JP7374308B2 - 誘電体材料を堆積する方法及び装置 - Google Patents
誘電体材料を堆積する方法及び装置 Download PDFInfo
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- JP7374308B2 JP7374308B2 JP2022517969A JP2022517969A JP7374308B2 JP 7374308 B2 JP7374308 B2 JP 7374308B2 JP 2022517969 A JP2022517969 A JP 2022517969A JP 2022517969 A JP2022517969 A JP 2022517969A JP 7374308 B2 JP7374308 B2 JP 7374308B2
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- dielectric material
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- remote plasma
- gas mixture
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- 239000003989 dielectric material Substances 0.000 title claims description 134
- 238000000034 method Methods 0.000 title claims description 70
- 238000000151 deposition Methods 0.000 title description 22
- 239000007789 gas Substances 0.000 claims description 211
- 238000012545 processing Methods 0.000 claims description 176
- 239000000758 substrate Substances 0.000 claims description 104
- 239000000203 mixture Substances 0.000 claims description 80
- 239000000463 material Substances 0.000 claims description 65
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 52
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 50
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 29
- 229910052786 argon Inorganic materials 0.000 claims description 29
- 229910052710 silicon Inorganic materials 0.000 claims description 29
- 239000010703 silicon Substances 0.000 claims description 29
- 229910052734 helium Inorganic materials 0.000 claims description 26
- 239000001307 helium Substances 0.000 claims description 22
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 22
- 229910021529 ammonia Inorganic materials 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 229910052799 carbon Inorganic materials 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 15
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 15
- 239000011261 inert gas Substances 0.000 claims description 15
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical group N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 15
- VOSJXMPCFODQAR-UHFFFAOYSA-N ac1l3fa4 Chemical compound [SiH3]N([SiH3])[SiH3] VOSJXMPCFODQAR-UHFFFAOYSA-N 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 12
- 239000001257 hydrogen Substances 0.000 claims description 10
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- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 7
- 239000002243 precursor Substances 0.000 claims description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 7
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 6
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- 150000002431 hydrogen Chemical class 0.000 description 6
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- 230000015654 memory Effects 0.000 description 5
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- 239000002184 metal Substances 0.000 description 5
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 239000012159 carrier gas Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 4
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- 239000000395 magnesium oxide Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
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- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
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- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 229910052757 nitrogen Inorganic materials 0.000 description 2
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- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 2
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- 239000012713 reactive precursor Substances 0.000 description 2
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- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- -1 Si<100> or Si<111>) Inorganic materials 0.000 description 1
- 229910004205 SiNX Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
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- 238000005229 chemical vapour deposition Methods 0.000 description 1
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- 239000013078 crystal Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02164—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon oxide, e.g. SiO2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02274—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
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- H—ELECTRICITY
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- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/321—Radio frequency generated discharge the radio frequency energy being inductively coupled to the plasma
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- C—CHEMISTRY; METALLURGY
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/45523—Pulsed gas flow or change of composition over time
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/517—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using a combination of discharges covered by two or more of groups C23C16/503 - C23C16/515
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Description
Claims (19)
- 誘電体材料を形成する方法であって、
第1の遠隔プラズマ、第1のバイアスプラズマ、及び第2の遠隔プラズマと第2のバイアスプラズマとの組合せを、基板が配置される処理チャンバの内部処理領域に順次印加することによって形成された誘電体材料を、前記基板上の5を超えるアスペクト比を有する開口部に充填すること
を含み、
前記第2の遠隔プラズマと前記第2のバイアスプラズマとの前記組合せを印加することにより、前記誘電体材料の流動性又は疎水性が増加させられる、方法。 - 前記開口部に充填することが、
(a)内部に前記基板が配置されている前記処理チャンバに第1のガス混合物を供給すること、
(b)遠隔プラズマ源において第1のラジカルを含む前記第1の遠隔プラズマを形成し、前記処理チャンバの前記内部処理領域に前記第1のラジカルを供給して、前記第1のガス混合物及び前記第1のラジカルの存在下で前記基板上に配置された材料層の開口部に誘電体材料層を形成すること、
(c)前記第1の遠隔プラズマを終了し、第1のRFバイアス電力を前記処理チャンバに印加して、前記第1のバイアスプラズマを形成すること、
(d)前記誘電体材料層を前記第1のバイアスプラズマと接触させて、第1の処理された誘電体材料層を形成すること;及び
(e)その後に、前記遠隔プラズマ源において第2のラジカルを含む前記第2の遠隔プラズマを形成し、かつ前記処理チャンバに第2のRFバイアス電力を印加しつつ第2のガス混合物の存在下で前記処理チャンバの前記内部処理領域に前記第2のラジカルを供給して、前記第2のバイアスプラズマを形成することであって、前記第2のラジカル及び前記第2のバイアスプラズマが前記第1の処理された誘電体材料層と接触して前記第1の処理された誘電体材料層の疎水性又は流動性を増加させる、第2のバイアスプラズマを形成すること
をさらに含む、請求項1に記載の方法。 - 前記第1の処理された誘電体材料層が所定の厚さを有するまで(a)から(e)を繰り返すことをさらに含む、請求項2に記載の方法。
- 前記誘電体材料層を前記第1のバイアスプラズマと接触させて第1の処理された誘電体材料層を形成することにより、前記第1の処理された誘電体材料層の疎水性が低下し、ここで、前記第1の処理された誘電体材料層が、水との接触時に90度未満の接触角を有する、請求項2又は3に記載の方法。
- 前記第2のラジカル及び前記第2のバイアスプラズマを前記第1の処理された誘電体材料層と接触させることにより、前記第1の処理された誘電体材料層の疎水性が増加し、ここで、前記第1の処理された誘電体材料層の第1の表面の疎水性が、水との接触時に、90から110度の量の接触角を有する、請求項2又は3に記載の方法。
- 前記第1のガス混合物及び前記第2のガス混合物が、ケイ素含有ガス、アルゴン、ヘリウム、及びアンモニアを、摂氏-20度から摂氏90度の温度で含む、請求項2又は3に記載の方法。
- (e)が、前記第1の処理された誘電体材料層を、前記第2のラジカル及び第2のRFバイアスプラズマと約5秒間接触させることを含む、請求項2又は3に記載の方法。
- 前記第2のガス混合物が、アルゴン、ヘリウム、アンモニア、及びトリシリルアミン(TSA)を、摂氏-20度から摂氏90度の温度で含む、請求項2又は3に記載の方法。
- 前記第2のRFバイアス電力を前記処理チャンバに印加する前に、前記第2の遠隔プラズマが形成される、請求項2又は3に記載の方法。
- 前記第1の遠隔プラズマを形成することが、前記第1の遠隔プラズマを所定の期間、形成すること;及び、前記第1のRFバイアス電力を印加する前に前記第1の遠隔プラズマを終了することをさらに含む、請求項2又は3に記載の方法。
- 前記第1のガス混合物及び第2のガス混合物が、前記処理チャンバの側面を介して前記内部処理領域に供給される前駆体ガスを含む、請求項2又は3に記載の方法。
- 前記第1のガス混合物及び前記第2のガス混合物が、前記遠隔プラズマ源を通じて前記内部処理領域に供給された第2のガスを含む、請求項2又は3に記載の方法。
- 前記第1のガス混合物及び前記第2のガス混合物が、ケイ素含有ガス、窒素含有ガス、不活性ガス、炭素含有ガス、及び酸素含有ガスからなる群より選択される1つ以上のガスを含む、請求項2又は3に記載の方法。
- 前記第1のガス混合物及び前記第2のガス混合物が、少なくともアルゴン(Ar)、ヘリウム(He)、アンモニア(NH3)、水素(H2)、及び窒素(N2)を含む、請求項2又は3に記載の方法。
- 前記第1の処理された誘電体材料層が、窒化ケイ素層又は炭化ケイ素層である、請求項2又は3に記載の方法。
- 摂氏約-20度から摂氏約90度の基板温度を維持することをさらに含む、請求項2又は3に記載の方法。
- 前記開口部が底部から上部まで充填される、請求項1から3のいずれか一項に記載の方法。
- 前記開口部が、所定の厚さまで複数の誘電体材料層で充填される、請求項1から3のいずれか一項に記載の方法。
- プロセッサによって実行されると、請求項1から3のいずれか一項に記載の方法を実行させる命令を格納した、非一時的コンピュータ可読記憶媒体。
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- 2020-09-21 JP JP2022517969A patent/JP7374308B2/ja active Active
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KR20220059967A (ko) | 2022-05-10 |
WO2021055918A1 (en) | 2021-03-25 |
EP4032117A1 (en) | 2022-07-27 |
TW202120733A (zh) | 2021-06-01 |
US11972943B2 (en) | 2024-04-30 |
JP2022549243A (ja) | 2022-11-24 |
CN114402417A (zh) | 2022-04-26 |
EP4032117A4 (en) | 2023-11-01 |
US20210090883A1 (en) | 2021-03-25 |
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