol, ethyl ether, acetone, etc. may be selected. it can.
- phenolic resin when phenolic resin is used as the sintering aid, lower alcohols such as ethyl alcohol, ethyl ether, acetone, etc. may be selected. it can.
- the amount of the nonmetallic sintering additive added to the silicon carbide powder is determined so that the amount of free carbon in the silicon carbide sintered body is 2 to 10% by weight. If the free carbon is outside this range, the chemical change to SiC progressing during the bonding process and the bonding between the silicon carbide sintered bodies will be insufficient.
- the content (% by weight) of free carbon was determined by heating a sintered silicon carbide body at 800 ° C for 8 minutes in an oxygen atmosphere, and measuring the amount of generated CO and CO with a carbon analyzer. , Its measured force can be calculated.
- the amount of the sintering aid to be added depends on the type of sintering aid used and the amount of surface silica (silicon oxide) of the silicon carbide powder.
- the amount of silica (silicon oxide) on the surface of the silicon carbide powder is determined in advance using aqueous hydrogen fluoride, and a stoichiometry (sufficient) to reduce the silicon oxide is used. (Stoichiometry calculated by the formula (I)).
- the amount of addition can be determined so that free carbon is in the above-mentioned suitable range.
- the description of the nonmetallic sintering aid for the silicon carbide sintered body described above is described in more detail in the specification of Japanese Patent Application No. 9-041048.
- the silicon carbide powder and the nonmetallic sintering aid are homogeneously mixed.
- a solution obtained by dissolving a sintering aid in an organic solvent as described above may be used.
- the mixing method include a known method, for example, a method using a mixer, a planetary ball mill, or the like. It is preferable to use a synthetic resin material for mixing to prevent mixing of metallic element impurities. Mixing is performed for about 10 to 30 hours, particularly about 16 to 24 hours, and it is preferable to mix well. After thorough mixing, the solvent is removed and the mixture is evaporated to dryness. Thereafter, the mixture is sieved to obtain a raw material powder of the mixture. A granulator such as a spray dryer may be used for drying.
- the raw material powder thus obtained is placed in a molding die.
- the molding die to be used is made of graphite since metal impurities do not mix into the silicon carbide sintered body.
- the contact part is made of graphite or the contact part is made of tritetrafluoroethylene sheet (trademark) so that the raw material powder does not come into direct contact with the metal part of the mold. (Teflon sheet) can be suitably used.
- a high-purity graphite material for the mold and the heat insulating material in the furnace it is preferable to use a high-purity graphite material for the mold and the heat insulating material in the furnace. Specifically, a graphite material or the like is used, which is sufficiently baked in advance at a temperature of 2500 ° C. or more and does not generate impurities even when used at a high temperature.
- the raw material powder placed in the molding die is subjected to hot pressing.
- the pressure in the hot pressing can be carried out by the pressure of a wide range of 300- 700kgfZcm 2. ⁇ However, in the case of pressing at 400 kgfZcm 2 or more, it is necessary to use hot press parts, such as dies and punches, having excellent pressure resistance.
- Hot pressing is performed at a temperature of 2000 ° C to 2400 ° C. It is preferable that the heating up to the hot pressing temperature is performed gently and stepwise. When the temperature is increased in this manner, chemical changes, state changes, and the like that occur at each temperature can be sufficiently advanced, and as a result, the incorporation of impurities, the generation of cracks and voids can be prevented.
- an example of the heating step is shown below. First, a molding die containing 5 to 10 g of raw material powder is placed in a furnace, and the furnace is evacuated to 10 to 4 torr. Gently raise the temperature from room temperature to 200 ° C and keep at 200 ° C for about 30 minutes.
- the temperature is raised to 700 ° C in 6-10 hours and maintained at 700 ° C for 2-5 hours.
- the holding time at the constant temperature differs depending on the size of the silicon carbide sintered body, and may be set to a suitable time as appropriate.
- the determination as to whether or not the force has a sufficient holding time can be made at a point in time when the decrease in the degree of vacuum is reduced to some extent.
- the temperature is raised to 700 ° C-1500 ° C in 6-9 hours, and kept at 1500 ° C for about 15 hours.
- Equation (1) the reaction of reducing silicon oxide and converting it to silicon carbide proceeds (Equation (1)). If the holding time is insufficient, silicon dioxide remains and adheres to the surface of the silicon carbide powder, which hinders densification of the particles and causes growth of large particles, which is not preferable.
- the determination of whether the holding time is sufficient or not is based on whether the generation of the by-product carbon monoxide has stopped, that is, the reduction in the degree of vacuum has stopped and the reduction reaction start temperature is 1300.
- the temperature can be recovered to a degree of vacuum of ° C, and it can be used as a guide.
- Hot pressing is preferably performed after the furnace is heated to about 1500 ° C at which sintering starts, and then filled with an inert gas in order to make the furnace a non-oxidizing atmosphere.
- an inert gas a nitrogen gas or an argon gas is preferably used. It is preferable to use an argon gas which is non-reactive even at a high temperature.
- a high-purity silicon carbide sintered body is manufactured, a high-purity inert gas is used.
- the maximum temperature is less than 2000 ° C, the densification will be insufficient.
- the maximum temperature exceeds 2400 ° C, the powder or the raw material of the compact may be sublimated (decomposed). Not good. It is preferable to raise the temperature to around 1500 ° C to the maximum temperature in 2 to 4 hours, and to keep the temperature at the maximum temperature for 13 hours. At 1850-1900 ° C, sintering proceeds rapidly and is completed during the maximum temperature holding time.
- the pressing condition is less than 300 kgfZcm 2 , the densification becomes insufficient, and if it exceeds 700 kgfZcm 2 , the graphite mold may be damaged, which is not preferable in terms of production efficiency. In order to suppress the pressure grows abnormal grain, 300 kgf / cm 2 -! 700kgf / cm is preferable pressurize at about 2 /,.
- the carbonization Kei sintered body used, Te is densified, a density of 2. 9gZcm 3 above, porosity is preferably tool density is not more than 1% 3. OgZcm 3 or more, a porosity of It is particularly preferred that the content be 0.8% or less.
- the use of the densified silicon carbide sintered body improves the mechanical properties such as bending strength and breaking strength of the obtained silicon carbide joined body, and the electrical properties. Use of a silicon carbide sintered body having a high density is also preferable in terms of contamination since the constituent particles are reduced in size.
- the heat resistance, oxidation resistance, chemical resistance, and mechanical strength of the silicon carbide bonded body are inferior, and the bonding strength is insufficient. It may be.
- a method of increasing the density of the silicon carbide sintered body there is a method of performing a forming step before the sintering step.
- This forming step is performed at a lower temperature and lower pressure than the sintering step.
- a bulky powder can be made compact (small capacity) in advance, and by repeating this step many times, a large-sized compact can be easily manufactured.
- An example of various conditions of the forming step performed before the sintering step is shown below.
- the raw material powder obtained by homogeneously mixing the silicon carbide powder and the nonmetallic sintering aid is placed in a molding die, and the temperature is 80 ° C—300 ° C, preferably 120 ° C—
- the molded body is obtained by pressing at 140 ° C. and a pressure of 50 kgfZcm 2 to 100 kgfZcm 2 for 5 to 60 minutes, preferably 20 to 40 minutes.
- the heating temperature may be appropriately determined according to the characteristics of the nonmetallic sintering aid. Density of the resulting adult form, as in the case of using a powder having an average particle size of about 1 m becomes 1. 8gZcm 2 or more, the case of using a powder having an average particle size of 0. 5 m is 1.
- the density of the compact to be used is in this range, because the density of the silicon carbide sintered body can be easily increased.
- the molded product may be cut so that the obtained molded product is compatible with the molding die used in the sintering process.
- Impurity elements in the silicon carbide sintered body used in the present invention in the periodic table of elements in the revised version of the IUPAC Inorganic Chemical Chemistry Nomenclature in 1989, the atomic number of 3 or more except for C, N, 0, and Si
- the total content of the element is 5 ppm or less, because it can be used in processes requiring high cleanliness, for example, semiconductor manufacturing processes.
- the content of impurities by chemical analysis has only a meaning as a reference value when actually used.
- the evaluation of the contamination property of the silicon carbide conjugate may differ depending on the force in which the impurity is uniformly distributed and whether the impurity is locally unevenly distributed.
- the raw materials used for example, silicon carbide powder and a nonmetallic sintering aid
- the content of the impurity elements contained in the inert gas are reduced.
- a method of removing impurities by adjusting the sintering conditions such as lppm or less, sintering time and temperature, and the like can be given.
- impurity element used herein is the same as described above, and is the atomic number 3 or more (excluding C, N, 0, Si) in the periodic table of the revised edition of the IUPAC Inorganic Chemical Nomenclature 1989. )).
- carbide Kei sintered body used in the present invention other physical properties, intensity the 550 800KgfZmm 2 bending at room temperature, Young's modulus 3. 5 X 10 4 - 4. 5 X 10 4, Vickers hardness the 550 80 . OkgfZmm 2, Poisson's ratio 0.5 14-0 21, thermal expansion coefficient 3. 8 X 10- 6 - 4. 2 X 10- V. C, thermal conductivity of 150WZm'K or more, specific heat of 0.15-0.18 calZg '° C, thermal shock resistance of 500-700 AT ° C, and specific resistance of 1 ⁇ 'cm It is preferable because various properties of the body are improved.
- the silicon carbide sintered body of the present invention the silicon carbide sintered body described in Japanese Patent Application No. 9 04 1048 by the present inventors can be suitably used.
- the surface to be bonded of the silicon carbide sintered body has a smooth adhesive force, and more specifically, the surface roughness Ra of the surface to be bonded is 0.5 m or less. Is more preferably 0.02 m or less.
- the surface roughness of the silicon carbide sintered body can be adjusted to the above-mentioned range by performing grinding or puffing with a 200 to 800 mesh talc.
- silicon metal used as a bonding material will be described.
- Silicon used in the present invention It is preferable to use a metal having a purity of 98% or more, more preferably a purity of 99% or more, and particularly preferably a purity of 99.9%.
- a silicon metal having a low purity When a silicon metal having a low purity is used, a covalent compound due to an impurity element is generated in the silicon carbide bonded body, and the fire resistance is reduced.
- a semiconductor process such as a wafer jig, it is preferable to use one having a purity of 99.999% or more.
- the silicon metal used is a powder, the powder is preferably 100 mesh or more. If the size of the silicon metal is less than 100 mesh, the surfaces to be joined tend to shift, and dimensional accuracy cannot be obtained. There is no particular upper limit, but what can be actually obtained is less than 350 mesh.
- the amount of silicon metal used for bonding affects the bonding strength and the like of the resulting silicon carbide bonded body.
- silicon metal is used in an amount calculated according to the following equation (1), the bonding strength of the obtained silicon carbide joined body is improved and the silicon metal remains It was found that the bonding strength did not decrease and no contamination occurred.
- the surface area indicates the surface area of the bonded surface as viewed from the projected surface, for example, when two sintered bodies having the same surface are bonded, viewed from the projected surface of one of the silicon carbide sintered bodies. In the case of joining three or more silicon carbide sintered bodies, the total surface area of all the joining surfaces of the silicon carbide sintered bodies as viewed on the projection surface is indicated, and the area of 1Z2 is shown.
- k 0.08-0.12, which is an experimentally determined coefficient whose dimension is g / cm 2
- Silicon metal is sandwiched between the surfaces of two or more silicon carbide sintered bodies to be joined.
- silicon metal powder is sprayed on the surface of one of the silicon carbide sintered bodies, and then the surface to which the other silicon carbide sintered body is joined is superimposed on the surface on which the silicon metal is sprayed,
- the silicon carbide sintered body may be arranged close to a predetermined space so as to obtain a predetermined space (arranged such that the joining surfaces face each other), and the space may be filled with metal silicon powder. At this time, it is not necessary to apply special pressure.
- silicon carbide sintered bodies when bonding is performed in a state where the silicon carbide sintered bodies are stacked, it is sufficient that the surfaces do not shift even if only the own weight of the silicon carbide sintered bodies is applied. It may be fixed with a fixture or pressurized so that the surface does not shift.
- Silicon metal to silicon carbide As a method of spraying on the surface of the sintered body, for example, there is a method in which the surface of the silicon carbide sintered body is covered with silicon metal using a funnel or the like.
- the silicon carbide sintered body holding the silicon metal is subjected to a high-temperature heat treatment.
- the heat treatment is preferably performed in a vacuum, which is preferably performed in a non-acidic atmosphere, or in an inert gas atmosphere other than nitrogen gas.
- an inert gas to be used argon gas and helium gas are preferable.
- nitrogen gas is used as an inert gas, it reacts with silicon metal at a high temperature to generate silicon nitride, and the bonding surface may peel or break due to a difference in thermal expansion.
- argon gas and helium gas are non-reactive even at high temperatures, and thus are preferable because such problems do not occur.
- a high-purity silicon carbide bonded body it is preferable to use a high-purity inert gas.
- the heating temperature is preferably 1450 ° C. to 2200 ° C. as long as it is equal to or higher than the melting point of silicon metal. At temperatures below 1450 ° C, the silicon metal does not melt, and at 2200 ° C some silicon metal sublimates.
- the upper limit is preferably 2000 ° C, and when ⁇ type is used, the upper limit is 1800 ° C. In particular, joining at about 1600 ° C. is preferable because a joined body having high strength can be efficiently produced. It is also preferable that the temperature be raised gently because the reaction between the silicon metal and the free carbon in the silicon carbide sintered body sufficiently proceeds. Specifically, it is preferable to raise the temperature by 5 ° CZ minutes and 15 ° CZ minutes, and it is particularly preferable to perform the heating at about 10 ° CZ minutes.
- the purity and the soaking property are improved.
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Abstract
Description
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EP04820513A EP1691398B1 (en) | 2003-12-01 | 2004-12-01 | Ceramic heater unit |
KR1020067013167A KR101165477B1 (ko) | 2003-12-01 | 2004-12-01 | 세라믹 히터 유닛 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1784050A2 (en) * | 2005-11-08 | 2007-05-09 | Shin-Etsu Chemical Company, Ltd. | Ceramic heater and method for producing ceramic heater |
EP1799014A2 (en) * | 2005-12-08 | 2007-06-20 | Shin-Etsu Chemical Company, Ltd. | Ceramic heater, method for producing ceramic heater, and heater power-supply component |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4833008B2 (ja) * | 2006-09-13 | 2011-12-07 | 株式会社ブリヂストン | 炭化ケイ素焼結体ヒータ及びその製造方法 |
JP2009051684A (ja) * | 2007-08-24 | 2009-03-12 | Bridgestone Corp | 炭化ケイ素構造体及び炭化ケイ素構造体の製造方法 |
JP4913695B2 (ja) | 2007-09-20 | 2012-04-11 | 東京エレクトロン株式会社 | 基板処理装置及びそれに用いる基板載置台 |
JP5317462B2 (ja) * | 2007-11-16 | 2013-10-16 | 助川電気工業株式会社 | 均熱高速昇降炉 |
US8637794B2 (en) | 2009-10-21 | 2014-01-28 | Lam Research Corporation | Heating plate with planar heating zones for semiconductor processing |
WO2011058830A1 (ja) * | 2009-11-13 | 2011-05-19 | 住友電気工業株式会社 | 半導体基板の製造方法 |
US20110165030A1 (en) * | 2010-01-05 | 2011-07-07 | Aerojet-General Corporation, A Corporation Of The State Of Ohio | Internal resistive heating of catalyst bed for monopropellant catalyst |
US8791392B2 (en) | 2010-10-22 | 2014-07-29 | Lam Research Corporation | Methods of fault detection for multiplexed heater array |
US8546732B2 (en) * | 2010-11-10 | 2013-10-01 | Lam Research Corporation | Heating plate with planar heater zones for semiconductor processing |
JP6831269B2 (ja) * | 2017-02-28 | 2021-02-17 | 日本特殊陶業株式会社 | セラミックヒータ |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0653145A (ja) * | 1992-07-28 | 1994-02-25 | Ngk Insulators Ltd | 半導体ウェハー加熱装置 |
WO2003008359A1 (fr) * | 2001-07-19 | 2003-01-30 | Ibiden Co., Ltd. | Corps de connexion en ceramique, procede de connexion des corps en ceramique, et corps structurel en ceramique |
JP2003040678A (ja) * | 2001-07-30 | 2003-02-13 | Ngk Spark Plug Co Ltd | セラミックヒータ及びその製造方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5498855A (en) * | 1992-09-11 | 1996-03-12 | Philip Morris Incorporated | Electrically powered ceramic composite heater |
JP3165938B2 (ja) * | 1993-06-24 | 2001-05-14 | 東京エレクトロン株式会社 | ガス処理装置 |
WO2001031978A1 (fr) * | 1999-10-22 | 2001-05-03 | Ibiden Co., Ltd. | Plaque chauffante en ceramique |
JP4430769B2 (ja) * | 1999-12-09 | 2010-03-10 | 信越化学工業株式会社 | セラミックス加熱治具 |
JP3746935B2 (ja) * | 2000-04-05 | 2006-02-22 | 住友大阪セメント株式会社 | サセプタ及びその製造方法 |
JP3710690B2 (ja) * | 2000-07-04 | 2005-10-26 | 住友大阪セメント株式会社 | SiCヒータ |
JP3582518B2 (ja) * | 2001-04-18 | 2004-10-27 | 住友電気工業株式会社 | 抵抗発熱体回路パターンとそれを用いた基板処理装置 |
US20020185487A1 (en) * | 2001-05-02 | 2002-12-12 | Ramesh Divakar | Ceramic heater with heater element and method for use thereof |
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2003
- 2003-12-01 JP JP2003401966A patent/JP4602662B2/ja not_active Expired - Fee Related
-
2004
- 2004-12-01 KR KR1020067013167A patent/KR101165477B1/ko active IP Right Grant
- 2004-12-01 WO PCT/JP2004/017877 patent/WO2005059975A1/ja active Application Filing
- 2004-12-01 US US10/578,224 patent/US20070138161A1/en not_active Abandoned
- 2004-12-01 EP EP04820513A patent/EP1691398B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0653145A (ja) * | 1992-07-28 | 1994-02-25 | Ngk Insulators Ltd | 半導体ウェハー加熱装置 |
WO2003008359A1 (fr) * | 2001-07-19 | 2003-01-30 | Ibiden Co., Ltd. | Corps de connexion en ceramique, procede de connexion des corps en ceramique, et corps structurel en ceramique |
JP2003040678A (ja) * | 2001-07-30 | 2003-02-13 | Ngk Spark Plug Co Ltd | セラミックヒータ及びその製造方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1784050A2 (en) * | 2005-11-08 | 2007-05-09 | Shin-Etsu Chemical Company, Ltd. | Ceramic heater and method for producing ceramic heater |
EP1784050A3 (en) * | 2005-11-08 | 2008-09-24 | Shin-Etsu Chemical Company, Ltd. | Ceramic heater and method for producing ceramic heater |
EP1799014A2 (en) * | 2005-12-08 | 2007-06-20 | Shin-Etsu Chemical Company, Ltd. | Ceramic heater, method for producing ceramic heater, and heater power-supply component |
EP1799014A3 (en) * | 2005-12-08 | 2008-12-10 | Shin-Etsu Chemical Company, Ltd. | Ceramic heater, method for producing ceramic heater, and heater power-supply component |
Also Published As
Publication number | Publication date |
---|---|
EP1691398B1 (en) | 2012-10-31 |
EP1691398A1 (en) | 2006-08-16 |
JP2005166830A (ja) | 2005-06-23 |
KR20060109975A (ko) | 2006-10-23 |
JP4602662B2 (ja) | 2010-12-22 |
KR101165477B1 (ko) | 2012-07-13 |
US20070138161A1 (en) | 2007-06-21 |
EP1691398A4 (en) | 2009-01-21 |
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