JPH0217108B2 - - Google Patents
Info
- Publication number
- JPH0217108B2 JPH0217108B2 JP58245314A JP24531483A JPH0217108B2 JP H0217108 B2 JPH0217108 B2 JP H0217108B2 JP 58245314 A JP58245314 A JP 58245314A JP 24531483 A JP24531483 A JP 24531483A JP H0217108 B2 JPH0217108 B2 JP H0217108B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- atoms
- region
- layer region
- silicon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 125000004429 atom Chemical group 0.000 claims description 98
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 81
- 238000009826 distribution Methods 0.000 claims description 76
- 125000004432 carbon atom Chemical group C* 0.000 claims description 65
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical group [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 65
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 50
- 125000005843 halogen group Chemical group 0.000 claims description 49
- 239000000126 substance Substances 0.000 claims description 44
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 35
- 229910052732 germanium Inorganic materials 0.000 claims description 23
- 230000000737 periodic effect Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 149
- 239000002994 raw material Substances 0.000 description 66
- 238000000034 method Methods 0.000 description 53
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 36
- 229910052710 silicon Inorganic materials 0.000 description 32
- 239000000470 constituent Substances 0.000 description 31
- 239000007858 starting material Substances 0.000 description 29
- 238000004544 sputter deposition Methods 0.000 description 22
- 229910052757 nitrogen Inorganic materials 0.000 description 20
- -1 germanium aluminum Chemical compound 0.000 description 19
- 239000010703 silicon Substances 0.000 description 19
- 238000000151 deposition Methods 0.000 description 17
- 230000008021 deposition Effects 0.000 description 17
- 229910052736 halogen Inorganic materials 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 15
- 150000002367 halogens Chemical class 0.000 description 14
- 229910021417 amorphous silicon Inorganic materials 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 13
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- 238000003384 imaging method Methods 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- 238000002156 mixing Methods 0.000 description 10
- 239000012535 impurity Substances 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 8
- 206010034972 Photosensitivity reaction Diseases 0.000 description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 230000036211 photosensitivity Effects 0.000 description 8
- 235000012431 wafers Nutrition 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 7
- 239000011737 fluorine Substances 0.000 description 7
- 229910052731 fluorine Inorganic materials 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 229910052990 silicon hydride Inorganic materials 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 229910007264 Si2H6 Inorganic materials 0.000 description 5
- 229910017817 a-Ge Inorganic materials 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 229910052734 helium Inorganic materials 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 150000003377 silicon compounds Chemical class 0.000 description 5
- 210000002784 stomach Anatomy 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000001771 vacuum deposition Methods 0.000 description 5
- 229910052720 vanadium Inorganic materials 0.000 description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 4
- 229910052794 bromium Inorganic materials 0.000 description 4
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000000499 gel Substances 0.000 description 4
- 150000002366 halogen compounds Chemical class 0.000 description 4
- JUINSXZKUKVTMD-UHFFFAOYSA-N hydrogen azide Chemical compound N=[N+]=[N-] JUINSXZKUKVTMD-UHFFFAOYSA-N 0.000 description 4
- 229910052740 iodine Inorganic materials 0.000 description 4
- 229910017464 nitrogen compound Inorganic materials 0.000 description 4
- 150000002830 nitrogen compounds Chemical class 0.000 description 4
- 150000004756 silanes Chemical class 0.000 description 4
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 3
- 229910005096 Si3H8 Inorganic materials 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 150000001721 carbon Chemical group 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- VGRFVJMYCCLWPQ-UHFFFAOYSA-N germanium Chemical compound [Ge].[Ge] VGRFVJMYCCLWPQ-UHFFFAOYSA-N 0.000 description 3
- 229910052986 germanium hydride Inorganic materials 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000011630 iodine Substances 0.000 description 3
- 238000007733 ion plating Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910001120 nichrome Inorganic materials 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910014263 BrF3 Inorganic materials 0.000 description 2
- 229910020323 ClF3 Inorganic materials 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 229910007260 Si2F6 Inorganic materials 0.000 description 2
- 229910003811 SiGeC Inorganic materials 0.000 description 2
- 229910003818 SiH2Cl2 Inorganic materials 0.000 description 2
- 229910003816 SiH2F2 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
- 229910017875 a-SiN Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- MJBPUQUGJNAPAZ-AWEZNQCLSA-N butin Chemical compound C1([C@@H]2CC(=O)C3=CC=C(C=C3O2)O)=CC=C(O)C(O)=C1 MJBPUQUGJNAPAZ-AWEZNQCLSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- KBDJQNUZLNUGDS-UHFFFAOYSA-N dibromosilicon Chemical compound Br[Si]Br KBDJQNUZLNUGDS-UHFFFAOYSA-N 0.000 description 2
- MGNHOGAVECORPT-UHFFFAOYSA-N difluorosilicon Chemical compound F[Si]F MGNHOGAVECORPT-UHFFFAOYSA-N 0.000 description 2
- RNRZLEZABHZRSX-UHFFFAOYSA-N diiodosilicon Chemical compound I[Si]I RNRZLEZABHZRSX-UHFFFAOYSA-N 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- LZDSILRDTDCIQT-UHFFFAOYSA-N dinitrogen trioxide Chemical compound [O-][N+](=O)N=O LZDSILRDTDCIQT-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- OMRRUNXAWXNVFW-UHFFFAOYSA-N fluoridochlorine Chemical compound ClF OMRRUNXAWXNVFW-UHFFFAOYSA-N 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- QUZPNFFHZPRKJD-UHFFFAOYSA-N germane Chemical compound [GeH4] QUZPNFFHZPRKJD-UHFFFAOYSA-N 0.000 description 2
- AHVNUGPIPKMDBB-UHFFFAOYSA-N germanium Chemical compound [Ge].[Ge].[Ge] AHVNUGPIPKMDBB-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- PSCMQHVBLHHWTO-UHFFFAOYSA-K indium(iii) chloride Chemical compound Cl[In](Cl)Cl PSCMQHVBLHHWTO-UHFFFAOYSA-K 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- QKCGXXHCELUCKW-UHFFFAOYSA-N n-[4-[4-(dinaphthalen-2-ylamino)phenyl]phenyl]-n-naphthalen-2-ylnaphthalen-2-amine Chemical compound C1=CC=CC2=CC(N(C=3C=CC(=CC=3)C=3C=CC(=CC=3)N(C=3C=C4C=CC=CC4=CC=3)C=3C=C4C=CC=CC4=CC=3)C3=CC4=CC=CC=C4C=C3)=CC=C21 QKCGXXHCELUCKW-UHFFFAOYSA-N 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 125000004437 phosphorous atom Chemical group 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000013441 quality evaluation Methods 0.000 description 2
- 229930195734 saturated hydrocarbon Natural products 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- SDNBGJALFMSQER-UHFFFAOYSA-N trifluoro(trifluorosilyl)silane Chemical compound F[Si](F)(F)[Si](F)(F)F SDNBGJALFMSQER-UHFFFAOYSA-N 0.000 description 2
- FQFKTKUFHWNTBN-UHFFFAOYSA-N trifluoro-$l^{3}-bromane Chemical compound FBr(F)F FQFKTKUFHWNTBN-UHFFFAOYSA-N 0.000 description 2
- JOHWNGGYGAVMGU-UHFFFAOYSA-N trifluorochlorine Chemical compound FCl(F)F JOHWNGGYGAVMGU-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 239000000052 vinegar Substances 0.000 description 2
- 235000021419 vinegar Nutrition 0.000 description 2
- MWRNXFLKMVJUFL-UHFFFAOYSA-N $l^{2}-germane Chemical compound [GeH2] MWRNXFLKMVJUFL-UHFFFAOYSA-N 0.000 description 1
- 229910017011 AsBr3 Inorganic materials 0.000 description 1
- 229910017009 AsCl3 Inorganic materials 0.000 description 1
- 229910017050 AsF3 Inorganic materials 0.000 description 1
- 229910015845 BBr3 Inorganic materials 0.000 description 1
- 229910015844 BCl3 Inorganic materials 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- 229910014264 BrF Inorganic materials 0.000 description 1
- MJBPUQUGJNAPAZ-UHFFFAOYSA-N Butine Natural products O1C2=CC(O)=CC=C2C(=O)CC1C1=CC=C(O)C(O)=C1 MJBPUQUGJNAPAZ-UHFFFAOYSA-N 0.000 description 1
- 229910020313 ClF Inorganic materials 0.000 description 1
- 241000257465 Echinoidea Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910006111 GeCl2 Inorganic materials 0.000 description 1
- 229910006162 GeI2 Inorganic materials 0.000 description 1
- 229910021600 Germanium(II) bromide Inorganic materials 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910020667 PBr3 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 206010034960 Photophobia Diseases 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229910003822 SiHCl3 Inorganic materials 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- 241001504592 Trachurus trachurus Species 0.000 description 1
- 206010047571 Visual impairment Diseases 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- HDYRYUINDGQKMC-UHFFFAOYSA-M acetyloxyaluminum;dihydrate Chemical compound O.O.CC(=O)O[Al] HDYRYUINDGQKMC-UHFFFAOYSA-M 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229940009827 aluminum acetate Drugs 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910000074 antimony hydride Inorganic materials 0.000 description 1
- FAPDDOBMIUGHIN-UHFFFAOYSA-K antimony trichloride Chemical compound Cl[Sb](Cl)Cl FAPDDOBMIUGHIN-UHFFFAOYSA-K 0.000 description 1
- GUNJVIDCYZYFGV-UHFFFAOYSA-K antimony trifluoride Chemical compound F[Sb](F)F GUNJVIDCYZYFGV-UHFFFAOYSA-K 0.000 description 1
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910000070 arsenic hydride Inorganic materials 0.000 description 1
- JMBNQWNFNACVCB-UHFFFAOYSA-N arsenic tribromide Chemical compound Br[As](Br)Br JMBNQWNFNACVCB-UHFFFAOYSA-N 0.000 description 1
- OEYOHULQRFXULB-UHFFFAOYSA-N arsenic trichloride Chemical compound Cl[As](Cl)Cl OEYOHULQRFXULB-UHFFFAOYSA-N 0.000 description 1
- JCMGUODNZMETBM-UHFFFAOYSA-N arsenic trifluoride Chemical compound F[As](F)F JCMGUODNZMETBM-UHFFFAOYSA-N 0.000 description 1
- UAZDIGCOBKKMPU-UHFFFAOYSA-O azanium;azide Chemical compound [NH4+].[N-]=[N+]=[N-] UAZDIGCOBKKMPU-UHFFFAOYSA-O 0.000 description 1
- 150000001540 azides Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- JHXKRIRFYBPWGE-UHFFFAOYSA-K bismuth chloride Chemical compound Cl[Bi](Cl)Cl JHXKRIRFYBPWGE-UHFFFAOYSA-K 0.000 description 1
- 229910000072 bismuth hydride Inorganic materials 0.000 description 1
- BPBOBPIKWGUSQG-UHFFFAOYSA-N bismuthane Chemical compound [BiH3] BPBOBPIKWGUSQG-UHFFFAOYSA-N 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- ILAHWRKJUDSMFH-UHFFFAOYSA-N boron tribromide Substances BrB(Br)Br ILAHWRKJUDSMFH-UHFFFAOYSA-N 0.000 description 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- DUVPPTXIBVUIKL-UHFFFAOYSA-N dibromogermanium Chemical compound Br[Ge]Br DUVPPTXIBVUIKL-UHFFFAOYSA-N 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical compound [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 150000002290 germanium Chemical class 0.000 description 1
- QHGIKMVOLGCZIP-UHFFFAOYSA-N germanium dichloride Chemical compound Cl[Ge]Cl QHGIKMVOLGCZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 208000013469 light sensitivity Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 150000003017 phosphorus Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- IPNPIHIZVLFAFP-UHFFFAOYSA-N phosphorus tribromide Chemical compound BrP(Br)Br IPNPIHIZVLFAFP-UHFFFAOYSA-N 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- MWWATHDPGQKSAR-UHFFFAOYSA-N propyne Chemical group CC#C MWWATHDPGQKSAR-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009329 sexual behaviour Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- OUULRIDHGPHMNQ-UHFFFAOYSA-N stibane Chemical compound [SbH3] OUULRIDHGPHMNQ-UHFFFAOYSA-N 0.000 description 1
- FAQYAMRNWDIXMY-UHFFFAOYSA-N trichloroborane Chemical compound ClB(Cl)Cl FAQYAMRNWDIXMY-UHFFFAOYSA-N 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/08—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Light Receiving Elements (AREA)
- Photoreceptors In Electrophotography (AREA)
Description
æ¬çºæã¯ãå
ïŒããã§ã¯åºçŸ©ã®å
ã§ã玫å€å
ç·ãå¯èŠå ç·ãèµ€å€å ç·ãç·ãγç·çã瀺ãïŒ
ã®æ§ãªé»ç£æ³¢ã«æåæ§ã®ããé»ååççšå å°é»éš
æïŒä»¥äžãåã«å å°é»éšæãšããïŒã«é¢ããã åºäœæ®åè£ çœ®ãæãã¯å圢æåéã«ãããé»å
åççšå圢æéšæãåçš¿èªåè£ çœ®ã«ãããå å°é»
å±€ã圢æããå å°é»ææãšããŠã¯ãé«æ床ã§ã
SNæ¯ïŒå é»æµïŒIpïŒïŒæé»æµïŒIdïŒããé«ããç §
å°ããé»ç£æ³¢ã®ã¹ãã¯ãã«ç¹æ§ã«ãããã³ã°ãã
åžåã¹ãã¯ãã«ç¹æ§ãæããããšãå å¿çæ§ãé
ããææã®ææµæå€ãæããããšã䜿çšæã«ãã
ãŠäººäœã«å¯ŸããŠç¡å ¬å®³ã§ããããšãæŽã«ã¯åºäœæ®
åè£ çœ®ã«ãããŠã¯ãæ®åãæå®æéå ã«å®¹æã«åŠ
çããããšãã§ããããšçã®ç¹æ§ãèŠæ±ãããã
æ®ã«ãäºåæ©ãšããŠãªãã€ã¹ã§äœ¿çšãããé»åå
çè£ çœ®å ã«çµèŸŒãŸããé»ååççšå圢æéšæã®å Ž
åã«ã¯ãäžèšã®äœ¿çšæã«ãããç¡å ¬å®³æ§ã¯éèŠãª
ç¹ã§ããã ãã®æ§ãªç¹ã«ç«èããŠæè¿æ³šç®ãããŠããå å°
é»æã«ã¢ã¢ã«ãã¢ã¹ã·ãªã³ã³ïŒä»¥åŸïœâSiãšè¡šèš
ãïŒããããäŸãã°ãç¬åœå ¬é第2746967å·å ¬å ±ã
å第2855718å·å ¬å ±ã«ã¯é»ååççšå圢æéšæãš
ããŠãç¬åœå ¬é第2933411å·å ¬å ±ã«ã¯å é»å€æèª
åè£ çœ®ãžã®å¿çšãèšèŒãããŠããã èä¹ããåŸæ¥ã®ïœâSiã§æ§æãããå å°é»å±€ã
æããå å°é»éšæã¯ãææµæå€ãå æ床ãå å¿ç
æ§çã®é»æ°çãå åŠçãå å°é»çç¹æ§ãåã³è湿
æ§çã®äœ¿çšç°å¢ç¹æ§ã®ç¹ãæŽã«ã¯çµæçå®å®æ§ã®
ç¹ã«ãããŠãç·åçãªç¹æ§åäžãå³ãå¿ èŠããã
ãšããæŽã«æ¹è¯ãããå¯ãç¹ãåããã®ãå®æ ã§
ããã äŸãã°ãé»ååççšå圢æéšæã«é©çšããå Žå
ã«ãé«å æ床åãé«ææµæåãåæã«å³ãããšã
ããšãåŸæ¥ã«ãããŠã¯ããã®äœ¿çšæã«ãããŠæ®ç
é»äœãæ®ãå Žåã床ã 芳枬ããããã®çš®ã®å å°é»
éšæã¯é·æéç¹°è¿ã䜿çšãç¶ãããšãç¹°è¿ã䜿çš
ã«ããç²åŽã®èç©ãèµ·ã€ãŠãæ®åãçããæè¬ãŽ
ãŒã¹ãçŸè±¡ãçºããæ§ã«ãªãæãã¯ãé«éã§ç¹°è¿
ã䜿çšãããšå¿çæ§ã次第ã«äœäžããçã®äžéœå
ãªç¹ãçããå Žåãå°ãªããªãã€ãã æŽã«ã¯ãïœâSiã¯å¯èŠå é åã®çæ³¢é·åŽã«èŒã¹
ãŠãé·æ³¢é·åŽã®æ³¢é·é åãããé·ãæ³¢é·é åã®åž
åä¿æ°ãæ¯èŒçå°ãããçŸåšå®çšåãããŠããå
å°äœã¬ãŒã¶ãšã®ãããã³ã°ã«æŒããŠãé垞䜿çšã
ããŠããããã²ã³ã©ã³ãããå ç¯ãå æºãšããå Ž
åãé·æ³¢é·åŽã®å ãæå¹ã«äœ¿çšãåŸãŠããªããšã
ãç¹ã«æŒããŠã倫ã æ¹è¯ãããäœå°ãæ®ã€ãŠã
ãã åãå¥ã«ã¯ãç §å°ãããå ãå å°é»å±€äžã«æŒã
ãŠãå ååžåãããã«ãæ¯æäœã«å°éããå ã®é
ãå€ããªããšãæ¯æäœèªäœãå å°é»å±€ãééããŠ
æ¥ãå ã«å¯Ÿããåå°çãé«ãå Žåã«ã¯ãå å°é»å±€
å ã«æŒããŠå€éåå°ã«ããå¹²æžãèµ·ã€ãŠãç»åã®
ããã±ããçããäžèŠå ãšãªãã ãã®åœ±é¿ã¯ã解å床ãäžããçºã«ãç §å°ã¹ãã
ããå°ããããçšå€§ãããªããæ®ã«åå°äœã¬ãŒã¶
ãå æºãšããå Žåã«ã¯å€§ããªåé¡ãšãªã€ãŠããã æŽã«ãïœâSiææã§å å°é»å±€ãæ§æããå Žåã«
ã¯ããã®é»æ°çãå å°é»çç¹æ§ã®æ¹è¯ãå³ããã
ã«ãæ°ŽçŽ ååæãã¯åŒçŽ ååãå¡©çŽ ååçã®ãã
ã²ã³ååãåã³é»æ°äŒå°åã®å¶åŸ¡ã®ããã« çŽ å
åãçååçãæãã¯ãã®ä»ã®ç¹æ§æ¹è¯ã®ããã«
ä»ã®ååããåã æ§æååãšããŠå å°é»å±€äžã«å«
æãããããããçã®æ§æååã®å«æã®ä»æ¹åŠäœ
ã«ãã€ãŠã¯ã圢æããå±€ã®é»æ°çæãã¯å å°é»ç
ç¹æ§ã«åé¡ãçããå Žåãããã å³ã¡ãäŸãã°ã圢æããå å°é»å±€äžã«å ç §å°ã«
ãã€ãŠçºçããããªããã€ãªã¢ã®è©²å±€äžã§ã®å¯¿åœ
ãå åã§ãªãããšãæãã¯æéšã«ãããŠãæ¯æäœ
åŽããã®é»è·ã®æ³šå ¥ã®é»æ¢ãå åã§ãªãããšçã
çããå Žåãå°ãªããªãã æŽã«ã¯ãå±€åãåæ°ÎŒä»¥äžã«ãªããšå±€åœ¢æçšã®
ç空å ç©å®€ããåãåºããåŸã空æ°äžã§ã®æŸçœ®æ
éã®çµéãšå ±ã«ãæ¯æäœè¡šé¢ããã®å±€ã®æµ®ããå¥
é¢ãæãã¯å±€ã«äºè£ãçããçã®çŸè±¡ãåŒèµ·ãå
ã¡ã§ãã€ãããã®çŸè±¡ã¯ãæ®ã«æ¯æäœãéåžžãé»
ååçåéã«æŒããŠäœ¿çšãããŠãããã©ã ç¶æ¯æ
äœã®å Žåã«å€ãèµ·ããçãçµæçå®å®æ§ã®ç¹ã«æŒ
ããŠè§£æ±ºãããå¯ãç¹ãããã åŸã€ãŠïœâSiææãã®ãã®ã®ç¹æ§æ¹è¯ãå³ãã
ãäžæ¹ã§å å°é»éšæãèšèšããéã«ãäžèšããæ§
ãªåé¡ã®ç·ãŠã解決ãããæ§ã«å·¥å€«ãããå¿ èŠã
ããã æ¬çºæã¯äžèšã®è«žç¹ã«éã¿æããããã®ã§ãïœ
âSiã«å°±ãŠé»ååççšå圢æéšæãåºäœæ®åè£
眮ãèªåè£ çœ®çã«äœ¿çšãããå å°é»éšæãšããŠã®
é©çšæ§ãšãã®å¿çšæ§ãšãã芳ç¹ããç·æ¬çã«éæ
ç 究æ€èšãç¶ããçµæãã·ãªã³ã³ååãšã²ã«ãã
ãŠã ååãšãæ¯äœãšããæ°ŽçŽ åååã¯ããã²ã³å
åã®ããããäžæ¹ãå°ãªããšãå«æããã¢ã¢ã«ã
ã¢ã¹ææãæè¬æ°ŽçŽ åã¢ã¢ã«ãã¢ã¹ã·ãªã³ã³ã²ã«
ãããŠã ãããã²ã³åã¢ã¢ã«ãã¢ã¹ã·ãªã³ã³ã²ã«
ãããŠã ãæãã¯ããã²ã³å«ææ°ŽçŽ åã¢ã¢ã«ãã¢
ã¹ã·ãªã³ã³ã²ã«ãããŠã ã以åŸããçã®ç·ç§°çè¡š
èšãšããŠãïœâSiGeïŒïŒšãïŒãã䜿çšãããã
ãæ§æãããå å°é»æ§ã瀺ãå å容éãæããå
å°é»éšæã®æ§æã以åŸã«èª¬æãããæ§ãªç¹å®åã®
äžã«èšèšãããŠäœæãããå å°é»éšæã¯å®çšäžè
ããåªããç¹æ§ã瀺ãã°ããã§ãªããåŸæ¥ã®å å°
é»éšæãšèŒã¹ãŠã¿ãŠãããããç¹ã«ãããŠåé§ã
ãŠããããšãæ®ã«é»ååççšã®å å°é»éšæãšããŠ
èããåªããç¹æ§ãæããŠããããšåã³é·æ³¢é·åŽ
ã«æŒããåžåã¹ãã¯ãã«ç¹æ§ã«åªããŠããããšã
èŠåºããç¹ã«æ¬çºæã¯åºã¥ããŠããã æ¬çºæã¯é»æ°çãå åŠçãå å°é»çç¹æ§ãåžžæ
å®å®ããŠããŠãæ®ãã©äœ¿çšç°å¢ã«å¶éãåããªã
å šç°å¢åã§ãããé·æ³¢é·åŽã®å æ床ç¹æ§ã«åªãã
ãšå ±ã«èå ç²åŽã«èããé·ããç¹°è¿ã䜿çšã«éã
ãŠãå£åçŸè±¡ãèµ·ãããæ®çé»äœãå šãåã¯æ®ã
ã©èŠ³æž¬ãããªãå å°é»éšæãæäŸããããšãäž»ã
ãç®çãšããã æ¬çºæã®ä»ã®ç®çã¯å šå¯èŠå åã«æŒããŠå æ床
ãé«ããæ®ã«åå°äœã¬ãŒã¶ãšã®ãããã³ã°ã«åª
ããäžã€å å¿çã®éãå å°é»éšæãæäŸããããš
ã§ããã æ¬çºæã®ããã«ä»ã®ç®çã¯ãæ¯æäœäžã«èšãã
ããå±€ãšæ¯æäœãšã®éãç©å±€ãããå±€ã®åå±€éã«
æŒããå¯çæ§ã«åªããæ§é é åçã«ã¡å¯ã§å®å®ç
ã§ãããå±€å質ã®é«ãå å°é»éšæãæäŸããããš
ã§ããã æ¬çºæã®ããã«ä»ã®ç®çã¯ãé»ååççšã®å圢
æéšæãšããŠé©çšãããå Žåãéåžžã®é»ååçæ³
ã極ããŠæå¹ã«é©çšããåŸãçšåºŠã«ãéé»å圢æ
ã®çºã®åž¯é»åŠçã®éã®é»è·ä¿æèœãå åãããäž
ã€å€æ¹¿é°å²æ°äžã§ããã®ç¹æ§ã®äœäžãæ®ãã©èŠ³æž¬
ãããªãåªããé»ååçç¹æ§ãæããå å°é»éšæ
ãæäŸããããšã§ããã æ¬çºæã®ããã«ä»ã®ç®çã¯ãæ¿åºŠãé«ããããŒ
ãããŒã³ãé®®æã«åºãŠäžã€è§£å床ã®é«ããé«å質
ç»åãåŸãäºã容æã«åºæ¥ãé»ååççšã®å å°é»
éšæãæäŸããããšã§ããã æ¬çºæã®ããã«ä»ã®ç®çã¯ãé«å æ床æ§ãé«
SNæ¯ç¹æ§åã³æ¯æäœãšã®éã«è¯å¥œãªé»æ°çæ¥è§Š
æ§ãæããå å°é»éšæãæäŸããããšã§ããã æ¬çºæã¯é»ååççšå å°é»éšæçšã®æ¯æäœãšã 該æ¯æäœäžã«èšããããã·ãªã³ã³ååãšãã·ãª
ã³ã³ååãšã®åã«å¯ŸããŠïŒã10Ã105ååppmã®
ã²ã«ãããŠã ååãšãå«ãéæ¶è³ªææã§æ§æãã
ãå±€å30â«ã50ÎŒã®ç¬¬äžã®å±€é åïŒïŒ§ïŒããã³è©²
第äžã®å±€é åïŒïŒ§ïŒäžã«èšããããã·ãªã³ã³åå
ãå«ãïŒã²ã«ãããŠã ååãå«ãŸãªãïŒéæ¶è³ªæ
æã§æ§æãããå±€å0.5ã90ÎŒã®ç¬¬äºã®å±€é å
ïŒïŒ³ïŒãæããå±€åïŒã100ÎŒã®å å°é»æ§ã瀺ã第
äžã®å±€ããªãã³ã«è©²ç¬¬äžã®å±€äžã«èšããããã·ãª
ã³ã³ååãšïŒÃ10-3ã60ååïŒ ã®çªçŽ ååãšãå«
ãéæ¶è³ªææã§æ§æãããå±€å0.003ã30ÎŒã®ç¬¬äº
ã®å±€ãããªãå å容éãšãã§æ§æãããé»ååç
çšå å°é»éšæã§ãã€ãŠã åèšç¬¬äžã®å±€ã«ã¯ãã·ãªã³ã³ååãšã²ã«ãããŠ
ã ååãšççŽ ååãšã®åã«å¯ŸããŠ0.001ã50åå
ïŒ ã®ççŽ ååãå«æãããåœè©²ççŽ ååã®å±€åæ¹
åã«ãããæ¿åºŠååžã¯æ»ããã§ããã€è©²ç¬¬äžã®å±€
ã®æ¯æäœåŽãŸãã¯åèšç¬¬äºã®å±€ãšã®çé¢åŽããå±€
åã§5Ό以å ã«500ååppm以äžã®æ倧æ¿åºŠååžã
ããããšãç¹åŸŽãšããã äžèšããæ§ãªå±€æ§æãåãæ§ã«ããŠèšèšããã
æ¬çºæã®å å°é»éšæã¯ãåèšããè«žåé¡ã®ç·ãŠã
解決ãåŸã極ããŠåªããé»æ°çãå åŠçãå å°é»
çç¹æ§ãé»æ°çèå§æ§åã³äœ¿çšç°å¢ç¹æ§ã瀺ãã æ®ã«ãæ¬çºæã®å å°é»éšæã¯ãé»ååççšå圢
æéšæãšããŠé©çšãããå Žåã«ã¯ãç»å圢æãžã®
æ®çé»äœã®åœ±é¿ãå šããªãããã®é»æ°çç¹æ§ãå®
å®ããŠããé«æ床ã§é«SNæ¯ãæãããã®ã§ãã€
ãŠãèå ç²åŽãç¹°è¿ã䜿çšç¹æ§ã«é·ããæ¿åºŠãé«
ãããŒãããŒã³ãé®®æã«åºãŠãäžã€è§£å床ã®é«
ããé«å質ã®ç»åãå®å®ããŠç¹°è¿ãåŸãããšãã§
ããã åãæ¬çºæã®å å°é»éšæã¯ãæ¯æäœäžã«åœ¢æã
ããå å容局ãå±€èªäœåŒ·éã§ãã€ãŠãäžã€æ¯æäœ
ãšã®å¯çæ§ã«èããåªããŠãããé«éã§é·æéé£
ç¶çã«ç¹°è¿ã䜿çšããããšãã§ããã æŽã«ãæ¬çºæã®å å°é»éšæã¯ãå šå¯èŠå åã«æŒ
ããŠå æ床ãé«ããæ®ã«åå°äœã¬ãŒã¶ãšã®ããã
ã³ã°ã«åªããäžã€å å¿çãéãã 以äžãå³é¢ã«åŸã€ãŠãæ¬çºæã®å å°é»éšæã«å°±
ãŠè©³çŽ°ã«èª¬æããã 第ïŒå³ã¯ãæ¬çºæã®ç¬¬ïŒã®å®æœæ æ§äŸã®å å°é»
éšæã®å±€æ§æã説æããããã®æš¡åŒçæ§æå³ã§ã
ãã 第ïŒå³ã«ç€ºãå å°é»éšæïŒïŒïŒã¯ãå å°é»éšæ
çšãšããŠã®æ¯æäœïŒïŒïŒãšã該æ¯æäœïŒïŒïŒäžã«
èšãããã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒãšã第äžã®å±€
ïŒïŒ©ïŒïŒïŒïŒäžã«èšãããã第äºã®å±€ïŒïŒïŒïŒ
ïŒãšãæããã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒãšç¬¬äºã®å±€
ïŒïŒïŒïŒïŒãšã«ãã€ãŠå å容局ïŒïŒïŒãæ§æã
ãã 第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã¯ãã²ã«ãããŠã åå
ãšãå¿ èŠã«å¿ããŠãã·ãªã³ã³ååãæ°ŽçŽ ååãã
ãã²ã³ååã®äžã®å°ãªããšãïŒã€ãšãå«ãéæ¶è³ª
ææïŒä»¥åŸãïœâGeïŒSiããïŒããšèšãïŒã§
æ§æãããæ¯æäœäžã«èšãããã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒãšãã·ãªã³ã³ååãšãå¿ èŠã«å¿ããŠã
æ°ŽçŽ ååããã³ããã²ã³ååã®å°ãªããšãïŒã€ã
å«ãéæ¶è³ªææïŒä»¥åŸãïœâSiïŒïŒšãïŒããšèš
ãïŒã§æ§æããã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã«èš
ãããããå å°é»æ§ã瀺ã第äºã®å±€é åïŒïŒ³ïŒïŒ
ïŒïŒãšãæããã ã²ã«ãããŠã ååã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒ
ïŒäžã«äžéç¡ãåäžã«ååžããæ§ã«ç¬¬äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããŠãè¯ãããæãã¯å±€
åæ¹åã«ã¯äžéãªãå«æãããŠã¯ãããååžæ¿åºŠ
ã¯äžåäžã§ãã€ãŠãè¯ããèä¹ãããããã®å Žå
ã«ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«ãããŠã¯ãæ¯
æäœã®è¡šé¢ãšå¹³è¡ãªé¢å æ¹åã«é¢ããŠãã²ã«ãã
ãŠã ååã¯ãåäžãªååžã§äžéç¡ãå«æãããã®
ããã®é¢å æ¹åã«æŒããç¹æ§ã®åäžåãèšãç¹ã
ãå¿ èŠã§ããã æ®ã«ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®å±€åæ¹åã«ã¯äž
éç¡ãå«æãããŠããŠãäžã€åèšæ¯æäœïŒïŒïŒã®
èšããããŠããåŽãšã¯å察ã®åŽïŒå å容局ïŒïŒïŒ
ã®èªç±è¡šé¢ïŒïŒïŒåŽïŒã®æ¹ã«å¯ŸããŠåèšæ¯æäœïŒ
ïŒïŒåŽïŒå å容局ãšæ¯æäœïŒïŒïŒãšã®çé¢åŽïŒã®
æ¹ã«å€ãååžããç¶æ ãšãªãæ§ã«ããããæãã¯
ãã®éã®ååžç¶æ ãšãªãæ§ã«åèšç¬¬äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒäžã«ã²ã«ãããŠã ååã¯å«æãããã æ¬çºæã®å å°é»éšæã«ãããŠã¯ãåèšããæ§ã«
第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããã²ã«ã
ããŠã ååã®ååžç¶æ ã¯ãå±€åæ¹åã«ãããŠã¯ã
åèšã®æ§ãªååžç¶æ ãåããæ¯æïŒïŒïŒã®è¡šé¢ãš
å¹³è¡ãªé¢å æ¹åã«ã¯ãåäžãªååžç¶æ ãšãããã®
ãæãŸããã æ¬çºæã«æŒããŠã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒ
äžã«èšãããã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒäžã«
ã¯ãã²ã«ãããŠã ååã¯å«æãããŠãããããã®
æ§ãªå±€æ§é ã«ç¬¬äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã圢æããã
ãšã«ãã€ãŠãå¯èŠå é åãå«ããæ¯èŒççé·æ³¢ã
ãæ¯èŒçé·æ³¢é·è¿ã®å šé åã®æ³¢é·ã®å ã«å¯ŸããŠå
æ床ãåªããŠããå å°é»éšæãåŸãããšãã§ã
ãã åã奜ãŸããå®æœæ æ§ã®ïŒã€ã«æŒããŠã¯ã第äž
ã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«æŒããã²ã«ãããŠã å
åã®ååžç¶æ ã¯ãã®å šå±€é åã«ã²ã«ãããŠã åå
ãé£ç¶çã«äžéç¡ãååžããã²ã«ãããŠã ååã®
å±€åæ¹åã®ååžæ¿åºŠïŒ£ãæ¯æäœïŒïŒïŒåŽãã第äº
ã®å±€é åïŒïŒ³ïŒïŒïŒïŒã«åã€ãŠæžå°ããå€åãäž
ããããŠããã®ã§ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒãš
第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒãšã®éã«æŒãã芪åæ§
ã«åªããäžã€åŸè¿°ããæ§ã«æ¯æäœïŒïŒïŒåŽç«¯éšã«
æŒããŠã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ã極端ã«å€§
ããããããšã«ãããåå°äœã¬ãŒã¶ãŒçã䜿çšã
ãå Žåã®ã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã§ã¯æ®ãã©
åžåãåããªãé·æ³¢é·åŽã®å ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«æŒããŠãå®è³ªçã«å®å šã«åžåãã
ããšãåºæ¥ãæ¯æäœïŒïŒïŒé¢ããã®åå°ã«ããå¹²
æžãé²æ¢ããããšãåºæ¥ãã 第ïŒå³ä¹è³ç¬¬ïŒïŒå³ã«ã¯ç¬¬äžã®å±€é åïŒïŒ§ïŒïŒ
ïŒïŒäžã«å«æãããã²ã«ãããŠã ååã®å±€åæ¹å
ã®ååžç¶æ ãäžåäžãªå Žåã®å žåçäŸã瀺ãã
ãã 第ïŒå³ä¹è³ç¬¬ïŒïŒå³ã«ãããŠã¯ã暪軞ã¯ã²ã«ã
ããŠã ååã®ååžæ¿åºŠïŒ£ãã瞊軞ã¯å å°é»æ§ã瀺
ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã®å±€åã瀺ããtBã¯
æ¯æäœïŒïŒïŒåŽã®ç¬¬äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã®è¡š
é¢ã®äœçœ®ããtTã¯æ¯æäœåŽãšã¯å察åŽã®ç¬¬äžã®å±€
é åïŒïŒ§ïŒïŒïŒïŒã®è¡šé¢ã®äœçœ®ã瀺ããå³ã¡ãã²
ã«ãããŠã ååã®å«æããã第äžã®å±€é åïŒïŒ§ïŒ
ïŒïŒïŒã¯tBããtTåŽã«åã€ãŠå±€åœ¢æããªãããã 第ïŒå³ã«ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«å«
æãããã²ã«ãããŠã ååã®å±€åæ¹åã®ååžç¶æ
ã®ç¬¬ïŒã®å žåäŸã瀺ãããã 第ïŒå³ã«ç€ºãããäŸã§ã¯ãã²ã«ãããŠã ååã®
å«æããã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã圢æãã
ãè¡šé¢ãšæ¯æäœïŒïŒïŒã®è¡šé¢ãšãæ¥ããçé¢äœçœ®
tBããt1ã®äœçœ®ãŸã§ã¯ãã²ã«ãããŠã ååã®ååž
æ¿åºŠïŒ£ãC1ãªãäžå®ã®å€ãåãä¹ã第äžã®å±€
ïŒïŒ©ïŒã«å«æãããäœçœ®t1ããçé¢äœçœ®tTã«è³ã
ãŸã§ååžæ¿åºŠã¯ãC2ããåŸã ã«é£ç¶çã«æžå°ã
ããŠãããçé¢äœçœ®tTã«ãããŠã¯ã²ã«ãããŠã å
åã®ååžæ¿åºŠïŒ£ã¯C3ãšãããã 第ïŒå³ã«ç€ºãããäŸã«ãããŠã¯ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«å«æãããã²ã«ãããŠã ååã®å
åžæ¿åºŠïŒ£ã¯äœçœ®tBããäœçœ®tTã«è³ããŸã§æ¿åºŠC4ã
ãåŸã ã«é£ç¶çã«æžå°ããŠäœçœ®tTã«ãããŠæ¿åºŠC5
ãšãªãæ§ãªååžç¶æ ã圢æããŠããã 第ïŒå³ã®å Žåã«ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒ
ã«å«æãããã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ã¯tB
ããäœçœ®t2ãŸã§ã¯æ¿åºŠC6ãšäžå®å€ãšãããäœçœ®t2
ãšäœçœ®tTãšã®éã«ãããŠãåŸã ã«é£ç¶çã«æžå°ã
ããäœçœ®tTã«ãããŠãååžæ¿åºŠïŒ£ã¯å®è³ªçã«é¶ãš
ãããŠããïŒããã§å®è³ªçã«é¶ãšã¯æ€åºéçéæª
æºã®å Žåã§ããïŒã 第ïŒå³ã®å Žåã«ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒ
ã«å«æãããã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ã¯äœ
眮tBããäœçœ®tTã«è³ããŸã§ãæ¿åºŠC8ããé£ç¶çã«
åŸã ã«æžå°ãããäœçœ®tTã«ãããŠå®è³ªçã«é¶ãšã
ããŠããã 第ïŒå³ã«ç€ºãäŸã«ãããŠã¯ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«å«æãããã²ã«ãããŠã ååã®å
åžæ¿åºŠïŒ£ã¯ãäœçœ®tBãšäœçœ®t3éã«ãããŠã¯ãæ¿åºŠ
C9ãšäžå®å€ã§ãããäœçœ®tTã«ãããŠã¯æ¿åºŠC10ã
ãããäœçœ®t3ãšäœçœ®tTãšã®éã§ã¯ãååžæ¿åºŠïŒ£ã¯
äžæ¬¡é¢æ°çã«äœçœ®t3ããäœçœ®tTã«è³ããŸã§æžå°ã
ããŠããã 第ïŒå³ã«ç€ºãããäŸã«ãããŠã¯ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«å«æãããã²ã«ãããŠã ååã®å
åžæ¿åºŠïŒ£ã¯äœçœ®tBããäœçœ®t4ãŸã§ã¯æ¿åºŠC11ã®äžå®
å€ãåããäœçœ®t4ããäœçœ®tTãŸã§ã¯æ¿åºŠC12ããæ¿
床C13ãŸã§äžæ¬¡é¢æ°çã«æžå°ããååžç¶æ ãšãã
ãŠããã 第ïŒå³ã«ç€ºãäŸã«ãããŠã¯ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«å«æãããã²ã«ãããŠã ååã®å
åžæ¿åºŠïŒ£ã¯äœçœ®tBããäœçœ®tTã«è³ããŸã§ãæ¿åºŠC14
ããå®è³ªçã«é¶ã«è³ãæ§ã«äžæ¬¡é¢æ°çã«æžå°ããŠ
ããã 第ïŒå³ã«ãããŠã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒ
ã«å«æãããã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ã¯ã
äœçœ®tBããäœçœ®t5ã«è³ããŸã§ã¯æ¿åºŠC15ããæ¿åºŠ
C16ãŸã§äžæ¬¡é¢æ°çã«æžå°ãããäœçœ®t5ãšäœçœ®tTãš
ã®éã«ãããŠã¯ãæ¿åºŠC16ã®äžå®å€ãšãããäŸã
瀺ãããŠããã 第ïŒïŒå³ã«ç€ºãããäŸã«ãããŠã¯ã第äžã®å±€é
åïŒïŒ§ïŒïŒïŒïŒã«å«æãããã²ã«ãããŠã ååã®
ååžæ¿åºŠïŒ£ã¯äœçœ®tBã«ãããŠæ¿åºŠC17ã§ãããäœ
眮t6ã«è³ããŸã§ã¯ãã®æ¿åºŠC17ããåãã¯ãã€ã
ããšæžå°ãããt6ã®äœçœ®ä»è¿ã«ãããŠã¯ãæ¥æ¿ã«
æžå°ãããŠäœçœ®t6ã§ã¯æ¿åºŠC18ãšãããã äœçœ®t6ãšäœçœ®t7ãšã®éã«ãããŠã¯ãåãæ¥æ¿ã«
æžå°ãããŠããã®åŸã¯ãç·©ãã«åŸã ã«æžå°ãããŠ
äœçœ®t7ã§æ¿åºŠC19ãšãªããäœçœ®t7ãšäœçœ®t8ãšã®éã§
ã¯ã極ããŠãã€ãããšåŸã ã«æžå°ãããŠäœçœ®t8ã«
ãããŠãæ¿åºŠC20ã«è³ããäœçœ®t8ãšäœçœ®tTã®éã«ã
ããŠã¯ãæ¿åºŠC20ããå®è³ªçã«é¶ã«ãªãæ§ã«å³ã«
瀺ãåŠã圢ç¶ã®æ²ç·ã«åŸã€ãŠæžå°ãããŠããã 以äžã第ïŒå³ä¹è³ç¬¬ïŒïŒå³ã«ããã第äžã®å±€é
åïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããã²ã«ãããŠã åå
ã®å±€åæ¹åã®ååžç¶æ ã®å žåäŸã®å¹Ÿã€ãã説æã
ãæ§ã«ãæ¬çºæã«ãããŠã¯ãæ¯æäœïŒïŒïŒåŽã«ã
ããŠãã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ã®é«ãéšå
ãæããçé¢tTåŽã«ãããŠãåèšååžæ¿åºŠïŒ£ãæ¯
æäœïŒïŒïŒåŽã«èŒã¹ãŠå¯æãäœããããéšåãæ
ããã²ã«ãããŠã ååã®ååžç¶æ ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«èšããããŠããå Žåãã奜é©ãªäŸ
ã®ïŒã€ãšããŠæããããã æ¬çºæã«æŒããå å°é»éšæãæ§æãã第äžã®å±€
é åïŒïŒ§ïŒïŒïŒïŒã¯ã奜ãŸããã¯äžèšããæ§ã«æ¯
æäœïŒïŒïŒåŽã®æ¹ãåã¯ãããšã¯éã«èªç±è¡šé¢ïŒ
ïŒïŒåŽã®æ¹ã«ã²ã«ãããŠã ååãæ¯èŒçé«æ¿åºŠã§
å«æãããŠããå±åšé åïŒïŒ¡ïŒãæããã®ãæãŸ
ããã äŸãã°ãå±åšé åïŒïŒ¡ïŒã¯ã第ïŒå³ä¹è³ç¬¬ïŒïŒ
å³ã«ç€ºãä¿¡å·ãçšããŠèª¬æããã°ãçé¢äœçœ®ïœã
ãå±€åæ¹åã«5Ό以å ã«èšããããã®ãæãŸããã äžèšå±åšé åïŒïŒ¡ïŒã¯ãçé¢äœçœ®ïœãã5ÎŒå
ãŸã§ã®å±€é åïŒïŒ¬ïŒã®å šéšãšãããå Žåããã
ããåãå±€é åïŒïŒ¬ïŒã®äžéšãšãããå Žåãã
ãã å±åšé åïŒïŒ¡ïŒãå±€é åïŒïŒ¬ïŒã®äžéšãšããã
åã¯å šéšãšãããã¯ã圢æããã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«èŠæ±ãããç¹æ§ã«åŸã€ãŠé©å®æ±ºã
ãããã å±åšé åïŒïŒ¡ïŒã¯ããã®äžã®å«æãããã²ã«ã
ããŠã ååã®å±€åæ¹åã®ååžç¶æ ãšããŠã²ã«ãã
ãŠã ååã®ååžæ¿åºŠã®æ倧å€Cnaxãã·ãªã³ã³åå
ãšã®åã«å¯ŸããŠã奜ãŸããã¯1000ååppm以äžã
ãã奜é©ã«ã¯5000ååppm以äžãæé©ã«ã¯ïŒÃ
104ååppm以äžãšãããæ§ãªååžç¶æ ãšãªãåŸ
ãæ§ã«å±€åœ¢æãããã®ãæãŸããã å³ã¡ãæ¬çºæã«ãããŠã¯ãã²ã«ãããŠã ååã®
å«æããã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã¯ãæ¯æäœ
ïŒïŒïŒåŽããã®å±€åã§5Ό以å ïŒtBãã5ÎŒåã®å±€é
åïŒã«ååžæ¿åºŠã®æ倧å€Cnaxãååšããæ§ã«åœ¢æ
ãããã®ã奜ãŸããã æ¬çºæã«ãããŠã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäž
ã«å«æãããã²ã«ãããŠã ååã®å«æéãšããŠ
ã¯ãæ¬çºæã®ç®çãå¹æçã«éæãããæ§ã«ææ
ã«åŸã€ãŠé©å®æ±ºããããããã·ãªã³ã³ååãšã®å
ã«å¯ŸããŠã奜ãŸããã¯ïŒã10Ã105ååppmãã
奜ãŸããã¯100ã9.5Ã105ååppmãæé©ã«ã¯ã
500ãïŒÃ105ååppmãšãããã®ãæãŸããã 第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«æŒããã²ã«ãã
ãŠã ååã®ååžç¶æ ããå šå±€é åã«ã²ã«ãããŠã
ååãé£ç¶çã«ååžããã²ã«ãããŠã ååã®å±€å
æ¹åã®ååžæ¿åºŠïŒ£ãæ¯æäœïŒïŒïŒåŽããå å容局
ïŒïŒïŒã®èªç±è¡šé¢ïŒïŒïŒåŽã«åã€ãŠãæžå°ããå€
åãäžããããŠããããåã¯ãã®éã®å€åãäžã
ãããŠããå Žåã«ã¯ãååžæ¿åºŠïŒ£ã®å€åçæ²ç·ã
ææã«åŸã€ãŠä»»æã«èšèšããããšã«ãã€ãŠãèŠæ±
ãããç¹æ§ãæã€ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã
ææéãã«å®çŸããããšãåºæ¥ãã äŸãã°ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«æŒãã
ã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ãæ¯æäœïŒïŒïŒåŽ
ã«æŒããŠã¯ãå åé«ããå å容局ïŒïŒïŒã®èªç±è¡š
é¢ïŒïŒïŒåŽã«æŒããŠã¯ã極åäœããæ§ãªãååžæ¿
床ã®å€åããã²ã«ãããŠã ååã®ååžæ¿åºŠæ²ç·
ã«äžããããšã«ãã€ãŠãå¯èŠå é åãå«ããæ¯èŒ
ççæ³¢é·ããæ¯èŒçé·æ³¢é·è¿ã®å šé åã®æ³¢é·ã®å
ã«å¯ŸããŠé«å æ床åãå³ãããšãåºæ¥ããšå ±ã«ã
ã¬ãŒã¶å çã®å¯å¹²æžå ã«å¯ŸããŠã®å¹²æžé²æ¢ãå¹æ
çã«èšãããšãåºæ¥ãã æ¬çºæã«æŒããŠç¬¬äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã®å±€
åãšç¬¬äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã®å±€åãšã¯ãæ¬çº
æã®ç®çãå¹æçã«éæãããçºã®éèŠãªå åã®
ïŒã€ã§ããã®ã§åœ¢æãããå å°é»éšæã«ææã®ç¹
æ§ãå åäžããããæ§ã«ãå å°é»éšæã®èšèšã®é
ã«å åãªã泚æãæãããå¿ èŠãããã æ¬çºæã«æŒããŠã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã®
å±€åTBã¯ã奜ãŸããã¯30â«ã50ÎŒããã奜ãŸãã
ã¯40â«ã40ÎŒãæé©ã«ã¯50â«ã30ÎŒãšãããã®ã
æãŸããã åã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã®å±€åã¯ã奜
ãŸããã¯ã0.5ã90ÎŒããã奜ãŸããã¯ïŒã80ÎŒã
æé©ã«ã¯ïŒã50ÎŒãšãããã®ãæãŸããã 第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã®å±€åTBãšç¬¬äºã®
å±€é åïŒïŒ³ïŒïŒïŒïŒã®å±€åã®åïŒTBïŒïŒŽïŒã¯ã
äž¡å±€é åã«èŠæ±ãããç¹æ§ãšå åå®¹å±€å šäœã«èŠæ±
ãããç¹æ§ãšã®çžäºéã®ææ©çé¢é£æ§ã«åºããŠã
å å°é»éšæã®å±€èšèšã®éã«ææã«åŸã€ãŠãé©å®æ±º
å®ãããã æ¬çºæã®å å°é»éšæã«æŒããŠã¯ãäžèšã®ïŒTB
ïŒïŒŽïŒã®æ°å€ç¯å²ã¯ã奜ãŸããã¯ïŒã100ÎŒãã
ã奜é©ã«ã¯ïŒã80ÎŒãæé©ã«ã¯ïŒã50ÎŒãšããã
ã®ãæãŸããã æ¬çºæã®ãã奜ãŸããå®æœæ æ§ã«æŒããŠã¯äžèš
ã®å±€åTBåã³å±€åã¯ã奜ãŸããã¯TBïŒïŒŽâŠïŒ
ãªãé¢ä¿ãæºè¶³ããããã«ã倫ã ã«å¯ŸããŠé©å®é©
åãªæ°å€ãéžæãããã®ãæãŸããã äžèšã®å Žåã«æŒããå±€åTBåã³å±€åã®æ°å€
ã®éžæã«æŒããŠããã奜ãŸããã¯ãTBïŒïŒŽâŠ0.9ã
æé©ã«ã¯TBïŒïŒŽâŠ0.8ãªãé¢ä¿ãæºè¶³ãããæ§ã«
å±€åTBåã³å±€åã®å€ã決å®ãããã®ãæãŸã
ããã®ã§ããã æ¬çºæã«æŒããŠã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäž
ã«å«æãããã²ã«ãããŠã ååã®å«æéãïŒÃ10
ååppm以äžã®å Žåã«ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒ
ïŒïŒã®å±€åTBã¯ãå¯æãèããããã®ãæãŸã
ãã奜ãŸããã¯30Ό以äžããã奜ãŸããã¯25Ό以
äžãæé©ã«ã¯20Ό以äžãšãããã®ãæãŸããã æ¬çºæã®å å°é»éšæã«æŒããŠã¯ãé«å æ床åãš
é«ææµæåãæŽã«ã¯ãæ¯æäœãšå å容éãšã®éã®
å¯çæ§ã®æ¹è¯ãå³ãç®çã®çºã«ã第äžã®å±€ïŒïŒ©ïŒ
ïŒïŒïŒäžã«ã¯ãççŽ ååãå«æãããå±€é åã
èšãããããççŽ ååã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒ
ã®å šå±€é åã«äžéãªãå«æãããŠãè¯ãããæã
ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®äžéšã®å±€é åã®ã¿ã«
å«æãããŠéåšãããŠãè¯ãã æ¬çºæã«æŒããŠãå±€é åã«æŒããççŽ ååã®
ååžç¶æ ã¯ååžæ¿åºŠïŒ£ïŒïŒ£ïŒããæ¯æäœïŒïŒïŒã®
è¡šé¢ãšå¹³è¡ãªé¢å æ¹åã«æŒããŠã¯åäžã§ãããã
å±€åæ¹åã«æŒããŠã¯äžåäžã§ããã 第ïŒïŒå³ã«ç€ºãããäŸã§ã¯ãççŽ ååã®ååžæ¿
床ïŒïŒ£ïŒã¯ãæ¯æäœåŽã®ç¬¬äžå±€ïŒïŒïŒã®è¡šé¢äœ
眮tBããt9ãŸã§ã®å±€é åã«æŒããŠã¯æ¿åºŠC21ãšã
ããäœçœ®t9ããäœçœ®t10ãŸã§ã®å±€é åã«æŒããŠã¯ã
äœçœ®t9ããäœçœ®t10ãŸã§æ¥æ¿ã«å¢å ããäœçœ®t10ã§
ååžæ¿åºŠã®ããŒã¯å€C22ã«ãªããäœçœ®t10ããäœçœ®
t11ãŸã§ã®å±€é åã«æŒããŠã¯ççŽ ååã®ååžæ¿åºŠ
ïŒïŒ£ïŒã¯äœçœ®t11ãžè¿ã¥ãã«ã€ããŠæ¥æ¿ã«æžå°
ããæ¯æäœïŒïŒïŒãšã¯å察åŽã®ç¬¬äžå±€ïŒïŒïŒã®è¡š
é¢äœçœ®tTã§æ¿åºŠC21ãšãªãã 第ïŒïŒå³ã®ç€ºãããäŸã§ã¯ãççŽ ååã®ååžæ¿
床ïŒïŒ£ïŒã¯ãäœçœ®tBããäœçœ®t12ãŸã§ã®å±€é åã§
ã¯æ¿åºŠC23ãšããäœçœ®t12ããäœçœ®t13ãŸã§ã®å±€é å
ã§ã¯äœçœ®t12ããäœçœ®t13ãŸã§æ¥æ¿ã«å¢å ããäœçœ®
t13ã§ååžæ¿åºŠã®ããŒã¯å€C24ããšãäœçœ®t13ããäœ
眮tTãŸã§ã®å±€é åã§ã¯äœçœ®tTãžè¿ã¥ãã«ã€ããŠã»
ãŒé¶ã«ãªããŸã§æžå°ããã 第ïŒïŒå³ã«ç€ºãããäŸã§ã¯ãççŽ ååã®ååžæ¿
床ïŒïŒ£ïŒã¯ãäœçœ®tBããäœçœ®t14ãŸã§ã®å±€é åã§
ã¯C25ããC26ãŸã§ããããã«å¢å ããäœçœ®t14ã§
ååžæ¿åºŠã®ããŒã¯å€C26ãšãªããäœçœ®t14ããäœçœ®
tTãŸã§ã®å±€é åã§ã¯äœçœ®tTãžè¿ã¥ãã«ã€ããŠæ¥æ¿
ã«æžå°ããäœçœ®tTã§ã¯æ¿åºŠC25ãšãªãã 第ïŒïŒå³ã«ç€ºãããäŸã§ã¯ãççŽ ååã®ååžæ¿
床ïŒïŒ£ïŒã¯ãäœçœ®tBã§æ¿åºŠC27ã§ãäœçœ®tBããäœ
眮t15ã«è¿ã¥ãã«ã€ããŠæžå°ãäœçœ®t15ã§æ¿åºŠC28ãš
ãªããäœçœ®t15ããäœçœ®t16ãŸã§ã®å±€é åã§ã¯ãç
çŽ ååã®ååžæ¿åºŠïŒ£ïŒïŒ£ïŒã¯æ¿åºŠC28ã§äžå®ã§ã
ããäœçœ®t16ããäœçœ®t17ãŸã§ã®å±€é åã«æŒããŠã¯
ççŽ ååã®ååžæ¿åºŠã¯å¢å ããäœçœ®t17ã§ååžæ¿
床ïŒïŒ£ïŒã¯ããŒã¯å€C29ããšããäœçœ®t17ããäœ
眮tTãŸã§ã®å±€é åã«æŒããŠã¯ççŽ ååã®ååžæ¿åºŠ
ïŒïŒ£ïŒã¯æžå°ãäœçœ®tTã§æ¿åºŠC28ãšãªãã æ¬çºæã«æŒããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã«èšã
ãããççŽ ååã®å«æãããŠããå±€é åïŒïŒ£ïŒ
ã¯ãå æ床ãšææµæã®åäžãäž»ããç®çãšããå Ž
åã«ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®å šå±€é åãå ã
ãæ§ã«èšããããå å容局ã®èªç±è¡šé¢ããã®é»è·
ã®æ³šå ¥ãé²æ¢ããããã«ã¯ãèªç±è¡šé¢åŽã®çé¢è¿
åãå ããæ§ã«èšããããæ¯æäœãšå å容局ãšã®
éã®å¯çæ§ã®åŒ·åãå³ãã®ãäž»ããç®çãšããå Ž
åã«ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®æ¯æäœåŽç«¯éšå±€
é åãå ããæ§ã«èšããããã äžèšã®ç¬¬ïŒã®ç®çã®å Žåãå±€é åïŒïŒ£ïŒäžã«å«
æãããççŽ ååã®å«æéã¯ãé«å æ床ãç¶æã
ãçºã«æ¯èŒçå°ãªããããäžèšç¬¬ïŒã®ç®çã®å Žå
å å容局ã®èªç±è¡šé¢ããã®é»è·ã®æ³šå ¥ãé²ããã
ã«æ¯èŒçå€ããããäžèšç¬¬ïŒã®ç®çã®å Žåã«ã¯ã
æ¯æäœãšã®å¯çæ§ã®åŒ·åã確å®ã«å³ãçºã«æ¯èŒç
å€ããããã®ãæãŸããã åãäžèšäžè ãåæã«éæããç®çã®çºã«ã¯ã
æ¯æäœåŽã«æŒããŠæ¯èŒçé«æ¿åºŠã«ååžãããäžå€®
ã«æŒããŠæ¯èŒçäœæ¿åºŠã«ååžãããèªç±è¡šé¢åŽã®
çé¢å±€é åã«ã¯ãççŽ ååãããå€ãããæ§ãªç
çŽ ååã®ååžç¶æ ãå±€é åïŒïŒ£ïŒäžã«åœ¢æããã°
è¯ãã èªç±è¡šé¢ããã®é»è·ã®æ³šå ¥ãé²æ¢ããããã«
ã¯ãèªç±è¡šé¢åŽã§ççŽ ååã®ååžæ¿åºŠïŒ£ïŒïŒ£ïŒã
å€ãããå±€é åïŒïŒ§ïŒã圢æããã®ãæãŸããã æ¬çºæã«æŒããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã«èšã
ãããççŽ ååãå«æããå±€é åïŒïŒ£ïŒã«ããã
ççŽ ååã®å«æéã¯ãå±€é åïŒïŒ£ïŒèªäœã«èŠæ±ã
ããç¹æ§ãæãã¯è©²å±€é åïŒïŒ£ïŒãæ¯æäœïŒïŒïŒ
ã«çŽã«æ¥è§ŠããŠèšããããå Žåã«ã¯ã該æ¯æäœïŒ
ïŒïŒãšã®æ¥è§Šçé¢ã«æŒããç¹æ§ãšã®é¢ä¿çãææ©
çé¢é£æ§ã«æŒããŠãé©å®éžæããããšãåºæ¥ãã åãåèšå±€é åïŒïŒ£ïŒã«çŽã«æ¥è§ŠããŠä»ã®å±€é
åãèšããããå Žåã«ã¯ã該ä»ã®å±€é åã®ç¹æ§ã
該ä»ã®å±€é åãšã®æ¥è§Šçé¢ã«æŒããç¹æ§ãšã®é¢ä¿
ãèæ ®ãããŠãççŽ ååã®å«æéãé©å®éžæãã
ãã å±€é åïŒïŒ£ïŒäžã«å«æãããççŽ ååã®éã¯ã
圢æãããå å°é»éšæã«èŠæ±ãããç¹æ§ã«å¿ããŠ
ææã«åŸã€ãŠé©å®æ±ºããããããã·ãªã³ã³ååãš
ã²ã«ãããŠã ååãšççŽ ååãšã®åïŒä»¥åŸã
ïŒSiGeCïŒãšèšãïŒã«å¯ŸããŠã奜ãŸããã¯ã0.001
ã50ååïŒ ããã奜ãŸããã¯0.002ã40ååïŒ ã
æé©ã«ã¯ã0.003ã30ååïŒ ãšãããã®ãæãŸã
ãã æ¬çºæã«æŒããŠãå±€é åïŒïŒ£ïŒã第äžã®å±€
ïŒïŒ©ïŒïŒïŒïŒã®å šåãå ããããæãã¯ã第äžã®
å±€ïŒïŒ©ïŒïŒïŒïŒã®å šåãå ããªããšããå±€é å
ïŒïŒ£ïŒã®å±€åT0ã®ç¬¬äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®å±€å
ã«å ããå²åãå åå€ãå Žåã«ã¯ãå±€é åïŒïŒ£ïŒ
ã«å«æãããççŽ ååã®å«æéã®äžéã¯ãåèšã®
å€ããå åå°ãªããããã®ãæãŸããã æ¬çºæã«ãããŠã¯ãå±€é åïŒïŒ£ïŒã®å±€åT0ã
第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®å±€åã«å¯ŸããŠå ããå²
åãïŒåã®ïŒä»¥äžãšãªãæ§ãªå Žåã«ã¯ãå±€é å
ïŒïŒ£ïŒäžã«å«æãããççŽ ååã®éã®äžéãšããŠ
ã¯ãïŒSiGeCïŒã«å¯ŸããŠå¥œãŸããã¯ã30ååïŒ
以äžããã奜ãŸããã¯ã20ååïŒ ä»¥äžãæé©ã«ã¯
10ååïŒ ä»¥äžãšãããã®ãæãŸããã æ¬çºæã«ãããŠãççŽ ååã®å«æãããå±€é å
ïŒïŒ£ïŒã¯ãäžèšããæ§ã«æ¯æäœïŒïŒïŒåŽåã¯ïŒå
ã³ç¬¬äºã®å±€ïŒïŒïŒïŒïŒåŽã®è¿åã«ççŽ ååãæ¯
èŒçé«æ¿åºŠã§å«æãããŠããå±åšé åïŒïŒ¢ïŒãæ
ãããã®ãšããŠèšããããã®ãæãŸããããã®å Ž
åã«ã¯ãæ¯æäœïŒïŒïŒãšç¬¬äžã®å±€ïŒïŒ©ïŒïŒïŒïŒãš
ã®éã®å¯çæ§ãããäžå±€åäžãããããšåã³å容
é»äœãåäžãããããšãåºæ¥ãã äžèšå±åšé åïŒïŒ¢ïŒã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒ
ã®æ¯æäœïŒïŒïŒåŽããã³ç¬¬äºã®å±€ïŒïŒïŒïŒïŒåŽ
ã®è¡šé¢ïŒçé¢ïŒãã5Ό以å ã«èšããããã®ãæ
ãŸããã æ¬çºæã«ãããŠã¯ãäžèšå±åšé åïŒïŒ¢ïŒã¯ã第
äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®ãæ¯æäœïŒïŒïŒãããŸãã¯
第äºã®å±€ïŒïŒïŒïŒïŒåŽã®è¡šé¢ãã5ÎŒåãŸã§ã®
å±€é åïŒLTïŒã®å šéšãšãããå Žåãããããåã
å±€é åïŒLTïŒã®äžéšãšãããå Žåãããã å±åšé åïŒïŒ¢ïŒãå±€é åïŒLTïŒã®äžéšãšãã
ãåã¯å šéšãšãããã¯ã圢æãããå å容局ïŒïŒ
ïŒã«èŠæ±ãããç¹æ§ã«åŸã€ãŠé©å®æ±ºããããã å±åšé åïŒïŒ¢ïŒã¯ããã®äžã«å«æãããççŽ å
åã®å±€åæ¹åã®ååžç¶æ ãšããŠççŽ ååã®ååžæ¿
床ïŒïŒ£ïŒã®æ倧å€Cnaxãã奜ãŸããã¯500åå
ppm以äžããã奜ãŸããã¯800ååppm以äžãæ
é©ã«ã¯1000ååppm以äžãšãããæ§ãªååžç¶æ ãš
ãªãåŸãæ§ã«å±€åœ¢æãããã®ãæãŸããã å³ã¡ãæ¬çºæã«ãããŠã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒ
ïŒäžã®ãççŽ ååã®å«æãããå±€é åïŒïŒ£ïŒã¯ã
æ¯æäœïŒïŒïŒåŽãŸãã¯ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®è¡š
é¢ããã®å±€åã§5Ό以å ã«ååžæ¿åºŠã®æ倧å€Cnaxã
ååšããæ§ã«åœ¢æãããã®ãæãŸããã æ¬çºæã«ãããŠãå¿ èŠã«å¿ããŠç¬¬äžã®å±€ïŒïŒ©ïŒ
ïŒïŒïŒã«å«æãããããã²ã³ååãšããŠã¯ãå ·äœ
çã«ã¯ããçŽ ãå¡©çŽ ãèçŽ ããšãŠçŽ ãæãããã
æ®ã«ããçŽ ãå¡©çŽ ã奜é©ãªãã®ãšããŠæããããš
ãåºæ¥ãã æ¬çºæã®å å°é»éšæã«æŒããŠã¯ãã²ã«ãããŠã
ååã®å«æããã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒå
ã¯ïŒåã³ã²ã«ãããŠã ååã®å«æãããªã第äºã®
å±€é åïŒïŒ³ïŒïŒïŒïŒã«ã¯ãäŒå°ç¹æ§ãæ¯é ããç©
質ãå«æãããããšã«ãããåœè©²å±€é åïŒïŒ§ïŒ
åã¯ïŒåã³å±€é åïŒïŒ³ïŒã®äŒå°ç¹æ§ãææã«åŸã€
ãŠä»»æã«å¶åŸ¡ããããšãåºæ¥ããæ¬çºæã«ãããŠ
ã¯ãäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã®å«æãããå±€é
åïŒPNïŒã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®äžéšåã¯
å šéšã«èšããŠããããåã¯ãå±€é åïŒPNïŒã¯ã
å±€é åïŒïŒ§ïŒãŸãã¯ïŒïŒ³ïŒã®äžéšåã¯å šéšã«èšã
ãŠãããã ãã®æ§ãªäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ãšããŠã¯ã
æè¬ãåå°äœåéã§äºãããäžçŽç©ãæããããš
ãåºæ¥ãæ¬çºæã«æŒããŠã¯ãã·ãªã³ã³ååãŸãã¯
ã²ã«ãããŠã ååã«å¯ŸããŠãïœåäŒå°ç¹æ§ãäžã
ãïœåäžçŽç©åã³ïœåäŒå°ç¹æ§ãäžããïœåäžçŽ
ç©ãæããããšãåºæ¥ããå ·äœçã«ã¯ãïœåäžçŽ
ç©ãšããŠã¯åšæåŸè¡šç¬¬æã«å±ããååïŒç¬¬æ
ååïŒãäŸãã°ãç¡ŒçŽ ïŒïŒ¢ïŒãã¢ã«ãããŠã
ïŒAlïŒãã¬ãªãŠã ïŒGaïŒãã€ã³ãžãŠã ïŒInïŒãã¿ãª
ãŠã ïŒTlïŒçããããæ®ã«å¥œé©ã«çšããŠããã®
ã¯ããGaã§ããããŸããïœåäžçŽç©ãšããŠã¯ã
åšæåŸè¡šç¬¬ æã«å±ããååïŒç¬¬ æååïŒãäŸ
ãã°ãçïŒïŒ°ïŒãç çŽ ïŒAsïŒãã¢ã³ãã¢ã³ïŒSbïŒã
ãã¹ãã¹ïŒBiïŒçã§ãããæ®ã«ã奜é©ã«çšãã
ããã®ã¯ããAsã§ããã æ¬çºæã«æŒããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«å«
æãããäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã®å«æéã¯ã
該第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã«èŠæ±ãããäŒå°ç¹æ§ã
æãã¯è©²ç¬¬äžã®å±€ïŒïŒ©ïŒïŒïŒïŒãçŽã«æ¥è§ŠããŠèš
ããããæ¯æäœïŒïŒïŒãšã®æ¥è§Šçé¢ã«æŒããç¹æ§
ãšã®é¢ä¿çãææ©çé¢é£æ§ã«æŒããŠãé©å®éžæã
ãããšãåºæ¥ãã åãåèšã®äŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã第äžã®
å±€ïŒïŒ©ïŒïŒïŒïŒäžã«å«æãããã®ã«ã該第äžã®å±€
ïŒïŒ©ïŒïŒïŒïŒã®ææãããå±€é åã«å±åšçã«å«æ
ãããå Žåãæ®ã«ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®æ¯æ
äœåŽç«¯éšå±€é åã«å«æãããå Žåã«ã¯ã該局é å
ã«çŽã«æ¥è§ŠããŠèšããããä»ã®å±€é åã®ç¹æ§ãã
該ä»ã®å±€é åãšã®æ¥è§Šçé¢ã«æŒããç¹æ§ãšã®é¢ä¿
ãèæ ®ãããŠãäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã®å«æ
éãé©å®éžæãããã æ¬çºæã«æŒããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«å«
æãããäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã®å«æéãšã
ãŠã¯ã奜ãŸããã¯ã0.01ãïŒÃ104ååppmãã
ã奜é©ã«ã¯0.5ãïŒÃ104ååppmãæé©ã«ã¯ïŒã
ïŒÃ103ååppmãšãããã®ãæãŸããã æ¬çºæã«æŒããŠãäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã
å«æãããå±€é åïŒPNïŒã«æŒãã該ç©è³ªïŒ€ã®å«
æéãã奜ãŸããã¯30ååppm以äžããã奜é©ã«
ã¯50ååppm以äžãæé©ã«ã¯ã100ååppm以äž
ã®å Žåã«ã¯ãåèšäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã¯ã
第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®äžéšã®å±€é åã«å±åšçã«
å«æãããã®ãæãŸãããæ®ã«ç¬¬äžã®å±€ïŒïŒ©ïŒïŒ
ïŒïŒã®æ¯æäœåŽç«¯éšå±€é åïŒïŒ¥ïŒã«ååšãããã®
ãæãŸããã äžèšã®äžã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®æ¯æäœåŽç«¯
éšå±€é åïŒïŒ¥ïŒã«åèšã®æ°å€ä»¥äžã®å«æéãšãªã
æ§ã«åèšäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ãå«æããã
ããšã«ãã€ãŠãäŸãã°åœè©²ç©è³ªïŒ€ãåèšïœåäžçŽ
ç©ã®å Žåã«ã¯ãå å容局ïŒïŒïŒã®èªç±è¡šé¢ïŒïŒïŒ
ã極æ§ã«åž¯é»åŠçãåããéã«æ¯æäœïŒïŒïŒåŽ
ããå å容局ïŒïŒïŒäžãžæ³šå ¥ãããé»åã®ç§»åã
å¹æçã«é»æ¢ããããšãåºæ¥ãåãåèšäŒå°ç¹æ§
ãæ¯é ããç©è³ªãåèšã®ïœåäžçŽç©ã®å Žåã«ã¯ã
å å容局ïŒïŒïŒã®èªç±è¡šé¢ïŒïŒïŒã極æ§ã«åž¯é»
åŠçãåããéã«ãæ¯æäœïŒïŒïŒåŽããå å容局
ïŒïŒïŒäžãžæ³šå ¥ãããæ£åã®ç§»åãå¹æçã«é»æ¢
ããããšãåºæ¥ãã ãã®æ§ã«ãåèšæ¯æäœåŽç«¯éšå±€é åïŒïŒ¥ïŒã«äž
æ¹ã®æ¥µæ§ã®äŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ãå«æãã
ãå Žåã«ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®æ®ãã®å±€é
åãå³ã¡ãåèšæ¯æäœåŽç«¯éšå±€é åïŒïŒ¥ïŒãé€ã
ãéšåã®å±€é åïŒïŒºïŒã«ã¯ãä»ã®æ¥µæ§ã®äŒå°ç¹æ§
ãæ¯é ããç©è³ªãå«æãããŠãè¯ãããæãã¯ã
å極æ§ã®äŒå°ç¹æ§ãæ¯é ããç©è³ªããæ¯æäœåŽç«¯
éšå±€é åïŒïŒ¥ïŒã«å«æãããå®éã®éãããäžæ®µ
ãšå°ãªãéã«ããŠå«æãããŠãè¯ãã ãã®æ§ãªå Žåãåèšå±€é åïŒïŒºïŒäžã«å«æãã
ãåèšäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã®å«æéãšããŠ
ã¯ãæ¯æäœåŽç«¯éšå±€é åïŒïŒ¥ïŒã«å«æãããåèš
ç©è³ªã®æ¥µæ§ãå«æéã«å¿ããŠææã«åŸã€ãŠé©å®æ±º
å®ããããã®ã§ãããã奜ãŸããã¯ã0.001ã
1000ååppmããã奜é©ã«ã¯0.05ã500ååppm
æé©ã«ã¯0.1ã200ååppmãšãããã®ãæãŸã
ãã æ¬çºæã«æŒããŠãæ¯æäœåŽç«¯éšå±€é åïŒïŒ¥ïŒå
ã³å±€é åïŒïŒºïŒã«åçš®ã®äŒå°æ§ãæ¯é ããç©è³ªã
å«æãããå Žåã«ã¯ãåœè©²ç©è³ªã®å±€é åïŒïŒºïŒã«
æŒããå«æéãšããŠã¯ã奜ãŸããã¯ã30ååppm
以äžãšããã®ãæãŸãããäžèšããå Žåã®ä»ã«ã
æ¬çºæã«æŒããŠã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«ã
äžæ¹ã®æ¥µæ§ãæããäŒå°æ§ãæ¯é ããç©è³ªãå«æ
ãããå±€é åãšãä»æ¹ã®æ¥µæ§ãæããäŒå°æ§ãæ¯
é ããç©è³ªãå«æãããå±€é åãšãçŽã«æ¥è§Šãã
æ§ã«èšããŠã該æ¥è§Šå±€é åã«æè¬ç©ºä¹å±€ãèšãã
ããšãåºæ¥ããè©°ããäŸãã°ã第äžã®å±€ïŒïŒ©ïŒïŒ
ïŒïŒäžã«ãåèšã®ïœåäžçŽç©ãå«æããå±€é åãš
åèšã®ïœåäžçŽç©ãå«æããå±€é åãšãçŽã«æ¥è§Š
ããæ§ã«èšããŠæè¬ïœâïœæ¥åã圢æããŠã空ä¹
å±€ãèšããããšãåºæ¥ãã æ¬çºæã«ãããŠãïœâGeïŒSiããïŒã§æ§æ
ããã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã¯ãäŸãã°ãã°
ããŒæŸé»æ³ãã¹ããã¿ãªã³ã°æ³ãæãã¯ã€ãªã³ã
ã¬ãŒãã€ã³ã°æ³çã®æŸé»çŸè±¡ãå©çšããç空å ç©
æ³ã«ãã€ãŠåœ¢æããããäŸãã°ãã°ããŒæŸé»æ³ã«
ãã€ãŠãïœâGeïŒSiããïŒã§æ§æããã第äž
ã®å±€é åïŒïŒ§ïŒïŒïŒïŒã圢æããã«ã¯ãåºæ¬çã«
ã¯ã²ã«ãããŠã ååãäŸçµŠãåŸãã²ã«ãããŠã å
åäŸçµŠçšã®åæã¬ã¹ãšå¿ èŠã«å¿ããŠãã·ãªã³ã³å
åãäŸçµŠãåŸãã·ãªã³ã³ååäŸçµŠçšã®åæã¬ã¹ã
æ°ŽçŽ ååå°å ¥çšã®åæã¬ã¹åã¯ïŒåã³ããã²ã³å
åå°å ¥çšã®åæã¬ã¹ãšããå éšãæžå§ãåŸãå ç©
宀å ã«ææã®ã¬ã¹å§ç¶æ ã§å°å ¥ããŠã該å ç©å®€å
ã«ã°ããŒæŸé»æ³ãçèµ·ãããäºãæå®äœçœ®ã«èšçœ®
ãããŠãããæå®ã®æ¯æäœè¡šé¢äžã«ïœâGeïŒSiã
ãïŒãããªãå±€ã圢æããã°è¯ããåãã²ã«
ãããŠã ååãäžåäžãªååžç¶æ ã§ç¬¬äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããã«ã¯ã²ã«ãããŠã å
åã®ååžæ¿åºŠãææã®å€åçæ²ç·ã«åŸã€ãŠå¶åŸ¡ã
ä¹ãïœâGeïŒSiããïŒãããªãå±€ã圢æãã
ãã°è¯ããåãã¹ããã¿ãªã³ã°æ³ã«ãããŠã¯ãäŸ
ãã°ArãHeçã®äžæŽ»æ§ã¬ã¹åã¯ããçã®ã¬ã¹ã
ããŒã¹ãšããæ··åã¬ã¹ã®é°å²æ°äžã§ã·ãªã³ã³åå
ã§æ§æãããã¿ãŒã²ãããæãã¯ã該ã¿ãŒã²ãã
ãšã²ã«ãããŠã ååã§æ§æãããã¿ãŒã²ããã®äº
æã䜿çšããŠãåã¯ãã·ãªã³ã³ååãšã²ã«ãããŠ
ã ååã®æ··åãããã¿ãŒã²ããã䜿çšããŠãå¿ èŠ
ã«å¿ããŠãHeãArçã®çšéã¬ã¹ã§çšéãããã²
ã«ãããŠã ååäŸçµŠçšã®åæã¬ã¹åãå¿ èŠã«å¿ã
ãŠæ°ŽçŽ åååã¯ïŒåã³ããã²ã³ååå°å ¥çšã®ã¬ã¹
ãã¹ããã¿ãªã³ã°çšã®å ç©å®€ã«å°å ¥ããææã®ã¬
ã¹ã®ãã©ãºãé°å²æ°ã圢æããããšã«ãã€ãŠç¬¬äž
ã®å±€é åïŒïŒ§ïŒïŒïŒïŒã圢æããããã®ã¹ããã¿
ãªã³ã°æ³ã«ãããŠãã²ã«ãããŠã ååã®ååžãäž
åäžã«ããå Žåã«ã¯ãåèšã²ã«ãããŠã ååäŸçµŠ
çšã®åæã¬ã¹ã®ã¬ã¹æµéãææã®å€åçæ²ç·ã«åŸ
ã€ãŠå¶åŸ¡ãä¹ããåèšã®ã¿ãŒã²ãããã¹ããã¿ãª
ã³ã°ããŠããã°è¯ãã ã€ãªã³ãã¬ãŒãã€ã³ã°æ³ã®å Žåã«ã¯ãäŸãã°å€
çµæ¶ã·ãªã³ã³åã¯åçµæ¶ã·ãªã³ã³ãšå€çµæ¶ã²ã«ã
ããŠã åã¯åçµæ¶ã²ã«ãããŠã ãšãã倫ã èžçºæº
ãšããŠèžçããŒãã«å容ãããã®èžçºæºãæµæå
ç±æ³ãæãã¯ããšã¬ã¯ããã³ããŒã æ³ïŒEBæ³ïŒ
çã«ãã€ãŠå ç±èžçºãããé£ç¿èžçºç©ãææã®ã¬
ã¹ãã©ãºãé°å²æ°äžãééããã以å€ã¯ãã¹ãã
ã¿ãªã³ã°æ³ã®å Žåãšåæ§ã«ããããšã«ãã€ãŠç¬¬äž
ã®å±€é åïŒïŒ§ïŒïŒïŒïŒã圢æããããšãã§ããã æ¬çºæã«ãããŠäœ¿çšãããã·ãªã³ã³ååäŸçµŠçš
ã®åæã¬ã¹ãšæãåŸãç©è³ªãšããŠã¯ãSiH4ã
Si2H6ãSi3H8ãSi4H10çã®ã¬ã¹ç¶æ ã®åã¯ã¬ã¹
åãåŸãæ°ŽçŽ åç¡ çŽ ïŒã·ã©ã³é¡ïŒãæå¹ã«äœ¿çšã
ãããã®ãšããŠæããããæ®ã«ãå±€äœæäœæ¥æã®
åæ±ãæããã·ãªã³ã³ååäŸçµŠå¹çã®è¯ãçã®ç¹
ã§SiH4ãSi2H6ãã奜ãŸãããã®ãšããŠæããã
ãã ã²ã«ãããŠã ååäŸçµŠçšã®åæã¬ã¹ãšæãåŸã
ç©è³ªãšããŠã¯ãGeH4ãGe2H6ãGe3H8ã
Ge4H10ãGe5H12ãGe6H14ãGe7H16ãGe88H18ã
Ge9H20çã®ã¬ã¹ç¶æ ã®åã¯ã¬ã¹åãåŸãæ°ŽçŽ å
ã²ã«ãããŠã ãæå¹ã«äœ¿çšããããã®ãšããŠæã
ãããæ®ã«ãå±€äœæäœæ¥æã®åæ±ãæããã²ã«ã
ããŠã ååäŸçµŠå¹çã®è¯ãçã®ç¹ã§ãGeH4ã
Ge2H6ãGe3H8ã奜ãŸãããã®ãšããŠæããã
ãã æ¬çºæã«ãããŠäœ¿çšãããããã²ã³ååå°å ¥çš
ã®åæã¬ã¹ãšããŠæå¹ãªã®ã¯ãå€ãã®ããã²ã³å
åç©ãæããããäŸãã°ããã²ã³ã¬ã¹ãããã²ã³
åç©ãããã²ã³éååç©ãããã²ã³ã§çœ®æããã
ã·ã©ã³èªå°äœçã®ã¬ã¹ç¶æ ã®åã¯ã¬ã¹åãåŸãã
ãã²ã³ååç©ã奜ãŸããæãããããåãæŽã«
ã¯ãã·ãªã³ã³ååãšããã²ã³ååãšãæ§æèŠçŽ ãš
ããã¬ã¹ç¶æ ã®åã¯ã¬ã¹åãåŸããããã²ã³åå
ãå«ãæ°ŽçŽ å çŽ ååç©ãæå¹ãªãã®ãšããŠæ¬çº
æã«ãããŠã¯æããããšãåºæ¥ãã æ¬çºæã«ãããŠå¥œé©ã«äœ¿çšãåŸãããã²ã³åå
ç©ãšããŠã¯ãå ·äœçã«ã¯ãããçŽ ãå¡©çŽ ãèçŽ ã
ãšãŠçŽ ã®ããã²ã³ã¬ã¹ãBrFãClFãClF3ã
BrF5ãBrF3ãIF3ãIF7ãIClãIBrçã®ããã²ã³
éååç©ãæããããšãåºæ¥ãã ããã²ã³ååãå«ãç¡ çŽ ååç©ãæè¬ãããã²
ã³ååã§çœ®æãããã·ã©ã³èªå°äœãšããŠã¯ãå ·äœ
çã«ã¯äŸãã°Si2F4ãSi2F6ãSiCl4ãSiBr4çã®ã
ãã²ã³åç¡ çŽ ã奜ãŸãããã®ãšããŠæããããšã
åºæ¥ãã ãã®æ§ãªããã²ã³ååãå«ãç¡ çŽ ååç©ãæ¡çš
ããŠã°ããŒæŸé»æ³ã«ãã€ãŠæ¬çºæã®ç¹åŸŽçãªå å°
é»éšæã圢æããå Žåã«ã¯ãã²ã«ãããŠã ååäŸ
絊çšã®åæã¬ã¹ãšå ±ã«ã·ãªã³ã³ååãäŸçµŠãåŸã
åæã¬ã¹ãšããŠã®æ°ŽçŽ åç¡ çŽ ã¬ã¹ã䜿çšããªããš
ããææã®æ¯æäœïŒïŒïŒäžã«ããã²ã³ååãå«ã
ïœâSiGeããæã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã
圢æããäºãåºæ¥ãã ã°ããŒæŸé»æ³ã«åŸã€ãŠãããã²ã³ååãå«ã第
äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã補é ããå Žåãåºæ¬ç
ã«ã¯ãäŸãã°ã·ãªã³ã³ååäŸçµŠçšã®åæã¬ã¹ãšãª
ãããã²ã³åç¡ çŽ ãšã²ã«ãããŠã ååäŸçµŠçšã®å
æã¬ã¹ãšãªãæ°ŽçŽ åã²ã«ãããŠã ãšArããHe
çã®ã¬ã¹çãšãæå®ã®æ··åæ¯ããã³ã¬ã¹æµéã«ãª
ãæ§ã«ããŠç¬¬äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã圢æãã
å ç©å®€ã«å°å ¥ããã°ããŒæŸé»ãçèµ·ããŠããçã®
ã¬ã¹ã®ãã©ãºãé°å²æ°ã圢æããããšã«ãã€ãŠã
ææã®æ¯æäœïŒïŒïŒäžã«ç¬¬äžã®å±€é åïŒïŒ§ïŒïŒïŒ
ïŒã圢æãåŸããã®ã§ããããæ°ŽçŽ ååã®å°å ¥å²
åã®å¶åŸ¡ãäžå±€å®¹æã«ãªãæ§ã«å³ãçºã«ããçã®
ã¬ã¹ã«æŽã«æ°ŽçŽ ã¬ã¹åã¯æ°ŽçŽ ååãå«ãç¡ çŽ åå
ç©ã®ã¬ã¹ãææéæ··åããŠå±€åœ¢æããŠãè¯ãã åãåã¬ã¹ã¯åç¬çš®ã®ã¿ã§ãªãæå®ã®æ··åæ¯ã§
è€æ°çš®æ··åããŠäœ¿çšããŠãå·®æ¯ããªããã®ã§ã
ãã ã¹ããã¿ãªã³ã°æ³ãã€ãªã³ãã¬ãŒãã€ã³ã°æ³ã®
äœãã®å Žåã«ã圢æããã第äžã®å±€é åïŒïŒ§ïŒïŒ
ïŒïŒäžã«ããã²ã³ååãå°å ¥ããã«ã¯ãåèšã®ã
ãã²ã³ååç©åã¯ããã²ã³ååãå«ã çŽ ååç©
ã®ã¬ã¹ãå ç©å®€äžã«å°å ¥ããŠè©²ã¬ã¹ã®ãã©ãºãé°
å²æ°ã圢æããŠããã°è¯ããã®ã§ããã åã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«æ°ŽçŽ ååã
å°å ¥ããå Žåã«ã¯ãæ°ŽçŽ ååå°å ¥çšã®åæã¬ã¹ã
äŸãã°ããæãã¯åèšããã·ã©ã³é¡åã¯ïŒåã³
æ°ŽçŽ åã²ã«ãããŠã çã®ã¬ã¹é¡ãã¹ããã¿ãªã³ã°
çšã®å ç©å®€äžã«å°å ¥ããŠè©²ã¬ã¹é¡ã®ãã©ãºãé°å²
æ°ã圢æããŠããã°è¯ãã æ¬çºæã«ãããŠã¯ãããã²ã³ååå°å ¥çšã®åæ
ã¬ã¹ãšããŠäžèšãããããã²ã³ååç©æãã¯ãã
ã²ã³ãå«ãç¡ çŽ ååç©ãæå¹ãªãã®ãšããŠäœ¿çšã
ãããã®ã§ãããããã®ä»ã«HFãHClãHBrã
HIçã®ããã²ã³åæ°ŽçŽ ãSiH2F2ãSiH2I2ã
SiH2Cl2ãSiHCl3ãSiH2Br2ãSiHBr3çã®ããã²
ã³çœ®ææ°ŽçŽ åç¡ çŽ ãåã³GeHF3ãGeH2F2ã
GeH3FãGeHCl3ãGeH2Cl2ãGeH3Clã
GeHBr3ãGeH2Br2ãGeH3BrãGeHI3ã
GeH2I2ãGeH3Içã®æ°ŽçŽ åããã²ã³åã²ã«ãã
ãŠã çã®æ°ŽçŽ ååãæ§æèŠçŽ ã®ïŒã€ãšããããã²
ã³åç©ãGeF4ãGeCl4ãGeBr4ãGeI4ãGeF4ã
GeCl2ãGeBr2ãGeI2çã®ããã²ã³åã²ã«ãããŠ
ã ãçã ã®ã¬ã¹ç¶æ ã®æãã¯ã¬ã¹åãåŸãç©è³ªã
æå¹ãªç¬¬äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒåœ¢æçšã®åºçºç©
質ãšããŠæããäºãåºæ¥ãã ããçã®ç©è³ªã®äžãæ°ŽçŽ ååãå«ãããã²ã³å
ç©ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒåœ¢æã®éã«å±€äž
ã«ããã²ã³ååã®å°å ¥ãšåæã«é»æ°çæãã¯å é»
çç¹æ§ã®å¶åŸ¡ã«æ¥µããŠæå¹ãªæ°ŽçŽ ååãå°å ¥ãã
ãã®ã§ãæ¬çºæã«ãããŠã¯å¥œé©ãªããã²ã³å°å ¥çš
ã®åæãšããŠäœ¿çšãããã æ°ŽçŽ ååã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«æ§é
çã«å°å ¥ããã«ã¯ãäžèšã®ä»ã«H2ãæãã¯SiH4ã
Si2H6ãSi3H8ãSi4H10çã®æ°ŽçŽ åç¡ çŽ ãã²ã«ã
ããŠã ååãäŸçµŠããçºã®ã²ã«ãããŠã åã¯ã²ã«
ãããŠã ååç©ãšãæãã¯ãGeH4ãGe2H6ã
Ge3H8ãGe4H10ãGe5H10ãGe6H14ãGe7H16ã
Ge8H18ãGe9H20çã®æ°ŽçŽ åã²ã«ãããŠã ãšã·ãª
ã³ã³ååãäŸçµŠããçºã®ã·ãªã³ã³åã¯ã·ãªã³ã³å
åç©ãšããå ç©å®€äžã«å ±åãããŠæŸé»ãçèµ·ãã
ãäºã§ãè¡ãäºãåºæ¥ãã æ¬çºæã®å¥œãŸããäŸã«ãããŠã圢æããã第äž
ã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããæ°ŽçŽ ååã®
éãåã¯ããã²ã³ååã®éãåã¯æ°ŽçŽ ååãšãã
ã²ã³ååã®éã®åïŒïŒšïŒïŒžïŒã¯ã奜ãŸããã¯ã
0.01ã40ååïŒ ããã奜ãŸããã¯0.05ã30åå
ïŒ ãæé©ã«ã¯0.1ã25ååïŒ ãšãããã®ãæãŸã
ãã 第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããæ°ŽçŽ
åååã¯ïŒåã³ããã²ã³ååã®éãå¶åŸ¡ããã«
ã¯ãäŸãã°æ¯æäœæž©åºŠåã¯ïŒåã³æ°ŽçŽ ååãæã
ã¯ããã²ã³ååãå«æãããçºã«äœ¿çšãããåºçº
ç©è³ªã®å ç©è£ 眮系å ãžå°å ¥ããéãæŸé»ã åçã
å¶åŸ¡ããŠããã°è¯ãã æ¬çºæã«æŒããŠãïœâSiïŒïŒšãïŒã§æ§æãã
ã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã¯ãåèšãã第äžã®
å±€é åïŒïŒ§ïŒïŒïŒïŒåœ¢æçšã®åºçºç©è³ªïŒïŒã®äž
ãããã²ã«ãããŠã ååäŸçµŠçšã®åæã¬ã¹ãšãªã
åºçºç©è³ªãé€ããåºçºç©è³ªã第äºã®å±€é åïŒïŒ³ïŒ
ïŒïŒïŒåœ¢æçšã®åºçºç©è³ªïŒïŒãã䜿çšããŠã第
äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒåœ¢æããå Žåãšãåæ§ã®
æ¹æ³ãšæ¡ä»¶ã«åŸã€ãŠåœ¢æããäºãåºæ¥ãã å³ã¡ãæ¬çºæã«ãããŠãïœâSiïŒïŒšãïŒã§æ§
æããã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã¯äŸãã°ã°ã
ãŒæŸé»æ³ãã¹ããã¿ãªã³ã°æ³ãæãã¯ã€ãªã³ãã¬
ãŒãã€ã³ã°æ³çã®æŸé»çŸè±¡ãå©çšããç空å ç©æ³
ã«ãã€ãŠåœ¢æããããäŸãã°ãã°ããŒæŸé»æ³ã«ã
ã€ãŠãïœâSiïŒïŒšãïŒã§æ§æããã第äºã®å±€é
åïŒïŒ³ïŒïŒïŒïŒã圢æããã«ã¯ãåºæ¬çã«ã¯åèš
ããã·ãªã³ã³ååãäŸçµŠãåŸãã·ãªã³ã³ååäŸçµŠ
çšã®åæã¬ã¹ãšå ±ã«ãå¿ èŠã«å¿ããŠæ°ŽçŽ ååå°å ¥
çšã®åã¯ïŒåã³ããã²ã³ååå°å ¥çšã®åæã¬ã¹
ããå éšãæžå§ãåŸãå ç©å®€å ã«å°å ¥ããŠã該å
ç©å®€å ã«ã°ããŒæŸé»ãçèµ·ãããäºãæå®äœçœ®ã«
èšçœ®ãããŠããæå®ã®æ¯æäœè¡šé¢äžã«ïœâSiïŒïŒšã
ïŒãããªãå±€ã圢æãããã°è¯ããåãã¹ãã
ã¿ãªã³ã°æ³ã§åœ¢æããå Žåã«ã¯ãäŸãã°ArãHe
çã®äžæŽ»æ§ã¬ã¹åã¯ããçã®ã¬ã¹ãããŒã¹ãšãã
æ··åã¬ã¹ã®é°å²æ°äžã§ã·ãªã³ã³ååã§æ§æããã
ã¿ãŒã²ãããã¹ããã¿ãªã³ã°ããéãæ°ŽçŽ ååå
ã¯ïŒåã³ããã²ã³ååå°å ¥çšã®ã¬ã¹ãã¹ããã¿ãª
ã³ã°çšã®å ç©å®€ã«å°å ¥ããŠããã°è¯ããæ¬çºæã«
æŒããŠã圢æããã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒäž
ã«å«æãããæ°ŽçŽ ååã®éãåã¯ããã²ã³ååã®
éãåã¯æ°ŽçŽ ååãšããã²ã³ååã®éã®åïŒïŒšïŒ
ïŒã¯ã奜ãŸããã¯ïŒã40ååïŒ ããã奜é©ã«ã¯
ïŒã30ååïŒ ãæé©ã«ã¯ïŒã25ååïŒ ãšãããã®
ãæãŸãããæ¬çºæã«ãããŠã第äžã®å±€ïŒïŒ©ïŒïŒ
ïŒïŒã«ççŽ ååã®å«æãããå±€é åïŒïŒ£ïŒãèšã
ãã«ã¯ã第äžã®å±€ïŒïŒïŒã®åœ¢æã®éã«ççŽ ååå°
å ¥çšã®åºçºç©è³ªãåèšãã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒ
圢æçšã®åºçºç©è³ªãšå ±ã«äœ¿çšããŠã圢æãããå±€
äžã«ãã®éãå¶åŸ¡ããªããå«æããŠããã°è¯ãã å±€é åïŒïŒ£ïŒã圢æããã®ã«ã°ããŒæŸé»æ³ãçš
ããå Žåã«ã¯ãåèšãã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒåœ¢
æçšã®åºçºç©è³ªã®äžããææã«åŸã€ãŠéžæããã
ãã®ã«ççŽ ååå°å ¥çšã®åºçºç©è³ªãå ããããã
ãã®ãããªççŽ ååå°å ¥çšã®åºçºç©è³ªãšããŠã¯ã
å°ãªããšãççŽ ååãæ§æååãšããã¬ã¹ç¶ã®ç©
質ãŸãã¯ã¬ã¹åãåŸãç©è³ªãã¬ã¹åãããã®ã®äž
ã®å€§æŠã®ãã®ã䜿çšããåŸãã äŸãã°ã·ãªã³ã³ååãæ§æååãšããåæã¬ã¹
ãšãççŽ ååãæ§æååãšããåæã¬ã¹ãšãå¿ èŠ
ã«å¿ããŠæ°ŽçŽ ååãŸãã¯ããã³ããã²ã³ååãæ§
æååãšããåæã¬ã¹ãšãææã®æ··åæ¯ã§æ··åã
ãŠäœ¿çšãããããŸãã¯ãã·ãªã³ã³ååãæ§æåå
ãšããåæã¬ã¹ãšãççŽ ååããã³æ°ŽçŽ ååãæ§
æååãšããåæã¬ã¹ãšããããããŸãææã®æ··
åæ¯ã§æ··åãããããããã¯ã·ãªã³ã³ååãæ§æ
ååãšããåæã¬ã¹ãšãã·ãªã³ã³ååãççŽ åå
ããã³æ°ŽçŽ ååã®ïŒã€ãæ§æååãšããåæã¬ã¹
ãšãæ··åããŠäœ¿çšããããšãã§ããã ãŸããå¥ã«ã¯ãã·ãªã³ã³ååãšæ°ŽçŽ ååãšãæ§
æååãšããåæã¬ã¹ã«ãççŽ ååãæ§æååãš
ããåæã¬ã¹ãæ··åããŠäœ¿çšããŠãè¯ãã ççŽ ååå°å ¥çšã®åæã¬ã¹ãšããŠæå¹ãªãã®ãš
ããŠã¯ãççŽ ååãšæ°ŽçŽ ååãšãæ§æååãšã
ããäŸãã°ççŽ æ°ïŒãïŒã®é£œåçåæ°ŽçŽ ãççŽ æ°
ïŒãïŒã®ãšãã¬ã³ç³»çåæ°ŽçŽ ççŽ æ°ïŒãïŒã®ã¢ã»
ãã¬ã³ç³»çåæ°ŽçŽ çãæããããã å ·äœçã«ã¯ã飜åçåæ°ŽçŽ ãšããŠã¯ãã¡ã¿ã³
ïŒCH4ïŒããšã¿ã³ïŒC2H6ïŒããããã³ïŒC3H8ïŒãïœ
âãã¿ã³ïŒïœâC4H10ïŒããã³ã¿ã³ïŒC5H12ïŒããš
ãã¬ã³ç³»çåæ°ŽçŽ ãšããŠã¯ããšãã¬ã³ïŒC2H4ïŒã
ãããã¬ã³ïŒC3H6ïŒãããã³âïŒïŒC4H8ïŒããã
ã³âïŒïŒC4H8ïŒãã€ãœããã¬ã³ïŒC4H8ïŒããã³ã
ã³ïŒC5H10ïŒãã¢ã»ãã¬ã³ç³»çåæ°ŽçŽ ãšããŠã¯ã
ã¢ã»ãã¬ã³ïŒC2H2ïŒãã¡ãã«ã¢ã»ãã¬ã³
ïŒC3H4ïŒãããã³ïŒC4H6ïŒçãæããããã ããçã®ä»ã«ã·ãªã³ã³ååãšççŽ ååãšæ°ŽçŽ å
åãšãæ§æååãšããåæã¬ã¹ãšããŠãSi
ïŒCH3ïŒ4ãSiïŒC2H5ïŒ4çã®ã±ã€åã¢ã«ãã«ãæãã
ããšãã§ããã æ¬çºæã«ãããŠã¯ãå±€é åïŒïŒ£ïŒäžã«ã¯ççŽ å
åã§åŸãããå¹æãæŽã«å©é·ãããçºã«ãççŽ å
åã«å ããŠãæŽã«é žçŽ ååãŸãã¯ïŒããã³çªçŽ å
åãå«æããããšãã§ããã é žçŽ ååãå±€é åïŒïŒ£ïŒã«å°å ¥ããããã®é žçŽ
ååå°å ¥çšã®åæã¬ã¹ãšããŠã¯ãäŸãã°é žçŽ
ïŒO2ïŒããªãŸã³ïŒO3ïŒãäžé žåçªçŽ ïŒNOïŒãäºé žå
çªçŽ ïŒNO2ïŒãäžäºé žåçªçŽ ïŒN2OïŒãäžäºé žå
çªçŽ ïŒN2O3ïŒãåäžé žåçªçŽ ïŒN2O4ïŒãäºäºé žå
çªçŽ ïŒN2O5ïŒãäžé žåçªçŽ ïŒNO3ïŒãã·ãªã³ã³å
åãšé žçŽ ååãšæ°ŽçŽ ååãšãæ§æååãšãããäŸ
ãã°ããžã·ãããµã³ïŒH3SiOSiH3ïŒãããªã·ãã
ãµã³ïŒH3SiOSiH2OSiH3ïŒçã®äœçŽã·ãããµã³
çãæããããšãã§ããã å±€é åïŒïŒ£ïŒã圢æããéã«äœ¿çšãããçªçŽ å
åå°å ¥çšã®åæã¬ã¹ã«æãåŸããã®ãšããŠæå¹ã«
䜿çšãããåºçºç©è³ªã¯ãçªçŽ ååãæ§æååãšã
ããããã¯çªçŽ ååãšæ°ŽçŽ ååãšãæ§æååãšã
ãäŸãã°çªçŽ ïŒN2ïŒãã¢ã³ã¢ãã¢ïŒNH3ïŒããã
ã©ãžã³ïŒH2NNH2ïŒãã¢ãžåæ°ŽçŽ ïŒHN3ïŒãã¢ãž
åã¢ã³ã¢ããŠã ïŒNH4N3ïŒçã®ã¬ã¹ç¶ãŸãã¯ã¬
ã¹åãåŸãçªçŽ ãçªåç©ããã³ã¢ãžåç©çã®çªçŽ
ååç©ãæããããšãã§ããããã®ä»ã«ãçªçŽ å
åã®å°å ¥ãå ããŠãããã²ã³ååã®å°å ¥ãè¡ãã
ãšããç¹ãããäžåŒåçªçŽ ïŒF3NïŒãååŒåçªçŽ
ïŒF4N2ïŒçã®ããã²ã³åçªçŽ ååç©ãæããããš
ãã§ããã ã¹ããã¿ãªã³ã°æ³ã«ãã€ãŠãççŽ ååãå«æã
ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã圢æããã«ã¯ãåçµæ¶
ãŸãã¯å€çµæ¶ã®ã·ãªã³ã³ãŠãšããŒãŸãã¯ã°ã©ãã¢
ã€ããŠãšããŒããŸãã¯ã·ãªã³ã³ååãšççŽ ååã
æ··åãããŠå«æãããŠãããŠãšããŒãã¿ãŒã²ãã
ãšããŠãããçãçš®ã ã®ã¬ã¹é°å²æ°äžã§ã¹ããã¿
ãªã³ã°ããããšã«ãã€ãŠè¡ãã°è¯ãã äŸãã°ãã·ãªã³ã³ãŠãšãŒããŒãã¿ãŒã²ãããšã
ãŠäœ¿çšããã°ãççŽ ååãšå¿ èŠã«å¿ããŠæ°ŽçŽ åå
ãŸãã¯ïŒããã³ããã²ã³ååãå°å ¥ããããã®å
æã¬ã¹ããå¿ èŠã«å¿ããŠçšéã¬ã¹ã§çšéããŠãã¹
ããã¿ãŒçšã®å ç©å®€äžã«å°å ¥ããããçã®ã¬ã¹ã®
ã¬ã¹ãã©ãºãã圢æããŠåèšã·ãªã³ã³ãŠãšãŒããŒ
ãã¹ããã¿ãªã³ã°ããã°è¯ãã ãŸããå¥ã«ã¯ãã·ãªã³ã³ååãšççŽ ååãšã¯
å¥ã ã®ã¿ãŒã²ãããšããŠããŸãã¯ã·ãªã³ã³ååãš
ççŽ ååã®æ··åããäžæã®ã¿ãŒã²ããã䜿çšãã
ããšã«ãã€ãŠãã¹ããã¿ãŒçšã®ã¬ã¹ãšããŠã®çšé
ã¬ã¹ã®é°å²æ°äžã§ãŸãã¯å°ãªããšãæ°ŽçŽ ååãŸã
ã¯ïŒããã³ããã²ã³ååãæ§æååãšããŠå«æã
ãã¬ã¹é°å²æ°äžã§ã¹ããã¿ãªã³ã°ããããšã«ãã€
ãŠæããããççŽ ååå°å ¥çšã®åæã¬ã¹ãšããŠ
ã¯ãå è¿°ããã°ããŒæŸé»ã®äŸã§ç€ºããåæã¬ã¹ã®
äžã®ççŽ ååå°å ¥çšã®åæã¬ã¹ãã¹ããã¿ãªã³ã°
ã®å Žåã«ãæå¹ãªã¬ã¹ãšããŠäœ¿çšããåŸãã æ¬çºæã«ãããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®åœ¢æ
ã®éã«ãççŽ ååã®å«æãããå±€é åïŒïŒ£ïŒãèš
ããå Žåã該局é åïŒïŒ£ïŒã«å«æãããççŽ åå
ã®ååžæ¿åºŠïŒ£ïŒïŒ£ïŒãå±€åæ¹åã«å€åãããŠãæ
æã®å±€åæ¹åã®ååžç¶æ ïŒdepth profileïŒãæ
ããå±€é åïŒïŒ£ïŒã圢æããã«ã¯ãã°ããŒæŸé»ã®
å Žåã«ã¯ãååžæ¿åºŠïŒ£ïŒïŒ£ïŒãå€åãããã¹ãç
çŽ ååå°å ¥çšã®åºçºç©è³ªã®ã¬ã¹ãããã®ã¬ã¹æµé
ãææã®å€åçæ²ç·ã«åŸã€ãŠé©å®å€åãããªã
ããå ç©å®€å ã«å°å ¥ããããšã«ãã€ãŠæãããã äŸãã°æåãããã¯å€éšé§åã¢ãŒã¿çã®éåžžçš
ããããŠããäœããã®æ¹æ³ã«ãããã¬ã¹æµè·¯ç³»ã®
éäžã«èšããããæå®ã®ããŒãã«ãã«ãã®éå£ã
挞æå€åãããæäœãè¡ãã°è¯ãããã®ãšããæµ
éã®å€åçã¯ç·åã§ããå¿ èŠã¯ãªããäŸãã°ãã€
ã³ã³çãçšããŠããããããèšèšãããå€åçæ²
ç·ãåŸãããšãã§ããã å±€é åïŒïŒ£ïŒãã¹ããã¿ãªã³ã°æ³ã«ãã€ãŠåœ¢æ
ããå ŽåãççŽ ååã®å±€åæ¹åã®ååžæ¿åºŠïŒ£ïŒïŒ£ïŒ
ãå±€åæ¹åã§å€åãããŠãççŽ ååã®å±€åæ¹åã®
ææã®ååžç¶æ ïŒdepth profileïŒã圢æããã«
ã¯ã第äžã«ã¯ãã°ããŒæŸé»æ³ã«ããå Žåãšåæ§
ã«ãççŽ ååå°å ¥çšã®åºçºç©è³ªãã¬ã¹ç¶æ ã§äœ¿çš
ãã該ã¬ã¹ãå ç©å®€äžãžå°å ¥ããéã®ã¬ã¹æµéã
ææã«åŸã€ãŠé©å®å€åãããããšã«ãã€ãŠæãã
ãã 第äºã«ã¯ãã¹ããã¿ãªã³ã°çšã®ã¿ãŒã²ãããã
äŸãã°ã·ãªã³ã³ååãšççŽ ååãšã®æ··åãããã¿
ãŒã²ããã䜿çšããã®ã§ããã°ãã·ãªã³ã³ååãš
ççŽ ååãšã®æ··åæ¯ããã¿ãŒã²ããã®å±€åæ¹åã«
ãããŠãäºãå€åãããŠããããšã«ãã€ãŠæãã
ãã 第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«ãäŒå°ç¹æ§ãæ¯é ã
ãç©è³ªãäŸãã°ã第æååæãã¯ç¬¬ïŒ¶æååã
æ§é çã«å°å ¥ããã«ã¯ã局圢æã®éã«ã第æå
åå°å ¥çšã®åºçºç©è³ªæãã¯ç¬¬ïŒ¶æååå°å ¥çšã®åº
çºç©è³ªãã¬ã¹ç¶æ ã§å ç©å®€äžã«ã第äºã®å±€é å
ïŒïŒ³ïŒïŒïŒïŒã圢æããçºã®ä»ã®åºçºç©è³ªãšå ±ã«
å°å ¥ããŠããã°è¯ãããã®æ§ãªç¬¬æååå°å ¥çš
ã®åºçºç©è³ªãšæãåŸããã®ãšããŠã¯ãåžžæž©åžžå§ã§
ã¬ã¹ç¶ã®åã¯ãå°ãªããšã局圢ææ¡ä»¶äžã§å®¹æã«
ã¬ã¹åãåŸããã®ãæ¡çšãããã®ãæãŸãããã
ã®æ§ãªç¬¬æååå°å ¥çšã®åºçºç©è³ªãšããŠå ·äœç
ã«ã¯ç¡ŒçŽ ååå°å ¥çšãšããŠã¯B2H6ãB4H10ã
B5H9ãB5H11ãB6H10ãB6H12ãB6H14çã®æ°ŽçŽ
åç¡ŒçŽ ãBF3ãBCl3ãBBr3çã®ããã²ã³åç¡ŒçŽ
çãæããããããã®ä»ãAlCl3ãGeCl4ãGe
ïŒCH3ïŒ4ãInCl3ãTlCl3çãæããããšãåºæ¥ãã 第æååå°å ¥çšã®åºçºç©è³ªãšããŠãæ¬çºæã«
ãããŠæå¹ã«äœ¿çšãããã®ã¯ãçååå°å ¥çšãšã
ãŠã¯ãPH3ãP2H4çã®æ°ŽçŽ åçãPH4IãPF3ã
PF5ãPCl3ãPCl5ãPBr3ãPBr5ãPI3çã®ããã²
ã³åçãæããããããã®ä»ãAsH3ãAsF3ã
AsCl3ãAsBr3ãAsF5ãSbH3ãSbF3ãSbF5ã
SbCl3ãSbCl5ãBiH3ãBiCl3ãBiBr3çã第æ
ååå°å ¥çšã®åºçºç©è³ªã®æå¹ãªãã®ãšããŠæãã
ããšãåºæ¥ãã æ¬çºæã«æŒããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒãæ§æ
ããäŒå°ç¹æ§ãæ¯é ããç©è³ªãå«æé ããŠæ¯æäœ
ïŒïŒïŒåŽã«ååšããŠèšããããå±€é åïŒPNïŒã®
å±€åãšããŠã¯ã該局é åïŒPNïŒãšè©²å±€é å
ïŒPNïŒäžã«åœ¢æããã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã
æ§æããä»ã®å±€é åãšã«èŠæ±ãããç¹æ§ã«å¿ããŠ
ææã«åŸã€ãŠé©å®æ±ºå®ããããã®ã§ãããããã®
äžéãšããŠã¯ã奜ãŸããã¯30â«ä»¥äžããã奜é©ã«
ã¯40â«ä»¥äžãæé©ã«ã¯ã50â«ä»¥äžãšãããã®ãæ
ãŸãããåãåèšå±€é åïŒPNïŒäžã«å«æããã
äŒå°ç¹æ§ãæ¯é ããç©è³ªã®å«æéã30ååppm以
äžãšãããå Žåã«ã¯ã該局é åïŒPNïŒã®å±€åã®
äžéãšããŠã¯ã奜ãŸããã¯10Ό以äžã奜é©ã«ã¯8ÎŒ
以äžãæé©ã«ã¯5Ό以äžãšãããã®ãæãŸããã 第ïŒå³ã«ç€ºãããå å°é»éšæïŒïŒïŒã«ãããŠ
ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«åœ¢æããã第äºã®
å±€ïŒïŒïŒïŒïŒã¯èªç±è¡šé¢ïŒïŒïŒãæããäž»ã«è
湿æ§ãé£ç¶ç¹°è¿ã䜿çšç¹æ§ãé»åçèå§æ§ã䜿çš
ç°å¢ç¹æ§ãèä¹ æ§ã«ãããŠæ¬çºæã®ç®çãéæã
ãçºã«èšããããã ãŸããæ¬çºæã«ãããŠã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒ
ïŒãšç¬¬äºã®å±€ïŒïŒïŒïŒïŒãšãæ§æããéæ¶è³ªæ
æã®åã ãã·ãªã³ã³ååãšããå ±éã®æ§æèŠçŽ ã
æããŠããã®ã§ãäž¡å±€ïŒïŒ©ïŒïŒïŒïŒããã³ïŒïŒ
ïŒïŒïŒã®ç©å±€çé¢ã«ãããŠååŠçãªå®å®æ§ã®ç¢ºä¿
ãå åæãããŠããã æ¬çºæã«ããã第äºã®å±€ïŒïŒïŒïŒïŒã¯ãã·ãª
ã³ã³ååãšçªçŽ ååãšãå¿ èŠã«å¿ããŠæ°ŽçŽ ååãŸ
ãã¯ïŒããã³ããã²ã³ååãšã®å«ãéæ¶è³ªææ
ïŒä»¥åŸããïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yããšèšãã
äœããïŒïŒïœãïœïŒïŒïŒã§æ§æãããã ïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yã§æ§æããã第äº
ã®å±€ïŒïŒïŒïŒïŒã®åœ¢æã¯ãã°ããŒæŸé»æ³ãã¹ã
ãã¿ãªã³ã°æ³ããšã¬ã¯ããã³ããŒã æ³çã«ãã€ãŠ
æããããããçã®è£œé æ³ã¯ã補é æ¡ä»¶ãèšåè³
æ¬æäžã®è² è·çšåºŠã補é èŠæš¡ãäœè£œãããå å°é»
éšæã«ææãããç¹æ§çã®èŠå ã«ãã€ãŠé©å®éžæ
ãããŠæ¡çšãããããææããç¹æ§ãæããå å°
é»éšæã補é ããããã®äœææ¡ä»¶ã®å¶åŸ¡ãæ¯èŒç
容æã§ããããã€ã·ãªã³ã³ååãšå ±ã«çªçŽ ååã
ãã³ããã²ã³ååããäœè£œãã第äºã®å±€ïŒïŒïŒ
ïŒïŒäžã«å°å ¥ããã®ã容æã«è¡ããçã®å©ç¹ãæ
ããã°ããŒæŸé»æ³ãããã¯ã¹ããã¿ãªã³ã°æ³ã奜
é©ã«æ¡çšãããã æŽã«ãæ¬çºæã«ãããŠã¯ãã°ããŒæŸé»æ³ãšã¹ã
ãã¿ãªã³ã°æ³ãšãåäžè£ 眮系å ã§äœµçšããŠç¬¬äºã®
å±€ïŒïŒïŒïŒïŒã圢æããŠãããã ã°ããŒæŸé»æ³ã«ãã€ãŠç¬¬äºã®å±€ïŒïŒïŒïŒïŒã
圢æããã«ã¯ãïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-y圢æ
çšã®åæã¬ã¹ãå¿ èŠã«å¿ããŠçšéã¬ã¹ãšæå®éã®
æ··åæ¯ã§æ··åããŠãæ¯æäœïŒïŒïŒã®èšçœ®ããŠãã
ç空å ç©å®€ã«å°å ¥ãããã®å°å ¥ãããã¬ã¹ããã°
ããŒæŸé»ãçèµ·ãããããšã«ãã€ãŠã¬ã¹ãã©ãºã
åããŠãåèšæ¯æäœïŒïŒïŒäžã«æ¢ã«åœ¢æãããŠã
ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«ãïœâïŒSixN1-xïŒy
ïŒïŒšïŒïŒžïŒ1-yãå ç©ãããã°ããã æ¬çºæã«ãããŠãïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-y
圢æçšã®åæã¬ã¹ãšããŠã¯ãã·ãªã³ã³ååãçªçŽ
ååãæ°ŽçŽ ååãããã²ã³ååã®äžã®å°ãªããšã
äžã€ãæ§æååãšããã¬ã¹ç¶ã®ç©è³ªãŸãã¯ã¬ã¹å
ãåŸãç©è³ªãã¬ã¹åãããã®ã®äžã®å€§æŠã®ãã®ã
䜿çšããåŸãã ã·ãªã³ã³ååãçªçŽ ååãæ°ŽçŽ ååãããã²ã³
ååã®äžã®äžã€ãšããŠã·ãªã³ã³ååãæ§æååãš
ããåæã¬ã¹ã䜿çšããå Žåã¯ãäŸãã°ã·ãªã³ã³
ååãæ§æååãšããåæã¬ã¹ãšãçªçŽ ååãæ§
æååãšããåæã¬ã¹ãšãå¿ èŠã«å¿ããŠæ°ŽçŽ åå
ãæ§æååãšããåæã¬ã¹ãŸãã¯ïŒããã³ããã²
ã³ååãæ§æååãšããåæã¬ã¹ãšãææã®æ··å
æ¯ã§æ··åããŠäœ¿çšãããããŸãã¯ã·ãªã³ã³ååã
æ§æååãšããåæã¬ã¹ãšãçªçŽ ååããã³æ°ŽçŽ
ååãæ§æååãšããåæã¬ã¹ãŸãã¯ïŒããã³çª
çŽ ååããã³ããã²ã³ååãæ§æååãšããåæ
ã¬ã¹ãšããããããŸããææã®æ··åæ¯ã§æ··åãã
ãããããã¯ã·ãªã³ã³ååãæ§æååãšããåæ
ã¬ã¹ãšãã·ãªã³ã³ååãçªçŽ ååããã³æ°ŽçŽ åå
ã®ïŒã€ã®æ§æååãšããåæã¬ã¹ãŸãã¯ãã·ãªã³
ã³ååãçªçŽ ååããã³ããã²ã³ååã®ïŒã€ãæ§
æååãšããåæã¬ã¹ãšãæ··åããŠäœ¿çšããããš
ãã§ããã ãŸããå¥ã«ã¯ãã·ãªã³ã³ååãšæ°ŽçŽ ååãšãæ§
æååãšããåæã¬ã¹ã«çªçŽ ååãæ§æååãšã
ãåæã¬ã¹ãæ··åããŠäœ¿çšããŠãè¯ãããã·ãªã³
ã³ååãšããã²ã³ååãšãæ§æååãšããåæã¬
ã¹ã«çªçŽ ååãæ§æååãšããåæã¬ã¹ãæ··åã
ãŠäœ¿çšããŠãããã æ¬çºæã«ãããŠç¬¬äºã®å±€ïŒïŒïŒïŒïŒäžã«å«æ
ãããããã²ã³ååãšããŠå¥œé©ãªã®ã¯ããçŽ ãå¡©
çŽ ãèçŽ ããšãŠçŽ ã§ãããæ®ã«ããçŽ ãå¡©çŽ ãæ
ãŸãããã®ã§ããã æ¬çºæã«ãããŠã第äºã®å±€ïŒïŒïŒïŒïŒã圢æ
ããã®ã«æå¹ã«äœ¿çšãããåæã¬ã¹ãšæãåŸãã
ã®ãšããŠã¯ãåžžæž©åžžå§ã«ãããŠã¬ã¹ç¶æ ã®ãã®ãŸ
ãã¯å®¹æã«ã¬ã¹åãåŸãç©è³ªãæããããšãã§ã
ãã 第äºã®å±€ïŒïŒïŒïŒïŒãäžèšã®éæ¶è³ªææã§æ§
æããå Žåã®å±€åœ¢ææ³ãšããŠã¯ãã°ããŒæŸé»æ³ã
ã¹ããã¿ãªã³ã°æ³ãã€ãªã³ã€ã³ãã©ã³ããŒã·ãšã³
æ³ãã€ãªã³ãã¬ãŒãã€ã³ã°æ³ããšã¬ã¯ããããŒã
æ³çãæãããããããçã®è£œé æ³ã¯ã補é æ¡
件ãèšåè³æ¬æäžã®è² è·çšåºŠã補é èŠæš¡ãäœè£œã
ããå å°é»éšæã«ææãããç¹æ§çã®èŠå ã«ãã€
ãŠé©å®éžæãããŠæ¡çšãããããææããç¹æ§ã
æããå å°é»éšæã補é ããçºã®äœè£œæ¡ä»¶ã®å¶åŸ¡
ãæ¯èŒç容æã§ããããã€ã·ãªã³ã³ååãšå ±ã«çª
çŽ ååãå¿ èŠã«å¿ããŠæ°ŽçŽ ååãã·ãªã³ã³ååã
äœè£œãã第äºã®å±€ïŒïŒïŒïŒïŒäžã«å°å ¥ããã®ã
容æã«è¡ããçã®å©ç¹ãæããã°ããŒæŸé»æ³ãã
ãã¯ã¹ããã¿ãªã³ã°æ³ã奜é©ã«æ¡çšãããã æŽã«ãæ¬çºæã«ãããŠã¯ãã°ããŒæŸé»æ³ãšã¹ã
ãã¿ãªã³ã°æ³ãšãåäžè£ 眮系å ã§äœµçšããŠç¬¬äºã®
å±€ïŒïŒïŒïŒïŒã圢æããŠãè¯ãã ã°ããŒæŸé»æ³ã«ãã€ãŠãïœâSiNïŒïŒšãïŒã§
æ§æããã第äºã®å±€ïŒïŒïŒïŒïŒã圢æããã«
ã¯ãåºæ¬çã«ã¯ã·ãªã³ã³ååãäŸçµŠãåŸãã·ãªã³
ã³ååäŸçµŠçšã®åæã¬ã¹ãšçªçŽ ååå°å ¥çšã®åæ
ã¬ã¹ãšãå¿ èŠã«å¿ããŠæ°ŽçŽ ååå°å ¥çšã®ãŸãã¯ïŒ
ããã³ããã²ã³ååå°å ¥çšã®åæã¬ã¹ããå éšã
æžå§ã«ãåŸãå ç©å®€å ã«å°å ¥ããŠã該å ç©å®€å ã«
ã°ããŒæŸé»ãçèµ·ãããäºãæå®äœçœ®ã«èšçœ®ãã
ãŠããæå®ã®ç¬¬äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«ïœâSiN
ïŒïŒšãïŒãããªã第äºã®å±€ïŒïŒïŒïŒïŒã圢æ
ãããã°è¯ãã ãŸããã¹ããã¿ãªã³ã°æ³ã§ç¬¬äºã®å±€ïŒïŒïŒïŒ
ïŒã圢æããå Žåã«ã¯ãäŸãã°æ¬¡ã®ããã«ãªãã
ãã 第äžã«ã¯ãäŸãã°ArãHeçã®äžæŽ»æ§ã¬ã¹ãŸã
ã¯ããçã®ã¬ã¹ãããŒã¹ãšããæ··åã¬ã¹ã®é°å²æ°
äžã§ã·ãªã³ã³ååã§æ§æãããã¿ãŒã²ãããã¹ã
ãã¿ãªã³ã°ããéãçªçŽ ååå°å ¥çšã®åæã¬ã¹
ããå¿ èŠã«å¿ããŠæ°ŽçŽ ååå°å ¥çšã®ãŸãã¯ïŒãã
ã³ããã²ã³ååå°å ¥çšã®åæã¬ã¹ãšå ±ã«ã¹ããã¿
ãªã³ã°ãè¡ãç空å ç©å®€å ã«å°å ¥ããŠããã°è¯
ãã 第äºã«ã¯ãã¹ããã¿ãªã³ã°çšã®ã¿ãŒã²ãããšã
ãŠSi3N4ã§æ§æãããã¿ãŒã²ãããããããã¯ã·
ãªã³ã³ååã§æ§æãããã¿ãŒã²ãããšSi3N4ã§æ§
æãããã¿ãŒã²ããã®äºæãããŸãã¯ã·ãªã³ã³å
åãšSi3N4ãšã§æ§æãããã¿ãŒã²ããã䜿çšãã
ããšã§åœ¢æããã第äºã®å±€ïŒïŒïŒïŒïŒäžãžçªçŽ
ååãå°å ¥ããããšãã§ããããã®éãåèšã®çª
çŽ ååå°å ¥çšã®åæã¬ã¹ã䜵ããŠäœ¿çšããã°ãã
ã®æµéãå¶åŸ¡ããããšã§ç¬¬äºã®å±€ïŒïŒïŒïŒïŒäž
ã«å°å ¥ãããçªçŽ ååã®éãä»»æã«å¶åŸ¡ããããš
ã容æã§ããã 第äºã®å±€ïŒïŒïŒïŒïŒäžãžå°å ¥ãããçªçŽ åå
ã®å«æéã¯ãçªçŽ ååå°å ¥çšã®åæã¬ã¹ãå ç©å®€
äžãžå°å ¥ãããéã®æµéãå¶åŸ¡ãããããŸãã¯çª
çŽ ååå°å ¥çšã®ã¿ãŒã²ããäžã«å«æãããçªçŽ å
åã®å²åãã該ã¿ãŒã²ãããäœæããéã«èª¿æŽã
ããããããã¯ããã®äž¡è ãè¡ãããšã«ãã€ãŠã
ææã«åŸã€ãŠä»»æã«å¶åŸ¡ããããšãã§ããã æ¬çºæã«ãããŠäœ¿çšãããã·ãªã³ã³ååäŸçµŠçš
ã®åæã¬ã¹ãšãªãåºçºç©è³ªãšããŠã¯ãSiH4ã
Si2H6ãSi3H8ãSi4H10çã®ã¬ã¹ç¶æ ã®ãŸãã¯ã¬
ã¹åãåŸãæ°ŽçŽ åç¡ çŽ ïŒã·ã©ã³é¡ïŒã䜿çšããã
ãã®ãšããŠæããããæ®ã«ãå±€äœæäœæ¥ã®æ±ãæ
ããã·ãªã³ã³ååäŸçµŠå¹çã®è¯ãçã®ç¹ã§SiH4ã
Si2H6ã奜ãŸãããã®ãšããŠæãããããããç
ã®åºçºç©è³ªã䜿çšããã°ãå±€äœææ¡ä»¶ãé©åã«éž
æããããšã«ãã€ãŠåœ¢æããã第äºã®å±€ïŒïŒïŒ
ïŒïŒäžã«ã·ãªã³ã³ååãšå ±ã«æ°ŽçŽ ååãå°å ¥ãåŸ
ãã ã·ãªã³ã³ååäŸçµŠçšã®åæã¬ã¹ãšãªãæå¹ãªåº
çºç©è³ªãšããŠã¯ãäžèšã®æ°ŽçŽ åç¡ çŽ ã®ä»ã«ããã
ã²ã³ååãå«ãç¡ çŽ ååç©ãæè¬ãããã²ã³åå
ã§çœ®æãããã·ã©ã³èªå°äœãå ·äœçã«ã¯äŸãã°
SiF4ãSi2F6ãSiCl4ãSiBr4çã®ããã²ã³åç¡ çŽ
ã奜ãŸãããã®ãšããŠæããããšãã§ããã æŽã«ã¯ãSiH2F2ãSiH2I2ãSiH2Cl2ãSiHCl2ã
SiH2Br2ãSiHBr2çã®ããã²ã³çœ®ææ°ŽçŽ åç¡ çŽ ã
çã ã®ã¬ã¹ç¶æ ã®ãããã¯ã¬ã¹åãåŸããæ°ŽçŽ å
åãæ§æèŠçŽ ã®ïŒã€ãšããããã²ã³åç©ãæå¹ãª
第äºã®å±€ïŒïŒïŒïŒïŒã®åœ¢æã®çºã®ã·ãªã³ã³åå
äŸçµŠçšã®åºçºç©è³ªãšããŠæããäºãã§ããã ããçã®ããã²ã³ååãå«ãç¡ çŽ ååç©ã䜿çš
ããå Žåã«ããåè¿°ããããã«å±€åœ¢ææ¡ä»¶ã®é©å
ãªéžæã«ãã€ãŠã圢æããã第äºã®å±€ïŒïŒïŒïŒ
ïŒäžã«ã·ãªã³ã³ååãšå ±ã«ãããã²ã³ååãå°å ¥
ããããšãã§ããã äžèšããåºçºç©è³ªã®äžã§æ°ŽçŽ ååãå«ãã·ãªã³
ã³åç¡ çŽ ååç©ã¯ã第äºã®å±€ïŒïŒïŒïŒïŒã®åœ¢æ
ã®éã«ãå±€äžã«ããã²ã³ååã®å°å ¥ãšåæã«é»æ°
çãããã¯å é»çç¹æ§ã®å¶åŸ¡ã«æ¥µããŠæå¹ãªæ°ŽçŽ
ååãå°å ¥ãããã®ã§ãæ¬çºæã«ãããŠã¯å¥œé©ãª
ããã²ã³ååå°å ¥çšã®åºçºç©è³ªãšããŠäœ¿çšãã
ãã æ¬çºæã«ãããŠç¬¬äºã®å±€ïŒïŒïŒïŒïŒã圢æã
ãéã«äœ¿çšãããããã²ã³ååå°å ¥çšã®åæã¬ã¹
ãšãªãæå¹ãªåºçºç©è³ªãšããŠã¯ãäžèšãããã®ã®
ä»ã«ãäŸãã°ãããçŽ ãå¡©çŽ ãèçŽ ããšãŠçŽ ã®ã
ãã²ã³ã¬ã¹ãBrFãClFãClF3ãBrF3ãBrF5ã
IF3ãIF7ãIClãIBrçã®ããã²ã³éååç©ãHFã
HClãHBrãHIçã®ã·ãªã³ã³åæ°ŽçŽ ãæããã
ãšãã§ããã 第äºã®å±€ïŒïŒïŒïŒïŒã圢æããéã«äœ¿çšãã
ãçªçŽ ååå°å ¥çšã®åæã¬ã¹ã«æãåŸããã®ãšã
ãŠæå¹ã«äœ¿çšãããåºçºç©è³ªã¯ãçªçŽ ååãæ§æ
ååãšããããããã¯çªçŽ ååãšæ°ŽçŽ ååãšãæ§
æååãšããäŸãã°çªçŽ ïŒN2ïŒãã¢ã³ã¢ãã¢
ïŒNH3ïŒãããã©ãžã³ïŒH2NNH2ïŒãã¢ãžåæ°ŽçŽ
ïŒHN3ïŒãã¢ãžåã¢ã³ã¢ããŠã ïŒNH4N3ïŒçã®ã¬
ã¹ç¶ã®ãŸãã¯ã¬ã¹åãåŸãçªçŽ ãçªåç©ããã³ã¢
ãžåç©çã®çªçŽ ååç©ãæããããšãã§ãããã
ã®ä»ã«ãçªçŽ ååã®å°å ¥ã«å ããŠãããã²ã³åå
ã®å°å ¥ãè¡ãããšããç¹ãããåºçºç©è³ªãšããŠ
ã¯ãäžåŒåçªçŽ ïŒF3NïŒãååŒåçªçŽ ïŒF4N2ïŒç
ã®ã·ãªã³ã³åçªçŽ ååç©ãæããããšãã§ããã æ¬çºæã«ãããŠã第äºã®å±€ïŒïŒïŒïŒïŒãã°ã
ãŒæŸé»æ³ãŸãã¯ã¹ããã¿ãªã³ã°æ³ã§åœ¢æããéã«
䜿çšãããçšéã¬ã¹ãšããŠã¯ãæè¬ãåžã¬ã¹ãäŸ
ãã°HeãNeãArçã奜é©ãªãã®ãšããŠæãã
ããšãã§ããã æ¬çºæã«ããã第äºã®å±€ïŒïŒïŒïŒïŒã¯ããã®
èŠæ±ãããç¹æ§ãææéãã«äžããããããã«æ³š
ææ·±ã圢æãããã ããªãã¡ãã·ãªã³ã³ååãçªçŽ ååãå¿ èŠã«å¿
ããŠæ°ŽçŽ ååãŸãã¯ïŒããã³ããã²ã³ååãæ§æ
ååãšããç©è³ªã¯ããã®äœææ¡ä»¶ã«ãã€ãŠæ§é ç
ã«ã¯çµæ¶ããã¢ã¢ã«ãã€ã¹ãŸã§ã®åœ¢æ ãåããé»
æ°ç©æ§çã«ã¯ãå°é»æ§ããåå°äœæ§ãããã«ã¯ã
絶çžæ§ãŸã§ã®éã®æ§è³ªã瀺ãããŸããå å°é»çæ§
質ããéå å°é»çæ§è³ªã瀺ããããã§ãæ¬çºæã«
ãããŠã¯ãç®çã«å¿ããææã®ç¹æ§ãæããïœâ
ïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yã圢æãããããã«ãæ
æã«åŸã€ãŠãã®äœææ¡ä»¶ã®éžæãå³å¯ã«æãã
ãã äŸãã°ã第äºã®å±€ïŒïŒïŒïŒïŒãé»æ°çèå§æ§
ã®åäžãäž»ãªç®çãšããŠèšããã«ã¯ãïœâïŒSix
N1-xïŒyïŒïŒšïŒïŒžïŒ1-yã¯äœ¿çšç°å¢ã«ãããŠé»æ°çµ¶çž
æ§çæåã®é¡èãªéæ¶è³ªææãšããŠäœæãããã ãŸããé£ç¶ç¹°è¿ã䜿çšç¹æ§ã䜿çšç°å¢ç¹æ§ã®å
äžãäž»ããç®çãšããŠç¬¬äºã®å±€ïŒïŒïŒïŒïŒãèš
ããããå Žåã«ã¯ãäžèšã®é»æ°çµ¶çžæ§ã®åºŠåã¯ã
ãçšåºŠç·©åãããç §å°ãããå ã«å¯ŸããŠããçšåºŠ
ã®æ床ãæããéæ¶è³ªææãšããŠïœâïŒSixN1-xïŒy
ïŒïŒšïŒïŒžïŒ1-yãäœæãããã 第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®è¡šé¢ã«ãïœâïŒSix
N1-xïŒyïŒïŒšïŒïŒžïŒ1-yããæã第äºã®å±€ïŒïŒïŒïŒ
ïŒã圢æããéã«ãããã局圢æäžã®æ¯æäœæž©åºŠ
ã¯ã圢æãããå±€ã®æ§é ããã³ç¹æ§ãå·Šå³ããé
èŠãªå åã§ãããæ¬çºæã«ãããŠã¯ãç®çãšãã
ç¹æ§ãæããïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yãææ
éãã«äœæããåŸãããã«å±€äœææã®æ¯æäœæž©åºŠ
ãå³å¯ã«å¶åŸ¡ãããã®ãæãŸãããæ¬çºæã«ãã
ããææã®ç®çãå¹æçã«éæãããããã®ç¬¬äº
ã®å±€ïŒïŒïŒïŒïŒã®åœ¢ææ³ã«äœµããŠé©å®æé©ç¯å²
ã®æ¯æäœæž©åºŠãéžæãããŠã第äºã®å±€ïŒïŒïŒïŒ
ïŒã®åœ¢æãå®è¡ãããããå±€äœææã®æ¯æäœæž©åºŠ
ã¯å¥œãŸããã¯ã20ã400âããã奜é©ã«ã¯50ã350
âãæé©ã«ã¯100ã300âãšãããã®ãæãŸããã
ã®ã§ããã 第äºã®å±€ïŒïŒïŒïŒïŒã®åœ¢æã«ã¯ãå±€ãæ§æã
ãååã®çµææ¯ã®åŸ®åŠãªå¶åŸ¡ãå±€åã®å¶åŸ¡ãä»ã®
æ¹æ³ã«æ¯ã¹ãŠæ¯èŒç容æã§ããäºçã®ããã«ãã°
ããŒæŸé»æ³ãã¹ããã¿ãªã³ã°æ³ã®æ¡çšãæå©ã§ã
ãããããçã®å±€åœ¢ææ³ã§ç¬¬äºã®å±€ïŒïŒïŒïŒïŒ
ã圢æããå Žåã«ã¯ãåèšã®æ¯æäœæž©åºŠãšåæ§ã«
局圢æã®éã®æŸé»ãã¯ãŒããäœæãããïœâïŒSix
N1-xïŒyïŒïŒšïŒïŒžïŒ1-yã®ç¹æ§ãå·Šå³ããéèŠãªå å
ã®äžã€ã§ããã æ¬çºæã«ãããç®çãéæãããããã®ç¹æ§ã
æããïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yãçç£æ§è¯ã
å¹æçã«äœæãããããã®æŸé»ãã¯ãŒæ¡ä»¶ãšããŠ
ã¯ã奜ãŸããã¯1.0ã300Wããã奜é©ã«ã¯2.0ã
250Wãæé©ã«ã¯5.0ã200Wãšãããã®ãæãŸã
ããã®ã§ããã å ç©å®€å ã®ã¬ã¹å§ã¯å¥œãŸããã¯0.01ã1Torrã
ãã奜é©ã«ã¯ã0.1ã0.5TorrçšåºŠãšãããã®ãæ
ãŸããã æ¬çºæã«ãããŠã第äºã®å±€ïŒïŒïŒïŒïŒãäœæ
ããããã®æ¯æäœæž©åºŠããã³æŸé»ãã¯ãŒã®æãŸã
ãæ°å€ç¯å²ãšããŠã¯åèšããç¯å²ã®å€ãæããã
ããããããããçã®å±€äœæãã¢ã¯ã¿ãŒã¯ãç¬ç«
çã«å¥ã ã«æ±ºãããããã®ã§ã¯ãªããææç¹æ§ã®
ïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yããæã第äºã®å±€
ïŒïŒïŒïŒïŒã圢æãããããã«çžäºçææ©çé¢
é£æ§ã«åºã¥ããŠæé©å€ã決ããããã®ãæãŸã
ãã æ¬çºæã®å å°é»éšæã«ããã第äºã®å±€ïŒïŒïŒã«
å«æãããçªçŽ ååã®éã¯ã第äºã®å±€ïŒïŒïŒã®äœ
ææ¡ä»¶ãšåæ§ãæ¬çºæã®ç®çãéæããææã®ç¹
æ§ãåŸããã第äºã®å±€ïŒïŒïŒïŒïŒã圢æããã
éèŠãªå åã§ãããããã§ããã®ç¬¬äºã®å±€ïŒïŒ
ïŒïŒïŒã«å«æãããçªçŽ ååã®éã¯ã第äºã®å±€
ïŒïŒïŒïŒïŒãæ§æããéæ¶è³ªææã®çš®é¡ããã³
ãã®ç¹æ§ã«å¿ããŠé©å®ææã«å¿ããŠæ±ºããããã
ã®ã§ããã ããªãã¡ãåèšäžè¬åŒïœâïŒSixN1-xïŒyïŒïŒšïŒ
ïŒ1-yã§ç€ºãããéæ¶è³ªææã¯ã倧å¥ãããšãã·
ãªã³ã³ååãšçªçŽ ååãšã§æ§æãããéæ¶è³ªææ
ïŒä»¥åŸããïœâSiaN1-aããšèšããäœããïŒïŒïœïŒ
ïŒïŒãã·ãªã³ã³ååãšçªçŽ ååãšæ°ŽçŽ ååãšã§æ§
æãããéæ¶è³ªææïŒä»¥åŸãïœâïŒSibN1-bïŒcH1-c
ãšèšããäœããïŒïŒïœãïœïŒïŒïŒãã·ãªã³ã³åå
ãšçªçŽ ååãšããã²ã³ååãšå¿ èŠã«å¿ããŠæ°ŽçŽ å
åãšã§æ§æãããéæ¶è³ªææïŒä»¥åŸããïœâïŒSid
N1-dïŒeïŒïŒšïŒïŒžïŒ1-eããšèšããäœãïŒïŒïœãïœ ïŒ
ïŒïŒã«ããããåé Œãããã æ¬çºæã«ãããŠã第äºã®å±€ïŒïŒïŒïŒïŒãïœâ
SiaN1-aã§æ§æãããå Žåã第äºã®å±€ïŒïŒïŒïŒ
ïŒã«å«æãããçªçŽ ååã®éã¯ã奜ãŸããã¯ïŒÃ
10-3ã60ååïŒ ããã奜é©ã«ã¯ïŒã50ååïŒ ãæ
é©ã«ã¯10ã45ååïŒ ãšãããã®ãæãŸãããã®ã§
ãããããªãã¡ãå ã®ïœâSiaN1-aã®ïœã®è¡šç€ºã§
è¡ãã°ãïœã奜ãŸããã¯0.4ã0.99999ããã奜é©
ã«ã¯0.5ã0.99ãæé©ã«ã¯0.55ã0.9ã§ããã æ¬çºæã«ãããŠã第äºã®å±€ïŒïŒïŒïŒïŒãïœâ
ïŒSibN1-bïŒcH1-cã§æ§æãããå Žåã第äºã®å±€
ïŒïŒïŒïŒïŒã«å«æãããçªçŽ ååã®éã¯ã奜ãŸ
ããã¯ïŒÃ10-3ã55ååïŒ ãšããããã奜ãŸãã
ã¯ïŒã55ååïŒ ãæé©ã«ã¯10ã55ååïŒ ãšããã
ã®ãæãŸãããã®ã§ãããããã«ãæ°ŽçŽ ååã®å«
æéãšããŠã¯ã奜ãŸããã¯ïŒã40ååïŒ ããã奜
ãŸããã¯ïŒã35ååïŒ ãæé©ã«ã¯ïŒã30ååïŒ ãš
ãããã®ãæãŸãããããçã®ç¯å²ã«æ°ŽçŽ ååå«
æéãããå Žåã«åœ¢æãããå å°é»éšæã¯ãå®é
é¢ã«ãããŠåªãããã®ãšããŠå åé©çšããåŸãã ããªãã¡ãå ã®ïœâïŒSibN1-bïŒcH1-cã®ïœããã³
ïœè¡šç€ºã§è¡ãã°ãïœãæãŸããã¯0.45ã0.99999ã
ãã奜é©ã«ã¯0.45ã0.99ãæé©ã«ã¯0.45ã0.9ã§ã
ããïœã奜ãŸããã¯0.6ã0.99ããã奜é©ã«ã¯0.65
ã0.98ãæé©ã«ã¯0.7ã0.95ã§ããã®ãæãŸããã 第äºã®å±€ïŒïŒïŒïŒïŒãïœâïŒSidN1-dïŒeïŒïŒšïŒ
ïŒ1-eã§æ§æãããå Žåã«ã¯ã第äºã®å±€ïŒïŒïŒ
ïŒïŒäžã«å«æãããçªçŽ ååã®å«æéãšããŠã¯ã
奜ãŸããã¯ãïŒÃ10-3ã60ååïŒ ããã奜é©ã«ã¯
ïŒã60ååïŒ ãæé©ã«ã¯10ã55ååïŒ ãšãããã®
ãæãŸãããã®ã§ãããããã«ãããã²ã³ååã®
å«æéãšããŠã¯ã奜ãŸããã¯ïŒã20ååïŒ ããã
奜é©ã«ã¯ïŒã18ååïŒ ãæé©ã«ã¯ïŒã15ååïŒ ãš
ãããã®ãæãŸãããããçã®ç¯å²ã«ããã²ã³å
åå«æéãããå Žåã«äœæãããå å°é»éšæã¯ã
å®éé¢ã«ãããŠå åé©çšããåŸããã®ã§ãããã
ãã«ãŸããå¿ èŠã«å¿ããŠå«æãããæ°ŽçŽ ååã®å«
æéãšããŠã¯ã奜ãŸããã¯19ååïŒ ä»¥äžããã奜
é©ã«ã¯13ååïŒ ä»¥äžãšãããã®ãæãŸãããã®ã§
ããã ããªãã¡ãå ã®ïœâïŒSidN1-dïŒeïŒïŒšïŒïŒžïŒ1-eã®
ïœããã³ïœ ã®è¡šç€ºã§è¡ãã°ïœã奜ãŸããã¯0.4ã
0.99999ããã奜é©ã«ã¯0.4ã0.99ãæé©ã«ã¯0.45
ã0.9ã§ãããïœ ã奜ãŸããã¯0.8ã0.99ããã奜
é©ã«ã¯0.82ã0.99ãæé©ã«ã¯0.85ã0.98ã§ããã
ãšãæãŸããã æ¬çºæã«ããã第äºã®å±€ïŒïŒïŒïŒïŒã®å±€åã®
ç¯å²ã¯ãæ¬çºæã®ç®çãå¹æçã«éæããããã®
éèŠãªå åã®äžã€ã§ããããã®å±€åã¯ãæ¬çºæã®
ç®çãå¹æçã«éæããããã«ææã®ç®çã«å¿ã
ãŠé©å®ææã«åŸã€ãŠæ±ºãããããããã«ããã®å±€
åã¯ã該局ïŒïŒïŒïŒïŒã«å«æãããçªçŽ ååã®
éã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®å±€åãšã®é¢ä¿ã«ãã
ãŠããåã ã®å±€é åã«èŠæ±ãããç¹æ§ã«å¿ããæ
æ©çãªé¢é£æ§ã®äžã«ææã«åŸã€ãŠé©å®æ±ºå®ããã
å¿ èŠããããæŽã«å ãåŸãã«ããã®å±€åã¯çç£æ§
ãéç£æ§ãå å³ããçµæžæ§ã®ç¹ã«ãããŠãèæ ®ã
ããã®ãæãŸããã æ¬çºæã«ããã第äºã®å±€ïŒïŒïŒïŒïŒã®å±€åãš
ããŠã¯ã奜ãŸããã¯0.003ã30ÎŒããã奜é©ã«ã¯
0.004ã20ÎŒãæé©ã«ã¯0.005ã10ÎŒãšãããã®ãæ
ãŸããã æ¬çºæã«ãããŠäœ¿çšãããæ¯æäœïŒïŒïŒãšããŠ
ã¯ãå°é»æ§ã§ãé»æ°çµ¶çžæ§ã§ãã€ãŠãè¯ããå°é»
æ§æ¯æäœãšããŠã¯ãäŸãã°ãNiCrãã¹ãã³ã¬ã¹ã
AlãCrãMoãAuãNbãTaããTiãPtãPd
çã®éå±åã¯ããçã®åéãæããããã é»æ°çµ¶çžæ§æ¯æäœãšããŠã¯ãããªãšã¹ãã«ãã
ãªãšãã¬ã³ãããªã«ãŒãããŒããã»ã«ããŒã¹ãã¢
ã»ããŒããããªãããã¬ã³ãããªå¡©åããã«ãã
ãªå¡©åãããªãã³ãããªã¹ãã¬ã³ãããªã¢ããç
ã®åææš¹èã®ãã€ã«ã åã¯ã·ãŒããã¬ã©ã¹ãã»ã©
ããã¯ã¹ãçŽçãé垞䜿çšããããããçã®é»æ°
絶çžæ§æ¯æäœã¯ã奜é©ã«ã¯å°ãªããšããã®äžæ¹ã®
è¡šé¢ãå°é»åŠçããã該å°é»åŠçãããè¡šé¢åŽã«
ä»ã®å±€ãèšããããã®ãæãŸããã äŸãã°ãã¬ã©ã¹ã§ããã°ããã®è¡šé¢ã«ã
NiCrããAlãCrãMoãAuãIrãNbãTaãã
TiãPtãPdãIn2O2ãSnO2ãITOïŒIn2O3ïŒSnO2ïŒ
çããæãèèãèšããããšã«ãã€ãŠå°é»æ§ãä»
äžãããæãã¯ããªãšã¹ãã«ãã€ã«ã çã®åææš¹
èãã€ã«ã ã§ããã°ãNiCrãAlãAgãPbãZnã
NiãAuãCrãMoãIrãNbãTaããTiãPt
çã®éå±ã®èèãç空èžçãé»åããŒã èžçãã¹
ããã¿ãªã³ã°çã§ãã®è¡šé¢ã«èšããåã¯åèšéå±
ã§ãã®è¡šé¢ãã©ãããŒãåŠçããŠããã®è¡šé¢ã«å°
é»æ§ãä»äžãããã ççŽ ååïŒïŒïŒã®åœ¢ç¶ãšããŠã¯ãåçç¶ããã«
ãç¶ãæ¿ç¶çä»»æã®åœ¢ç¶ãšããŠåŸãææã«ãã€
ãŠããã®åœ¢ç¶ã¯æ±ºå®ãããããäŸãã°ã第ïŒå³ã®
å å°é»éšæïŒïŒïŒãé»ååççšå圢æéšæãšããŠ
䜿çšããã®ã§ããã°é£ç¶é«éè€åã®å Žåã«ã¯ãç¡
端ãã«ãç¶åã¯åçç¶ãšããã®ãæãŸãããæ¯æ
äœïŒïŒïŒã®åãã¯ãææéãã®å å°é»éšæã圢æ
ãããæ§ã«é©å®æ±ºå®ãããããå å°é»éšæãšããŠ
å¯ææ§ãèŠæ±ãããå Žåã«ã¯ãæ¯æäœãšããŠã®æ©
èœãå åçºæ®ãããç¯å²å ã§ããã°å¯èœãªéãè
ãããããèä¹ãããã®æ§ãªå Žåæ¯æäœã®è£œé äž
åã³åæ±ãäžãæ©æ¢°ç匷床çã®ç¹ãããæ¯æäœïŒ
ïŒïŒã®åãã¯ã奜ãŸããã¯ã10Ό以äžãšãããã 次ã«æ¬çºæã®å å°é»éšæã®è£œé æ¹æ³ã®äžäŸã®æŠ
ç¥ã«ã€ããŠèª¬æããã 第ïŒïŒå³ã«å å°é»éšæã®è£œé è£ çœ®ã®äžäŸã瀺
ãã å³äžãïŒïŒïŒïŒãïŒïŒïŒïŒã§ç€ºãã¬ã¹ãã³ãã«
ã¯ãæ¬çºæã®å å°é»éšæã圢æããããã®åæã¬
ã¹ãå¯å°ãããŠããããã®ïŒäŸãšããŠããšãã°ïŒ
ïŒïŒïŒã¯ãHeã§çšéãããSiH4ã¬ã¹ïŒçŽåºŠ
99.999ïŒ ã以äžSiH4ïŒHeãšç¥ããïŒãã³ããïŒïŒ
ïŒïŒã¯Heã§çšéãããGeH4ã¬ã¹ïŒçŽåºŠ99.999
ïŒ ã以äžGeH4ïŒHeãšç¥ããïŒãã³ããïŒïŒïŒïŒ
ã¯C2H4ã¬ã¹ïŒçŽåºŠ99.99ïŒ ïŒãã³ããïŒïŒïŒïŒã¯
Heã¬ã¹ïŒçŽåºŠ99.999ïŒ ïŒãã³ããïŒïŒïŒïŒã¯H2
ã¬ã¹ïŒçŽåºŠ99.999ïŒ ïŒãã³ãã§ããã ãããã®ã¬ã¹ãåå¿å®€ïŒïŒïŒïŒã«æµå ¥ãããã«
ã¯ã¬ã¹ãã³ãïŒïŒïŒïŒãïŒïŒïŒïŒã®ãã«ãïŒïŒïŒ
ïŒãïŒïŒïŒïŒããªãŒã¯ãã«ãïŒïŒïŒïŒãéããã
ãŠããããšã確èªããåãæµå ¥ãã«ãïŒïŒïŒïŒã
ïŒïŒïŒïŒãæµåºãã«ãïŒïŒïŒïŒãïŒïŒïŒïŒãè£å©
ãã«ãïŒïŒïŒïŒïŒïŒïŒïŒïŒãéãããŠããããšã
確èªããŠãå ãã¡ã€ã³ãã«ãïŒïŒïŒïŒãéããŠå
å¿å®€ïŒïŒïŒïŒãåã³åã¬ã¹é 管å ãææ°ããã次
ã«ç空èšïŒïŒïŒïŒã®èªã¿ãçŽïŒÃ10-6Torrã«ãª
ã€ãæç¹ã§è£å©ãã«ãïŒïŒïŒïŒïŒïŒïŒïŒïŒãæµåº
ãã«ãïŒïŒïŒïŒãïŒïŒïŒïŒãéããã 次ã«æ¯æäœãšããŠã®ã·ãªã³ããŒç¶åºäœïŒïŒïŒïŒ
äžã«å å容局ã圢æããå Žåã®ïŒäŸãããããšã
ã¬ã¹ãã³ãïŒïŒïŒïŒããã®SiH4ïŒHeã¬ã¹ãã¬ã¹
ãã³ãïŒïŒïŒïŒããã®GeH4ïŒHeã¬ã¹ãã¬ã¹ãã³
ãïŒïŒïŒïŒããã®C2H4ã¬ã¹ãããã«ãïŒïŒïŒïŒïŒ
ïŒïŒïŒïŒïŒïŒïŒïŒïŒãéããŠåºå£å§ã²ãŒãžïŒïŒïŒ
ïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒã®å§åãïŒKgïŒcm2ã«èª¿æŽ
ããæµå ¥ãã«ãïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒã
åŸã ã«éããããšã«ãã€ãŠããã¹ããã³ã³ãããŒ
ã©ïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒå ã«å€«ã æµå ¥ã
ãããåŒãç¶ããŠæµåºãã«ãïŒïŒïŒïŒïŒïŒïŒïŒ
ïŒïŒïŒïŒïŒïŒãè£å©ãã«ãïŒïŒïŒïŒãåŸã ã«éã
ãŠå€«ã ã®ã¬ã¹ãåå¿å®€ïŒïŒïŒïŒå ã«æµå ¥ãããã
ãã®ãšãã®SiH4ïŒHeã¬ã¹æµéãšGeH4ïŒHeã¬ã¹
æµéãšC2H4ã¬ã¹æµéãšã®æ¯ãææã®å€ã«ãªãã
ãã«æµåºãã«ãïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒã
調æŽããåãåå¿å®€ïŒïŒïŒïŒå ã®å§åãææã®å€
ã«ãªãããã«ç空èšïŒïŒïŒïŒã®èªã¿ãèŠãªããã¡
ã€ã³ãã«ãïŒïŒïŒïŒã®éå£ã調æŽããããããŠåº
äœïŒïŒïŒïŒã®æž©åºŠãå ç±ããŒã¿ãŒïŒïŒïŒïŒã«ãã
50ã400âã®ç¯å²ã®æž©åºŠã«èšå®ãããŠããããšã
確èªããåŸãé»æºïŒïŒïŒïŒãææã®é»åã«èšå®ã
ãŠåå¿å®€ïŒïŒïŒïŒå ã«ã°ããŒæŸé»ãçèµ·ãããå
æã«ãããããèšèšãããå€åçæ²ç·ã«åŸã€ãŠ
GeH4ïŒHeã¬ã¹ããã³æåãããã¯å€éšé§åã¢ãŒ
ã¿çã®æ¹æ³ãé©çšããŠãã«ãïŒïŒïŒïŒãïŒïŒïŒïŒ
ã®éå£ãé©å®å€åãããæäœãè¡ã€ãŠC2H4ã¬ã¹
ã®æµéã調æŽãããã€ãŠåœ¢æãããå±€äžã«å«æã
ããã²ã«ãããŠã ååããã³ççŽ ååã®ååžæ¿åºŠ
ïŒïŒ£ïŒãå¶åŸ¡ããã äžèšã®æ§ã«ããŠãæææéã°ããŒæŸé»ãç¶æã
ãŠãææå±€åã«ãåºäœïŒïŒïŒïŒäžã«ç¬¬äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã圢æãããææå±€åã«ç¬¬äžã®å±€é
åïŒïŒ§ïŒïŒïŒïŒã圢æããã段éã«æŒããŠãæµåº
ãã«ãïŒïŒïŒïŒãå®å šã«éãããšãåã³å¿ èŠã«å¿
ããŠæŸé»æ¡ä»¶ãå€ãã以å€ã¯ãåæ§ãªæ¡ä»¶ãšæé
ã«åŸã€ãŠæææéã°ããŒæŸé»ãç¶æããããšã§ç¬¬
äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«ã²ã«ãããŠã ååã®
å®è³ªçã«å«æãããªã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒ
ã圢æããããšãåºæ¥ãã 第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒããã³ç¬¬äºã®å±€é å
ïŒïŒ³ïŒïŒïŒïŒäžã«ãäŒå°æ§ãæ¯é ããç©è³ªïŒ€ãå«
æãããã«ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒããã³
第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã®åœ¢æã®éã«äŸãã°
B2H6ãPH3çã®ã¬ã¹ãå ç©å®€ïŒïŒïŒïŒäžã«å°å ¥
ããã¬ã¹ã«å ããŠããã°è¯ãã ããããŠãåºäœïŒïŒïŒïŒäžã«ç¬¬äžã®å±€ïŒïŒ©ïŒïŒ
ïŒïŒã圢æãããã äžèšã®æ§ã«ããŠææå±€åã«åœ¢æããã第äžã®å±€
ïŒïŒ©ïŒïŒïŒïŒäžã«ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã圢æã
ãã«ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®åœ¢æã®éãšåæ§
ãªãã«ãæäœã«ãã€ãŠãäŸãã°SiH4ã¬ã¹ãNH3
ã¬ã¹ã®å€«ã ãå¿ èŠã«å¿ããŠHeçã®çšéã¬ã¹ã§çš
éããŠåå¿å®€ïŒïŒïŒïŒå ã«äŸçµŠããææã®æ¡ä»¶ã«
åŸã€ãŠãã°ããŒæŸé»ãçèµ·ãããã°ããã 第äºã®å±€ïŒïŒïŒïŒïŒäžã«ããã²ã³ååãå«æ
ãããã«ã¯ãäŸãã°SiF4ã¬ã¹ãšNH3ã¬ã¹ãæã
ã¯ããã«SiH4ã¬ã¹ãå ããŠäžèšãšåæ§ã«ããŠç¬¬
äºã®å±€ïŒïŒïŒïŒïŒã圢æããã°ããã 倫ã ã®å±€ã圢æããéã«å¿ èŠãªã¬ã¹ã®æµåºãã«
ã以å€ã®æµåºãã«ãã¯å šãŠéããããšã¯èšããŸã§
ããªããå倫ã ã®å±€ã圢æããéãåå±€ã®åœ¢æã«
䜿çšããã¬ã¹ãåå¿å®€ïŒïŒïŒïŒå ãæµåºãã«ãïŒ
ïŒïŒïŒãïŒïŒïŒïŒããåå¿å®€ïŒïŒïŒïŒå ã«è³ãã¬
ã¹é 管å ã«æ®çããããšãé¿ããããã«ãæµåºã
ã«ãïŒïŒïŒïŒãïŒïŒïŒïŒãéããè£å©ãã«ãïŒïŒ
ïŒïŒïŒïŒïŒïŒïŒãéããŠã¡ã€ã³ãã«ãïŒïŒïŒïŒã
å šéããŠç³»å ãäžæŠé«ç空ã«ææ°ããæäœãå¿ èŠ
ã«å¿ããŠè¡ãã 第äºã®å±€ïŒïŒïŒïŒïŒäžã«å«æãããçªçŽ åå
ã®éã¯äŸãã°ãã°ããŒæŸé»ã«ããå Žåã¯SiH4ã¬
ã¹ããã³NH3ã¬ã¹ã®åå¿å®€ïŒïŒïŒïŒå ã«å°å ¥ã
ããæµéæ¯ãææã«åŸã€ãŠå€ããããæãã¯ãã¹
ããã¿ãªã³ã°ã§å±€åœ¢æããå Žåã«ã¯ãã¿ãŒã²ãã
ã圢æããéã·ãªã³ã³ãŠãšããšçªåã·ãªã³ã³ãŠãš
ãã®ã¹ããã¿é¢ç©æ¯çãå€ããããåã¯ã·ãªã³ã³
ç²æ«ãšçªåã·ãªã³ã³ç²æ«ã®æ··åæ¯çãå€ããŠã¿ãŒ
ã²ãããæåããããšã«ãã€ãŠææã«å¿ããŠå¶åŸ¡
ããããšãåºæ¥ãã第äºã®å±€ïŒïŒïŒïŒïŒäžã«å«
æãããã·ãªã³ã³ååã®éã¯ãããã²ã³ååå°å ¥
çšã®åæã¬ã¹ãäŸãã°SiF4ã¬ã¹ãåå¿å®€ïŒïŒïŒïŒ
å ã«å°å ¥ãããéã®æµéã調æŽããããšã«ãã€ãŠ
æãããã åã局圢æãè¡ã€ãŠããéã¯å±€åœ¢æã®åäžåã
èšãããåºäœïŒïŒïŒïŒã¯ã¢ãŒã¿ïŒïŒïŒïŒã«ããäž
å®é床ã§å転ãããŠããã®ãæãŸããã 以äžå®æœäŸã«ã€ããŠèª¬æããã å®æœäŸ ïŒ ç¬¬ïŒïŒå³ã«ç€ºãã補é è£ çœ®ã«ãããæ¯æäœãšã
ãŠã®ã·ãªã³ããŒç¶ã®Alåºäœäžã«ç¬¬ïŒè¡šã«ç€ºãæ¡
件ã§é»ååççšå圢æéšæãšããŠã®è©ŠæïŒè©ŠæNo.
11âïŒã17âïŒïŒã倫ã äœæããïŒç¬¬ïŒè¡šïŒã åè©Šæã«æŒããã²ã«ãããŠã ååã®å«æååžæ¿
床ã¯ç¬¬ïŒïŒå³ã«ãåãççŽ ååã®å«æååžæ¿åºŠã¯
第ïŒïŒå³ã«ç€ºãããã ããããŠåŸãããåè©Šæãã垯é»é²å å®éšè£ 眮
ã«èšçœ®ã5.0KVã§0.3ç§ïŒsecïŒéã³ãã垯é»ã
è¡ããçŽã¡ã«å åãç §å°ãããå åã¯ã¿ã³ã°ã¹ã
ã³ã©ã³ãå æºãçšãã2luxã»secã®å éãééå
ã®ãã¹ããã€ãŒããéããŠç §å°ãããã ãã®åŸçŽã¡ã«ãè·é»æ§ã®çŸåå€ïŒãããŒãšã
ã€ãªã¢ãŒãå«ãïŒã«ãã€ãŠè©ŠæïŒå圢æéšæïŒè¡š
é¢ãã«ã¹ã±ãŒãããããšã«ãã€ãŠãåœè©²è©ŠæïŒå
圢æéšæïŒè¡šé¢äžã«è¯å¥œãªãããŒç»åãåŸããè©Š
æäžã®ãããŒç»åãã5.0KVã®ã³ãã垯é»ã§è»¢
åçŽäžã«è»¢åããæããããã®è©Šæã«æŒããŠã解
ååã«åªããé調åçŸæ§ã®ããé®®æãªé«æ¿åºŠã®ç»
åãåŸãããã äžèšã«æŒããŠãå æºãšããŠã¿ã³ã°ã¹ãã³ã©ã³ã
ã®ä»£ãã«810nmã®GaAsç³»åå°äœã¬ãŒã¶ïŒ10mWïŒ
ãçšããŠãéé»åã®åœ¢æãè¡ã€ã以å€ã¯ãåæ§ã®
ãããŒç»å圢ææ¡ä»¶ã«ããŠãåè©Šæã«å°±ããŠãã
ãŒè»¢åç»åã®ç»è³ªè©äŸ¡ãè¡ã€ããšããããããã®
è©Šæã®å Žåãã解ååã«åªããé調åçŸæ§ã®è¯ã
é®®æãªé«åäœã®ç»åãåŸãããã å®æœäŸ ïŒ ç¬¬ïŒïŒå³ã«ç€ºãã補é è£ çœ®ã«ããã·ãªã³ããŒç¶
ã®Alåºäœäžã«ç¬¬ïŒè¡šã«ç€ºãæ¡ä»¶ã§é»ååççšå
圢æéšæãšããŠã®è©ŠæïŒè©ŠæNo.21âïŒã27âïŒïŒ
ãããããäœæããïŒç¬¬ïŒè¡šïŒã åè©Šæã«ãããã²ã«ãããŠã ååã®å«æååžæ¿
床ã¯ç¬¬ïŒïŒå³ã«ããŸããççŽ ååã®å«æååžæ¿åºŠ
ã¯ç¬¬ïŒïŒå³ã«ç€ºãããã ããçã®è©Šæã®ããããã«å°±ãŠãå®æœäŸïŒãšå
æ§ã®ç»åè©äŸ¡ãã¹ããè¡ã€ããšããããããã®è©Š
æãé«å質ã®ãããŒè»¢åç»åãäžããããŸããå
è©Šæã«å°±ãŠ38âã80ïŒ RHã®ç°å¢ã«ãããŠ20äžå
ã®ç¹°ãè¿ã䜿çšãã¹ããè¡ã€ããšããããããã®
è©Šæãç»åå質ã®äœäžã¯èŠãããªãã€ãã å®æœäŸ ïŒ ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®äœææ¡ä»¶ã第ïŒè¡šã«ç€º
ãåæ¡ä»¶ã«ãã以å€ã¯ãå®æœäŸïŒã®è©ŠæNo.11â
ïŒã12âïŒã13âïŒãšåæ§ã®æ¡ä»¶ã®æé ã«åŸã€ãŠ
é»ååççšå圢æéšæã®ããããïŒNo.11âïŒâïŒ
ã11âïŒâïŒã12âïŒâïŒã12âïŒâïŒã13âïŒ
âïŒã13âïŒâïŒã®24åã®è©ŠæïŒãäœæãããã
ãããŠåŸãããåé»ååççšå圢æéšæã®ããã
ããåå¥ã«è€åè£ çœ®ã«èšçœ®ããåå®æœäŸã«èšèŒã
ãã®ãšåæ§ã®æ¡ä»¶ã«ãã€ãŠãåå®æœäŸã«å¯Ÿå¿ãã
é»ååççšå圢æéšæã®ããããã«ã€ããŠã転å
ç»åã®ç·åç»è³ªè©äŸ¡ãšç¹°ãè¿ãé£ç¶äœ¿çšã«ããè
ä¹ æ§ã®è©äŸ¡ãè¡ã€ãã åè©Šæã®è»¢åç»åã®ç·åç»è³ªè©äŸ¡ãšãç¹°ãè¿ã
é£ç¶äœ¿çšã«ããèä¹ æ§ã®è©äŸ¡ã®çµæã第ïŒè¡šã«ç€º
ãã å®æœäŸ ïŒ ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®åœ¢æåŸãã·ãªã³ã³ãŠãš
ããšçªåã·ãªã³ã³ã®ã¿ãŒã²ããé¢ç©æ¯ãå€ããŠã
å±€ïŒïŒã«ãããã·ãªã³ã³ååãšçªçŽ ååã®å«æ
éæ¯ãå€åããã以å€ã¯ãå®æœäŸïŒã®è©ŠæNo.11â
ïŒãšå šãåæ§ãªæ¹æ³ã«ãã€ãŠå圢æéšæã®ããã
ããäœæãããããããŠåŸãããå圢æéšæã®ã
ãããã«ã€ããå®æœäŸïŒã«è¿°ã¹ãåŠããäœåãã¯
ãªãŒãã³ã°ã®å·¥çšãçŽïŒäžåç¹°ãè¿ããåŸãç»å
è©äŸ¡ãè¡ã€ããšãã第ïŒè¡šã®åŠãçµæãåŸãã å®æœäŸ ïŒ ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®å±€ã®åœ¢ææãSiH4ã¬
ã¹ãšNH3ã¬ã¹ã®æµéæ¯ãå€ããŠãå±€ïŒïŒã«ã
ããã·ãªã³ã³ååãšçªçŽ ååã®å«æéæ¯ãå€åã
ãã以å€ã¯å®æœäŸïŒè©ŠæNo.12âïŒãšå šãåæ§ãªæ¹
æ³ã«ãã€ãŠå圢æéšæã®ãããããäœæããã ããããŠåŸãããåå圢æéšæã«ã€ããå®æœäŸ
ïŒã«è¿°ã¹ãåŠãæ¹æ³ã§è»¢åãŸã§ã®å·¥çšãçŽïŒäžå
ç¹°ãè¿ããåŸãç»åè©äŸ¡ãè¡ã€ããšããã第ïŒè¡š
ã®åŠãçµæãåŸãã å®æœäŸ ïŒ ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®å±€ã®åœ¢ææãSiH4ã¬
ã¹ãSiF4ã¬ã¹ãNH3ã¬ã¹ã®æµéæ¯ãå€ããŠãå±€
ïŒïŒã«ãããã·ãªã³ã³ååãšçªçŽ ååã®å«æé
æ¯ãå€åããã以å€ã¯ãå®æœäŸïŒã®è©ŠæNo.13âïŒ
ãšå šãåæ§ãªæ¹æ³ã«ãã€ãŠå圢æéšæã®ãããã
ãäœæãããããããŠåŸãããå圢æéšæã®ãã
ããã«ã€ããå®æœäŸïŒã«è¿°ã¹ãåŠãäœåãçŸåã
ã¯ãªãŒãã³ã°ã®å·¥çšãçŽïŒäžåç¹°ãè¿ããåŸãç»
åè©äŸ¡ãè¡ã€ããšããã第ïŒè¡šã®åŠãçµæãåŸ
ãã å®æœäŸ ïŒ ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®å±€åãå€ãã以å€ã¯ã
å®æœäŸïŒã®è©ŠæNo.11âïŒãšå šãåæ§ãªæ¹æ³ã«ãã€
ãŠå圢æéšæã®ãããããäœæãããå®æœäŸïŒã«
è¿°ã¹ãåŠãäœåãçŸåãã¯ãªãŒãã³ã°ã®å·¥çšãç¹°
ãè¿ã第10è¡šã®çµæãåŸãã
ç·ãå¯èŠå ç·ãèµ€å€å ç·ãç·ãγç·çã瀺ãïŒ
ã®æ§ãªé»ç£æ³¢ã«æåæ§ã®ããé»ååççšå å°é»éš
æïŒä»¥äžãåã«å å°é»éšæãšããïŒã«é¢ããã åºäœæ®åè£ çœ®ãæãã¯å圢æåéã«ãããé»å
åççšå圢æéšæãåçš¿èªåè£ çœ®ã«ãããå å°é»
å±€ã圢æããå å°é»ææãšããŠã¯ãé«æ床ã§ã
SNæ¯ïŒå é»æµïŒIpïŒïŒæé»æµïŒIdïŒããé«ããç §
å°ããé»ç£æ³¢ã®ã¹ãã¯ãã«ç¹æ§ã«ãããã³ã°ãã
åžåã¹ãã¯ãã«ç¹æ§ãæããããšãå å¿çæ§ãé
ããææã®ææµæå€ãæããããšã䜿çšæã«ãã
ãŠäººäœã«å¯ŸããŠç¡å ¬å®³ã§ããããšãæŽã«ã¯åºäœæ®
åè£ çœ®ã«ãããŠã¯ãæ®åãæå®æéå ã«å®¹æã«åŠ
çããããšãã§ããããšçã®ç¹æ§ãèŠæ±ãããã
æ®ã«ãäºåæ©ãšããŠãªãã€ã¹ã§äœ¿çšãããé»åå
çè£ çœ®å ã«çµèŸŒãŸããé»ååççšå圢æéšæã®å Ž
åã«ã¯ãäžèšã®äœ¿çšæã«ãããç¡å ¬å®³æ§ã¯éèŠãª
ç¹ã§ããã ãã®æ§ãªç¹ã«ç«èããŠæè¿æ³šç®ãããŠããå å°
é»æã«ã¢ã¢ã«ãã¢ã¹ã·ãªã³ã³ïŒä»¥åŸïœâSiãšè¡šèš
ãïŒããããäŸãã°ãç¬åœå ¬é第2746967å·å ¬å ±ã
å第2855718å·å ¬å ±ã«ã¯é»ååççšå圢æéšæãš
ããŠãç¬åœå ¬é第2933411å·å ¬å ±ã«ã¯å é»å€æèª
åè£ çœ®ãžã®å¿çšãèšèŒãããŠããã èä¹ããåŸæ¥ã®ïœâSiã§æ§æãããå å°é»å±€ã
æããå å°é»éšæã¯ãææµæå€ãå æ床ãå å¿ç
æ§çã®é»æ°çãå åŠçãå å°é»çç¹æ§ãåã³è湿
æ§çã®äœ¿çšç°å¢ç¹æ§ã®ç¹ãæŽã«ã¯çµæçå®å®æ§ã®
ç¹ã«ãããŠãç·åçãªç¹æ§åäžãå³ãå¿ èŠããã
ãšããæŽã«æ¹è¯ãããå¯ãç¹ãåããã®ãå®æ ã§
ããã äŸãã°ãé»ååççšå圢æéšæã«é©çšããå Žå
ã«ãé«å æ床åãé«ææµæåãåæã«å³ãããšã
ããšãåŸæ¥ã«ãããŠã¯ããã®äœ¿çšæã«ãããŠæ®ç
é»äœãæ®ãå Žåã床ã 芳枬ããããã®çš®ã®å å°é»
éšæã¯é·æéç¹°è¿ã䜿çšãç¶ãããšãç¹°è¿ã䜿çš
ã«ããç²åŽã®èç©ãèµ·ã€ãŠãæ®åãçããæè¬ãŽ
ãŒã¹ãçŸè±¡ãçºããæ§ã«ãªãæãã¯ãé«éã§ç¹°è¿
ã䜿çšãããšå¿çæ§ã次第ã«äœäžããçã®äžéœå
ãªç¹ãçããå Žåãå°ãªããªãã€ãã æŽã«ã¯ãïœâSiã¯å¯èŠå é åã®çæ³¢é·åŽã«èŒã¹
ãŠãé·æ³¢é·åŽã®æ³¢é·é åãããé·ãæ³¢é·é åã®åž
åä¿æ°ãæ¯èŒçå°ãããçŸåšå®çšåãããŠããå
å°äœã¬ãŒã¶ãšã®ãããã³ã°ã«æŒããŠãé垞䜿çšã
ããŠããããã²ã³ã©ã³ãããå ç¯ãå æºãšããå Ž
åãé·æ³¢é·åŽã®å ãæå¹ã«äœ¿çšãåŸãŠããªããšã
ãç¹ã«æŒããŠã倫ã æ¹è¯ãããäœå°ãæ®ã€ãŠã
ãã åãå¥ã«ã¯ãç §å°ãããå ãå å°é»å±€äžã«æŒã
ãŠãå ååžåãããã«ãæ¯æäœã«å°éããå ã®é
ãå€ããªããšãæ¯æäœèªäœãå å°é»å±€ãééããŠ
æ¥ãå ã«å¯Ÿããåå°çãé«ãå Žåã«ã¯ãå å°é»å±€
å ã«æŒããŠå€éåå°ã«ããå¹²æžãèµ·ã€ãŠãç»åã®
ããã±ããçããäžèŠå ãšãªãã ãã®åœ±é¿ã¯ã解å床ãäžããçºã«ãç §å°ã¹ãã
ããå°ããããçšå€§ãããªããæ®ã«åå°äœã¬ãŒã¶
ãå æºãšããå Žåã«ã¯å€§ããªåé¡ãšãªã€ãŠããã æŽã«ãïœâSiææã§å å°é»å±€ãæ§æããå Žåã«
ã¯ããã®é»æ°çãå å°é»çç¹æ§ã®æ¹è¯ãå³ããã
ã«ãæ°ŽçŽ ååæãã¯åŒçŽ ååãå¡©çŽ ååçã®ãã
ã²ã³ååãåã³é»æ°äŒå°åã®å¶åŸ¡ã®ããã« çŽ å
åãçååçãæãã¯ãã®ä»ã®ç¹æ§æ¹è¯ã®ããã«
ä»ã®ååããåã æ§æååãšããŠå å°é»å±€äžã«å«
æãããããããçã®æ§æååã®å«æã®ä»æ¹åŠäœ
ã«ãã€ãŠã¯ã圢æããå±€ã®é»æ°çæãã¯å å°é»ç
ç¹æ§ã«åé¡ãçããå Žåãããã å³ã¡ãäŸãã°ã圢æããå å°é»å±€äžã«å ç §å°ã«
ãã€ãŠçºçããããªããã€ãªã¢ã®è©²å±€äžã§ã®å¯¿åœ
ãå åã§ãªãããšãæãã¯æéšã«ãããŠãæ¯æäœ
åŽããã®é»è·ã®æ³šå ¥ã®é»æ¢ãå åã§ãªãããšçã
çããå Žåãå°ãªããªãã æŽã«ã¯ãå±€åãåæ°ÎŒä»¥äžã«ãªããšå±€åœ¢æçšã®
ç空å ç©å®€ããåãåºããåŸã空æ°äžã§ã®æŸçœ®æ
éã®çµéãšå ±ã«ãæ¯æäœè¡šé¢ããã®å±€ã®æµ®ããå¥
é¢ãæãã¯å±€ã«äºè£ãçããçã®çŸè±¡ãåŒèµ·ãå
ã¡ã§ãã€ãããã®çŸè±¡ã¯ãæ®ã«æ¯æäœãéåžžãé»
ååçåéã«æŒããŠäœ¿çšãããŠãããã©ã ç¶æ¯æ
äœã®å Žåã«å€ãèµ·ããçãçµæçå®å®æ§ã®ç¹ã«æŒ
ããŠè§£æ±ºãããå¯ãç¹ãããã åŸã€ãŠïœâSiææãã®ãã®ã®ç¹æ§æ¹è¯ãå³ãã
ãäžæ¹ã§å å°é»éšæãèšèšããéã«ãäžèšããæ§
ãªåé¡ã®ç·ãŠã解決ãããæ§ã«å·¥å€«ãããå¿ èŠã
ããã æ¬çºæã¯äžèšã®è«žç¹ã«éã¿æããããã®ã§ãïœ
âSiã«å°±ãŠé»ååççšå圢æéšæãåºäœæ®åè£
眮ãèªåè£ çœ®çã«äœ¿çšãããå å°é»éšæãšããŠã®
é©çšæ§ãšãã®å¿çšæ§ãšãã芳ç¹ããç·æ¬çã«éæ
ç 究æ€èšãç¶ããçµæãã·ãªã³ã³ååãšã²ã«ãã
ãŠã ååãšãæ¯äœãšããæ°ŽçŽ åååã¯ããã²ã³å
åã®ããããäžæ¹ãå°ãªããšãå«æããã¢ã¢ã«ã
ã¢ã¹ææãæè¬æ°ŽçŽ åã¢ã¢ã«ãã¢ã¹ã·ãªã³ã³ã²ã«
ãããŠã ãããã²ã³åã¢ã¢ã«ãã¢ã¹ã·ãªã³ã³ã²ã«
ãããŠã ãæãã¯ããã²ã³å«ææ°ŽçŽ åã¢ã¢ã«ãã¢
ã¹ã·ãªã³ã³ã²ã«ãããŠã ã以åŸããçã®ç·ç§°çè¡š
èšãšããŠãïœâSiGeïŒïŒšãïŒãã䜿çšãããã
ãæ§æãããå å°é»æ§ã瀺ãå å容éãæããå
å°é»éšæã®æ§æã以åŸã«èª¬æãããæ§ãªç¹å®åã®
äžã«èšèšãããŠäœæãããå å°é»éšæã¯å®çšäžè
ããåªããç¹æ§ã瀺ãã°ããã§ãªããåŸæ¥ã®å å°
é»éšæãšèŒã¹ãŠã¿ãŠãããããç¹ã«ãããŠåé§ã
ãŠããããšãæ®ã«é»ååççšã®å å°é»éšæãšããŠ
èããåªããç¹æ§ãæããŠããããšåã³é·æ³¢é·åŽ
ã«æŒããåžåã¹ãã¯ãã«ç¹æ§ã«åªããŠããããšã
èŠåºããç¹ã«æ¬çºæã¯åºã¥ããŠããã æ¬çºæã¯é»æ°çãå åŠçãå å°é»çç¹æ§ãåžžæ
å®å®ããŠããŠãæ®ãã©äœ¿çšç°å¢ã«å¶éãåããªã
å šç°å¢åã§ãããé·æ³¢é·åŽã®å æ床ç¹æ§ã«åªãã
ãšå ±ã«èå ç²åŽã«èããé·ããç¹°è¿ã䜿çšã«éã
ãŠãå£åçŸè±¡ãèµ·ãããæ®çé»äœãå šãåã¯æ®ã
ã©èŠ³æž¬ãããªãå å°é»éšæãæäŸããããšãäž»ã
ãç®çãšããã æ¬çºæã®ä»ã®ç®çã¯å šå¯èŠå åã«æŒããŠå æ床
ãé«ããæ®ã«åå°äœã¬ãŒã¶ãšã®ãããã³ã°ã«åª
ããäžã€å å¿çã®éãå å°é»éšæãæäŸããããš
ã§ããã æ¬çºæã®ããã«ä»ã®ç®çã¯ãæ¯æäœäžã«èšãã
ããå±€ãšæ¯æäœãšã®éãç©å±€ãããå±€ã®åå±€éã«
æŒããå¯çæ§ã«åªããæ§é é åçã«ã¡å¯ã§å®å®ç
ã§ãããå±€å質ã®é«ãå å°é»éšæãæäŸããããš
ã§ããã æ¬çºæã®ããã«ä»ã®ç®çã¯ãé»ååççšã®å圢
æéšæãšããŠé©çšãããå Žåãéåžžã®é»ååçæ³
ã極ããŠæå¹ã«é©çšããåŸãçšåºŠã«ãéé»å圢æ
ã®çºã®åž¯é»åŠçã®éã®é»è·ä¿æèœãå åãããäž
ã€å€æ¹¿é°å²æ°äžã§ããã®ç¹æ§ã®äœäžãæ®ãã©èŠ³æž¬
ãããªãåªããé»ååçç¹æ§ãæããå å°é»éšæ
ãæäŸããããšã§ããã æ¬çºæã®ããã«ä»ã®ç®çã¯ãæ¿åºŠãé«ããããŒ
ãããŒã³ãé®®æã«åºãŠäžã€è§£å床ã®é«ããé«å質
ç»åãåŸãäºã容æã«åºæ¥ãé»ååççšã®å å°é»
éšæãæäŸããããšã§ããã æ¬çºæã®ããã«ä»ã®ç®çã¯ãé«å æ床æ§ãé«
SNæ¯ç¹æ§åã³æ¯æäœãšã®éã«è¯å¥œãªé»æ°çæ¥è§Š
æ§ãæããå å°é»éšæãæäŸããããšã§ããã æ¬çºæã¯é»ååççšå å°é»éšæçšã®æ¯æäœãšã 該æ¯æäœäžã«èšããããã·ãªã³ã³ååãšãã·ãª
ã³ã³ååãšã®åã«å¯ŸããŠïŒã10Ã105ååppmã®
ã²ã«ãããŠã ååãšãå«ãéæ¶è³ªææã§æ§æãã
ãå±€å30â«ã50ÎŒã®ç¬¬äžã®å±€é åïŒïŒ§ïŒããã³è©²
第äžã®å±€é åïŒïŒ§ïŒäžã«èšããããã·ãªã³ã³åå
ãå«ãïŒã²ã«ãããŠã ååãå«ãŸãªãïŒéæ¶è³ªæ
æã§æ§æãããå±€å0.5ã90ÎŒã®ç¬¬äºã®å±€é å
ïŒïŒ³ïŒãæããå±€åïŒã100ÎŒã®å å°é»æ§ã瀺ã第
äžã®å±€ããªãã³ã«è©²ç¬¬äžã®å±€äžã«èšããããã·ãª
ã³ã³ååãšïŒÃ10-3ã60ååïŒ ã®çªçŽ ååãšãå«
ãéæ¶è³ªææã§æ§æãããå±€å0.003ã30ÎŒã®ç¬¬äº
ã®å±€ãããªãå å容éãšãã§æ§æãããé»ååç
çšå å°é»éšæã§ãã€ãŠã åèšç¬¬äžã®å±€ã«ã¯ãã·ãªã³ã³ååãšã²ã«ãããŠ
ã ååãšççŽ ååãšã®åã«å¯ŸããŠ0.001ã50åå
ïŒ ã®ççŽ ååãå«æãããåœè©²ççŽ ååã®å±€åæ¹
åã«ãããæ¿åºŠååžã¯æ»ããã§ããã€è©²ç¬¬äžã®å±€
ã®æ¯æäœåŽãŸãã¯åèšç¬¬äºã®å±€ãšã®çé¢åŽããå±€
åã§5Ό以å ã«500ååppm以äžã®æ倧æ¿åºŠååžã
ããããšãç¹åŸŽãšããã äžèšããæ§ãªå±€æ§æãåãæ§ã«ããŠèšèšããã
æ¬çºæã®å å°é»éšæã¯ãåèšããè«žåé¡ã®ç·ãŠã
解決ãåŸã極ããŠåªããé»æ°çãå åŠçãå å°é»
çç¹æ§ãé»æ°çèå§æ§åã³äœ¿çšç°å¢ç¹æ§ã瀺ãã æ®ã«ãæ¬çºæã®å å°é»éšæã¯ãé»ååççšå圢
æéšæãšããŠé©çšãããå Žåã«ã¯ãç»å圢æãžã®
æ®çé»äœã®åœ±é¿ãå šããªãããã®é»æ°çç¹æ§ãå®
å®ããŠããé«æ床ã§é«SNæ¯ãæãããã®ã§ãã€
ãŠãèå ç²åŽãç¹°è¿ã䜿çšç¹æ§ã«é·ããæ¿åºŠãé«
ãããŒãããŒã³ãé®®æã«åºãŠãäžã€è§£å床ã®é«
ããé«å質ã®ç»åãå®å®ããŠç¹°è¿ãåŸãããšãã§
ããã åãæ¬çºæã®å å°é»éšæã¯ãæ¯æäœäžã«åœ¢æã
ããå å容局ãå±€èªäœåŒ·éã§ãã€ãŠãäžã€æ¯æäœ
ãšã®å¯çæ§ã«èããåªããŠãããé«éã§é·æéé£
ç¶çã«ç¹°è¿ã䜿çšããããšãã§ããã æŽã«ãæ¬çºæã®å å°é»éšæã¯ãå šå¯èŠå åã«æŒ
ããŠå æ床ãé«ããæ®ã«åå°äœã¬ãŒã¶ãšã®ããã
ã³ã°ã«åªããäžã€å å¿çãéãã 以äžãå³é¢ã«åŸã€ãŠãæ¬çºæã®å å°é»éšæã«å°±
ãŠè©³çŽ°ã«èª¬æããã 第ïŒå³ã¯ãæ¬çºæã®ç¬¬ïŒã®å®æœæ æ§äŸã®å å°é»
éšæã®å±€æ§æã説æããããã®æš¡åŒçæ§æå³ã§ã
ãã 第ïŒå³ã«ç€ºãå å°é»éšæïŒïŒïŒã¯ãå å°é»éšæ
çšãšããŠã®æ¯æäœïŒïŒïŒãšã該æ¯æäœïŒïŒïŒäžã«
èšãããã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒãšã第äžã®å±€
ïŒïŒ©ïŒïŒïŒïŒäžã«èšãããã第äºã®å±€ïŒïŒïŒïŒ
ïŒãšãæããã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒãšç¬¬äºã®å±€
ïŒïŒïŒïŒïŒãšã«ãã€ãŠå å容局ïŒïŒïŒãæ§æã
ãã 第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã¯ãã²ã«ãããŠã åå
ãšãå¿ èŠã«å¿ããŠãã·ãªã³ã³ååãæ°ŽçŽ ååãã
ãã²ã³ååã®äžã®å°ãªããšãïŒã€ãšãå«ãéæ¶è³ª
ææïŒä»¥åŸãïœâGeïŒSiããïŒããšèšãïŒã§
æ§æãããæ¯æäœäžã«èšãããã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒãšãã·ãªã³ã³ååãšãå¿ èŠã«å¿ããŠã
æ°ŽçŽ ååããã³ããã²ã³ååã®å°ãªããšãïŒã€ã
å«ãéæ¶è³ªææïŒä»¥åŸãïœâSiïŒïŒšãïŒããšèš
ãïŒã§æ§æããã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã«èš
ãããããå å°é»æ§ã瀺ã第äºã®å±€é åïŒïŒ³ïŒïŒ
ïŒïŒãšãæããã ã²ã«ãããŠã ååã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒ
ïŒäžã«äžéç¡ãåäžã«ååžããæ§ã«ç¬¬äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããŠãè¯ãããæãã¯å±€
åæ¹åã«ã¯äžéãªãå«æãããŠã¯ãããååžæ¿åºŠ
ã¯äžåäžã§ãã€ãŠãè¯ããèä¹ãããããã®å Žå
ã«ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«ãããŠã¯ãæ¯
æäœã®è¡šé¢ãšå¹³è¡ãªé¢å æ¹åã«é¢ããŠãã²ã«ãã
ãŠã ååã¯ãåäžãªååžã§äžéç¡ãå«æãããã®
ããã®é¢å æ¹åã«æŒããç¹æ§ã®åäžåãèšãç¹ã
ãå¿ èŠã§ããã æ®ã«ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®å±€åæ¹åã«ã¯äž
éç¡ãå«æãããŠããŠãäžã€åèšæ¯æäœïŒïŒïŒã®
èšããããŠããåŽãšã¯å察ã®åŽïŒå å容局ïŒïŒïŒ
ã®èªç±è¡šé¢ïŒïŒïŒåŽïŒã®æ¹ã«å¯ŸããŠåèšæ¯æäœïŒ
ïŒïŒåŽïŒå å容局ãšæ¯æäœïŒïŒïŒãšã®çé¢åŽïŒã®
æ¹ã«å€ãååžããç¶æ ãšãªãæ§ã«ããããæãã¯
ãã®éã®ååžç¶æ ãšãªãæ§ã«åèšç¬¬äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒäžã«ã²ã«ãããŠã ååã¯å«æãããã æ¬çºæã®å å°é»éšæã«ãããŠã¯ãåèšããæ§ã«
第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããã²ã«ã
ããŠã ååã®ååžç¶æ ã¯ãå±€åæ¹åã«ãããŠã¯ã
åèšã®æ§ãªååžç¶æ ãåããæ¯æïŒïŒïŒã®è¡šé¢ãš
å¹³è¡ãªé¢å æ¹åã«ã¯ãåäžãªååžç¶æ ãšãããã®
ãæãŸããã æ¬çºæã«æŒããŠã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒ
äžã«èšãããã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒäžã«
ã¯ãã²ã«ãããŠã ååã¯å«æãããŠãããããã®
æ§ãªå±€æ§é ã«ç¬¬äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã圢æããã
ãšã«ãã€ãŠãå¯èŠå é åãå«ããæ¯èŒççé·æ³¢ã
ãæ¯èŒçé·æ³¢é·è¿ã®å šé åã®æ³¢é·ã®å ã«å¯ŸããŠå
æ床ãåªããŠããå å°é»éšæãåŸãããšãã§ã
ãã åã奜ãŸããå®æœæ æ§ã®ïŒã€ã«æŒããŠã¯ã第äž
ã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«æŒããã²ã«ãããŠã å
åã®ååžç¶æ ã¯ãã®å šå±€é åã«ã²ã«ãããŠã åå
ãé£ç¶çã«äžéç¡ãååžããã²ã«ãããŠã ååã®
å±€åæ¹åã®ååžæ¿åºŠïŒ£ãæ¯æäœïŒïŒïŒåŽãã第äº
ã®å±€é åïŒïŒ³ïŒïŒïŒïŒã«åã€ãŠæžå°ããå€åãäž
ããããŠããã®ã§ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒãš
第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒãšã®éã«æŒãã芪åæ§
ã«åªããäžã€åŸè¿°ããæ§ã«æ¯æäœïŒïŒïŒåŽç«¯éšã«
æŒããŠã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ã極端ã«å€§
ããããããšã«ãããåå°äœã¬ãŒã¶ãŒçã䜿çšã
ãå Žåã®ã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã§ã¯æ®ãã©
åžåãåããªãé·æ³¢é·åŽã®å ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«æŒããŠãå®è³ªçã«å®å šã«åžåãã
ããšãåºæ¥ãæ¯æäœïŒïŒïŒé¢ããã®åå°ã«ããå¹²
æžãé²æ¢ããããšãåºæ¥ãã 第ïŒå³ä¹è³ç¬¬ïŒïŒå³ã«ã¯ç¬¬äžã®å±€é åïŒïŒ§ïŒïŒ
ïŒïŒäžã«å«æãããã²ã«ãããŠã ååã®å±€åæ¹å
ã®ååžç¶æ ãäžåäžãªå Žåã®å žåçäŸã瀺ãã
ãã 第ïŒå³ä¹è³ç¬¬ïŒïŒå³ã«ãããŠã¯ã暪軞ã¯ã²ã«ã
ããŠã ååã®ååžæ¿åºŠïŒ£ãã瞊軞ã¯å å°é»æ§ã瀺
ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã®å±€åã瀺ããtBã¯
æ¯æäœïŒïŒïŒåŽã®ç¬¬äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã®è¡š
é¢ã®äœçœ®ããtTã¯æ¯æäœåŽãšã¯å察åŽã®ç¬¬äžã®å±€
é åïŒïŒ§ïŒïŒïŒïŒã®è¡šé¢ã®äœçœ®ã瀺ããå³ã¡ãã²
ã«ãããŠã ååã®å«æããã第äžã®å±€é åïŒïŒ§ïŒ
ïŒïŒïŒã¯tBããtTåŽã«åã€ãŠå±€åœ¢æããªãããã 第ïŒå³ã«ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«å«
æãããã²ã«ãããŠã ååã®å±€åæ¹åã®ååžç¶æ
ã®ç¬¬ïŒã®å žåäŸã瀺ãããã 第ïŒå³ã«ç€ºãããäŸã§ã¯ãã²ã«ãããŠã ååã®
å«æããã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã圢æãã
ãè¡šé¢ãšæ¯æäœïŒïŒïŒã®è¡šé¢ãšãæ¥ããçé¢äœçœ®
tBããt1ã®äœçœ®ãŸã§ã¯ãã²ã«ãããŠã ååã®ååž
æ¿åºŠïŒ£ãC1ãªãäžå®ã®å€ãåãä¹ã第äžã®å±€
ïŒïŒ©ïŒã«å«æãããäœçœ®t1ããçé¢äœçœ®tTã«è³ã
ãŸã§ååžæ¿åºŠã¯ãC2ããåŸã ã«é£ç¶çã«æžå°ã
ããŠãããçé¢äœçœ®tTã«ãããŠã¯ã²ã«ãããŠã å
åã®ååžæ¿åºŠïŒ£ã¯C3ãšãããã 第ïŒå³ã«ç€ºãããäŸã«ãããŠã¯ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«å«æãããã²ã«ãããŠã ååã®å
åžæ¿åºŠïŒ£ã¯äœçœ®tBããäœçœ®tTã«è³ããŸã§æ¿åºŠC4ã
ãåŸã ã«é£ç¶çã«æžå°ããŠäœçœ®tTã«ãããŠæ¿åºŠC5
ãšãªãæ§ãªååžç¶æ ã圢æããŠããã 第ïŒå³ã®å Žåã«ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒ
ã«å«æãããã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ã¯tB
ããäœçœ®t2ãŸã§ã¯æ¿åºŠC6ãšäžå®å€ãšãããäœçœ®t2
ãšäœçœ®tTãšã®éã«ãããŠãåŸã ã«é£ç¶çã«æžå°ã
ããäœçœ®tTã«ãããŠãååžæ¿åºŠïŒ£ã¯å®è³ªçã«é¶ãš
ãããŠããïŒããã§å®è³ªçã«é¶ãšã¯æ€åºéçéæª
æºã®å Žåã§ããïŒã 第ïŒå³ã®å Žåã«ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒ
ã«å«æãããã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ã¯äœ
眮tBããäœçœ®tTã«è³ããŸã§ãæ¿åºŠC8ããé£ç¶çã«
åŸã ã«æžå°ãããäœçœ®tTã«ãããŠå®è³ªçã«é¶ãšã
ããŠããã 第ïŒå³ã«ç€ºãäŸã«ãããŠã¯ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«å«æãããã²ã«ãããŠã ååã®å
åžæ¿åºŠïŒ£ã¯ãäœçœ®tBãšäœçœ®t3éã«ãããŠã¯ãæ¿åºŠ
C9ãšäžå®å€ã§ãããäœçœ®tTã«ãããŠã¯æ¿åºŠC10ã
ãããäœçœ®t3ãšäœçœ®tTãšã®éã§ã¯ãååžæ¿åºŠïŒ£ã¯
äžæ¬¡é¢æ°çã«äœçœ®t3ããäœçœ®tTã«è³ããŸã§æžå°ã
ããŠããã 第ïŒå³ã«ç€ºãããäŸã«ãããŠã¯ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«å«æãããã²ã«ãããŠã ååã®å
åžæ¿åºŠïŒ£ã¯äœçœ®tBããäœçœ®t4ãŸã§ã¯æ¿åºŠC11ã®äžå®
å€ãåããäœçœ®t4ããäœçœ®tTãŸã§ã¯æ¿åºŠC12ããæ¿
床C13ãŸã§äžæ¬¡é¢æ°çã«æžå°ããååžç¶æ ãšãã
ãŠããã 第ïŒå³ã«ç€ºãäŸã«ãããŠã¯ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«å«æãããã²ã«ãããŠã ååã®å
åžæ¿åºŠïŒ£ã¯äœçœ®tBããäœçœ®tTã«è³ããŸã§ãæ¿åºŠC14
ããå®è³ªçã«é¶ã«è³ãæ§ã«äžæ¬¡é¢æ°çã«æžå°ããŠ
ããã 第ïŒå³ã«ãããŠã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒ
ã«å«æãããã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ã¯ã
äœçœ®tBããäœçœ®t5ã«è³ããŸã§ã¯æ¿åºŠC15ããæ¿åºŠ
C16ãŸã§äžæ¬¡é¢æ°çã«æžå°ãããäœçœ®t5ãšäœçœ®tTãš
ã®éã«ãããŠã¯ãæ¿åºŠC16ã®äžå®å€ãšãããäŸã
瀺ãããŠããã 第ïŒïŒå³ã«ç€ºãããäŸã«ãããŠã¯ã第äžã®å±€é
åïŒïŒ§ïŒïŒïŒïŒã«å«æãããã²ã«ãããŠã ååã®
ååžæ¿åºŠïŒ£ã¯äœçœ®tBã«ãããŠæ¿åºŠC17ã§ãããäœ
眮t6ã«è³ããŸã§ã¯ãã®æ¿åºŠC17ããåãã¯ãã€ã
ããšæžå°ãããt6ã®äœçœ®ä»è¿ã«ãããŠã¯ãæ¥æ¿ã«
æžå°ãããŠäœçœ®t6ã§ã¯æ¿åºŠC18ãšãããã äœçœ®t6ãšäœçœ®t7ãšã®éã«ãããŠã¯ãåãæ¥æ¿ã«
æžå°ãããŠããã®åŸã¯ãç·©ãã«åŸã ã«æžå°ãããŠ
äœçœ®t7ã§æ¿åºŠC19ãšãªããäœçœ®t7ãšäœçœ®t8ãšã®éã§
ã¯ã極ããŠãã€ãããšåŸã ã«æžå°ãããŠäœçœ®t8ã«
ãããŠãæ¿åºŠC20ã«è³ããäœçœ®t8ãšäœçœ®tTã®éã«ã
ããŠã¯ãæ¿åºŠC20ããå®è³ªçã«é¶ã«ãªãæ§ã«å³ã«
瀺ãåŠã圢ç¶ã®æ²ç·ã«åŸã€ãŠæžå°ãããŠããã 以äžã第ïŒå³ä¹è³ç¬¬ïŒïŒå³ã«ããã第äžã®å±€é
åïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããã²ã«ãããŠã åå
ã®å±€åæ¹åã®ååžç¶æ ã®å žåäŸã®å¹Ÿã€ãã説æã
ãæ§ã«ãæ¬çºæã«ãããŠã¯ãæ¯æäœïŒïŒïŒåŽã«ã
ããŠãã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ã®é«ãéšå
ãæããçé¢tTåŽã«ãããŠãåèšååžæ¿åºŠïŒ£ãæ¯
æäœïŒïŒïŒåŽã«èŒã¹ãŠå¯æãäœããããéšåãæ
ããã²ã«ãããŠã ååã®ååžç¶æ ã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«èšããããŠããå Žåãã奜é©ãªäŸ
ã®ïŒã€ãšããŠæããããã æ¬çºæã«æŒããå å°é»éšæãæ§æãã第äžã®å±€
é åïŒïŒ§ïŒïŒïŒïŒã¯ã奜ãŸããã¯äžèšããæ§ã«æ¯
æäœïŒïŒïŒåŽã®æ¹ãåã¯ãããšã¯éã«èªç±è¡šé¢ïŒ
ïŒïŒåŽã®æ¹ã«ã²ã«ãããŠã ååãæ¯èŒçé«æ¿åºŠã§
å«æãããŠããå±åšé åïŒïŒ¡ïŒãæããã®ãæãŸ
ããã äŸãã°ãå±åšé åïŒïŒ¡ïŒã¯ã第ïŒå³ä¹è³ç¬¬ïŒïŒ
å³ã«ç€ºãä¿¡å·ãçšããŠèª¬æããã°ãçé¢äœçœ®ïœã
ãå±€åæ¹åã«5Ό以å ã«èšããããã®ãæãŸããã äžèšå±åšé åïŒïŒ¡ïŒã¯ãçé¢äœçœ®ïœãã5ÎŒå
ãŸã§ã®å±€é åïŒïŒ¬ïŒã®å šéšãšãããå Žåããã
ããåãå±€é åïŒïŒ¬ïŒã®äžéšãšãããå Žåãã
ãã å±åšé åïŒïŒ¡ïŒãå±€é åïŒïŒ¬ïŒã®äžéšãšããã
åã¯å šéšãšãããã¯ã圢æããã第äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã«èŠæ±ãããç¹æ§ã«åŸã€ãŠé©å®æ±ºã
ãããã å±åšé åïŒïŒ¡ïŒã¯ããã®äžã®å«æãããã²ã«ã
ããŠã ååã®å±€åæ¹åã®ååžç¶æ ãšããŠã²ã«ãã
ãŠã ååã®ååžæ¿åºŠã®æ倧å€Cnaxãã·ãªã³ã³åå
ãšã®åã«å¯ŸããŠã奜ãŸããã¯1000ååppm以äžã
ãã奜é©ã«ã¯5000ååppm以äžãæé©ã«ã¯ïŒÃ
104ååppm以äžãšãããæ§ãªååžç¶æ ãšãªãåŸ
ãæ§ã«å±€åœ¢æãããã®ãæãŸããã å³ã¡ãæ¬çºæã«ãããŠã¯ãã²ã«ãããŠã ååã®
å«æããã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã¯ãæ¯æäœ
ïŒïŒïŒåŽããã®å±€åã§5Ό以å ïŒtBãã5ÎŒåã®å±€é
åïŒã«ååžæ¿åºŠã®æ倧å€Cnaxãååšããæ§ã«åœ¢æ
ãããã®ã奜ãŸããã æ¬çºæã«ãããŠã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäž
ã«å«æãããã²ã«ãããŠã ååã®å«æéãšããŠ
ã¯ãæ¬çºæã®ç®çãå¹æçã«éæãããæ§ã«ææ
ã«åŸã€ãŠé©å®æ±ºããããããã·ãªã³ã³ååãšã®å
ã«å¯ŸããŠã奜ãŸããã¯ïŒã10Ã105ååppmãã
奜ãŸããã¯100ã9.5Ã105ååppmãæé©ã«ã¯ã
500ãïŒÃ105ååppmãšãããã®ãæãŸããã 第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«æŒããã²ã«ãã
ãŠã ååã®ååžç¶æ ããå šå±€é åã«ã²ã«ãããŠã
ååãé£ç¶çã«ååžããã²ã«ãããŠã ååã®å±€å
æ¹åã®ååžæ¿åºŠïŒ£ãæ¯æäœïŒïŒïŒåŽããå å容局
ïŒïŒïŒã®èªç±è¡šé¢ïŒïŒïŒåŽã«åã€ãŠãæžå°ããå€
åãäžããããŠããããåã¯ãã®éã®å€åãäžã
ãããŠããå Žåã«ã¯ãååžæ¿åºŠïŒ£ã®å€åçæ²ç·ã
ææã«åŸã€ãŠä»»æã«èšèšããããšã«ãã€ãŠãèŠæ±
ãããç¹æ§ãæã€ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã
ææéãã«å®çŸããããšãåºæ¥ãã äŸãã°ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«æŒãã
ã²ã«ãããŠã ååã®ååžæ¿åºŠïŒ£ãæ¯æäœïŒïŒïŒåŽ
ã«æŒããŠã¯ãå åé«ããå å容局ïŒïŒïŒã®èªç±è¡š
é¢ïŒïŒïŒåŽã«æŒããŠã¯ã極åäœããæ§ãªãååžæ¿
床ã®å€åããã²ã«ãããŠã ååã®ååžæ¿åºŠæ²ç·
ã«äžããããšã«ãã€ãŠãå¯èŠå é åãå«ããæ¯èŒ
ççæ³¢é·ããæ¯èŒçé·æ³¢é·è¿ã®å šé åã®æ³¢é·ã®å
ã«å¯ŸããŠé«å æ床åãå³ãããšãåºæ¥ããšå ±ã«ã
ã¬ãŒã¶å çã®å¯å¹²æžå ã«å¯ŸããŠã®å¹²æžé²æ¢ãå¹æ
çã«èšãããšãåºæ¥ãã æ¬çºæã«æŒããŠç¬¬äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã®å±€
åãšç¬¬äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã®å±€åãšã¯ãæ¬çº
æã®ç®çãå¹æçã«éæãããçºã®éèŠãªå åã®
ïŒã€ã§ããã®ã§åœ¢æãããå å°é»éšæã«ææã®ç¹
æ§ãå åäžããããæ§ã«ãå å°é»éšæã®èšèšã®é
ã«å åãªã泚æãæãããå¿ èŠãããã æ¬çºæã«æŒããŠã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã®
å±€åTBã¯ã奜ãŸããã¯30â«ã50ÎŒããã奜ãŸãã
ã¯40â«ã40ÎŒãæé©ã«ã¯50â«ã30ÎŒãšãããã®ã
æãŸããã åã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã®å±€åã¯ã奜
ãŸããã¯ã0.5ã90ÎŒããã奜ãŸããã¯ïŒã80ÎŒã
æé©ã«ã¯ïŒã50ÎŒãšãããã®ãæãŸããã 第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã®å±€åTBãšç¬¬äºã®
å±€é åïŒïŒ³ïŒïŒïŒïŒã®å±€åã®åïŒTBïŒïŒŽïŒã¯ã
äž¡å±€é åã«èŠæ±ãããç¹æ§ãšå åå®¹å±€å šäœã«èŠæ±
ãããç¹æ§ãšã®çžäºéã®ææ©çé¢é£æ§ã«åºããŠã
å å°é»éšæã®å±€èšèšã®éã«ææã«åŸã€ãŠãé©å®æ±º
å®ãããã æ¬çºæã®å å°é»éšæã«æŒããŠã¯ãäžèšã®ïŒTB
ïŒïŒŽïŒã®æ°å€ç¯å²ã¯ã奜ãŸããã¯ïŒã100ÎŒãã
ã奜é©ã«ã¯ïŒã80ÎŒãæé©ã«ã¯ïŒã50ÎŒãšããã
ã®ãæãŸããã æ¬çºæã®ãã奜ãŸããå®æœæ æ§ã«æŒããŠã¯äžèš
ã®å±€åTBåã³å±€åã¯ã奜ãŸããã¯TBïŒïŒŽâŠïŒ
ãªãé¢ä¿ãæºè¶³ããããã«ã倫ã ã«å¯ŸããŠé©å®é©
åãªæ°å€ãéžæãããã®ãæãŸããã äžèšã®å Žåã«æŒããå±€åTBåã³å±€åã®æ°å€
ã®éžæã«æŒããŠããã奜ãŸããã¯ãTBïŒïŒŽâŠ0.9ã
æé©ã«ã¯TBïŒïŒŽâŠ0.8ãªãé¢ä¿ãæºè¶³ãããæ§ã«
å±€åTBåã³å±€åã®å€ã決å®ãããã®ãæãŸã
ããã®ã§ããã æ¬çºæã«æŒããŠã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäž
ã«å«æãããã²ã«ãããŠã ååã®å«æéãïŒÃ10
ååppm以äžã®å Žåã«ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒ
ïŒïŒã®å±€åTBã¯ãå¯æãèããããã®ãæãŸã
ãã奜ãŸããã¯30Ό以äžããã奜ãŸããã¯25Ό以
äžãæé©ã«ã¯20Ό以äžãšãããã®ãæãŸããã æ¬çºæã®å å°é»éšæã«æŒããŠã¯ãé«å æ床åãš
é«ææµæåãæŽã«ã¯ãæ¯æäœãšå å容éãšã®éã®
å¯çæ§ã®æ¹è¯ãå³ãç®çã®çºã«ã第äžã®å±€ïŒïŒ©ïŒ
ïŒïŒïŒäžã«ã¯ãççŽ ååãå«æãããå±€é åã
èšãããããççŽ ååã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒ
ã®å šå±€é åã«äžéãªãå«æãããŠãè¯ãããæã
ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®äžéšã®å±€é åã®ã¿ã«
å«æãããŠéåšãããŠãè¯ãã æ¬çºæã«æŒããŠãå±€é åã«æŒããççŽ ååã®
ååžç¶æ ã¯ååžæ¿åºŠïŒ£ïŒïŒ£ïŒããæ¯æäœïŒïŒïŒã®
è¡šé¢ãšå¹³è¡ãªé¢å æ¹åã«æŒããŠã¯åäžã§ãããã
å±€åæ¹åã«æŒããŠã¯äžåäžã§ããã 第ïŒïŒå³ã«ç€ºãããäŸã§ã¯ãççŽ ååã®ååžæ¿
床ïŒïŒ£ïŒã¯ãæ¯æäœåŽã®ç¬¬äžå±€ïŒïŒïŒã®è¡šé¢äœ
眮tBããt9ãŸã§ã®å±€é åã«æŒããŠã¯æ¿åºŠC21ãšã
ããäœçœ®t9ããäœçœ®t10ãŸã§ã®å±€é åã«æŒããŠã¯ã
äœçœ®t9ããäœçœ®t10ãŸã§æ¥æ¿ã«å¢å ããäœçœ®t10ã§
ååžæ¿åºŠã®ããŒã¯å€C22ã«ãªããäœçœ®t10ããäœçœ®
t11ãŸã§ã®å±€é åã«æŒããŠã¯ççŽ ååã®ååžæ¿åºŠ
ïŒïŒ£ïŒã¯äœçœ®t11ãžè¿ã¥ãã«ã€ããŠæ¥æ¿ã«æžå°
ããæ¯æäœïŒïŒïŒãšã¯å察åŽã®ç¬¬äžå±€ïŒïŒïŒã®è¡š
é¢äœçœ®tTã§æ¿åºŠC21ãšãªãã 第ïŒïŒå³ã®ç€ºãããäŸã§ã¯ãççŽ ååã®ååžæ¿
床ïŒïŒ£ïŒã¯ãäœçœ®tBããäœçœ®t12ãŸã§ã®å±€é åã§
ã¯æ¿åºŠC23ãšããäœçœ®t12ããäœçœ®t13ãŸã§ã®å±€é å
ã§ã¯äœçœ®t12ããäœçœ®t13ãŸã§æ¥æ¿ã«å¢å ããäœçœ®
t13ã§ååžæ¿åºŠã®ããŒã¯å€C24ããšãäœçœ®t13ããäœ
眮tTãŸã§ã®å±€é åã§ã¯äœçœ®tTãžè¿ã¥ãã«ã€ããŠã»
ãŒé¶ã«ãªããŸã§æžå°ããã 第ïŒïŒå³ã«ç€ºãããäŸã§ã¯ãççŽ ååã®ååžæ¿
床ïŒïŒ£ïŒã¯ãäœçœ®tBããäœçœ®t14ãŸã§ã®å±€é åã§
ã¯C25ããC26ãŸã§ããããã«å¢å ããäœçœ®t14ã§
ååžæ¿åºŠã®ããŒã¯å€C26ãšãªããäœçœ®t14ããäœçœ®
tTãŸã§ã®å±€é åã§ã¯äœçœ®tTãžè¿ã¥ãã«ã€ããŠæ¥æ¿
ã«æžå°ããäœçœ®tTã§ã¯æ¿åºŠC25ãšãªãã 第ïŒïŒå³ã«ç€ºãããäŸã§ã¯ãççŽ ååã®ååžæ¿
床ïŒïŒ£ïŒã¯ãäœçœ®tBã§æ¿åºŠC27ã§ãäœçœ®tBããäœ
眮t15ã«è¿ã¥ãã«ã€ããŠæžå°ãäœçœ®t15ã§æ¿åºŠC28ãš
ãªããäœçœ®t15ããäœçœ®t16ãŸã§ã®å±€é åã§ã¯ãç
çŽ ååã®ååžæ¿åºŠïŒ£ïŒïŒ£ïŒã¯æ¿åºŠC28ã§äžå®ã§ã
ããäœçœ®t16ããäœçœ®t17ãŸã§ã®å±€é åã«æŒããŠã¯
ççŽ ååã®ååžæ¿åºŠã¯å¢å ããäœçœ®t17ã§ååžæ¿
床ïŒïŒ£ïŒã¯ããŒã¯å€C29ããšããäœçœ®t17ããäœ
眮tTãŸã§ã®å±€é åã«æŒããŠã¯ççŽ ååã®ååžæ¿åºŠ
ïŒïŒ£ïŒã¯æžå°ãäœçœ®tTã§æ¿åºŠC28ãšãªãã æ¬çºæã«æŒããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã«èšã
ãããççŽ ååã®å«æãããŠããå±€é åïŒïŒ£ïŒ
ã¯ãå æ床ãšææµæã®åäžãäž»ããç®çãšããå Ž
åã«ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®å šå±€é åãå ã
ãæ§ã«èšããããå å容局ã®èªç±è¡šé¢ããã®é»è·
ã®æ³šå ¥ãé²æ¢ããããã«ã¯ãèªç±è¡šé¢åŽã®çé¢è¿
åãå ããæ§ã«èšããããæ¯æäœãšå å容局ãšã®
éã®å¯çæ§ã®åŒ·åãå³ãã®ãäž»ããç®çãšããå Ž
åã«ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®æ¯æäœåŽç«¯éšå±€
é åãå ããæ§ã«èšããããã äžèšã®ç¬¬ïŒã®ç®çã®å Žåãå±€é åïŒïŒ£ïŒäžã«å«
æãããççŽ ååã®å«æéã¯ãé«å æ床ãç¶æã
ãçºã«æ¯èŒçå°ãªããããäžèšç¬¬ïŒã®ç®çã®å Žå
å å容局ã®èªç±è¡šé¢ããã®é»è·ã®æ³šå ¥ãé²ããã
ã«æ¯èŒçå€ããããäžèšç¬¬ïŒã®ç®çã®å Žåã«ã¯ã
æ¯æäœãšã®å¯çæ§ã®åŒ·åã確å®ã«å³ãçºã«æ¯èŒç
å€ããããã®ãæãŸããã åãäžèšäžè ãåæã«éæããç®çã®çºã«ã¯ã
æ¯æäœåŽã«æŒããŠæ¯èŒçé«æ¿åºŠã«ååžãããäžå€®
ã«æŒããŠæ¯èŒçäœæ¿åºŠã«ååžãããèªç±è¡šé¢åŽã®
çé¢å±€é åã«ã¯ãççŽ ååãããå€ãããæ§ãªç
çŽ ååã®ååžç¶æ ãå±€é åïŒïŒ£ïŒäžã«åœ¢æããã°
è¯ãã èªç±è¡šé¢ããã®é»è·ã®æ³šå ¥ãé²æ¢ããããã«
ã¯ãèªç±è¡šé¢åŽã§ççŽ ååã®ååžæ¿åºŠïŒ£ïŒïŒ£ïŒã
å€ãããå±€é åïŒïŒ§ïŒã圢æããã®ãæãŸããã æ¬çºæã«æŒããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã«èšã
ãããççŽ ååãå«æããå±€é åïŒïŒ£ïŒã«ããã
ççŽ ååã®å«æéã¯ãå±€é åïŒïŒ£ïŒèªäœã«èŠæ±ã
ããç¹æ§ãæãã¯è©²å±€é åïŒïŒ£ïŒãæ¯æäœïŒïŒïŒ
ã«çŽã«æ¥è§ŠããŠèšããããå Žåã«ã¯ã該æ¯æäœïŒ
ïŒïŒãšã®æ¥è§Šçé¢ã«æŒããç¹æ§ãšã®é¢ä¿çãææ©
çé¢é£æ§ã«æŒããŠãé©å®éžæããããšãåºæ¥ãã åãåèšå±€é åïŒïŒ£ïŒã«çŽã«æ¥è§ŠããŠä»ã®å±€é
åãèšããããå Žåã«ã¯ã該ä»ã®å±€é åã®ç¹æ§ã
該ä»ã®å±€é åãšã®æ¥è§Šçé¢ã«æŒããç¹æ§ãšã®é¢ä¿
ãèæ ®ãããŠãççŽ ååã®å«æéãé©å®éžæãã
ãã å±€é åïŒïŒ£ïŒäžã«å«æãããççŽ ååã®éã¯ã
圢æãããå å°é»éšæã«èŠæ±ãããç¹æ§ã«å¿ããŠ
ææã«åŸã€ãŠé©å®æ±ºããããããã·ãªã³ã³ååãš
ã²ã«ãããŠã ååãšççŽ ååãšã®åïŒä»¥åŸã
ïŒSiGeCïŒãšèšãïŒã«å¯ŸããŠã奜ãŸããã¯ã0.001
ã50ååïŒ ããã奜ãŸããã¯0.002ã40ååïŒ ã
æé©ã«ã¯ã0.003ã30ååïŒ ãšãããã®ãæãŸã
ãã æ¬çºæã«æŒããŠãå±€é åïŒïŒ£ïŒã第äžã®å±€
ïŒïŒ©ïŒïŒïŒïŒã®å šåãå ããããæãã¯ã第äžã®
å±€ïŒïŒ©ïŒïŒïŒïŒã®å šåãå ããªããšããå±€é å
ïŒïŒ£ïŒã®å±€åT0ã®ç¬¬äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®å±€å
ã«å ããå²åãå åå€ãå Žåã«ã¯ãå±€é åïŒïŒ£ïŒ
ã«å«æãããççŽ ååã®å«æéã®äžéã¯ãåèšã®
å€ããå åå°ãªããããã®ãæãŸããã æ¬çºæã«ãããŠã¯ãå±€é åïŒïŒ£ïŒã®å±€åT0ã
第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®å±€åã«å¯ŸããŠå ããå²
åãïŒåã®ïŒä»¥äžãšãªãæ§ãªå Žåã«ã¯ãå±€é å
ïŒïŒ£ïŒäžã«å«æãããççŽ ååã®éã®äžéãšããŠ
ã¯ãïŒSiGeCïŒã«å¯ŸããŠå¥œãŸããã¯ã30ååïŒ
以äžããã奜ãŸããã¯ã20ååïŒ ä»¥äžãæé©ã«ã¯
10ååïŒ ä»¥äžãšãããã®ãæãŸããã æ¬çºæã«ãããŠãççŽ ååã®å«æãããå±€é å
ïŒïŒ£ïŒã¯ãäžèšããæ§ã«æ¯æäœïŒïŒïŒåŽåã¯ïŒå
ã³ç¬¬äºã®å±€ïŒïŒïŒïŒïŒåŽã®è¿åã«ççŽ ååãæ¯
èŒçé«æ¿åºŠã§å«æãããŠããå±åšé åïŒïŒ¢ïŒãæ
ãããã®ãšããŠèšããããã®ãæãŸããããã®å Ž
åã«ã¯ãæ¯æäœïŒïŒïŒãšç¬¬äžã®å±€ïŒïŒ©ïŒïŒïŒïŒãš
ã®éã®å¯çæ§ãããäžå±€åäžãããããšåã³å容
é»äœãåäžãããããšãåºæ¥ãã äžèšå±åšé åïŒïŒ¢ïŒã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒ
ã®æ¯æäœïŒïŒïŒåŽããã³ç¬¬äºã®å±€ïŒïŒïŒïŒïŒåŽ
ã®è¡šé¢ïŒçé¢ïŒãã5Ό以å ã«èšããããã®ãæ
ãŸããã æ¬çºæã«ãããŠã¯ãäžèšå±åšé åïŒïŒ¢ïŒã¯ã第
äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®ãæ¯æäœïŒïŒïŒãããŸãã¯
第äºã®å±€ïŒïŒïŒïŒïŒåŽã®è¡šé¢ãã5ÎŒåãŸã§ã®
å±€é åïŒLTïŒã®å šéšãšãããå Žåãããããåã
å±€é åïŒLTïŒã®äžéšãšãããå Žåãããã å±åšé åïŒïŒ¢ïŒãå±€é åïŒLTïŒã®äžéšãšãã
ãåã¯å šéšãšãããã¯ã圢æãããå å容局ïŒïŒ
ïŒã«èŠæ±ãããç¹æ§ã«åŸã€ãŠé©å®æ±ºããããã å±åšé åïŒïŒ¢ïŒã¯ããã®äžã«å«æãããççŽ å
åã®å±€åæ¹åã®ååžç¶æ ãšããŠççŽ ååã®ååžæ¿
床ïŒïŒ£ïŒã®æ倧å€Cnaxãã奜ãŸããã¯500åå
ppm以äžããã奜ãŸããã¯800ååppm以äžãæ
é©ã«ã¯1000ååppm以äžãšãããæ§ãªååžç¶æ ãš
ãªãåŸãæ§ã«å±€åœ¢æãããã®ãæãŸããã å³ã¡ãæ¬çºæã«ãããŠã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒ
ïŒäžã®ãççŽ ååã®å«æãããå±€é åïŒïŒ£ïŒã¯ã
æ¯æäœïŒïŒïŒåŽãŸãã¯ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®è¡š
é¢ããã®å±€åã§5Ό以å ã«ååžæ¿åºŠã®æ倧å€Cnaxã
ååšããæ§ã«åœ¢æãããã®ãæãŸããã æ¬çºæã«ãããŠãå¿ èŠã«å¿ããŠç¬¬äžã®å±€ïŒïŒ©ïŒ
ïŒïŒïŒã«å«æãããããã²ã³ååãšããŠã¯ãå ·äœ
çã«ã¯ããçŽ ãå¡©çŽ ãèçŽ ããšãŠçŽ ãæãããã
æ®ã«ããçŽ ãå¡©çŽ ã奜é©ãªãã®ãšããŠæããããš
ãåºæ¥ãã æ¬çºæã®å å°é»éšæã«æŒããŠã¯ãã²ã«ãããŠã
ååã®å«æããã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒå
ã¯ïŒåã³ã²ã«ãããŠã ååã®å«æãããªã第äºã®
å±€é åïŒïŒ³ïŒïŒïŒïŒã«ã¯ãäŒå°ç¹æ§ãæ¯é ããç©
質ãå«æãããããšã«ãããåœè©²å±€é åïŒïŒ§ïŒ
åã¯ïŒåã³å±€é åïŒïŒ³ïŒã®äŒå°ç¹æ§ãææã«åŸã€
ãŠä»»æã«å¶åŸ¡ããããšãåºæ¥ããæ¬çºæã«ãããŠ
ã¯ãäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã®å«æãããå±€é
åïŒPNïŒã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®äžéšåã¯
å šéšã«èšããŠããããåã¯ãå±€é åïŒPNïŒã¯ã
å±€é åïŒïŒ§ïŒãŸãã¯ïŒïŒ³ïŒã®äžéšåã¯å šéšã«èšã
ãŠãããã ãã®æ§ãªäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ãšããŠã¯ã
æè¬ãåå°äœåéã§äºãããäžçŽç©ãæããããš
ãåºæ¥ãæ¬çºæã«æŒããŠã¯ãã·ãªã³ã³ååãŸãã¯
ã²ã«ãããŠã ååã«å¯ŸããŠãïœåäŒå°ç¹æ§ãäžã
ãïœåäžçŽç©åã³ïœåäŒå°ç¹æ§ãäžããïœåäžçŽ
ç©ãæããããšãåºæ¥ããå ·äœçã«ã¯ãïœåäžçŽ
ç©ãšããŠã¯åšæåŸè¡šç¬¬æã«å±ããååïŒç¬¬æ
ååïŒãäŸãã°ãç¡ŒçŽ ïŒïŒ¢ïŒãã¢ã«ãããŠã
ïŒAlïŒãã¬ãªãŠã ïŒGaïŒãã€ã³ãžãŠã ïŒInïŒãã¿ãª
ãŠã ïŒTlïŒçããããæ®ã«å¥œé©ã«çšããŠããã®
ã¯ããGaã§ããããŸããïœåäžçŽç©ãšããŠã¯ã
åšæåŸè¡šç¬¬ æã«å±ããååïŒç¬¬ æååïŒãäŸ
ãã°ãçïŒïŒ°ïŒãç çŽ ïŒAsïŒãã¢ã³ãã¢ã³ïŒSbïŒã
ãã¹ãã¹ïŒBiïŒçã§ãããæ®ã«ã奜é©ã«çšãã
ããã®ã¯ããAsã§ããã æ¬çºæã«æŒããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«å«
æãããäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã®å«æéã¯ã
該第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã«èŠæ±ãããäŒå°ç¹æ§ã
æãã¯è©²ç¬¬äžã®å±€ïŒïŒ©ïŒïŒïŒïŒãçŽã«æ¥è§ŠããŠèš
ããããæ¯æäœïŒïŒïŒãšã®æ¥è§Šçé¢ã«æŒããç¹æ§
ãšã®é¢ä¿çãææ©çé¢é£æ§ã«æŒããŠãé©å®éžæã
ãããšãåºæ¥ãã åãåèšã®äŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã第äžã®
å±€ïŒïŒ©ïŒïŒïŒïŒäžã«å«æãããã®ã«ã該第äžã®å±€
ïŒïŒ©ïŒïŒïŒïŒã®ææãããå±€é åã«å±åšçã«å«æ
ãããå Žåãæ®ã«ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®æ¯æ
äœåŽç«¯éšå±€é åã«å«æãããå Žåã«ã¯ã該局é å
ã«çŽã«æ¥è§ŠããŠèšããããä»ã®å±€é åã®ç¹æ§ãã
該ä»ã®å±€é åãšã®æ¥è§Šçé¢ã«æŒããç¹æ§ãšã®é¢ä¿
ãèæ ®ãããŠãäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã®å«æ
éãé©å®éžæãããã æ¬çºæã«æŒããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«å«
æãããäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã®å«æéãšã
ãŠã¯ã奜ãŸããã¯ã0.01ãïŒÃ104ååppmãã
ã奜é©ã«ã¯0.5ãïŒÃ104ååppmãæé©ã«ã¯ïŒã
ïŒÃ103ååppmãšãããã®ãæãŸããã æ¬çºæã«æŒããŠãäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã
å«æãããå±€é åïŒPNïŒã«æŒãã該ç©è³ªïŒ€ã®å«
æéãã奜ãŸããã¯30ååppm以äžããã奜é©ã«
ã¯50ååppm以äžãæé©ã«ã¯ã100ååppm以äž
ã®å Žåã«ã¯ãåèšäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã¯ã
第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®äžéšã®å±€é åã«å±åšçã«
å«æãããã®ãæãŸãããæ®ã«ç¬¬äžã®å±€ïŒïŒ©ïŒïŒ
ïŒïŒã®æ¯æäœåŽç«¯éšå±€é åïŒïŒ¥ïŒã«ååšãããã®
ãæãŸããã äžèšã®äžã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®æ¯æäœåŽç«¯
éšå±€é åïŒïŒ¥ïŒã«åèšã®æ°å€ä»¥äžã®å«æéãšãªã
æ§ã«åèšäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ãå«æããã
ããšã«ãã€ãŠãäŸãã°åœè©²ç©è³ªïŒ€ãåèšïœåäžçŽ
ç©ã®å Žåã«ã¯ãå å容局ïŒïŒïŒã®èªç±è¡šé¢ïŒïŒïŒ
ã極æ§ã«åž¯é»åŠçãåããéã«æ¯æäœïŒïŒïŒåŽ
ããå å容局ïŒïŒïŒäžãžæ³šå ¥ãããé»åã®ç§»åã
å¹æçã«é»æ¢ããããšãåºæ¥ãåãåèšäŒå°ç¹æ§
ãæ¯é ããç©è³ªãåèšã®ïœåäžçŽç©ã®å Žåã«ã¯ã
å å容局ïŒïŒïŒã®èªç±è¡šé¢ïŒïŒïŒã極æ§ã«åž¯é»
åŠçãåããéã«ãæ¯æäœïŒïŒïŒåŽããå å容局
ïŒïŒïŒäžãžæ³šå ¥ãããæ£åã®ç§»åãå¹æçã«é»æ¢
ããããšãåºæ¥ãã ãã®æ§ã«ãåèšæ¯æäœåŽç«¯éšå±€é åïŒïŒ¥ïŒã«äž
æ¹ã®æ¥µæ§ã®äŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ãå«æãã
ãå Žåã«ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®æ®ãã®å±€é
åãå³ã¡ãåèšæ¯æäœåŽç«¯éšå±€é åïŒïŒ¥ïŒãé€ã
ãéšåã®å±€é åïŒïŒºïŒã«ã¯ãä»ã®æ¥µæ§ã®äŒå°ç¹æ§
ãæ¯é ããç©è³ªãå«æãããŠãè¯ãããæãã¯ã
å極æ§ã®äŒå°ç¹æ§ãæ¯é ããç©è³ªããæ¯æäœåŽç«¯
éšå±€é åïŒïŒ¥ïŒã«å«æãããå®éã®éãããäžæ®µ
ãšå°ãªãéã«ããŠå«æãããŠãè¯ãã ãã®æ§ãªå Žåãåèšå±€é åïŒïŒºïŒäžã«å«æãã
ãåèšäŒå°ç¹æ§ãæ¯é ããç©è³ªïŒ€ã®å«æéãšããŠ
ã¯ãæ¯æäœåŽç«¯éšå±€é åïŒïŒ¥ïŒã«å«æãããåèš
ç©è³ªã®æ¥µæ§ãå«æéã«å¿ããŠææã«åŸã€ãŠé©å®æ±º
å®ããããã®ã§ãããã奜ãŸããã¯ã0.001ã
1000ååppmããã奜é©ã«ã¯0.05ã500ååppm
æé©ã«ã¯0.1ã200ååppmãšãããã®ãæãŸã
ãã æ¬çºæã«æŒããŠãæ¯æäœåŽç«¯éšå±€é åïŒïŒ¥ïŒå
ã³å±€é åïŒïŒºïŒã«åçš®ã®äŒå°æ§ãæ¯é ããç©è³ªã
å«æãããå Žåã«ã¯ãåœè©²ç©è³ªã®å±€é åïŒïŒºïŒã«
æŒããå«æéãšããŠã¯ã奜ãŸããã¯ã30ååppm
以äžãšããã®ãæãŸãããäžèšããå Žåã®ä»ã«ã
æ¬çºæã«æŒããŠã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«ã
äžæ¹ã®æ¥µæ§ãæããäŒå°æ§ãæ¯é ããç©è³ªãå«æ
ãããå±€é åãšãä»æ¹ã®æ¥µæ§ãæããäŒå°æ§ãæ¯
é ããç©è³ªãå«æãããå±€é åãšãçŽã«æ¥è§Šãã
æ§ã«èšããŠã該æ¥è§Šå±€é åã«æè¬ç©ºä¹å±€ãèšãã
ããšãåºæ¥ããè©°ããäŸãã°ã第äžã®å±€ïŒïŒ©ïŒïŒ
ïŒïŒäžã«ãåèšã®ïœåäžçŽç©ãå«æããå±€é åãš
åèšã®ïœåäžçŽç©ãå«æããå±€é åãšãçŽã«æ¥è§Š
ããæ§ã«èšããŠæè¬ïœâïœæ¥åã圢æããŠã空ä¹
å±€ãèšããããšãåºæ¥ãã æ¬çºæã«ãããŠãïœâGeïŒSiããïŒã§æ§æ
ããã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã¯ãäŸãã°ãã°
ããŒæŸé»æ³ãã¹ããã¿ãªã³ã°æ³ãæãã¯ã€ãªã³ã
ã¬ãŒãã€ã³ã°æ³çã®æŸé»çŸè±¡ãå©çšããç空å ç©
æ³ã«ãã€ãŠåœ¢æããããäŸãã°ãã°ããŒæŸé»æ³ã«
ãã€ãŠãïœâGeïŒSiããïŒã§æ§æããã第äž
ã®å±€é åïŒïŒ§ïŒïŒïŒïŒã圢æããã«ã¯ãåºæ¬çã«
ã¯ã²ã«ãããŠã ååãäŸçµŠãåŸãã²ã«ãããŠã å
åäŸçµŠçšã®åæã¬ã¹ãšå¿ èŠã«å¿ããŠãã·ãªã³ã³å
åãäŸçµŠãåŸãã·ãªã³ã³ååäŸçµŠçšã®åæã¬ã¹ã
æ°ŽçŽ ååå°å ¥çšã®åæã¬ã¹åã¯ïŒåã³ããã²ã³å
åå°å ¥çšã®åæã¬ã¹ãšããå éšãæžå§ãåŸãå ç©
宀å ã«ææã®ã¬ã¹å§ç¶æ ã§å°å ¥ããŠã該å ç©å®€å
ã«ã°ããŒæŸé»æ³ãçèµ·ãããäºãæå®äœçœ®ã«èšçœ®
ãããŠãããæå®ã®æ¯æäœè¡šé¢äžã«ïœâGeïŒSiã
ãïŒãããªãå±€ã圢æããã°è¯ããåãã²ã«
ãããŠã ååãäžåäžãªååžç¶æ ã§ç¬¬äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããã«ã¯ã²ã«ãããŠã å
åã®ååžæ¿åºŠãææã®å€åçæ²ç·ã«åŸã€ãŠå¶åŸ¡ã
ä¹ãïœâGeïŒSiããïŒãããªãå±€ã圢æãã
ãã°è¯ããåãã¹ããã¿ãªã³ã°æ³ã«ãããŠã¯ãäŸ
ãã°ArãHeçã®äžæŽ»æ§ã¬ã¹åã¯ããçã®ã¬ã¹ã
ããŒã¹ãšããæ··åã¬ã¹ã®é°å²æ°äžã§ã·ãªã³ã³åå
ã§æ§æãããã¿ãŒã²ãããæãã¯ã該ã¿ãŒã²ãã
ãšã²ã«ãããŠã ååã§æ§æãããã¿ãŒã²ããã®äº
æã䜿çšããŠãåã¯ãã·ãªã³ã³ååãšã²ã«ãããŠ
ã ååã®æ··åãããã¿ãŒã²ããã䜿çšããŠãå¿ èŠ
ã«å¿ããŠãHeãArçã®çšéã¬ã¹ã§çšéãããã²
ã«ãããŠã ååäŸçµŠçšã®åæã¬ã¹åãå¿ èŠã«å¿ã
ãŠæ°ŽçŽ åååã¯ïŒåã³ããã²ã³ååå°å ¥çšã®ã¬ã¹
ãã¹ããã¿ãªã³ã°çšã®å ç©å®€ã«å°å ¥ããææã®ã¬
ã¹ã®ãã©ãºãé°å²æ°ã圢æããããšã«ãã€ãŠç¬¬äž
ã®å±€é åïŒïŒ§ïŒïŒïŒïŒã圢æããããã®ã¹ããã¿
ãªã³ã°æ³ã«ãããŠãã²ã«ãããŠã ååã®ååžãäž
åäžã«ããå Žåã«ã¯ãåèšã²ã«ãããŠã ååäŸçµŠ
çšã®åæã¬ã¹ã®ã¬ã¹æµéãææã®å€åçæ²ç·ã«åŸ
ã€ãŠå¶åŸ¡ãä¹ããåèšã®ã¿ãŒã²ãããã¹ããã¿ãª
ã³ã°ããŠããã°è¯ãã ã€ãªã³ãã¬ãŒãã€ã³ã°æ³ã®å Žåã«ã¯ãäŸãã°å€
çµæ¶ã·ãªã³ã³åã¯åçµæ¶ã·ãªã³ã³ãšå€çµæ¶ã²ã«ã
ããŠã åã¯åçµæ¶ã²ã«ãããŠã ãšãã倫ã èžçºæº
ãšããŠèžçããŒãã«å容ãããã®èžçºæºãæµæå
ç±æ³ãæãã¯ããšã¬ã¯ããã³ããŒã æ³ïŒEBæ³ïŒ
çã«ãã€ãŠå ç±èžçºãããé£ç¿èžçºç©ãææã®ã¬
ã¹ãã©ãºãé°å²æ°äžãééããã以å€ã¯ãã¹ãã
ã¿ãªã³ã°æ³ã®å Žåãšåæ§ã«ããããšã«ãã€ãŠç¬¬äž
ã®å±€é åïŒïŒ§ïŒïŒïŒïŒã圢æããããšãã§ããã æ¬çºæã«ãããŠäœ¿çšãããã·ãªã³ã³ååäŸçµŠçš
ã®åæã¬ã¹ãšæãåŸãç©è³ªãšããŠã¯ãSiH4ã
Si2H6ãSi3H8ãSi4H10çã®ã¬ã¹ç¶æ ã®åã¯ã¬ã¹
åãåŸãæ°ŽçŽ åç¡ çŽ ïŒã·ã©ã³é¡ïŒãæå¹ã«äœ¿çšã
ãããã®ãšããŠæããããæ®ã«ãå±€äœæäœæ¥æã®
åæ±ãæããã·ãªã³ã³ååäŸçµŠå¹çã®è¯ãçã®ç¹
ã§SiH4ãSi2H6ãã奜ãŸãããã®ãšããŠæããã
ãã ã²ã«ãããŠã ååäŸçµŠçšã®åæã¬ã¹ãšæãåŸã
ç©è³ªãšããŠã¯ãGeH4ãGe2H6ãGe3H8ã
Ge4H10ãGe5H12ãGe6H14ãGe7H16ãGe88H18ã
Ge9H20çã®ã¬ã¹ç¶æ ã®åã¯ã¬ã¹åãåŸãæ°ŽçŽ å
ã²ã«ãããŠã ãæå¹ã«äœ¿çšããããã®ãšããŠæã
ãããæ®ã«ãå±€äœæäœæ¥æã®åæ±ãæããã²ã«ã
ããŠã ååäŸçµŠå¹çã®è¯ãçã®ç¹ã§ãGeH4ã
Ge2H6ãGe3H8ã奜ãŸãããã®ãšããŠæããã
ãã æ¬çºæã«ãããŠäœ¿çšãããããã²ã³ååå°å ¥çš
ã®åæã¬ã¹ãšããŠæå¹ãªã®ã¯ãå€ãã®ããã²ã³å
åç©ãæããããäŸãã°ããã²ã³ã¬ã¹ãããã²ã³
åç©ãããã²ã³éååç©ãããã²ã³ã§çœ®æããã
ã·ã©ã³èªå°äœçã®ã¬ã¹ç¶æ ã®åã¯ã¬ã¹åãåŸãã
ãã²ã³ååç©ã奜ãŸããæãããããåãæŽã«
ã¯ãã·ãªã³ã³ååãšããã²ã³ååãšãæ§æèŠçŽ ãš
ããã¬ã¹ç¶æ ã®åã¯ã¬ã¹åãåŸããããã²ã³åå
ãå«ãæ°ŽçŽ å çŽ ååç©ãæå¹ãªãã®ãšããŠæ¬çº
æã«ãããŠã¯æããããšãåºæ¥ãã æ¬çºæã«ãããŠå¥œé©ã«äœ¿çšãåŸãããã²ã³åå
ç©ãšããŠã¯ãå ·äœçã«ã¯ãããçŽ ãå¡©çŽ ãèçŽ ã
ãšãŠçŽ ã®ããã²ã³ã¬ã¹ãBrFãClFãClF3ã
BrF5ãBrF3ãIF3ãIF7ãIClãIBrçã®ããã²ã³
éååç©ãæããããšãåºæ¥ãã ããã²ã³ååãå«ãç¡ çŽ ååç©ãæè¬ãããã²
ã³ååã§çœ®æãããã·ã©ã³èªå°äœãšããŠã¯ãå ·äœ
çã«ã¯äŸãã°Si2F4ãSi2F6ãSiCl4ãSiBr4çã®ã
ãã²ã³åç¡ çŽ ã奜ãŸãããã®ãšããŠæããããšã
åºæ¥ãã ãã®æ§ãªããã²ã³ååãå«ãç¡ çŽ ååç©ãæ¡çš
ããŠã°ããŒæŸé»æ³ã«ãã€ãŠæ¬çºæã®ç¹åŸŽçãªå å°
é»éšæã圢æããå Žåã«ã¯ãã²ã«ãããŠã ååäŸ
絊çšã®åæã¬ã¹ãšå ±ã«ã·ãªã³ã³ååãäŸçµŠãåŸã
åæã¬ã¹ãšããŠã®æ°ŽçŽ åç¡ çŽ ã¬ã¹ã䜿çšããªããš
ããææã®æ¯æäœïŒïŒïŒäžã«ããã²ã³ååãå«ã
ïœâSiGeããæã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã
圢æããäºãåºæ¥ãã ã°ããŒæŸé»æ³ã«åŸã€ãŠãããã²ã³ååãå«ã第
äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã補é ããå Žåãåºæ¬ç
ã«ã¯ãäŸãã°ã·ãªã³ã³ååäŸçµŠçšã®åæã¬ã¹ãšãª
ãããã²ã³åç¡ çŽ ãšã²ã«ãããŠã ååäŸçµŠçšã®å
æã¬ã¹ãšãªãæ°ŽçŽ åã²ã«ãããŠã ãšArããHe
çã®ã¬ã¹çãšãæå®ã®æ··åæ¯ããã³ã¬ã¹æµéã«ãª
ãæ§ã«ããŠç¬¬äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒã圢æãã
å ç©å®€ã«å°å ¥ããã°ããŒæŸé»ãçèµ·ããŠããçã®
ã¬ã¹ã®ãã©ãºãé°å²æ°ã圢æããããšã«ãã€ãŠã
ææã®æ¯æäœïŒïŒïŒäžã«ç¬¬äžã®å±€é åïŒïŒ§ïŒïŒïŒ
ïŒã圢æãåŸããã®ã§ããããæ°ŽçŽ ååã®å°å ¥å²
åã®å¶åŸ¡ãäžå±€å®¹æã«ãªãæ§ã«å³ãçºã«ããçã®
ã¬ã¹ã«æŽã«æ°ŽçŽ ã¬ã¹åã¯æ°ŽçŽ ååãå«ãç¡ çŽ åå
ç©ã®ã¬ã¹ãææéæ··åããŠå±€åœ¢æããŠãè¯ãã åãåã¬ã¹ã¯åç¬çš®ã®ã¿ã§ãªãæå®ã®æ··åæ¯ã§
è€æ°çš®æ··åããŠäœ¿çšããŠãå·®æ¯ããªããã®ã§ã
ãã ã¹ããã¿ãªã³ã°æ³ãã€ãªã³ãã¬ãŒãã€ã³ã°æ³ã®
äœãã®å Žåã«ã圢æããã第äžã®å±€é åïŒïŒ§ïŒïŒ
ïŒïŒäžã«ããã²ã³ååãå°å ¥ããã«ã¯ãåèšã®ã
ãã²ã³ååç©åã¯ããã²ã³ååãå«ã çŽ ååç©
ã®ã¬ã¹ãå ç©å®€äžã«å°å ¥ããŠè©²ã¬ã¹ã®ãã©ãºãé°
å²æ°ã圢æããŠããã°è¯ããã®ã§ããã åã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«æ°ŽçŽ ååã
å°å ¥ããå Žåã«ã¯ãæ°ŽçŽ ååå°å ¥çšã®åæã¬ã¹ã
äŸãã°ããæãã¯åèšããã·ã©ã³é¡åã¯ïŒåã³
æ°ŽçŽ åã²ã«ãããŠã çã®ã¬ã¹é¡ãã¹ããã¿ãªã³ã°
çšã®å ç©å®€äžã«å°å ¥ããŠè©²ã¬ã¹é¡ã®ãã©ãºãé°å²
æ°ã圢æããŠããã°è¯ãã æ¬çºæã«ãããŠã¯ãããã²ã³ååå°å ¥çšã®åæ
ã¬ã¹ãšããŠäžèšãããããã²ã³ååç©æãã¯ãã
ã²ã³ãå«ãç¡ çŽ ååç©ãæå¹ãªãã®ãšããŠäœ¿çšã
ãããã®ã§ãããããã®ä»ã«HFãHClãHBrã
HIçã®ããã²ã³åæ°ŽçŽ ãSiH2F2ãSiH2I2ã
SiH2Cl2ãSiHCl3ãSiH2Br2ãSiHBr3çã®ããã²
ã³çœ®ææ°ŽçŽ åç¡ çŽ ãåã³GeHF3ãGeH2F2ã
GeH3FãGeHCl3ãGeH2Cl2ãGeH3Clã
GeHBr3ãGeH2Br2ãGeH3BrãGeHI3ã
GeH2I2ãGeH3Içã®æ°ŽçŽ åããã²ã³åã²ã«ãã
ãŠã çã®æ°ŽçŽ ååãæ§æèŠçŽ ã®ïŒã€ãšããããã²
ã³åç©ãGeF4ãGeCl4ãGeBr4ãGeI4ãGeF4ã
GeCl2ãGeBr2ãGeI2çã®ããã²ã³åã²ã«ãããŠ
ã ãçã ã®ã¬ã¹ç¶æ ã®æãã¯ã¬ã¹åãåŸãç©è³ªã
æå¹ãªç¬¬äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒåœ¢æçšã®åºçºç©
質ãšããŠæããäºãåºæ¥ãã ããçã®ç©è³ªã®äžãæ°ŽçŽ ååãå«ãããã²ã³å
ç©ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒåœ¢æã®éã«å±€äž
ã«ããã²ã³ååã®å°å ¥ãšåæã«é»æ°çæãã¯å é»
çç¹æ§ã®å¶åŸ¡ã«æ¥µããŠæå¹ãªæ°ŽçŽ ååãå°å ¥ãã
ãã®ã§ãæ¬çºæã«ãããŠã¯å¥œé©ãªããã²ã³å°å ¥çš
ã®åæãšããŠäœ¿çšãããã æ°ŽçŽ ååã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«æ§é
çã«å°å ¥ããã«ã¯ãäžèšã®ä»ã«H2ãæãã¯SiH4ã
Si2H6ãSi3H8ãSi4H10çã®æ°ŽçŽ åç¡ çŽ ãã²ã«ã
ããŠã ååãäŸçµŠããçºã®ã²ã«ãããŠã åã¯ã²ã«
ãããŠã ååç©ãšãæãã¯ãGeH4ãGe2H6ã
Ge3H8ãGe4H10ãGe5H10ãGe6H14ãGe7H16ã
Ge8H18ãGe9H20çã®æ°ŽçŽ åã²ã«ãããŠã ãšã·ãª
ã³ã³ååãäŸçµŠããçºã®ã·ãªã³ã³åã¯ã·ãªã³ã³å
åç©ãšããå ç©å®€äžã«å ±åãããŠæŸé»ãçèµ·ãã
ãäºã§ãè¡ãäºãåºæ¥ãã æ¬çºæã®å¥œãŸããäŸã«ãããŠã圢æããã第äž
ã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããæ°ŽçŽ ååã®
éãåã¯ããã²ã³ååã®éãåã¯æ°ŽçŽ ååãšãã
ã²ã³ååã®éã®åïŒïŒšïŒïŒžïŒã¯ã奜ãŸããã¯ã
0.01ã40ååïŒ ããã奜ãŸããã¯0.05ã30åå
ïŒ ãæé©ã«ã¯0.1ã25ååïŒ ãšãããã®ãæãŸã
ãã 第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«å«æãããæ°ŽçŽ
åååã¯ïŒåã³ããã²ã³ååã®éãå¶åŸ¡ããã«
ã¯ãäŸãã°æ¯æäœæž©åºŠåã¯ïŒåã³æ°ŽçŽ ååãæã
ã¯ããã²ã³ååãå«æãããçºã«äœ¿çšãããåºçº
ç©è³ªã®å ç©è£ 眮系å ãžå°å ¥ããéãæŸé»ã åçã
å¶åŸ¡ããŠããã°è¯ãã æ¬çºæã«æŒããŠãïœâSiïŒïŒšãïŒã§æ§æãã
ã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã¯ãåèšãã第äžã®
å±€é åïŒïŒ§ïŒïŒïŒïŒåœ¢æçšã®åºçºç©è³ªïŒïŒã®äž
ãããã²ã«ãããŠã ååäŸçµŠçšã®åæã¬ã¹ãšãªã
åºçºç©è³ªãé€ããåºçºç©è³ªã第äºã®å±€é åïŒïŒ³ïŒ
ïŒïŒïŒåœ¢æçšã®åºçºç©è³ªïŒïŒãã䜿çšããŠã第
äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒåœ¢æããå Žåãšãåæ§ã®
æ¹æ³ãšæ¡ä»¶ã«åŸã€ãŠåœ¢æããäºãåºæ¥ãã å³ã¡ãæ¬çºæã«ãããŠãïœâSiïŒïŒšãïŒã§æ§
æããã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã¯äŸãã°ã°ã
ãŒæŸé»æ³ãã¹ããã¿ãªã³ã°æ³ãæãã¯ã€ãªã³ãã¬
ãŒãã€ã³ã°æ³çã®æŸé»çŸè±¡ãå©çšããç空å ç©æ³
ã«ãã€ãŠåœ¢æããããäŸãã°ãã°ããŒæŸé»æ³ã«ã
ã€ãŠãïœâSiïŒïŒšãïŒã§æ§æããã第äºã®å±€é
åïŒïŒ³ïŒïŒïŒïŒã圢æããã«ã¯ãåºæ¬çã«ã¯åèš
ããã·ãªã³ã³ååãäŸçµŠãåŸãã·ãªã³ã³ååäŸçµŠ
çšã®åæã¬ã¹ãšå ±ã«ãå¿ èŠã«å¿ããŠæ°ŽçŽ ååå°å ¥
çšã®åã¯ïŒåã³ããã²ã³ååå°å ¥çšã®åæã¬ã¹
ããå éšãæžå§ãåŸãå ç©å®€å ã«å°å ¥ããŠã該å
ç©å®€å ã«ã°ããŒæŸé»ãçèµ·ãããäºãæå®äœçœ®ã«
èšçœ®ãããŠããæå®ã®æ¯æäœè¡šé¢äžã«ïœâSiïŒïŒšã
ïŒãããªãå±€ã圢æãããã°è¯ããåãã¹ãã
ã¿ãªã³ã°æ³ã§åœ¢æããå Žåã«ã¯ãäŸãã°ArãHe
çã®äžæŽ»æ§ã¬ã¹åã¯ããçã®ã¬ã¹ãããŒã¹ãšãã
æ··åã¬ã¹ã®é°å²æ°äžã§ã·ãªã³ã³ååã§æ§æããã
ã¿ãŒã²ãããã¹ããã¿ãªã³ã°ããéãæ°ŽçŽ ååå
ã¯ïŒåã³ããã²ã³ååå°å ¥çšã®ã¬ã¹ãã¹ããã¿ãª
ã³ã°çšã®å ç©å®€ã«å°å ¥ããŠããã°è¯ããæ¬çºæã«
æŒããŠã圢æããã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒäž
ã«å«æãããæ°ŽçŽ ååã®éãåã¯ããã²ã³ååã®
éãåã¯æ°ŽçŽ ååãšããã²ã³ååã®éã®åïŒïŒšïŒ
ïŒã¯ã奜ãŸããã¯ïŒã40ååïŒ ããã奜é©ã«ã¯
ïŒã30ååïŒ ãæé©ã«ã¯ïŒã25ååïŒ ãšãããã®
ãæãŸãããæ¬çºæã«ãããŠã第äžã®å±€ïŒïŒ©ïŒïŒ
ïŒïŒã«ççŽ ååã®å«æãããå±€é åïŒïŒ£ïŒãèšã
ãã«ã¯ã第äžã®å±€ïŒïŒïŒã®åœ¢æã®éã«ççŽ ååå°
å ¥çšã®åºçºç©è³ªãåèšãã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒ
圢æçšã®åºçºç©è³ªãšå ±ã«äœ¿çšããŠã圢æãããå±€
äžã«ãã®éãå¶åŸ¡ããªããå«æããŠããã°è¯ãã å±€é åïŒïŒ£ïŒã圢æããã®ã«ã°ããŒæŸé»æ³ãçš
ããå Žåã«ã¯ãåèšãã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒåœ¢
æçšã®åºçºç©è³ªã®äžããææã«åŸã€ãŠéžæããã
ãã®ã«ççŽ ååå°å ¥çšã®åºçºç©è³ªãå ããããã
ãã®ãããªççŽ ååå°å ¥çšã®åºçºç©è³ªãšããŠã¯ã
å°ãªããšãççŽ ååãæ§æååãšããã¬ã¹ç¶ã®ç©
質ãŸãã¯ã¬ã¹åãåŸãç©è³ªãã¬ã¹åãããã®ã®äž
ã®å€§æŠã®ãã®ã䜿çšããåŸãã äŸãã°ã·ãªã³ã³ååãæ§æååãšããåæã¬ã¹
ãšãççŽ ååãæ§æååãšããåæã¬ã¹ãšãå¿ èŠ
ã«å¿ããŠæ°ŽçŽ ååãŸãã¯ããã³ããã²ã³ååãæ§
æååãšããåæã¬ã¹ãšãææã®æ··åæ¯ã§æ··åã
ãŠäœ¿çšãããããŸãã¯ãã·ãªã³ã³ååãæ§æåå
ãšããåæã¬ã¹ãšãççŽ ååããã³æ°ŽçŽ ååãæ§
æååãšããåæã¬ã¹ãšããããããŸãææã®æ··
åæ¯ã§æ··åãããããããã¯ã·ãªã³ã³ååãæ§æ
ååãšããåæã¬ã¹ãšãã·ãªã³ã³ååãççŽ åå
ããã³æ°ŽçŽ ååã®ïŒã€ãæ§æååãšããåæã¬ã¹
ãšãæ··åããŠäœ¿çšããããšãã§ããã ãŸããå¥ã«ã¯ãã·ãªã³ã³ååãšæ°ŽçŽ ååãšãæ§
æååãšããåæã¬ã¹ã«ãççŽ ååãæ§æååãš
ããåæã¬ã¹ãæ··åããŠäœ¿çšããŠãè¯ãã ççŽ ååå°å ¥çšã®åæã¬ã¹ãšããŠæå¹ãªãã®ãš
ããŠã¯ãççŽ ååãšæ°ŽçŽ ååãšãæ§æååãšã
ããäŸãã°ççŽ æ°ïŒãïŒã®é£œåçåæ°ŽçŽ ãççŽ æ°
ïŒãïŒã®ãšãã¬ã³ç³»çåæ°ŽçŽ ççŽ æ°ïŒãïŒã®ã¢ã»
ãã¬ã³ç³»çåæ°ŽçŽ çãæããããã å ·äœçã«ã¯ã飜åçåæ°ŽçŽ ãšããŠã¯ãã¡ã¿ã³
ïŒCH4ïŒããšã¿ã³ïŒC2H6ïŒããããã³ïŒC3H8ïŒãïœ
âãã¿ã³ïŒïœâC4H10ïŒããã³ã¿ã³ïŒC5H12ïŒããš
ãã¬ã³ç³»çåæ°ŽçŽ ãšããŠã¯ããšãã¬ã³ïŒC2H4ïŒã
ãããã¬ã³ïŒC3H6ïŒãããã³âïŒïŒC4H8ïŒããã
ã³âïŒïŒC4H8ïŒãã€ãœããã¬ã³ïŒC4H8ïŒããã³ã
ã³ïŒC5H10ïŒãã¢ã»ãã¬ã³ç³»çåæ°ŽçŽ ãšããŠã¯ã
ã¢ã»ãã¬ã³ïŒC2H2ïŒãã¡ãã«ã¢ã»ãã¬ã³
ïŒC3H4ïŒãããã³ïŒC4H6ïŒçãæããããã ããçã®ä»ã«ã·ãªã³ã³ååãšççŽ ååãšæ°ŽçŽ å
åãšãæ§æååãšããåæã¬ã¹ãšããŠãSi
ïŒCH3ïŒ4ãSiïŒC2H5ïŒ4çã®ã±ã€åã¢ã«ãã«ãæãã
ããšãã§ããã æ¬çºæã«ãããŠã¯ãå±€é åïŒïŒ£ïŒäžã«ã¯ççŽ å
åã§åŸãããå¹æãæŽã«å©é·ãããçºã«ãççŽ å
åã«å ããŠãæŽã«é žçŽ ååãŸãã¯ïŒããã³çªçŽ å
åãå«æããããšãã§ããã é žçŽ ååãå±€é åïŒïŒ£ïŒã«å°å ¥ããããã®é žçŽ
ååå°å ¥çšã®åæã¬ã¹ãšããŠã¯ãäŸãã°é žçŽ
ïŒO2ïŒããªãŸã³ïŒO3ïŒãäžé žåçªçŽ ïŒNOïŒãäºé žå
çªçŽ ïŒNO2ïŒãäžäºé žåçªçŽ ïŒN2OïŒãäžäºé žå
çªçŽ ïŒN2O3ïŒãåäžé žåçªçŽ ïŒN2O4ïŒãäºäºé žå
çªçŽ ïŒN2O5ïŒãäžé žåçªçŽ ïŒNO3ïŒãã·ãªã³ã³å
åãšé žçŽ ååãšæ°ŽçŽ ååãšãæ§æååãšãããäŸ
ãã°ããžã·ãããµã³ïŒH3SiOSiH3ïŒãããªã·ãã
ãµã³ïŒH3SiOSiH2OSiH3ïŒçã®äœçŽã·ãããµã³
çãæããããšãã§ããã å±€é åïŒïŒ£ïŒã圢æããéã«äœ¿çšãããçªçŽ å
åå°å ¥çšã®åæã¬ã¹ã«æãåŸããã®ãšããŠæå¹ã«
䜿çšãããåºçºç©è³ªã¯ãçªçŽ ååãæ§æååãšã
ããããã¯çªçŽ ååãšæ°ŽçŽ ååãšãæ§æååãšã
ãäŸãã°çªçŽ ïŒN2ïŒãã¢ã³ã¢ãã¢ïŒNH3ïŒããã
ã©ãžã³ïŒH2NNH2ïŒãã¢ãžåæ°ŽçŽ ïŒHN3ïŒãã¢ãž
åã¢ã³ã¢ããŠã ïŒNH4N3ïŒçã®ã¬ã¹ç¶ãŸãã¯ã¬
ã¹åãåŸãçªçŽ ãçªåç©ããã³ã¢ãžåç©çã®çªçŽ
ååç©ãæããããšãã§ããããã®ä»ã«ãçªçŽ å
åã®å°å ¥ãå ããŠãããã²ã³ååã®å°å ¥ãè¡ãã
ãšããç¹ãããäžåŒåçªçŽ ïŒF3NïŒãååŒåçªçŽ
ïŒF4N2ïŒçã®ããã²ã³åçªçŽ ååç©ãæããããš
ãã§ããã ã¹ããã¿ãªã³ã°æ³ã«ãã€ãŠãççŽ ååãå«æã
ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã圢æããã«ã¯ãåçµæ¶
ãŸãã¯å€çµæ¶ã®ã·ãªã³ã³ãŠãšããŒãŸãã¯ã°ã©ãã¢
ã€ããŠãšããŒããŸãã¯ã·ãªã³ã³ååãšççŽ ååã
æ··åãããŠå«æãããŠãããŠãšããŒãã¿ãŒã²ãã
ãšããŠãããçãçš®ã ã®ã¬ã¹é°å²æ°äžã§ã¹ããã¿
ãªã³ã°ããããšã«ãã€ãŠè¡ãã°è¯ãã äŸãã°ãã·ãªã³ã³ãŠãšãŒããŒãã¿ãŒã²ãããšã
ãŠäœ¿çšããã°ãççŽ ååãšå¿ èŠã«å¿ããŠæ°ŽçŽ åå
ãŸãã¯ïŒããã³ããã²ã³ååãå°å ¥ããããã®å
æã¬ã¹ããå¿ èŠã«å¿ããŠçšéã¬ã¹ã§çšéããŠãã¹
ããã¿ãŒçšã®å ç©å®€äžã«å°å ¥ããããçã®ã¬ã¹ã®
ã¬ã¹ãã©ãºãã圢æããŠåèšã·ãªã³ã³ãŠãšãŒããŒ
ãã¹ããã¿ãªã³ã°ããã°è¯ãã ãŸããå¥ã«ã¯ãã·ãªã³ã³ååãšççŽ ååãšã¯
å¥ã ã®ã¿ãŒã²ãããšããŠããŸãã¯ã·ãªã³ã³ååãš
ççŽ ååã®æ··åããäžæã®ã¿ãŒã²ããã䜿çšãã
ããšã«ãã€ãŠãã¹ããã¿ãŒçšã®ã¬ã¹ãšããŠã®çšé
ã¬ã¹ã®é°å²æ°äžã§ãŸãã¯å°ãªããšãæ°ŽçŽ ååãŸã
ã¯ïŒããã³ããã²ã³ååãæ§æååãšããŠå«æã
ãã¬ã¹é°å²æ°äžã§ã¹ããã¿ãªã³ã°ããããšã«ãã€
ãŠæããããççŽ ååå°å ¥çšã®åæã¬ã¹ãšããŠ
ã¯ãå è¿°ããã°ããŒæŸé»ã®äŸã§ç€ºããåæã¬ã¹ã®
äžã®ççŽ ååå°å ¥çšã®åæã¬ã¹ãã¹ããã¿ãªã³ã°
ã®å Žåã«ãæå¹ãªã¬ã¹ãšããŠäœ¿çšããåŸãã æ¬çºæã«ãããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®åœ¢æ
ã®éã«ãççŽ ååã®å«æãããå±€é åïŒïŒ£ïŒãèš
ããå Žåã該局é åïŒïŒ£ïŒã«å«æãããççŽ åå
ã®ååžæ¿åºŠïŒ£ïŒïŒ£ïŒãå±€åæ¹åã«å€åãããŠãæ
æã®å±€åæ¹åã®ååžç¶æ ïŒdepth profileïŒãæ
ããå±€é åïŒïŒ£ïŒã圢æããã«ã¯ãã°ããŒæŸé»ã®
å Žåã«ã¯ãååžæ¿åºŠïŒ£ïŒïŒ£ïŒãå€åãããã¹ãç
çŽ ååå°å ¥çšã®åºçºç©è³ªã®ã¬ã¹ãããã®ã¬ã¹æµé
ãææã®å€åçæ²ç·ã«åŸã€ãŠé©å®å€åãããªã
ããå ç©å®€å ã«å°å ¥ããããšã«ãã€ãŠæãããã äŸãã°æåãããã¯å€éšé§åã¢ãŒã¿çã®éåžžçš
ããããŠããäœããã®æ¹æ³ã«ãããã¬ã¹æµè·¯ç³»ã®
éäžã«èšããããæå®ã®ããŒãã«ãã«ãã®éå£ã
挞æå€åãããæäœãè¡ãã°è¯ãããã®ãšããæµ
éã®å€åçã¯ç·åã§ããå¿ èŠã¯ãªããäŸãã°ãã€
ã³ã³çãçšããŠããããããèšèšãããå€åçæ²
ç·ãåŸãããšãã§ããã å±€é åïŒïŒ£ïŒãã¹ããã¿ãªã³ã°æ³ã«ãã€ãŠåœ¢æ
ããå ŽåãççŽ ååã®å±€åæ¹åã®ååžæ¿åºŠïŒ£ïŒïŒ£ïŒ
ãå±€åæ¹åã§å€åãããŠãççŽ ååã®å±€åæ¹åã®
ææã®ååžç¶æ ïŒdepth profileïŒã圢æããã«
ã¯ã第äžã«ã¯ãã°ããŒæŸé»æ³ã«ããå Žåãšåæ§
ã«ãççŽ ååå°å ¥çšã®åºçºç©è³ªãã¬ã¹ç¶æ ã§äœ¿çš
ãã該ã¬ã¹ãå ç©å®€äžãžå°å ¥ããéã®ã¬ã¹æµéã
ææã«åŸã€ãŠé©å®å€åãããããšã«ãã€ãŠæãã
ãã 第äºã«ã¯ãã¹ããã¿ãªã³ã°çšã®ã¿ãŒã²ãããã
äŸãã°ã·ãªã³ã³ååãšççŽ ååãšã®æ··åãããã¿
ãŒã²ããã䜿çšããã®ã§ããã°ãã·ãªã³ã³ååãš
ççŽ ååãšã®æ··åæ¯ããã¿ãŒã²ããã®å±€åæ¹åã«
ãããŠãäºãå€åãããŠããããšã«ãã€ãŠæãã
ãã 第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«ãäŒå°ç¹æ§ãæ¯é ã
ãç©è³ªãäŸãã°ã第æååæãã¯ç¬¬ïŒ¶æååã
æ§é çã«å°å ¥ããã«ã¯ã局圢æã®éã«ã第æå
åå°å ¥çšã®åºçºç©è³ªæãã¯ç¬¬ïŒ¶æååå°å ¥çšã®åº
çºç©è³ªãã¬ã¹ç¶æ ã§å ç©å®€äžã«ã第äºã®å±€é å
ïŒïŒ³ïŒïŒïŒïŒã圢æããçºã®ä»ã®åºçºç©è³ªãšå ±ã«
å°å ¥ããŠããã°è¯ãããã®æ§ãªç¬¬æååå°å ¥çš
ã®åºçºç©è³ªãšæãåŸããã®ãšããŠã¯ãåžžæž©åžžå§ã§
ã¬ã¹ç¶ã®åã¯ãå°ãªããšã局圢ææ¡ä»¶äžã§å®¹æã«
ã¬ã¹åãåŸããã®ãæ¡çšãããã®ãæãŸãããã
ã®æ§ãªç¬¬æååå°å ¥çšã®åºçºç©è³ªãšããŠå ·äœç
ã«ã¯ç¡ŒçŽ ååå°å ¥çšãšããŠã¯B2H6ãB4H10ã
B5H9ãB5H11ãB6H10ãB6H12ãB6H14çã®æ°ŽçŽ
åç¡ŒçŽ ãBF3ãBCl3ãBBr3çã®ããã²ã³åç¡ŒçŽ
çãæããããããã®ä»ãAlCl3ãGeCl4ãGe
ïŒCH3ïŒ4ãInCl3ãTlCl3çãæããããšãåºæ¥ãã 第æååå°å ¥çšã®åºçºç©è³ªãšããŠãæ¬çºæã«
ãããŠæå¹ã«äœ¿çšãããã®ã¯ãçååå°å ¥çšãšã
ãŠã¯ãPH3ãP2H4çã®æ°ŽçŽ åçãPH4IãPF3ã
PF5ãPCl3ãPCl5ãPBr3ãPBr5ãPI3çã®ããã²
ã³åçãæããããããã®ä»ãAsH3ãAsF3ã
AsCl3ãAsBr3ãAsF5ãSbH3ãSbF3ãSbF5ã
SbCl3ãSbCl5ãBiH3ãBiCl3ãBiBr3çã第æ
ååå°å ¥çšã®åºçºç©è³ªã®æå¹ãªãã®ãšããŠæãã
ããšãåºæ¥ãã æ¬çºæã«æŒããŠã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒãæ§æ
ããäŒå°ç¹æ§ãæ¯é ããç©è³ªãå«æé ããŠæ¯æäœ
ïŒïŒïŒåŽã«ååšããŠèšããããå±€é åïŒPNïŒã®
å±€åãšããŠã¯ã該局é åïŒPNïŒãšè©²å±€é å
ïŒPNïŒäžã«åœ¢æããã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã
æ§æããä»ã®å±€é åãšã«èŠæ±ãããç¹æ§ã«å¿ããŠ
ææã«åŸã€ãŠé©å®æ±ºå®ããããã®ã§ãããããã®
äžéãšããŠã¯ã奜ãŸããã¯30â«ä»¥äžããã奜é©ã«
ã¯40â«ä»¥äžãæé©ã«ã¯ã50â«ä»¥äžãšãããã®ãæ
ãŸãããåãåèšå±€é åïŒPNïŒäžã«å«æããã
äŒå°ç¹æ§ãæ¯é ããç©è³ªã®å«æéã30ååppm以
äžãšãããå Žåã«ã¯ã該局é åïŒPNïŒã®å±€åã®
äžéãšããŠã¯ã奜ãŸããã¯10Ό以äžã奜é©ã«ã¯8ÎŒ
以äžãæé©ã«ã¯5Ό以äžãšãããã®ãæãŸããã 第ïŒå³ã«ç€ºãããå å°é»éšæïŒïŒïŒã«ãããŠ
ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«åœ¢æããã第äºã®
å±€ïŒïŒïŒïŒïŒã¯èªç±è¡šé¢ïŒïŒïŒãæããäž»ã«è
湿æ§ãé£ç¶ç¹°è¿ã䜿çšç¹æ§ãé»åçèå§æ§ã䜿çš
ç°å¢ç¹æ§ãèä¹ æ§ã«ãããŠæ¬çºæã®ç®çãéæã
ãçºã«èšããããã ãŸããæ¬çºæã«ãããŠã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒ
ïŒãšç¬¬äºã®å±€ïŒïŒïŒïŒïŒãšãæ§æããéæ¶è³ªæ
æã®åã ãã·ãªã³ã³ååãšããå ±éã®æ§æèŠçŽ ã
æããŠããã®ã§ãäž¡å±€ïŒïŒ©ïŒïŒïŒïŒããã³ïŒïŒ
ïŒïŒïŒã®ç©å±€çé¢ã«ãããŠååŠçãªå®å®æ§ã®ç¢ºä¿
ãå åæãããŠããã æ¬çºæã«ããã第äºã®å±€ïŒïŒïŒïŒïŒã¯ãã·ãª
ã³ã³ååãšçªçŽ ååãšãå¿ èŠã«å¿ããŠæ°ŽçŽ ååãŸ
ãã¯ïŒããã³ããã²ã³ååãšã®å«ãéæ¶è³ªææ
ïŒä»¥åŸããïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yããšèšãã
äœããïŒïŒïœãïœïŒïŒïŒã§æ§æãããã ïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yã§æ§æããã第äº
ã®å±€ïŒïŒïŒïŒïŒã®åœ¢æã¯ãã°ããŒæŸé»æ³ãã¹ã
ãã¿ãªã³ã°æ³ããšã¬ã¯ããã³ããŒã æ³çã«ãã€ãŠ
æããããããçã®è£œé æ³ã¯ã補é æ¡ä»¶ãèšåè³
æ¬æäžã®è² è·çšåºŠã補é èŠæš¡ãäœè£œãããå å°é»
éšæã«ææãããç¹æ§çã®èŠå ã«ãã€ãŠé©å®éžæ
ãããŠæ¡çšãããããææããç¹æ§ãæããå å°
é»éšæã補é ããããã®äœææ¡ä»¶ã®å¶åŸ¡ãæ¯èŒç
容æã§ããããã€ã·ãªã³ã³ååãšå ±ã«çªçŽ ååã
ãã³ããã²ã³ååããäœè£œãã第äºã®å±€ïŒïŒïŒ
ïŒïŒäžã«å°å ¥ããã®ã容æã«è¡ããçã®å©ç¹ãæ
ããã°ããŒæŸé»æ³ãããã¯ã¹ããã¿ãªã³ã°æ³ã奜
é©ã«æ¡çšãããã æŽã«ãæ¬çºæã«ãããŠã¯ãã°ããŒæŸé»æ³ãšã¹ã
ãã¿ãªã³ã°æ³ãšãåäžè£ 眮系å ã§äœµçšããŠç¬¬äºã®
å±€ïŒïŒïŒïŒïŒã圢æããŠãããã ã°ããŒæŸé»æ³ã«ãã€ãŠç¬¬äºã®å±€ïŒïŒïŒïŒïŒã
圢æããã«ã¯ãïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-y圢æ
çšã®åæã¬ã¹ãå¿ èŠã«å¿ããŠçšéã¬ã¹ãšæå®éã®
æ··åæ¯ã§æ··åããŠãæ¯æäœïŒïŒïŒã®èšçœ®ããŠãã
ç空å ç©å®€ã«å°å ¥ãããã®å°å ¥ãããã¬ã¹ããã°
ããŒæŸé»ãçèµ·ãããããšã«ãã€ãŠã¬ã¹ãã©ãºã
åããŠãåèšæ¯æäœïŒïŒïŒäžã«æ¢ã«åœ¢æãããŠã
ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«ãïœâïŒSixN1-xïŒy
ïŒïŒšïŒïŒžïŒ1-yãå ç©ãããã°ããã æ¬çºæã«ãããŠãïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-y
圢æçšã®åæã¬ã¹ãšããŠã¯ãã·ãªã³ã³ååãçªçŽ
ååãæ°ŽçŽ ååãããã²ã³ååã®äžã®å°ãªããšã
äžã€ãæ§æååãšããã¬ã¹ç¶ã®ç©è³ªãŸãã¯ã¬ã¹å
ãåŸãç©è³ªãã¬ã¹åãããã®ã®äžã®å€§æŠã®ãã®ã
䜿çšããåŸãã ã·ãªã³ã³ååãçªçŽ ååãæ°ŽçŽ ååãããã²ã³
ååã®äžã®äžã€ãšããŠã·ãªã³ã³ååãæ§æååãš
ããåæã¬ã¹ã䜿çšããå Žåã¯ãäŸãã°ã·ãªã³ã³
ååãæ§æååãšããåæã¬ã¹ãšãçªçŽ ååãæ§
æååãšããåæã¬ã¹ãšãå¿ èŠã«å¿ããŠæ°ŽçŽ åå
ãæ§æååãšããåæã¬ã¹ãŸãã¯ïŒããã³ããã²
ã³ååãæ§æååãšããåæã¬ã¹ãšãææã®æ··å
æ¯ã§æ··åããŠäœ¿çšãããããŸãã¯ã·ãªã³ã³ååã
æ§æååãšããåæã¬ã¹ãšãçªçŽ ååããã³æ°ŽçŽ
ååãæ§æååãšããåæã¬ã¹ãŸãã¯ïŒããã³çª
çŽ ååããã³ããã²ã³ååãæ§æååãšããåæ
ã¬ã¹ãšããããããŸããææã®æ··åæ¯ã§æ··åãã
ãããããã¯ã·ãªã³ã³ååãæ§æååãšããåæ
ã¬ã¹ãšãã·ãªã³ã³ååãçªçŽ ååããã³æ°ŽçŽ åå
ã®ïŒã€ã®æ§æååãšããåæã¬ã¹ãŸãã¯ãã·ãªã³
ã³ååãçªçŽ ååããã³ããã²ã³ååã®ïŒã€ãæ§
æååãšããåæã¬ã¹ãšãæ··åããŠäœ¿çšããããš
ãã§ããã ãŸããå¥ã«ã¯ãã·ãªã³ã³ååãšæ°ŽçŽ ååãšãæ§
æååãšããåæã¬ã¹ã«çªçŽ ååãæ§æååãšã
ãåæã¬ã¹ãæ··åããŠäœ¿çšããŠãè¯ãããã·ãªã³
ã³ååãšããã²ã³ååãšãæ§æååãšããåæã¬
ã¹ã«çªçŽ ååãæ§æååãšããåæã¬ã¹ãæ··åã
ãŠäœ¿çšããŠãããã æ¬çºæã«ãããŠç¬¬äºã®å±€ïŒïŒïŒïŒïŒäžã«å«æ
ãããããã²ã³ååãšããŠå¥œé©ãªã®ã¯ããçŽ ãå¡©
çŽ ãèçŽ ããšãŠçŽ ã§ãããæ®ã«ããçŽ ãå¡©çŽ ãæ
ãŸãããã®ã§ããã æ¬çºæã«ãããŠã第äºã®å±€ïŒïŒïŒïŒïŒã圢æ
ããã®ã«æå¹ã«äœ¿çšãããåæã¬ã¹ãšæãåŸãã
ã®ãšããŠã¯ãåžžæž©åžžå§ã«ãããŠã¬ã¹ç¶æ ã®ãã®ãŸ
ãã¯å®¹æã«ã¬ã¹åãåŸãç©è³ªãæããããšãã§ã
ãã 第äºã®å±€ïŒïŒïŒïŒïŒãäžèšã®éæ¶è³ªææã§æ§
æããå Žåã®å±€åœ¢ææ³ãšããŠã¯ãã°ããŒæŸé»æ³ã
ã¹ããã¿ãªã³ã°æ³ãã€ãªã³ã€ã³ãã©ã³ããŒã·ãšã³
æ³ãã€ãªã³ãã¬ãŒãã€ã³ã°æ³ããšã¬ã¯ããããŒã
æ³çãæãããããããçã®è£œé æ³ã¯ã補é æ¡
件ãèšåè³æ¬æäžã®è² è·çšåºŠã補é èŠæš¡ãäœè£œã
ããå å°é»éšæã«ææãããç¹æ§çã®èŠå ã«ãã€
ãŠé©å®éžæãããŠæ¡çšãããããææããç¹æ§ã
æããå å°é»éšæã補é ããçºã®äœè£œæ¡ä»¶ã®å¶åŸ¡
ãæ¯èŒç容æã§ããããã€ã·ãªã³ã³ååãšå ±ã«çª
çŽ ååãå¿ èŠã«å¿ããŠæ°ŽçŽ ååãã·ãªã³ã³ååã
äœè£œãã第äºã®å±€ïŒïŒïŒïŒïŒäžã«å°å ¥ããã®ã
容æã«è¡ããçã®å©ç¹ãæããã°ããŒæŸé»æ³ãã
ãã¯ã¹ããã¿ãªã³ã°æ³ã奜é©ã«æ¡çšãããã æŽã«ãæ¬çºæã«ãããŠã¯ãã°ããŒæŸé»æ³ãšã¹ã
ãã¿ãªã³ã°æ³ãšãåäžè£ 眮系å ã§äœµçšããŠç¬¬äºã®
å±€ïŒïŒïŒïŒïŒã圢æããŠãè¯ãã ã°ããŒæŸé»æ³ã«ãã€ãŠãïœâSiNïŒïŒšãïŒã§
æ§æããã第äºã®å±€ïŒïŒïŒïŒïŒã圢æããã«
ã¯ãåºæ¬çã«ã¯ã·ãªã³ã³ååãäŸçµŠãåŸãã·ãªã³
ã³ååäŸçµŠçšã®åæã¬ã¹ãšçªçŽ ååå°å ¥çšã®åæ
ã¬ã¹ãšãå¿ èŠã«å¿ããŠæ°ŽçŽ ååå°å ¥çšã®ãŸãã¯ïŒ
ããã³ããã²ã³ååå°å ¥çšã®åæã¬ã¹ããå éšã
æžå§ã«ãåŸãå ç©å®€å ã«å°å ¥ããŠã該å ç©å®€å ã«
ã°ããŒæŸé»ãçèµ·ãããäºãæå®äœçœ®ã«èšçœ®ãã
ãŠããæå®ã®ç¬¬äžã®å±€ïŒïŒ©ïŒïŒïŒïŒäžã«ïœâSiN
ïŒïŒšãïŒãããªã第äºã®å±€ïŒïŒïŒïŒïŒã圢æ
ãããã°è¯ãã ãŸããã¹ããã¿ãªã³ã°æ³ã§ç¬¬äºã®å±€ïŒïŒïŒïŒ
ïŒã圢æããå Žåã«ã¯ãäŸãã°æ¬¡ã®ããã«ãªãã
ãã 第äžã«ã¯ãäŸãã°ArãHeçã®äžæŽ»æ§ã¬ã¹ãŸã
ã¯ããçã®ã¬ã¹ãããŒã¹ãšããæ··åã¬ã¹ã®é°å²æ°
äžã§ã·ãªã³ã³ååã§æ§æãããã¿ãŒã²ãããã¹ã
ãã¿ãªã³ã°ããéãçªçŽ ååå°å ¥çšã®åæã¬ã¹
ããå¿ èŠã«å¿ããŠæ°ŽçŽ ååå°å ¥çšã®ãŸãã¯ïŒãã
ã³ããã²ã³ååå°å ¥çšã®åæã¬ã¹ãšå ±ã«ã¹ããã¿
ãªã³ã°ãè¡ãç空å ç©å®€å ã«å°å ¥ããŠããã°è¯
ãã 第äºã«ã¯ãã¹ããã¿ãªã³ã°çšã®ã¿ãŒã²ãããšã
ãŠSi3N4ã§æ§æãããã¿ãŒã²ãããããããã¯ã·
ãªã³ã³ååã§æ§æãããã¿ãŒã²ãããšSi3N4ã§æ§
æãããã¿ãŒã²ããã®äºæãããŸãã¯ã·ãªã³ã³å
åãšSi3N4ãšã§æ§æãããã¿ãŒã²ããã䜿çšãã
ããšã§åœ¢æããã第äºã®å±€ïŒïŒïŒïŒïŒäžãžçªçŽ
ååãå°å ¥ããããšãã§ããããã®éãåèšã®çª
çŽ ååå°å ¥çšã®åæã¬ã¹ã䜵ããŠäœ¿çšããã°ãã
ã®æµéãå¶åŸ¡ããããšã§ç¬¬äºã®å±€ïŒïŒïŒïŒïŒäž
ã«å°å ¥ãããçªçŽ ååã®éãä»»æã«å¶åŸ¡ããããš
ã容æã§ããã 第äºã®å±€ïŒïŒïŒïŒïŒäžãžå°å ¥ãããçªçŽ åå
ã®å«æéã¯ãçªçŽ ååå°å ¥çšã®åæã¬ã¹ãå ç©å®€
äžãžå°å ¥ãããéã®æµéãå¶åŸ¡ãããããŸãã¯çª
çŽ ååå°å ¥çšã®ã¿ãŒã²ããäžã«å«æãããçªçŽ å
åã®å²åãã該ã¿ãŒã²ãããäœæããéã«èª¿æŽã
ããããããã¯ããã®äž¡è ãè¡ãããšã«ãã€ãŠã
ææã«åŸã€ãŠä»»æã«å¶åŸ¡ããããšãã§ããã æ¬çºæã«ãããŠäœ¿çšãããã·ãªã³ã³ååäŸçµŠçš
ã®åæã¬ã¹ãšãªãåºçºç©è³ªãšããŠã¯ãSiH4ã
Si2H6ãSi3H8ãSi4H10çã®ã¬ã¹ç¶æ ã®ãŸãã¯ã¬
ã¹åãåŸãæ°ŽçŽ åç¡ çŽ ïŒã·ã©ã³é¡ïŒã䜿çšããã
ãã®ãšããŠæããããæ®ã«ãå±€äœæäœæ¥ã®æ±ãæ
ããã·ãªã³ã³ååäŸçµŠå¹çã®è¯ãçã®ç¹ã§SiH4ã
Si2H6ã奜ãŸãããã®ãšããŠæãããããããç
ã®åºçºç©è³ªã䜿çšããã°ãå±€äœææ¡ä»¶ãé©åã«éž
æããããšã«ãã€ãŠåœ¢æããã第äºã®å±€ïŒïŒïŒ
ïŒïŒäžã«ã·ãªã³ã³ååãšå ±ã«æ°ŽçŽ ååãå°å ¥ãåŸ
ãã ã·ãªã³ã³ååäŸçµŠçšã®åæã¬ã¹ãšãªãæå¹ãªåº
çºç©è³ªãšããŠã¯ãäžèšã®æ°ŽçŽ åç¡ çŽ ã®ä»ã«ããã
ã²ã³ååãå«ãç¡ çŽ ååç©ãæè¬ãããã²ã³åå
ã§çœ®æãããã·ã©ã³èªå°äœãå ·äœçã«ã¯äŸãã°
SiF4ãSi2F6ãSiCl4ãSiBr4çã®ããã²ã³åç¡ çŽ
ã奜ãŸãããã®ãšããŠæããããšãã§ããã æŽã«ã¯ãSiH2F2ãSiH2I2ãSiH2Cl2ãSiHCl2ã
SiH2Br2ãSiHBr2çã®ããã²ã³çœ®ææ°ŽçŽ åç¡ çŽ ã
çã ã®ã¬ã¹ç¶æ ã®ãããã¯ã¬ã¹åãåŸããæ°ŽçŽ å
åãæ§æèŠçŽ ã®ïŒã€ãšããããã²ã³åç©ãæå¹ãª
第äºã®å±€ïŒïŒïŒïŒïŒã®åœ¢æã®çºã®ã·ãªã³ã³åå
äŸçµŠçšã®åºçºç©è³ªãšããŠæããäºãã§ããã ããçã®ããã²ã³ååãå«ãç¡ çŽ ååç©ã䜿çš
ããå Žåã«ããåè¿°ããããã«å±€åœ¢ææ¡ä»¶ã®é©å
ãªéžæã«ãã€ãŠã圢æããã第äºã®å±€ïŒïŒïŒïŒ
ïŒäžã«ã·ãªã³ã³ååãšå ±ã«ãããã²ã³ååãå°å ¥
ããããšãã§ããã äžèšããåºçºç©è³ªã®äžã§æ°ŽçŽ ååãå«ãã·ãªã³
ã³åç¡ çŽ ååç©ã¯ã第äºã®å±€ïŒïŒïŒïŒïŒã®åœ¢æ
ã®éã«ãå±€äžã«ããã²ã³ååã®å°å ¥ãšåæã«é»æ°
çãããã¯å é»çç¹æ§ã®å¶åŸ¡ã«æ¥µããŠæå¹ãªæ°ŽçŽ
ååãå°å ¥ãããã®ã§ãæ¬çºæã«ãããŠã¯å¥œé©ãª
ããã²ã³ååå°å ¥çšã®åºçºç©è³ªãšããŠäœ¿çšãã
ãã æ¬çºæã«ãããŠç¬¬äºã®å±€ïŒïŒïŒïŒïŒã圢æã
ãéã«äœ¿çšãããããã²ã³ååå°å ¥çšã®åæã¬ã¹
ãšãªãæå¹ãªåºçºç©è³ªãšããŠã¯ãäžèšãããã®ã®
ä»ã«ãäŸãã°ãããçŽ ãå¡©çŽ ãèçŽ ããšãŠçŽ ã®ã
ãã²ã³ã¬ã¹ãBrFãClFãClF3ãBrF3ãBrF5ã
IF3ãIF7ãIClãIBrçã®ããã²ã³éååç©ãHFã
HClãHBrãHIçã®ã·ãªã³ã³åæ°ŽçŽ ãæããã
ãšãã§ããã 第äºã®å±€ïŒïŒïŒïŒïŒã圢æããéã«äœ¿çšãã
ãçªçŽ ååå°å ¥çšã®åæã¬ã¹ã«æãåŸããã®ãšã
ãŠæå¹ã«äœ¿çšãããåºçºç©è³ªã¯ãçªçŽ ååãæ§æ
ååãšããããããã¯çªçŽ ååãšæ°ŽçŽ ååãšãæ§
æååãšããäŸãã°çªçŽ ïŒN2ïŒãã¢ã³ã¢ãã¢
ïŒNH3ïŒãããã©ãžã³ïŒH2NNH2ïŒãã¢ãžåæ°ŽçŽ
ïŒHN3ïŒãã¢ãžåã¢ã³ã¢ããŠã ïŒNH4N3ïŒçã®ã¬
ã¹ç¶ã®ãŸãã¯ã¬ã¹åãåŸãçªçŽ ãçªåç©ããã³ã¢
ãžåç©çã®çªçŽ ååç©ãæããããšãã§ãããã
ã®ä»ã«ãçªçŽ ååã®å°å ¥ã«å ããŠãããã²ã³åå
ã®å°å ¥ãè¡ãããšããç¹ãããåºçºç©è³ªãšããŠ
ã¯ãäžåŒåçªçŽ ïŒF3NïŒãååŒåçªçŽ ïŒF4N2ïŒç
ã®ã·ãªã³ã³åçªçŽ ååç©ãæããããšãã§ããã æ¬çºæã«ãããŠã第äºã®å±€ïŒïŒïŒïŒïŒãã°ã
ãŒæŸé»æ³ãŸãã¯ã¹ããã¿ãªã³ã°æ³ã§åœ¢æããéã«
䜿çšãããçšéã¬ã¹ãšããŠã¯ãæè¬ãåžã¬ã¹ãäŸ
ãã°HeãNeãArçã奜é©ãªãã®ãšããŠæãã
ããšãã§ããã æ¬çºæã«ããã第äºã®å±€ïŒïŒïŒïŒïŒã¯ããã®
èŠæ±ãããç¹æ§ãææéãã«äžããããããã«æ³š
ææ·±ã圢æãããã ããªãã¡ãã·ãªã³ã³ååãçªçŽ ååãå¿ èŠã«å¿
ããŠæ°ŽçŽ ååãŸãã¯ïŒããã³ããã²ã³ååãæ§æ
ååãšããç©è³ªã¯ããã®äœææ¡ä»¶ã«ãã€ãŠæ§é ç
ã«ã¯çµæ¶ããã¢ã¢ã«ãã€ã¹ãŸã§ã®åœ¢æ ãåããé»
æ°ç©æ§çã«ã¯ãå°é»æ§ããåå°äœæ§ãããã«ã¯ã
絶çžæ§ãŸã§ã®éã®æ§è³ªã瀺ãããŸããå å°é»çæ§
質ããéå å°é»çæ§è³ªã瀺ããããã§ãæ¬çºæã«
ãããŠã¯ãç®çã«å¿ããææã®ç¹æ§ãæããïœâ
ïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yã圢æãããããã«ãæ
æã«åŸã€ãŠãã®äœææ¡ä»¶ã®éžæãå³å¯ã«æãã
ãã äŸãã°ã第äºã®å±€ïŒïŒïŒïŒïŒãé»æ°çèå§æ§
ã®åäžãäž»ãªç®çãšããŠèšããã«ã¯ãïœâïŒSix
N1-xïŒyïŒïŒšïŒïŒžïŒ1-yã¯äœ¿çšç°å¢ã«ãããŠé»æ°çµ¶çž
æ§çæåã®é¡èãªéæ¶è³ªææãšããŠäœæãããã ãŸããé£ç¶ç¹°è¿ã䜿çšç¹æ§ã䜿çšç°å¢ç¹æ§ã®å
äžãäž»ããç®çãšããŠç¬¬äºã®å±€ïŒïŒïŒïŒïŒãèš
ããããå Žåã«ã¯ãäžèšã®é»æ°çµ¶çžæ§ã®åºŠåã¯ã
ãçšåºŠç·©åãããç §å°ãããå ã«å¯ŸããŠããçšåºŠ
ã®æ床ãæããéæ¶è³ªææãšããŠïœâïŒSixN1-xïŒy
ïŒïŒšïŒïŒžïŒ1-yãäœæãããã 第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®è¡šé¢ã«ãïœâïŒSix
N1-xïŒyïŒïŒšïŒïŒžïŒ1-yããæã第äºã®å±€ïŒïŒïŒïŒ
ïŒã圢æããéã«ãããã局圢æäžã®æ¯æäœæž©åºŠ
ã¯ã圢æãããå±€ã®æ§é ããã³ç¹æ§ãå·Šå³ããé
èŠãªå åã§ãããæ¬çºæã«ãããŠã¯ãç®çãšãã
ç¹æ§ãæããïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yãææ
éãã«äœæããåŸãããã«å±€äœææã®æ¯æäœæž©åºŠ
ãå³å¯ã«å¶åŸ¡ãããã®ãæãŸãããæ¬çºæã«ãã
ããææã®ç®çãå¹æçã«éæãããããã®ç¬¬äº
ã®å±€ïŒïŒïŒïŒïŒã®åœ¢ææ³ã«äœµããŠé©å®æé©ç¯å²
ã®æ¯æäœæž©åºŠãéžæãããŠã第äºã®å±€ïŒïŒïŒïŒ
ïŒã®åœ¢æãå®è¡ãããããå±€äœææã®æ¯æäœæž©åºŠ
ã¯å¥œãŸããã¯ã20ã400âããã奜é©ã«ã¯50ã350
âãæé©ã«ã¯100ã300âãšãããã®ãæãŸããã
ã®ã§ããã 第äºã®å±€ïŒïŒïŒïŒïŒã®åœ¢æã«ã¯ãå±€ãæ§æã
ãååã®çµææ¯ã®åŸ®åŠãªå¶åŸ¡ãå±€åã®å¶åŸ¡ãä»ã®
æ¹æ³ã«æ¯ã¹ãŠæ¯èŒç容æã§ããäºçã®ããã«ãã°
ããŒæŸé»æ³ãã¹ããã¿ãªã³ã°æ³ã®æ¡çšãæå©ã§ã
ãããããçã®å±€åœ¢ææ³ã§ç¬¬äºã®å±€ïŒïŒïŒïŒïŒ
ã圢æããå Žåã«ã¯ãåèšã®æ¯æäœæž©åºŠãšåæ§ã«
局圢æã®éã®æŸé»ãã¯ãŒããäœæãããïœâïŒSix
N1-xïŒyïŒïŒšïŒïŒžïŒ1-yã®ç¹æ§ãå·Šå³ããéèŠãªå å
ã®äžã€ã§ããã æ¬çºæã«ãããç®çãéæãããããã®ç¹æ§ã
æããïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yãçç£æ§è¯ã
å¹æçã«äœæãããããã®æŸé»ãã¯ãŒæ¡ä»¶ãšããŠ
ã¯ã奜ãŸããã¯1.0ã300Wããã奜é©ã«ã¯2.0ã
250Wãæé©ã«ã¯5.0ã200Wãšãããã®ãæãŸã
ããã®ã§ããã å ç©å®€å ã®ã¬ã¹å§ã¯å¥œãŸããã¯0.01ã1Torrã
ãã奜é©ã«ã¯ã0.1ã0.5TorrçšåºŠãšãããã®ãæ
ãŸããã æ¬çºæã«ãããŠã第äºã®å±€ïŒïŒïŒïŒïŒãäœæ
ããããã®æ¯æäœæž©åºŠããã³æŸé»ãã¯ãŒã®æãŸã
ãæ°å€ç¯å²ãšããŠã¯åèšããç¯å²ã®å€ãæããã
ããããããããçã®å±€äœæãã¢ã¯ã¿ãŒã¯ãç¬ç«
çã«å¥ã ã«æ±ºãããããã®ã§ã¯ãªããææç¹æ§ã®
ïœâïŒSixN1-xïŒyïŒïŒšïŒïŒžïŒ1-yããæã第äºã®å±€
ïŒïŒïŒïŒïŒã圢æãããããã«çžäºçææ©çé¢
é£æ§ã«åºã¥ããŠæé©å€ã決ããããã®ãæãŸã
ãã æ¬çºæã®å å°é»éšæã«ããã第äºã®å±€ïŒïŒïŒã«
å«æãããçªçŽ ååã®éã¯ã第äºã®å±€ïŒïŒïŒã®äœ
ææ¡ä»¶ãšåæ§ãæ¬çºæã®ç®çãéæããææã®ç¹
æ§ãåŸããã第äºã®å±€ïŒïŒïŒïŒïŒã圢æããã
éèŠãªå åã§ãããããã§ããã®ç¬¬äºã®å±€ïŒïŒ
ïŒïŒïŒã«å«æãããçªçŽ ååã®éã¯ã第äºã®å±€
ïŒïŒïŒïŒïŒãæ§æããéæ¶è³ªææã®çš®é¡ããã³
ãã®ç¹æ§ã«å¿ããŠé©å®ææã«å¿ããŠæ±ºããããã
ã®ã§ããã ããªãã¡ãåèšäžè¬åŒïœâïŒSixN1-xïŒyïŒïŒšïŒ
ïŒ1-yã§ç€ºãããéæ¶è³ªææã¯ã倧å¥ãããšãã·
ãªã³ã³ååãšçªçŽ ååãšã§æ§æãããéæ¶è³ªææ
ïŒä»¥åŸããïœâSiaN1-aããšèšããäœããïŒïŒïœïŒ
ïŒïŒãã·ãªã³ã³ååãšçªçŽ ååãšæ°ŽçŽ ååãšã§æ§
æãããéæ¶è³ªææïŒä»¥åŸãïœâïŒSibN1-bïŒcH1-c
ãšèšããäœããïŒïŒïœãïœïŒïŒïŒãã·ãªã³ã³åå
ãšçªçŽ ååãšããã²ã³ååãšå¿ èŠã«å¿ããŠæ°ŽçŽ å
åãšã§æ§æãããéæ¶è³ªææïŒä»¥åŸããïœâïŒSid
N1-dïŒeïŒïŒšïŒïŒžïŒ1-eããšèšããäœãïŒïŒïœãïœ ïŒ
ïŒïŒã«ããããåé Œãããã æ¬çºæã«ãããŠã第äºã®å±€ïŒïŒïŒïŒïŒãïœâ
SiaN1-aã§æ§æãããå Žåã第äºã®å±€ïŒïŒïŒïŒ
ïŒã«å«æãããçªçŽ ååã®éã¯ã奜ãŸããã¯ïŒÃ
10-3ã60ååïŒ ããã奜é©ã«ã¯ïŒã50ååïŒ ãæ
é©ã«ã¯10ã45ååïŒ ãšãããã®ãæãŸãããã®ã§
ãããããªãã¡ãå ã®ïœâSiaN1-aã®ïœã®è¡šç€ºã§
è¡ãã°ãïœã奜ãŸããã¯0.4ã0.99999ããã奜é©
ã«ã¯0.5ã0.99ãæé©ã«ã¯0.55ã0.9ã§ããã æ¬çºæã«ãããŠã第äºã®å±€ïŒïŒïŒïŒïŒãïœâ
ïŒSibN1-bïŒcH1-cã§æ§æãããå Žåã第äºã®å±€
ïŒïŒïŒïŒïŒã«å«æãããçªçŽ ååã®éã¯ã奜ãŸ
ããã¯ïŒÃ10-3ã55ååïŒ ãšããããã奜ãŸãã
ã¯ïŒã55ååïŒ ãæé©ã«ã¯10ã55ååïŒ ãšããã
ã®ãæãŸãããã®ã§ãããããã«ãæ°ŽçŽ ååã®å«
æéãšããŠã¯ã奜ãŸããã¯ïŒã40ååïŒ ããã奜
ãŸããã¯ïŒã35ååïŒ ãæé©ã«ã¯ïŒã30ååïŒ ãš
ãããã®ãæãŸãããããçã®ç¯å²ã«æ°ŽçŽ ååå«
æéãããå Žåã«åœ¢æãããå å°é»éšæã¯ãå®é
é¢ã«ãããŠåªãããã®ãšããŠå åé©çšããåŸãã ããªãã¡ãå ã®ïœâïŒSibN1-bïŒcH1-cã®ïœããã³
ïœè¡šç€ºã§è¡ãã°ãïœãæãŸããã¯0.45ã0.99999ã
ãã奜é©ã«ã¯0.45ã0.99ãæé©ã«ã¯0.45ã0.9ã§ã
ããïœã奜ãŸããã¯0.6ã0.99ããã奜é©ã«ã¯0.65
ã0.98ãæé©ã«ã¯0.7ã0.95ã§ããã®ãæãŸããã 第äºã®å±€ïŒïŒïŒïŒïŒãïœâïŒSidN1-dïŒeïŒïŒšïŒ
ïŒ1-eã§æ§æãããå Žåã«ã¯ã第äºã®å±€ïŒïŒïŒ
ïŒïŒäžã«å«æãããçªçŽ ååã®å«æéãšããŠã¯ã
奜ãŸããã¯ãïŒÃ10-3ã60ååïŒ ããã奜é©ã«ã¯
ïŒã60ååïŒ ãæé©ã«ã¯10ã55ååïŒ ãšãããã®
ãæãŸãããã®ã§ãããããã«ãããã²ã³ååã®
å«æéãšããŠã¯ã奜ãŸããã¯ïŒã20ååïŒ ããã
奜é©ã«ã¯ïŒã18ååïŒ ãæé©ã«ã¯ïŒã15ååïŒ ãš
ãããã®ãæãŸãããããçã®ç¯å²ã«ããã²ã³å
åå«æéãããå Žåã«äœæãããå å°é»éšæã¯ã
å®éé¢ã«ãããŠå åé©çšããåŸããã®ã§ãããã
ãã«ãŸããå¿ èŠã«å¿ããŠå«æãããæ°ŽçŽ ååã®å«
æéãšããŠã¯ã奜ãŸããã¯19ååïŒ ä»¥äžããã奜
é©ã«ã¯13ååïŒ ä»¥äžãšãããã®ãæãŸãããã®ã§
ããã ããªãã¡ãå ã®ïœâïŒSidN1-dïŒeïŒïŒšïŒïŒžïŒ1-eã®
ïœããã³ïœ ã®è¡šç€ºã§è¡ãã°ïœã奜ãŸããã¯0.4ã
0.99999ããã奜é©ã«ã¯0.4ã0.99ãæé©ã«ã¯0.45
ã0.9ã§ãããïœ ã奜ãŸããã¯0.8ã0.99ããã奜
é©ã«ã¯0.82ã0.99ãæé©ã«ã¯0.85ã0.98ã§ããã
ãšãæãŸããã æ¬çºæã«ããã第äºã®å±€ïŒïŒïŒïŒïŒã®å±€åã®
ç¯å²ã¯ãæ¬çºæã®ç®çãå¹æçã«éæããããã®
éèŠãªå åã®äžã€ã§ããããã®å±€åã¯ãæ¬çºæã®
ç®çãå¹æçã«éæããããã«ææã®ç®çã«å¿ã
ãŠé©å®ææã«åŸã€ãŠæ±ºãããããããã«ããã®å±€
åã¯ã該局ïŒïŒïŒïŒïŒã«å«æãããçªçŽ ååã®
éã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®å±€åãšã®é¢ä¿ã«ãã
ãŠããåã ã®å±€é åã«èŠæ±ãããç¹æ§ã«å¿ããæ
æ©çãªé¢é£æ§ã®äžã«ææã«åŸã€ãŠé©å®æ±ºå®ããã
å¿ èŠããããæŽã«å ãåŸãã«ããã®å±€åã¯çç£æ§
ãéç£æ§ãå å³ããçµæžæ§ã®ç¹ã«ãããŠãèæ ®ã
ããã®ãæãŸããã æ¬çºæã«ããã第äºã®å±€ïŒïŒïŒïŒïŒã®å±€åãš
ããŠã¯ã奜ãŸããã¯0.003ã30ÎŒããã奜é©ã«ã¯
0.004ã20ÎŒãæé©ã«ã¯0.005ã10ÎŒãšãããã®ãæ
ãŸããã æ¬çºæã«ãããŠäœ¿çšãããæ¯æäœïŒïŒïŒãšããŠ
ã¯ãå°é»æ§ã§ãé»æ°çµ¶çžæ§ã§ãã€ãŠãè¯ããå°é»
æ§æ¯æäœãšããŠã¯ãäŸãã°ãNiCrãã¹ãã³ã¬ã¹ã
AlãCrãMoãAuãNbãTaããTiãPtãPd
çã®éå±åã¯ããçã®åéãæããããã é»æ°çµ¶çžæ§æ¯æäœãšããŠã¯ãããªãšã¹ãã«ãã
ãªãšãã¬ã³ãããªã«ãŒãããŒããã»ã«ããŒã¹ãã¢
ã»ããŒããããªãããã¬ã³ãããªå¡©åããã«ãã
ãªå¡©åãããªãã³ãããªã¹ãã¬ã³ãããªã¢ããç
ã®åææš¹èã®ãã€ã«ã åã¯ã·ãŒããã¬ã©ã¹ãã»ã©
ããã¯ã¹ãçŽçãé垞䜿çšããããããçã®é»æ°
絶çžæ§æ¯æäœã¯ã奜é©ã«ã¯å°ãªããšããã®äžæ¹ã®
è¡šé¢ãå°é»åŠçããã該å°é»åŠçãããè¡šé¢åŽã«
ä»ã®å±€ãèšããããã®ãæãŸããã äŸãã°ãã¬ã©ã¹ã§ããã°ããã®è¡šé¢ã«ã
NiCrããAlãCrãMoãAuãIrãNbãTaãã
TiãPtãPdãIn2O2ãSnO2ãITOïŒIn2O3ïŒSnO2ïŒ
çããæãèèãèšããããšã«ãã€ãŠå°é»æ§ãä»
äžãããæãã¯ããªãšã¹ãã«ãã€ã«ã çã®åææš¹
èãã€ã«ã ã§ããã°ãNiCrãAlãAgãPbãZnã
NiãAuãCrãMoãIrãNbãTaããTiãPt
çã®éå±ã®èèãç空èžçãé»åããŒã èžçãã¹
ããã¿ãªã³ã°çã§ãã®è¡šé¢ã«èšããåã¯åèšéå±
ã§ãã®è¡šé¢ãã©ãããŒãåŠçããŠããã®è¡šé¢ã«å°
é»æ§ãä»äžãããã ççŽ ååïŒïŒïŒã®åœ¢ç¶ãšããŠã¯ãåçç¶ããã«
ãç¶ãæ¿ç¶çä»»æã®åœ¢ç¶ãšããŠåŸãææã«ãã€
ãŠããã®åœ¢ç¶ã¯æ±ºå®ãããããäŸãã°ã第ïŒå³ã®
å å°é»éšæïŒïŒïŒãé»ååççšå圢æéšæãšããŠ
䜿çšããã®ã§ããã°é£ç¶é«éè€åã®å Žåã«ã¯ãç¡
端ãã«ãç¶åã¯åçç¶ãšããã®ãæãŸãããæ¯æ
äœïŒïŒïŒã®åãã¯ãææéãã®å å°é»éšæã圢æ
ãããæ§ã«é©å®æ±ºå®ãããããå å°é»éšæãšããŠ
å¯ææ§ãèŠæ±ãããå Žåã«ã¯ãæ¯æäœãšããŠã®æ©
èœãå åçºæ®ãããç¯å²å ã§ããã°å¯èœãªéãè
ãããããèä¹ãããã®æ§ãªå Žåæ¯æäœã®è£œé äž
åã³åæ±ãäžãæ©æ¢°ç匷床çã®ç¹ãããæ¯æäœïŒ
ïŒïŒã®åãã¯ã奜ãŸããã¯ã10Ό以äžãšãããã 次ã«æ¬çºæã®å å°é»éšæã®è£œé æ¹æ³ã®äžäŸã®æŠ
ç¥ã«ã€ããŠèª¬æããã 第ïŒïŒå³ã«å å°é»éšæã®è£œé è£ çœ®ã®äžäŸã瀺
ãã å³äžãïŒïŒïŒïŒãïŒïŒïŒïŒã§ç€ºãã¬ã¹ãã³ãã«
ã¯ãæ¬çºæã®å å°é»éšæã圢æããããã®åæã¬
ã¹ãå¯å°ãããŠããããã®ïŒäŸãšããŠããšãã°ïŒ
ïŒïŒïŒã¯ãHeã§çšéãããSiH4ã¬ã¹ïŒçŽåºŠ
99.999ïŒ ã以äžSiH4ïŒHeãšç¥ããïŒãã³ããïŒïŒ
ïŒïŒã¯Heã§çšéãããGeH4ã¬ã¹ïŒçŽåºŠ99.999
ïŒ ã以äžGeH4ïŒHeãšç¥ããïŒãã³ããïŒïŒïŒïŒ
ã¯C2H4ã¬ã¹ïŒçŽåºŠ99.99ïŒ ïŒãã³ããïŒïŒïŒïŒã¯
Heã¬ã¹ïŒçŽåºŠ99.999ïŒ ïŒãã³ããïŒïŒïŒïŒã¯H2
ã¬ã¹ïŒçŽåºŠ99.999ïŒ ïŒãã³ãã§ããã ãããã®ã¬ã¹ãåå¿å®€ïŒïŒïŒïŒã«æµå ¥ãããã«
ã¯ã¬ã¹ãã³ãïŒïŒïŒïŒãïŒïŒïŒïŒã®ãã«ãïŒïŒïŒ
ïŒãïŒïŒïŒïŒããªãŒã¯ãã«ãïŒïŒïŒïŒãéããã
ãŠããããšã確èªããåãæµå ¥ãã«ãïŒïŒïŒïŒã
ïŒïŒïŒïŒãæµåºãã«ãïŒïŒïŒïŒãïŒïŒïŒïŒãè£å©
ãã«ãïŒïŒïŒïŒïŒïŒïŒïŒïŒãéãããŠããããšã
確èªããŠãå ãã¡ã€ã³ãã«ãïŒïŒïŒïŒãéããŠå
å¿å®€ïŒïŒïŒïŒãåã³åã¬ã¹é 管å ãææ°ããã次
ã«ç空èšïŒïŒïŒïŒã®èªã¿ãçŽïŒÃ10-6Torrã«ãª
ã€ãæç¹ã§è£å©ãã«ãïŒïŒïŒïŒïŒïŒïŒïŒïŒãæµåº
ãã«ãïŒïŒïŒïŒãïŒïŒïŒïŒãéããã 次ã«æ¯æäœãšããŠã®ã·ãªã³ããŒç¶åºäœïŒïŒïŒïŒ
äžã«å å容局ã圢æããå Žåã®ïŒäŸãããããšã
ã¬ã¹ãã³ãïŒïŒïŒïŒããã®SiH4ïŒHeã¬ã¹ãã¬ã¹
ãã³ãïŒïŒïŒïŒããã®GeH4ïŒHeã¬ã¹ãã¬ã¹ãã³
ãïŒïŒïŒïŒããã®C2H4ã¬ã¹ãããã«ãïŒïŒïŒïŒïŒ
ïŒïŒïŒïŒïŒïŒïŒïŒïŒãéããŠåºå£å§ã²ãŒãžïŒïŒïŒ
ïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒã®å§åãïŒKgïŒcm2ã«èª¿æŽ
ããæµå ¥ãã«ãïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒã
åŸã ã«éããããšã«ãã€ãŠããã¹ããã³ã³ãããŒ
ã©ïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒå ã«å€«ã æµå ¥ã
ãããåŒãç¶ããŠæµåºãã«ãïŒïŒïŒïŒïŒïŒïŒïŒ
ïŒïŒïŒïŒïŒïŒãè£å©ãã«ãïŒïŒïŒïŒãåŸã ã«éã
ãŠå€«ã ã®ã¬ã¹ãåå¿å®€ïŒïŒïŒïŒå ã«æµå ¥ãããã
ãã®ãšãã®SiH4ïŒHeã¬ã¹æµéãšGeH4ïŒHeã¬ã¹
æµéãšC2H4ã¬ã¹æµéãšã®æ¯ãææã®å€ã«ãªãã
ãã«æµåºãã«ãïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒïŒã
調æŽããåãåå¿å®€ïŒïŒïŒïŒå ã®å§åãææã®å€
ã«ãªãããã«ç空èšïŒïŒïŒïŒã®èªã¿ãèŠãªããã¡
ã€ã³ãã«ãïŒïŒïŒïŒã®éå£ã調æŽããããããŠåº
äœïŒïŒïŒïŒã®æž©åºŠãå ç±ããŒã¿ãŒïŒïŒïŒïŒã«ãã
50ã400âã®ç¯å²ã®æž©åºŠã«èšå®ãããŠããããšã
確èªããåŸãé»æºïŒïŒïŒïŒãææã®é»åã«èšå®ã
ãŠåå¿å®€ïŒïŒïŒïŒå ã«ã°ããŒæŸé»ãçèµ·ãããå
æã«ãããããèšèšãããå€åçæ²ç·ã«åŸã€ãŠ
GeH4ïŒHeã¬ã¹ããã³æåãããã¯å€éšé§åã¢ãŒ
ã¿çã®æ¹æ³ãé©çšããŠãã«ãïŒïŒïŒïŒãïŒïŒïŒïŒ
ã®éå£ãé©å®å€åãããæäœãè¡ã€ãŠC2H4ã¬ã¹
ã®æµéã調æŽãããã€ãŠåœ¢æãããå±€äžã«å«æã
ããã²ã«ãããŠã ååããã³ççŽ ååã®ååžæ¿åºŠ
ïŒïŒ£ïŒãå¶åŸ¡ããã äžèšã®æ§ã«ããŠãæææéã°ããŒæŸé»ãç¶æã
ãŠãææå±€åã«ãåºäœïŒïŒïŒïŒäžã«ç¬¬äžã®å±€é å
ïŒïŒ§ïŒïŒïŒïŒã圢æãããææå±€åã«ç¬¬äžã®å±€é
åïŒïŒ§ïŒïŒïŒïŒã圢æããã段éã«æŒããŠãæµåº
ãã«ãïŒïŒïŒïŒãå®å šã«éãããšãåã³å¿ èŠã«å¿
ããŠæŸé»æ¡ä»¶ãå€ãã以å€ã¯ãåæ§ãªæ¡ä»¶ãšæé
ã«åŸã€ãŠæææéã°ããŒæŸé»ãç¶æããããšã§ç¬¬
äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒäžã«ã²ã«ãããŠã ååã®
å®è³ªçã«å«æãããªã第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒ
ã圢æããããšãåºæ¥ãã 第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒããã³ç¬¬äºã®å±€é å
ïŒïŒ³ïŒïŒïŒïŒäžã«ãäŒå°æ§ãæ¯é ããç©è³ªïŒ€ãå«
æãããã«ã¯ã第äžã®å±€é åïŒïŒ§ïŒïŒïŒïŒããã³
第äºã®å±€é åïŒïŒ³ïŒïŒïŒïŒã®åœ¢æã®éã«äŸãã°
B2H6ãPH3çã®ã¬ã¹ãå ç©å®€ïŒïŒïŒïŒäžã«å°å ¥
ããã¬ã¹ã«å ããŠããã°è¯ãã ããããŠãåºäœïŒïŒïŒïŒäžã«ç¬¬äžã®å±€ïŒïŒ©ïŒïŒ
ïŒïŒã圢æãããã äžèšã®æ§ã«ããŠææå±€åã«åœ¢æããã第äžã®å±€
ïŒïŒ©ïŒïŒïŒïŒäžã«ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã圢æã
ãã«ã¯ã第äžã®å±€ïŒïŒ©ïŒïŒïŒïŒã®åœ¢æã®éãšåæ§
ãªãã«ãæäœã«ãã€ãŠãäŸãã°SiH4ã¬ã¹ãNH3
ã¬ã¹ã®å€«ã ãå¿ èŠã«å¿ããŠHeçã®çšéã¬ã¹ã§çš
éããŠåå¿å®€ïŒïŒïŒïŒå ã«äŸçµŠããææã®æ¡ä»¶ã«
åŸã€ãŠãã°ããŒæŸé»ãçèµ·ãããã°ããã 第äºã®å±€ïŒïŒïŒïŒïŒäžã«ããã²ã³ååãå«æ
ãããã«ã¯ãäŸãã°SiF4ã¬ã¹ãšNH3ã¬ã¹ãæã
ã¯ããã«SiH4ã¬ã¹ãå ããŠäžèšãšåæ§ã«ããŠç¬¬
äºã®å±€ïŒïŒïŒïŒïŒã圢æããã°ããã 倫ã ã®å±€ã圢æããéã«å¿ èŠãªã¬ã¹ã®æµåºãã«
ã以å€ã®æµåºãã«ãã¯å šãŠéããããšã¯èšããŸã§
ããªããå倫ã ã®å±€ã圢æããéãåå±€ã®åœ¢æã«
䜿çšããã¬ã¹ãåå¿å®€ïŒïŒïŒïŒå ãæµåºãã«ãïŒ
ïŒïŒïŒãïŒïŒïŒïŒããåå¿å®€ïŒïŒïŒïŒå ã«è³ãã¬
ã¹é 管å ã«æ®çããããšãé¿ããããã«ãæµåºã
ã«ãïŒïŒïŒïŒãïŒïŒïŒïŒãéããè£å©ãã«ãïŒïŒ
ïŒïŒïŒïŒïŒïŒïŒãéããŠã¡ã€ã³ãã«ãïŒïŒïŒïŒã
å šéããŠç³»å ãäžæŠé«ç空ã«ææ°ããæäœãå¿ èŠ
ã«å¿ããŠè¡ãã 第äºã®å±€ïŒïŒïŒïŒïŒäžã«å«æãããçªçŽ åå
ã®éã¯äŸãã°ãã°ããŒæŸé»ã«ããå Žåã¯SiH4ã¬
ã¹ããã³NH3ã¬ã¹ã®åå¿å®€ïŒïŒïŒïŒå ã«å°å ¥ã
ããæµéæ¯ãææã«åŸã€ãŠå€ããããæãã¯ãã¹
ããã¿ãªã³ã°ã§å±€åœ¢æããå Žåã«ã¯ãã¿ãŒã²ãã
ã圢æããéã·ãªã³ã³ãŠãšããšçªåã·ãªã³ã³ãŠãš
ãã®ã¹ããã¿é¢ç©æ¯çãå€ããããåã¯ã·ãªã³ã³
ç²æ«ãšçªåã·ãªã³ã³ç²æ«ã®æ··åæ¯çãå€ããŠã¿ãŒ
ã²ãããæåããããšã«ãã€ãŠææã«å¿ããŠå¶åŸ¡
ããããšãåºæ¥ãã第äºã®å±€ïŒïŒïŒïŒïŒäžã«å«
æãããã·ãªã³ã³ååã®éã¯ãããã²ã³ååå°å ¥
çšã®åæã¬ã¹ãäŸãã°SiF4ã¬ã¹ãåå¿å®€ïŒïŒïŒïŒ
å ã«å°å ¥ãããéã®æµéã調æŽããããšã«ãã€ãŠ
æãããã åã局圢æãè¡ã€ãŠããéã¯å±€åœ¢æã®åäžåã
èšãããåºäœïŒïŒïŒïŒã¯ã¢ãŒã¿ïŒïŒïŒïŒã«ããäž
å®é床ã§å転ãããŠããã®ãæãŸããã 以äžå®æœäŸã«ã€ããŠèª¬æããã å®æœäŸ ïŒ ç¬¬ïŒïŒå³ã«ç€ºãã補é è£ çœ®ã«ãããæ¯æäœãšã
ãŠã®ã·ãªã³ããŒç¶ã®Alåºäœäžã«ç¬¬ïŒè¡šã«ç€ºãæ¡
件ã§é»ååççšå圢æéšæãšããŠã®è©ŠæïŒè©ŠæNo.
11âïŒã17âïŒïŒã倫ã äœæããïŒç¬¬ïŒè¡šïŒã åè©Šæã«æŒããã²ã«ãããŠã ååã®å«æååžæ¿
床ã¯ç¬¬ïŒïŒå³ã«ãåãççŽ ååã®å«æååžæ¿åºŠã¯
第ïŒïŒå³ã«ç€ºãããã ããããŠåŸãããåè©Šæãã垯é»é²å å®éšè£ 眮
ã«èšçœ®ã5.0KVã§0.3ç§ïŒsecïŒéã³ãã垯é»ã
è¡ããçŽã¡ã«å åãç §å°ãããå åã¯ã¿ã³ã°ã¹ã
ã³ã©ã³ãå æºãçšãã2luxã»secã®å éãééå
ã®ãã¹ããã€ãŒããéããŠç §å°ãããã ãã®åŸçŽã¡ã«ãè·é»æ§ã®çŸåå€ïŒãããŒãšã
ã€ãªã¢ãŒãå«ãïŒã«ãã€ãŠè©ŠæïŒå圢æéšæïŒè¡š
é¢ãã«ã¹ã±ãŒãããããšã«ãã€ãŠãåœè©²è©ŠæïŒå
圢æéšæïŒè¡šé¢äžã«è¯å¥œãªãããŒç»åãåŸããè©Š
æäžã®ãããŒç»åãã5.0KVã®ã³ãã垯é»ã§è»¢
åçŽäžã«è»¢åããæããããã®è©Šæã«æŒããŠã解
ååã«åªããé調åçŸæ§ã®ããé®®æãªé«æ¿åºŠã®ç»
åãåŸãããã äžèšã«æŒããŠãå æºãšããŠã¿ã³ã°ã¹ãã³ã©ã³ã
ã®ä»£ãã«810nmã®GaAsç³»åå°äœã¬ãŒã¶ïŒ10mWïŒ
ãçšããŠãéé»åã®åœ¢æãè¡ã€ã以å€ã¯ãåæ§ã®
ãããŒç»å圢ææ¡ä»¶ã«ããŠãåè©Šæã«å°±ããŠãã
ãŒè»¢åç»åã®ç»è³ªè©äŸ¡ãè¡ã€ããšããããããã®
è©Šæã®å Žåãã解ååã«åªããé調åçŸæ§ã®è¯ã
é®®æãªé«åäœã®ç»åãåŸãããã å®æœäŸ ïŒ ç¬¬ïŒïŒå³ã«ç€ºãã補é è£ çœ®ã«ããã·ãªã³ããŒç¶
ã®Alåºäœäžã«ç¬¬ïŒè¡šã«ç€ºãæ¡ä»¶ã§é»ååççšå
圢æéšæãšããŠã®è©ŠæïŒè©ŠæNo.21âïŒã27âïŒïŒ
ãããããäœæããïŒç¬¬ïŒè¡šïŒã åè©Šæã«ãããã²ã«ãããŠã ååã®å«æååžæ¿
床ã¯ç¬¬ïŒïŒå³ã«ããŸããççŽ ååã®å«æååžæ¿åºŠ
ã¯ç¬¬ïŒïŒå³ã«ç€ºãããã ããçã®è©Šæã®ããããã«å°±ãŠãå®æœäŸïŒãšå
æ§ã®ç»åè©äŸ¡ãã¹ããè¡ã€ããšããããããã®è©Š
æãé«å質ã®ãããŒè»¢åç»åãäžããããŸããå
è©Šæã«å°±ãŠ38âã80ïŒ RHã®ç°å¢ã«ãããŠ20äžå
ã®ç¹°ãè¿ã䜿çšãã¹ããè¡ã€ããšããããããã®
è©Šæãç»åå質ã®äœäžã¯èŠãããªãã€ãã å®æœäŸ ïŒ ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®äœææ¡ä»¶ã第ïŒè¡šã«ç€º
ãåæ¡ä»¶ã«ãã以å€ã¯ãå®æœäŸïŒã®è©ŠæNo.11â
ïŒã12âïŒã13âïŒãšåæ§ã®æ¡ä»¶ã®æé ã«åŸã€ãŠ
é»ååççšå圢æéšæã®ããããïŒNo.11âïŒâïŒ
ã11âïŒâïŒã12âïŒâïŒã12âïŒâïŒã13âïŒ
âïŒã13âïŒâïŒã®24åã®è©ŠæïŒãäœæãããã
ãããŠåŸãããåé»ååççšå圢æéšæã®ããã
ããåå¥ã«è€åè£ çœ®ã«èšçœ®ããåå®æœäŸã«èšèŒã
ãã®ãšåæ§ã®æ¡ä»¶ã«ãã€ãŠãåå®æœäŸã«å¯Ÿå¿ãã
é»ååççšå圢æéšæã®ããããã«ã€ããŠã転å
ç»åã®ç·åç»è³ªè©äŸ¡ãšç¹°ãè¿ãé£ç¶äœ¿çšã«ããè
ä¹ æ§ã®è©äŸ¡ãè¡ã€ãã åè©Šæã®è»¢åç»åã®ç·åç»è³ªè©äŸ¡ãšãç¹°ãè¿ã
é£ç¶äœ¿çšã«ããèä¹ æ§ã®è©äŸ¡ã®çµæã第ïŒè¡šã«ç€º
ãã å®æœäŸ ïŒ ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®åœ¢æåŸãã·ãªã³ã³ãŠãš
ããšçªåã·ãªã³ã³ã®ã¿ãŒã²ããé¢ç©æ¯ãå€ããŠã
å±€ïŒïŒã«ãããã·ãªã³ã³ååãšçªçŽ ååã®å«æ
éæ¯ãå€åããã以å€ã¯ãå®æœäŸïŒã®è©ŠæNo.11â
ïŒãšå šãåæ§ãªæ¹æ³ã«ãã€ãŠå圢æéšæã®ããã
ããäœæãããããããŠåŸãããå圢æéšæã®ã
ãããã«ã€ããå®æœäŸïŒã«è¿°ã¹ãåŠããäœåãã¯
ãªãŒãã³ã°ã®å·¥çšãçŽïŒäžåç¹°ãè¿ããåŸãç»å
è©äŸ¡ãè¡ã€ããšãã第ïŒè¡šã®åŠãçµæãåŸãã å®æœäŸ ïŒ ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®å±€ã®åœ¢ææãSiH4ã¬
ã¹ãšNH3ã¬ã¹ã®æµéæ¯ãå€ããŠãå±€ïŒïŒã«ã
ããã·ãªã³ã³ååãšçªçŽ ååã®å«æéæ¯ãå€åã
ãã以å€ã¯å®æœäŸïŒè©ŠæNo.12âïŒãšå šãåæ§ãªæ¹
æ³ã«ãã€ãŠå圢æéšæã®ãããããäœæããã ããããŠåŸãããåå圢æéšæã«ã€ããå®æœäŸ
ïŒã«è¿°ã¹ãåŠãæ¹æ³ã§è»¢åãŸã§ã®å·¥çšãçŽïŒäžå
ç¹°ãè¿ããåŸãç»åè©äŸ¡ãè¡ã€ããšããã第ïŒè¡š
ã®åŠãçµæãåŸãã å®æœäŸ ïŒ ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®å±€ã®åœ¢ææãSiH4ã¬
ã¹ãSiF4ã¬ã¹ãNH3ã¬ã¹ã®æµéæ¯ãå€ããŠãå±€
ïŒïŒã«ãããã·ãªã³ã³ååãšçªçŽ ååã®å«æé
æ¯ãå€åããã以å€ã¯ãå®æœäŸïŒã®è©ŠæNo.13âïŒ
ãšå šãåæ§ãªæ¹æ³ã«ãã€ãŠå圢æéšæã®ãããã
ãäœæãããããããŠåŸãããå圢æéšæã®ãã
ããã«ã€ããå®æœäŸïŒã«è¿°ã¹ãåŠãäœåãçŸåã
ã¯ãªãŒãã³ã°ã®å·¥çšãçŽïŒäžåç¹°ãè¿ããåŸãç»
åè©äŸ¡ãè¡ã€ããšããã第ïŒè¡šã®åŠãçµæãåŸ
ãã å®æœäŸ ïŒ ç¬¬äºã®å±€ïŒïŒïŒïŒïŒã®å±€åãå€ãã以å€ã¯ã
å®æœäŸïŒã®è©ŠæNo.11âïŒãšå šãåæ§ãªæ¹æ³ã«ãã€
ãŠå圢æéšæã®ãããããäœæãããå®æœäŸïŒã«
è¿°ã¹ãåŠãäœåãçŸåãã¯ãªãŒãã³ã°ã®å·¥çšãç¹°
ãè¿ã第10è¡šã®çµæãåŸãã
ãè¡šã
çã«èª¿æŽããŠæµéæ¯ãå€åãããã
ãè¡šã
ãè¡šã
ã«èª¿æŽããŠæµéæ¯ãå€åãããã
ãè¡šã
ãè¡šã
ãè¡šã
ãè¡šã
ãè¡šã
âãéåžžã«è¯å¥œ âãè¯å¥œ â³ãå®çšã«å
åèãã
Ããç»åæ¬ é¥ãçãã
Ããç»åæ¬ é¥ãçãã
ãè¡šã
âãéåžžã«è¯å¥œ âãè¯å¥œ â³ãå®çšã«å
åèãã
Ããç»åæ¬ é¥ãçãã
Ããç»åæ¬ é¥ãçãã
ãè¡šã
âãéåžžã«è¯å¥œ âãè¯å¥œ â³ãå®çšã«å
åèãã
Ããç»åæ¬ é¥ãçãã
Ããç»åæ¬ é¥ãçãã
ãè¡šã
以äžã®æ¬çºæã®å®æœäŸã«æŒããå±€äœææ¡ä»¶ã以
äžã«ç€ºãã åºäœæž©åºŠïŒã·ãªã³ã³ååïŒGeïŒå«æå±€ âŠçŽ200â ã²ã«ãããŠã ååïŒGeïŒéå«æå±€ âŠçŽ250â æŸé»åšæ³¢æ°ïŒ13.56MHz åå¿æåå¿å®€å å§ïŒ0.3Torr
äžã«ç€ºãã åºäœæž©åºŠïŒã·ãªã³ã³ååïŒGeïŒå«æå±€ âŠçŽ200â ã²ã«ãããŠã ååïŒGeïŒéå«æå±€ âŠçŽ250â æŸé»åšæ³¢æ°ïŒ13.56MHz åå¿æåå¿å®€å å§ïŒ0.3Torr
第ïŒå³ã¯ãæ¬çºæã®å
å°éšæã®å±€æ§æã説æã
ãçºã®æš¡åŒçå±€æ§æå³ã第ïŒå³ä¹è³ç¬¬ïŒïŒå³ã¯ã
倫ã ã第äžã®å±€ïŒïŒ©ïŒäžã®ã²ã«ãããŠã ååã®å
åžç¶æ ã説æããçºã®èª¬æå³ã第ïŒïŒå³ä¹è³ç¬¬ïŒ
ïŒå³ã¯ã倫ã ã第äžã®å±€ïŒïŒ©ïŒäžã®ççŽ ååã®å
åžç¶æ ã説æããããã®èª¬æå³ã第ïŒïŒå³ã¯ãæ¬
çºæã§äœ¿çšãããè£ çœ®ã®æš¡åŒç説æå³ã第ïŒïŒ
å³ã第ïŒïŒå³ã¯å€«ã æ¬çºæã®å®æœäŸã«çœ®ããåå
åã®å«æååžæ¿åºŠç¶æ ã瀺ãååžç¶æ å³ã§ããã ïŒïŒïŒâŠâŠå å°é»éšæãïŒïŒïŒâŠâŠæ¯æäœãïŒ
ïŒïŒâŠâŠç¬¬äžã®å±€ïŒïŒ©ïŒãïŒïŒïŒâŠâŠç¬¬äºã®å±€
ïŒïŒãïŒïŒïŒâŠâŠå å容局ã
ãçºã®æš¡åŒçå±€æ§æå³ã第ïŒå³ä¹è³ç¬¬ïŒïŒå³ã¯ã
倫ã ã第äžã®å±€ïŒïŒ©ïŒäžã®ã²ã«ãããŠã ååã®å
åžç¶æ ã説æããçºã®èª¬æå³ã第ïŒïŒå³ä¹è³ç¬¬ïŒ
ïŒå³ã¯ã倫ã ã第äžã®å±€ïŒïŒ©ïŒäžã®ççŽ ååã®å
åžç¶æ ã説æããããã®èª¬æå³ã第ïŒïŒå³ã¯ãæ¬
çºæã§äœ¿çšãããè£ çœ®ã®æš¡åŒç説æå³ã第ïŒïŒ
å³ã第ïŒïŒå³ã¯å€«ã æ¬çºæã®å®æœäŸã«çœ®ããåå
åã®å«æååžæ¿åºŠç¶æ ã瀺ãååžç¶æ å³ã§ããã ïŒïŒïŒâŠâŠå å°é»éšæãïŒïŒïŒâŠâŠæ¯æäœãïŒ
ïŒïŒâŠâŠç¬¬äžã®å±€ïŒïŒ©ïŒãïŒïŒïŒâŠâŠç¬¬äºã®å±€
ïŒïŒãïŒïŒïŒâŠâŠå å容局ã
Claims (1)
- ãç¹èš±è«æ±ã®ç¯å²ã ïŒ é»ååççšå å°é»éšæçšã®æ¯æäœãšã 該æ¯æäœäžã«èšããããã·ãªã³ã³ååãšãã·ãª
ã³ã³ååãšã®åã«å¯ŸããŠïŒã10Ã105ååppmã®
ã²ã«ãããŠã ååãšãå«ãéæ¶è³ªææã§æ§æãã
ãå±€å30â«ã50ÎŒã®ç¬¬äžã®å±€é åïŒïŒ§ïŒããã³è©²
第äžã®å±€é åïŒïŒ§ïŒäžã«èšããããã·ãªã³ã³åå
ãå«ãïŒã²ã«ãããŠã ååãå«ãŸãªãïŒéæ¶è³ªæ
æã§æ§æãããå±€å0.5ã90ÎŒã®ç¬¬äºã®å±€é å
ïŒïŒ³ïŒãæããå±€åïŒã100ÎŒã®å å°é»æ§ã瀺ã第
äžã®å±€ããªãã³ã«è©²ç¬¬äžã®å±€äžã«èšããããã·ãª
ã³ã³ååãšïŒÃ10-3ã60ååïŒ ã®çªçŽ ååãšãå«
ãéæ¶è³ªææã§æ§æãããå±€å0.003ã30ÎŒã®ç¬¬äº
ã®å±€ãããªãå å容éãšãã§æ§æãããé»ååç
çšå å°é»éšæã§ãã€ãŠã åèšç¬¬äžã®å±€ã«ã¯ãã·ãªã³ã³ååãšã²ã«ãããŠ
ã ååãšççŽ ååãšã®åã«å¯ŸããŠ0.001ã50åå
ïŒ ã®ççŽ ååãå«æãããåœè©²ççŽ ååã®å±€åæ¹
åã«ãããæ¿åºŠååžã¯æ»ããã§ããã€è©²ç¬¬äžã®å±€
ã®æ¯æäœåŽãŸãã¯åèšç¬¬äºã®å±€ãšã®çé¢åŽããå±€
åã§5Ό以å ã«500ååppm以äžã®æ倧æ¿åºŠååžã
ããããšãç¹åŸŽãšããé»ååççšå å°é»éšæã ïŒ åèšç¬¬äžã®å±€é åïŒïŒ§ïŒããã³åèšç¬¬äºã®å±€
é åïŒïŒ³ïŒã®å°ãªããšãããããäžæ¹ã«æ°ŽçŽ åå
ãå«æãããŠããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ã«èšèŒã®
é»ååççšå å°é»éšæã ïŒ åèšç¬¬äžã®å±€é åïŒïŒ§ïŒããã³åèšç¬¬äºã®å±€
é åïŒïŒ³ïŒã®å°ãªããšãããããäžæ¹ã«ããã²ã³
ååãå«æãããŠããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ãã
ã³ç¬¬ïŒé ã«èšèŒã®é»ååççšå å°é»éšæã ïŒ åèšç¬¬äžã®å±€é åïŒïŒ§ïŒäžã«ãããã²ã«ãã
ãŠã ååã®ååžç¶æ ããå±€åæ¹åã«äžåäžã§ãã
ç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ã«èšèŒã®é»ååççšå å°é»
éšæã ïŒ åèšç¬¬äžã®å±€é åïŒïŒ§ïŒã«ãããã²ã«ãããŠ
ã ååã®ååžç¶æ ãå±€åæ¹åã«åäžã§ããç¹èš±è«
æ±ã®ç¯å²ç¬¬ïŒé ã«èšèŒã®é»ååççšå å°é»éšæã ïŒ åèšç¬¬äžã®å±€äžã«äŒå°æ§ãæ¯é ããç©è³ªãå«
æãããŠããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ã«èšèŒã®é»å
åççšå å°é»éšæã ïŒ åèšäŒå°æ§ãæ¯é ããç©è³ªãåšæåŸè¡šç¬¬æ
ã«å±ããååã§ããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ã«èšèŒ
ã®é»ååççšå å°é»éšæã ïŒ åèšäŒå°æ§ãæ¯é ããç©è³ªãåšæåŸè¡šç¬¬ïŒ¶æ
ã«å±ããååã§ããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ã«èšèŒ
ã®é»ååççšå å°é»éšæã
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58245314A JPS60140257A (ja) | 1983-12-28 | 1983-12-28 | é»ååççšå å°é»éšæ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58245314A JPS60140257A (ja) | 1983-12-28 | 1983-12-28 | é»ååççšå å°é»éšæ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60140257A JPS60140257A (ja) | 1985-07-25 |
JPH0217108B2 true JPH0217108B2 (ja) | 1990-04-19 |
Family
ID=17131824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58245314A Granted JPS60140257A (ja) | 1983-12-28 | 1983-12-28 | é»ååççšå å°é»éšæ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60140257A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103575695A (zh) * | 2012-07-20 | 2014-02-12 | æ é¡å¯ç¿äŒ æææ¯æéå ¬åž | äžç§æ°äœæ°®æ°§åç©å«éæ£æµè£ 眮 |
-
1983
- 1983-12-28 JP JP58245314A patent/JPS60140257A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103575695A (zh) * | 2012-07-20 | 2014-02-12 | æ é¡å¯ç¿äŒ æææ¯æéå ¬åž | äžç§æ°äœæ°®æ°§åç©å«éæ£æµè£ 眮 |
Also Published As
Publication number | Publication date |
---|---|
JPS60140257A (ja) | 1985-07-25 |