JP6484601B2 - 処理装置及び半導体装置の製造方法 - Google Patents
処理装置及び半導体装置の製造方法 Download PDFInfo
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- JP6484601B2 JP6484601B2 JP2016227995A JP2016227995A JP6484601B2 JP 6484601 B2 JP6484601 B2 JP 6484601B2 JP 2016227995 A JP2016227995 A JP 2016227995A JP 2016227995 A JP2016227995 A JP 2016227995A JP 6484601 B2 JP6484601 B2 JP 6484601B2
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- 238000012545 processing Methods 0.000 title claims description 188
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000004065 semiconductor Substances 0.000 title claims description 14
- 239000007789 gas Substances 0.000 claims description 128
- 238000000034 method Methods 0.000 claims description 49
- 239000012495 reaction gas Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 description 77
- 235000012431 wafers Nutrition 0.000 description 54
- 230000008569 process Effects 0.000 description 41
- 238000012546 transfer Methods 0.000 description 39
- 239000010408 film Substances 0.000 description 27
- 238000006243 chemical reaction Methods 0.000 description 25
- 230000007246 mechanism Effects 0.000 description 24
- 238000010926 purge Methods 0.000 description 19
- 238000012423 maintenance Methods 0.000 description 17
- 238000012986 modification Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 239000010409 thin film Substances 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 7
- 239000011261 inert gas Substances 0.000 description 7
- 238000003860 storage Methods 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 230000007723 transport mechanism Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000013404 process transfer Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- LXEXBJXDGVGRAR-UHFFFAOYSA-N trichloro(trichlorosilyl)silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)Cl LXEXBJXDGVGRAR-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/24—Deposition of silicon only
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
- C23C16/345—Silicon nitride
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- 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
- C23C16/44—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
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
- C23C16/4408—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber by purging residual gases from the reaction chamber or gas lines
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- 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
- C23C16/44—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
- C23C16/4412—Details relating to the exhausts, e.g. pumps, filters, scrubbers, particle traps
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- 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
- C23C16/44—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
- C23C16/455—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 characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
- C23C16/45546—Atomic layer deposition [ALD] characterized by the apparatus specially adapted for a substrate stack in the ALD reactor
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- 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
- C23C16/44—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
- C23C16/455—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 characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- 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
- C23C16/44—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
- C23C16/455—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 characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45565—Shower nozzles
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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
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02046—Dry cleaning only
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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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
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- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/6719—Apparatus for manufacturing or treating in a plurality of work-stations characterized by the construction of the processing chambers, e.g. modular processing chambers
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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
- H01L21/0217—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 nitride not containing oxygen, e.g. SixNy or SixByNz
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- 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
- H01L21/02225—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
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- H—ELECTRICITY
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- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
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- H—ELECTRICITY
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
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- H—ELECTRICITY
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67739—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber
- H01L21/67742—Mechanical parts of transfer devices
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- Inorganic Chemistry (AREA)
- Chemical Vapour Deposition (AREA)
- Formation Of Insulating Films (AREA)
Description
処理炉内に構成される処理室からガスを排気する排気ユニットと、振動を吸収する部材を介して排気ユニットに接続される排気装置と、を少なくとも備えた構成であって、排気装置は、処理炉と排気ユニットとそれぞれ同じフロアに、排気ユニットを介して処理炉近傍に立置きに設置される構成が提供される。
以下に、本発明の一実施形態について説明する。
続いて、本発明の一実施形態に係る基板処理装置100の構成について、図1、図2を参照しながら説明する。
図2に示すように、処理炉202は、反応管としてのプロセスチューブ203を備えている。反応管203は、内部反応管としてのインナーチューブ204と、その外側に設けられた外部反応管としてのアウターチューブ205と、を備えている。内部反応管204は、上端及び下端が開口した円筒形状に形成されている。内部反応管204内の筒中空部には、ウエハ200を処理する処理室201が形成されている。処理室201は、ボート217を収容可能なように構成されている。
続いて、半導体デバイスの製造工程の一工程として、ウエハ200上に薄膜を形成する方法について、図1及び図2を参照しながら説明する。以下、基板処理装置100を構成する各部の動作は基板処理装置用コントローラ240により制御される。
図3を参照して、基板処理装置用コントローラとしての制御装置(以後、制御部ともいう)240について説明する。
図5乃至図9を参照して、本実施形態における基板処理装置100のシステム構成について説明する。
図4を参照して、本実施形態における基板処理装置100の制御システムについて説明する。本実施形態における制御システムは、顧客ホストコンピュータを含む上位コンピュータ290とデータのやり取りが可能な操作部260と、ガス、圧力、温度等のモニタデータやウエハ200等の搬送を制御するコントローラ(制御部)240と、メインポンプ及び補助ポンプの制御を行うポンプ制御部280と、を少なくとも含む構成されている。また、この場合の接続形態は、LANまたはセンサバスなど様々である。
次に、半導体製造装置としての処理装置を使用して、基板を処理する基板処理工程の概略について説明する。この基板処理工程は、例えば、半導体装置を製造するための一工程である。なお、以下の説明において、処理装置を構成する各部の動作や処理は、制御部240により制御される。以下、基板処理工程について図14を用いて説明する。
まず、ウエハ200をボート217に装填し、処理室201内へ搬入し、基板搬入工程S102を行う。
次に、ウエハ200の表面上に薄膜を形成する成膜工程S104を行う。成膜工程は次
の4つのステップを順次実行する。なお、ステップ1〜4の間は、ヒータ206により、ウエハ200を所定の温度に加熱しておく。
[ステップ1]
ステップ1では、HCDSガスを流す。まず、ガス配管232aに設けた図示しないバルブと排気配管231に設けたAPCバルブ242を共に開けて、図示しないガス供給器から流量制御器241により流量調節されたHCDSガスをガス配管232aに通し、ノズル230のガス供給孔から処理室201内に供給しつつ、排気配管241から排気する。この際、処理室201内の圧力を所定の圧力に保つ。
[ステップ2]
ステップ2では、ガス配管232aのバルブを閉めてHCDSガスの供給を止める。排気配管231のAPCバルブ242は開いたままにし、排気装置246、メインポンプ247により処理室201内を排気し、残留ガスを処理室201内から排除する。また、N2等の不活性ガスを処理室201内に供給し処理室201内のパージを行い、処理室201内の残留ガスを処理室201外に排出する。さらに、HCDSガスラインのガス配管232aに設けられたバルブ36を開けて、MFC241aにより流量調節されたN2等の不活性ガスを処理室201内に供給する。
[ステップ3]
ステップ3では、NH3ガスを流す。ガス配管232bに設けられた、図示しないバルブと排気配管231に設けられたAPCバルブ242を共に開け、図示しないガス供給器からMFC241bにより流量調節されたNH3ガスをガス配管232bに通し、ノズル230bのガス供給孔から処理室201内に供給しつつ、排気配管231から排気する。また、処理室201内の圧力を所定の圧力に調整する。NH3ガスの供給により、HCDSガスがウエハ200の表面に形成したシリコン薄膜とNH3ガスが表面反応して、ウエハ200上にSiN膜が形成される。
[ステップ4]
ステップ4では、再び不活性ガスによる処理室201内のパージを行う。ガス配管232bのバルブを閉めて、NH3ガスの供給を止める。排気配管231のAPCバルブ242は開いたままにし、排気装置246、メインポンプ247により処理室201内を排気し、残留ガスを処理室201内から排除する。また、ガス配管232aに設けられたバルブ36を開けて、MFC241aにより流量調節されたN2等の不活性ガスをガス配管232aより処理室201内に供給して処理室201内のパージを行う。さらに、NH3ガスラインのガス配管232bに設けられたバルブを開けて、ガス配管232bからもN2等の不活性ガスを処理室201に供給する。
ハ200上に所定膜厚のSiN膜を形成する。
次に、SiN膜が形成されたウエハ200が載置されたボート217を、処理室201から搬出する。
200…ウエハ(基板)
217…ボート(基板保持具)
246…排気装置(補助ポンプ)
Claims (11)
- 処理炉内に構成される処理室を有する筐体と、該筐体の一端側に接続され、前記処理室からガスを排気する排気ユニットと、前記排気ユニットに接続される排気装置と、前記筐体の他端側に接続され、前記ガスを前記処理室に供給するガス供給ユニットと、を少なくとも備え、
前記排気装置は、
前記筐体に対して前記排気装置の一端側の側面が前記筐体に対する前記排気ユニットの横幅から外れるように設置されつつ、隣に設置される処理装置の筐体に対するガス供給ユニットの横幅内に収まるように設置され、
前記筐体に対して前記排気装置の他端側の側面が前記筐体に対する前記排気ユニットの横幅内に収まるように設置される処理装置。 - 前記排気装置は、前記ガス供給ユニット、前記処理炉と前記排気ユニットとそれぞれ同じフロアに配置されると共に、前記排気ユニットを介して前記処理炉近傍に設置される請求項1記載の処理装置。
- 前記排気装置の吸気口の中心位置と前記筐体に対して前記排気装置の外側の側面との幅よりも、前記吸気口の中心位置と前記筐体に対して前記排気装置の内側の側面との幅のほうが短くなるように構成されている請求項1記載の処理装置。
- 前記排気装置と前記排気ユニットとを接続する排気配管をカバーで覆うよう構成されている請求項1記載の処理装置。
- 前記排気装置と前記排気配管の両方をカバーで覆うよう構成されている請求項4記載の処理装置。
- 前記排気ユニットは、前記ガスの流れる流路を構成する配管と、前記処理室の圧力を検出する部品と、前記流路の開度を調整して前記処理室の圧力を制御する制御部品とを含むよう構成されている請求項1記載の処理装置。
- 前記ガス供給ユニットは、前記ガスの流れる流路を構成する配管と、前記流路を開閉して前記ガスを流通する部品と、前記ガスの流量を制御する制御部品とを含むよう構成されている請求項1記載の処理装置。
- 前記排気装置は、振動を吸収する部材を有する接続部を更に備え、
前記排気装置は、前記排気配管の長さが短くなるように、前記接続部を介して前記排気ユニットに接続される請求項4記載の処理装置。 - 前記接続部は、フレキシブルな配管を含むように構成される請求項8記載の処理装置。
- 前記筐体に対する前記排気装置の横幅が、前記筐体に対する前記排気ユニットの内側の側面と隣に設置される処理装置の筐体に対するガス供給ユニットの内側の側面との幅内に収まるように配置される請求項1記載の処理装置。
- 原料ガスを供給する工程と、反応ガスを供給する工程と、前記原料ガス及び前記反応ガスを排気する工程と、を少なくとも有する半導体装置の製造方法であって、
前記原料ガス及び前記反応ガスを排気する工程では、
処理炉内に構成される処理室からガスを排気する排気ユニットに接続されると共に、筐体に対して一端側の側面が前記筐体に対する前記排気ユニットの横幅から外れるように設置されつつ、隣に設置される処理装置の筐体に対するガス供給ユニットの横幅内に収まるように設置され、前記筐体に対して他端側の側面が前記筐体に対する前記排気ユニットの横幅内に収まるように設置される排気装置により、前記原料ガス及び前記反応ガスを排気する半導体装置の製造方法。
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