JP7605565B2 - 半導体装置の製造方法及び基板処理装置 - Google Patents
半導体装置の製造方法及び基板処理装置 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims description 46
- 238000012545 processing Methods 0.000 title claims description 43
- 239000004065 semiconductor Substances 0.000 title claims description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 239000007789 gas Substances 0.000 claims description 153
- 238000005530 etching Methods 0.000 claims description 101
- 238000000034 method Methods 0.000 claims description 91
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 67
- 229910052710 silicon Inorganic materials 0.000 claims description 67
- 239000010703 silicon Substances 0.000 claims description 67
- 230000015572 biosynthetic process Effects 0.000 claims description 50
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 28
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 25
- 238000000151 deposition Methods 0.000 claims description 14
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 description 73
- 238000006243 chemical reaction Methods 0.000 description 41
- 235000012431 wafers Nutrition 0.000 description 37
- 239000000460 chlorine Substances 0.000 description 36
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 30
- 229910052801 chlorine Inorganic materials 0.000 description 30
- 238000010586 diagram Methods 0.000 description 20
- 239000001257 hydrogen Substances 0.000 description 17
- 229910052739 hydrogen Inorganic materials 0.000 description 17
- 238000010926 purge Methods 0.000 description 15
- 230000007246 mechanism Effects 0.000 description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 11
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 10
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 9
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- 230000008021 deposition Effects 0.000 description 8
- 229910052814 silicon oxide Inorganic materials 0.000 description 7
- 229910007264 Si2H6 Inorganic materials 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910003910 SiCl4 Inorganic materials 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- BIVNKSDKIFWKFA-UHFFFAOYSA-N N-propan-2-yl-N-silylpropan-2-amine Chemical compound CC(C)N([SiH3])C(C)C BIVNKSDKIFWKFA-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
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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
- C23C16/04—Coating on selected surface areas, e.g. using masks
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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
- 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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- 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
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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
- 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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- 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
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/32055—Deposition of semiconductive layers, e.g. poly - or amorphous silicon layers
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
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Description
前記所定の成膜温度を維持した状態で前記基板に塩素ガス及び水素ガスを供給し、前記凹部内に堆積した前記シリコン膜をエッチングして前記シリコン膜の開口幅を広げる工程と、
前記所定の基板温度を維持した状態で前記シリコン含有ガスを前記基板に供給し、前記凹部内の前記シリコン膜上に更にシリコン膜を堆積させる工程と、を有し、
前記シリコン膜の開口幅を広げる工程において、前記塩素ガスの流量に対する前記水素ガスの流量の比が1/10以上となるように、前記基板に前記塩素ガス及び前記水素ガスを供給する。
19 ヒーター
21、31 ガス導入管
23A~23E、32 ガス供給源
24A~24E、33 ガス供給機構
27 バルブ
30 制御部
42 凹部
43 シリコン酸化膜
44 シード層
45、45a シリコン膜
W ウエハ
Claims (9)
- 所定の成膜温度下で表面に凹部が設けられた基板にシリコン含有ガスを供給し、前記凹部内にシリコン膜を形成する工程と、
前記所定の成膜温度を維持した状態で前記基板に塩素ガス及び水素ガスを供給し、前記凹部内に堆積した前記シリコン膜をエッチングして前記シリコン膜の開口幅を広げる工程と、
前記所定の基板温度を維持した状態で前記シリコン含有ガスを前記基板に供給し、前記凹部内の前記シリコン膜上に更にシリコン膜を堆積させる工程と、を有し、
前記シリコン膜の開口幅を広げる工程において、前記塩素ガスの流量に対する前記水素ガスの流量の比が1/10以上となるように、前記基板に前記塩素ガス及び前記水素ガスを供給する、
半導体装置の製造方法。 - 前記シリコン膜の開口幅を広げる工程と、前記シリコン膜上に更にシリコン膜を堆積させる工程とを交互に繰り返す請求項1に記載の半導体装置の製造方法。
- 前記シリコン膜の開口幅を広げる工程と、前記シリコン膜上に更にシリコン膜を堆積させる工程を、前記凹部に前記シリコン膜が充填されるまで繰り返す請求項2に記載の半導体装置の製造方法。
- 前記基板の表面には、アスペクト比の異なる前記凹部が複数設けられており、
アスペクト比の高い前記凹部から順に前記凹部内にシリコン膜を充填してゆく請求項3に記載の半導体装置の製造方法。 - 前記所定の成膜温度は、440~530℃の範囲内である請求項1~4のいずれか一項に記載の半導体装置の製造方法。
- 前記シリコン含有ガスは、SiH4である請求項1~5のいずれか一項に記載の半導体装置の製造方法。
- 前記水素ガスは、前記塩素ガスに添加されて供給される請求項1~6のいずれか一項に記載の半導体装置の製造方法。
- 処理室と、
前記処理室内で、表面に凹部が設けられた基板を保持する基板保持具と、
前記処理室内又は前記基板を所定の成膜温度に加熱維持するヒーターと、
前記基板にシリコン含有ガスを供給し、前記凹部内にシリコン膜を堆積させるシリコン含有ガス供給部と、
前記基板に塩素ガス及び水素ガスを供給し、前記凹部内に堆積した前記シリコン膜の開口幅を広げるエッチングガス供給部と、
前記シリコン含有ガスの前記基板への供給及び前記塩素ガス及び前記水素ガスの前記基板への供給が交互に行われるように前記シリコン含有ガス供給部と前記エッチングガス供給部とを制御する制御部と、を有し、
前記制御部は、前記塩素ガス及び前記水素ガスの前記基板への供給が、前記塩素ガスの流量に対する前記水素ガスの流量の比が1/10以上となるように前記エッチングガス供給部を制御する、
基板処理装置。 - 前記制御部は、前記凹部内に前記シリコン膜が充填されるまで前記シリコン含有ガス供給部と前記エッチングガス供給部の交互動作を制御する請求項8に記載の基板処理装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2021010066A JP7605565B2 (ja) | 2021-01-26 | 2021-01-26 | 半導体装置の製造方法及び基板処理装置 |
KR1020220005118A KR20220107944A (ko) | 2021-01-26 | 2022-01-13 | 반도체 장치의 제조 방법 및 기판 처리 장치 |
US17/648,700 US12131947B2 (en) | 2021-01-26 | 2022-01-24 | Method for manufacturing semiconductor device and substrate processing apparatus |
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JP2021010066A JP7605565B2 (ja) | 2021-01-26 | 2021-01-26 | 半導体装置の製造方法及び基板処理装置 |
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JP2017183508A (ja) | 2016-03-30 | 2017-10-05 | 東京エレクトロン株式会社 | シリコン膜の形成方法および形成装置 |
JP2017228580A (ja) | 2016-06-20 | 2017-12-28 | 東京エレクトロン株式会社 | 半導体装置の製造方法及び半導体製造装置 |
JP2018022743A (ja) | 2016-08-02 | 2018-02-08 | 株式会社日立国際電気 | 半導体装置の製造方法、基板処理装置およびプログラム |
US20180068889A1 (en) | 2016-09-05 | 2018-03-08 | Samsung Electronics Co., Ltd. | Semiconductor device and method of manufacturing the same |
JP2019024080A (ja) | 2017-06-06 | 2019-02-14 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | 連続した堆積−エッチング−処理方法を使用した酸化ケイ素及び窒化ケイ素のボトムアップ成長 |
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KR20090033788A (ko) * | 2007-10-01 | 2009-04-06 | 가부시키가이샤 히다치 고쿠사이 덴키 | 반도체 장치의 제조 방법과 기판 처리 장치 |
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JP2017183508A (ja) | 2016-03-30 | 2017-10-05 | 東京エレクトロン株式会社 | シリコン膜の形成方法および形成装置 |
JP2017228580A (ja) | 2016-06-20 | 2017-12-28 | 東京エレクトロン株式会社 | 半導体装置の製造方法及び半導体製造装置 |
JP2018022743A (ja) | 2016-08-02 | 2018-02-08 | 株式会社日立国際電気 | 半導体装置の製造方法、基板処理装置およびプログラム |
US20180068889A1 (en) | 2016-09-05 | 2018-03-08 | Samsung Electronics Co., Ltd. | Semiconductor device and method of manufacturing the same |
JP2019024080A (ja) | 2017-06-06 | 2019-02-14 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | 連続した堆積−エッチング−処理方法を使用した酸化ケイ素及び窒化ケイ素のボトムアップ成長 |
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