JP2011503845A - 窒化シリコン−二酸化シリコン高寿命消耗プラズマ処理構成部品 - Google Patents
窒化シリコン−二酸化シリコン高寿命消耗プラズマ処理構成部品 Download PDFInfo
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- 238000012545 processing Methods 0.000 title claims abstract description 75
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 60
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 34
- 239000010703 silicon Substances 0.000 title claims abstract description 34
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 23
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 74
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000000034 method Methods 0.000 claims abstract description 68
- 239000000758 substrate Substances 0.000 claims abstract description 65
- 238000005245 sintering Methods 0.000 claims abstract description 39
- 238000011109 contamination Methods 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 32
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 15
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- 239000000203 mixture Substances 0.000 claims abstract description 12
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- 230000003628 erosive effect Effects 0.000 claims abstract description 8
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- 150000002367 halogens Chemical class 0.000 claims abstract description 4
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- 238000005530 etching Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 239000011777 magnesium Substances 0.000 claims description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 9
- 229910052749 magnesium Inorganic materials 0.000 claims description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052791 calcium Inorganic materials 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 229910052684 Cerium Inorganic materials 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052788 barium Inorganic materials 0.000 claims description 6
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052733 gallium Inorganic materials 0.000 claims description 6
- 229910052738 indium Inorganic materials 0.000 claims description 6
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 6
- 239000011591 potassium Substances 0.000 claims description 6
- 229910052712 strontium Inorganic materials 0.000 claims description 6
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 6
- 229910052718 tin Inorganic materials 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 229910052727 yttrium Inorganic materials 0.000 claims description 6
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 229910052845 zircon Inorganic materials 0.000 claims description 6
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000002775 capsule Substances 0.000 claims description 3
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- 238000005516 engineering process Methods 0.000 claims description 3
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- 238000001704 evaporation Methods 0.000 claims description 2
- 238000011068 loading method Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 229910001882 dioxygen Inorganic materials 0.000 claims 1
- 238000000462 isostatic pressing Methods 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 description 32
- 239000000463 material Substances 0.000 description 19
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 17
- 239000000395 magnesium oxide Substances 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 5
- 238000007731 hot pressing Methods 0.000 description 5
- 238000009832 plasma treatment Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 238000001513 hot isostatic pressing Methods 0.000 description 4
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000000280 densification Methods 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000001272 pressureless sintering Methods 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910019655 synthetic inorganic crystalline material Inorganic materials 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
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- C04B35/593—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride obtained by pressure sintering
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Abstract
【解決手段】プラズマエッチングチャンバの平均洗浄間隔時間及びチャンバパーツの寿命を延ばす方法が提供される。イオン衝撃及び/又はイオン化ハロゲンガスに曝される少なくとも1つの焼結窒化シリコン構成部品を使用しつつ、チャンバ内において一度に1枚ずつ半導体基板がプラズマエッチングされる。焼結窒化シリコン構成部品は、高純度の窒化シリコンと、二酸化シリコンからなる焼結助剤とからなる。焼結窒化シリコン構成部品を含むプラズマ処理チャンバが提供される。プラズマ処理時のシリコン基板の表面上における金属汚染を軽減する方法が、1つ又は2つ以上の焼結窒化シリコン構成部品を含むプラズマ処理装置によって提供される。プラズマエッチングチャンバ内においてイオン衝撃及び/又はプラズマ浸食に曝される構成部品を製造する方法は、高純度の窒化シリコンと二酸化シリコンとからなる粉末組成を成形することと、該成形構成部品を緻密化することとを含む。
【選択図】図1
Description
Claims (25)
- プラズマエッチングチャンバの平均洗浄間隔時間及びチャンバパーツの寿命を延ばす方法であって、
イオン衝撃及び/又はイオン化ハロゲンガスに曝される少なくとも1つの焼結窒化シリコン構成部品を使用しつつ、前記チャンバ内において一度に1枚ずつ半導体基板をプラズマエッチングする工程を含み、前記窒化シリコン構成部品は、約80wt%から約95wt%の間の高純度の窒化シリコンと、約5wt%から約20wt%の間の焼結助剤とからなり、前記焼結助剤は、高純度の二酸化シリコンからなる
方法。 - 請求項1に記載の方法であって、更に、
前記半導体基板をプラズマエッチングする前に、クォーツ構成部品を前記焼結窒化シリコン構成部品に置き換える工程を含む、方法。 - 請求項1に記載の方法であって、更に、
前記半導体基板をプラズマエッチングする前に、窒化シリコン構成部品を前記焼結窒化シリコン構成部品に置き換える工程を含む、方法。 - 請求項1に記載の方法であって、
前記構成部品は、ピンスリーブ、閉じ込めリング、ホットエッジリングカバー、又は接地カバーリングの少なくとも1つである、方法。 - 請求項1に記載の方法であって、
前記プラズマエッチングは、フルオロカーボン及び/又はヒドロフルオロカーバオンエッチングガスを使用して誘電体材料内に開口をエッチングする工程を含む、方法。 - 請求項1に記載の方法であって、
前記高純度の窒化シリコン及び前記高純度の二酸化シリコンは、1000ppmから5000ppmの間の、100ppmから1000ppmの間の、又は100ppm未満の金属不純物を有し、前記金属不純物は、バリウム、カルシウム、セリウム、クロム、銅、ガリウム、インジウム、鉄、リチウム、マグネシウム、ニッケル、カリウム、ナトリウム、ストロンチウム、錫、チタン、バナジウム、イットリウム、亜鉛、及びジルコンを含み、前記窒化シリコン構成部品は、理論密度の約95%若しくはそれを超える密度を有する、且つ/又は空孔フリーである、方法。 - 請求項1に記載の方法であって、
前記平均洗浄間隔時間は、誘電体材料のエッチング時において約800RF時間から約1,000RF時間の間である、方法。 - 請求項1に記載の方法であって、更に、
前記プラズマエッチングチャンバから前記半導体基板を取り出す工程と、
前記プラズマエッチングチャンバの内部をプラズマ洗浄する工程であって、前記プラズマ洗浄は、前記プラズマエッチングチャンバの前記内部からポリマ堆積物を除去するために、酸素ガス及び/又は窒素ガスによってプラズマを生成する工程を含み、前記プラズマ洗浄は、1枚の基板をエッチングした後、別の基板をエッチングする前に実施される、
方法。 - プラズマ処理チャンバであって、
前記処理チャンバの内部において基板を支えるための基板ホルダと、
前記基板に隣接して曝露表面を有する焼結窒化シリコン構成部品であって、前記構成部品は、約80wt%から約95wt%の間の高純度の窒化シリコンと、約5wt%から約20wt%の間の焼結助剤とからなり、前記焼結助剤は、高純度の二酸化シリコンからなる、焼結窒化シリコン構成部品と、
前記処理チャンバの前記内部にプロセスガスを供給するガス供給と、
前記基板を処理するために、前記処理チャンバの前記内部にエネルギを供給して前記プロセスガスをプラズマ状態に励起するエネルギ源であって、前記構成部品は、前記プラズマによる処理時に前記基板の表面上における金属汚染を最小限に抑えて100×1010原子数/cm2未満にするエネルギ源と
を備えるプラズマ処理チャンバ。 - 請求項9に記載のプラズマ処理チャンバであって、
前記構成部品は、前記プラズマによる処理時に前記基板の前記表面上における金属汚染を最小限に抑えて50×1010原子数/cm2未満にし、前記構成部品は、約80wt%から約93wt%の間の高純度の窒化シリコンと、約7wt%から約20wt%の間の焼結助剤とからなる、プラズマ処理チャンバ。 - 請求項9に記載のプラズマ処理チャンバであって、
前記構成部品は、前記プラズマによる処理時に前記基板の前記表面上における金属汚染を最小限に抑えて10×1010原子数/cm2未満にする、プラズマ処理チャンバ。 - 請求項9に記載のプラズマ処理チャンバであって、
前記構成部品は、前記プラズマによる処理時に前記基板の前記表面上における金属汚染を最小限に抑えて5×1010原子数/cm2未満にする、プラズマ処理チャンバ。 - 請求項9に記載の処理チャンバであって、
前記金属汚染は、バリウム、カルシウム、セリウム、クロム、銅、ガリウム、インジウム、鉄、リチウム、マグネシウム、ニッケル、カリウム、ナトリウム、ストロンチウム、錫、チタン、バナジウム、イットリウム、亜鉛、及びジルコンを含む、処理チャンバ。 - 請求項9に記載の処理チャンバであって、
前記プロセスガスは、フルオロカーボン及び/又はヒドロフルオロカーボンを含む、処理チャンバ。 - プラズマ処理時のシリコン基板の表面上における金属汚染を軽減する方法であって、
プラズマ処理装置の反応チャンバ内において基板サポートの上にシリコン基板を配する工程であって、前記プラズマ処理装置は、1つ又は2つ以上の焼結窒化シリコン構成部品を含み、前記窒化シリコン構成部品は、約80wt%から約95wt%の間の高純度の窒化シリコンと、約5wt%から約20wt%の間の焼結助剤とからなり、前記焼結助剤は、高純度の二酸化シリコンからなり、
前記反応チャンバにプロセスガスを導入し、
前記プロセスガスからプラズマを生成し、
前記シリコン基板を前記プラズマによって処理する
方法。 - 請求項15に記載の方法であって、
前記プロセスガスは、フルオロカーボン及び/又はヒドロフルオロカーボンを含む、方法。 - 請求項15に記載の方法であって、
前記1つ又は2つ以上の窒化シリコン構成部品は、ピンスリーブ、閉じ込めリング、ホットエッジリングカバー、又は接地カバーリングである、方法。 - 請求項15に記載の方法であって、
前記シリコン基板は、前記プラズマによる前記シリコン基板の処理後に約5×1010原子数/cm2未満の金属表面濃度を有する、方法。 - 請求項18に記載の方法であって、
前記金属は、バリウム、カルシウム、セリウム、クロム、銅、ガリウム、インジウム、鉄、リチウム、マグネシウム、ニッケル、カリウム、ナトリウム、ストロンチウム、錫、チタン、バナジウム、イットリウム、亜鉛、又はジルコンを含む、方法。 - 請求項15に記載の方法であって、
前記シリコン基板を処理することは、エッチングを含む、方法。 - プラズマエッチングチャンバ内においてイオン衝撃及び/又はプラズマ浸食に曝されるプラズマエッチングチャンバ処理構成部品を製造する方法であって、
約80wt%から約95wt%の間の高純度の窒化シリコンと、約5wt%から約20wt%の間の二酸化シリコンとからなる粉末組成を混合する工程と、
前記粉末組成から成形構成部品を形成する工程と、
熱及び圧力の同時的印加によって前記成形構成部品を緻密化する工程と、
を備える方法。 - 請求項21に記載の方法であって、
前記粉末組成を混合する工程は、更に、
アルコール溶媒の中で、高純度の窒化シリコンと高純度の二酸化シリコンとを混ぜ合わせる工程と、
前記アルコール溶媒を蒸発させて、乾燥粉末混合を形成する工程と、
を含み、前記成形構成部品を形成することは、更に、
前記乾燥粉末混合をダイセットに装填する工程と、
約100MPaから約120MPaの間の圧力で前記粉末混合に一軸プレス又は冷間静水圧プレスを施して、予備成形素地を形成する工程と、
を含み、
熱及び圧力の同時的印加によって前記成形構成部品を緻密化する工程は、
ガラスカプセル技術を使用して、約1750℃から約1900℃の間の温度で約175MPaから約225MPaの間の印加圧力下において約60分から約120分の間の時間にわたって前記予備成形素地を熱間静水圧プレスする処理を含む、方法。 - 請求項22に記載の方法であって、
前記予備成形素地は、理論密度の45%の最小密度を有する、方法。 - プラズマ処理構成部品であって、
焼結窒化シリコン構成部品であって、約80wt%から約95wt%の間の高純度の窒化シリコンと、約5wt%から約20wt%の間の焼結助剤とからなり、前記焼結助剤は、高純度の二酸化シリコンからなる、焼結窒化シリコン構成部品を備えるプラズマ処理構成部品。 - 請求項24に記載のプラズマ処理構成部品であって、
前記構成部品は、ピンスリーブ、閉じ込めリング、ホットエッジリングカバー、又は接地カバーリングである
プラズマ処理構成部品。
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US8622021B2 (en) | 2014-01-07 |
CN101889329B (zh) | 2012-07-04 |
KR20100099137A (ko) | 2010-09-10 |
US20110021031A1 (en) | 2011-01-27 |
WO2009058235A2 (en) | 2009-05-07 |
TWI433199B (zh) | 2014-04-01 |
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