JP2017152426A - 成膜方法 - Google Patents
成膜方法 Download PDFInfo
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- JP2017152426A JP2017152426A JP2016030837A JP2016030837A JP2017152426A JP 2017152426 A JP2017152426 A JP 2017152426A JP 2016030837 A JP2016030837 A JP 2016030837A JP 2016030837 A JP2016030837 A JP 2016030837A JP 2017152426 A JP2017152426 A JP 2017152426A
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- 238000000151 deposition Methods 0.000 title abstract description 14
- 239000000460 chlorine Substances 0.000 claims abstract description 89
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 54
- 150000001875 compounds Chemical class 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 43
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 29
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000010703 silicon Substances 0.000 claims abstract description 27
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 19
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims abstract description 12
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005229 chemical vapour deposition Methods 0.000 claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims description 19
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 9
- 229910000077 silane Inorganic materials 0.000 claims description 8
- 229910000078 germane Inorganic materials 0.000 claims description 7
- 229910003902 SiCl 4 Inorganic materials 0.000 claims description 4
- SLLGVCUQYRMELA-UHFFFAOYSA-N chlorosilicon Chemical compound Cl[Si] SLLGVCUQYRMELA-UHFFFAOYSA-N 0.000 claims description 4
- AWEFOOVAPQKHBW-UHFFFAOYSA-N [Cl].[Ge] Chemical compound [Cl].[Ge] AWEFOOVAPQKHBW-UHFFFAOYSA-N 0.000 claims 1
- 230000008021 deposition Effects 0.000 abstract description 11
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 199
- 229910021417 amorphous silicon Inorganic materials 0.000 description 23
- 235000012431 wafers Nutrition 0.000 description 22
- 230000015572 biosynthetic process Effects 0.000 description 14
- 239000011261 inert gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 230000002401 inhibitory effect Effects 0.000 description 6
- 230000005764 inhibitory process Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910021480 group 4 element Inorganic materials 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- KPZGRMZPZLOPBS-UHFFFAOYSA-N 1,3-dichloro-2,2-bis(chloromethyl)propane Chemical compound ClCC(CCl)(CCl)CCl KPZGRMZPZLOPBS-UHFFFAOYSA-N 0.000 description 1
- 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
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- OWKFZBJFYBIPMX-UHFFFAOYSA-N chlorogermane Chemical compound [GeH3]Cl OWKFZBJFYBIPMX-UHFFFAOYSA-N 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- OXTURSYJKMYFLT-UHFFFAOYSA-N dichlorogermane Chemical compound Cl[GeH2]Cl OXTURSYJKMYFLT-UHFFFAOYSA-N 0.000 description 1
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- VXGHASBVNMHGDI-UHFFFAOYSA-N digermane Chemical compound [Ge][Ge] VXGHASBVNMHGDI-UHFFFAOYSA-N 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- QUZPNFFHZPRKJD-UHFFFAOYSA-N germane Chemical compound [GeH4] QUZPNFFHZPRKJD-UHFFFAOYSA-N 0.000 description 1
- 229910052986 germanium hydride Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000009466 transformation Effects 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
- MUDDKLJPADVVKF-UHFFFAOYSA-N trichlorogermane Chemical compound Cl[GeH](Cl)Cl MUDDKLJPADVVKF-UHFFFAOYSA-N 0.000 description 1
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
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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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/02636—Selective deposition, e.g. simultaneous growth of mono- and non-monocrystalline semiconductor materials
- H01L21/02647—Lateral overgrowth
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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
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
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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
- C23C16/44—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
-
- 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
- C23C16/52—Controlling or regulating the coating process
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- 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
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
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Abstract
Description
本実施形態においては、凹部を有する被処理基板にアモルファスシリコン膜、ゲルマニウム膜、シリコンゲルマニウム膜を成膜する。
図1は本発明の成膜方法を実施するための成膜装置の一例を示す縦断面図である。
成膜装置1は、天井部を備えた筒状の断熱体3と、断熱体3の内周面に設けられたヒータ4とを有する加熱炉2を備えている。加熱炉2は、ベースプレート5上に設置されている。
次に、以上の成膜装置を用いて行われる成膜方法について説明する。ここでは、原料ガスとしてSiH4ガスを用い、塩素含有化合物ガスとしてDCS(SiH2Cl2)ガスを用いてアモルファスシリコンを成膜する場合を例にとって説明する。
図4は、SiH4ガスおよびDCSガスの分圧(流量)の合計に対するDCSガスの分圧比(流量比)と膜の堆積速度との関係を示す図である。なお、このときの成膜温度は510℃、ガスの圧力(SiH4ガスおよびDCSガスの合計圧力)は0.4Torrとした。
ウエハ枚数:150枚
成膜温度:510℃
圧力:0.4Torr(53.2Pa)
SiH4ガス流量:500sccm
DCSガス流量:10sccm
DCSガスの分圧比(流量比):0.02
以上、本発明の実施形態について説明したが、この発明は、上記の実施形態に限定されることはなく、その趣旨を逸脱しない範囲で種々変形可能である。
2;加熱炉
4;ヒータ
10;処理容器
20;ウエハボート
21;成膜ガス供給機構
22;塩素含有化合物ガス供給機構
38;排気管
39;真空ポンプ
50;制御部
200;Si基体
201;絶縁膜
202;凹部(トレンチまたはホール)
203;アモルファスシリコン膜
W;半導体ウエハ(被処理基板)
Claims (8)
- 表面に微細凹部が形成された被処理基板に、CVD法により、シリコン膜、ゲルマニウム膜、またはシリコンゲルマニウム膜を成膜する成膜方法であって、
処理容器内に微細凹部を有する被処理基板を配置する工程と、
前記処理容器内に、成膜しようとする膜を構成する元素を含有する成膜ガス、および塩素含有化合物ガスを供給する工程と
を有し、
前記塩素含有化合物ガスにより、前記微細凹部の上部において前記成膜ガスの吸着を選択的に阻害することを特徴とする成膜方法。 - 前記成膜ガスは、シラン系ガスおよび/またはゲルマン系ガスであることを特徴とする請求項1に記載の成膜方法。
- 前記シラン系ガスは、SiH4ガスまたはSi2H6ガスであり、前記ゲルマン系ガスは、GeH4ガスまたはGe2H6ガスであることを特徴とする請求項2に記載の成膜方法。
- 前記塩素含有化合物ガスは、シリコン系塩素含有化合物ガスまたはゲルマニウム系塩素含有化合物ガスであることを特徴とする請求項1から請求項3のいずれか1項に記載の成膜方法。
- 前記シリコン系塩素含有化合物ガスは、SiH3Clガス、SiH2Cl2ガス、SiHCl3ガス、SiCl4ガス、Si2Cl6ガスのいずれかであり、前記ゲルマニウム系塩素含有化合物ガスは、GeH3Clガス、GeH2Cl2ガス、GeHCl3ガス、GeCl4ガス、Ge2Cl6ガスのいずれかであることを特徴とする請求項4に記載の成膜方法。
- 前記成膜ガスおよび前記塩素含有化合物ガスの合計に対する前記塩素含有化合物ガスの分圧比率は、0.01〜0.2であることを特徴とする請求項1から請求項5のいずれか1項に記載の成膜方法。
- 表面に微細凹部が形成された被処理基板に、CVD法により、シリコン膜を成膜する成膜方法であって、
処理容器内に微細凹部を有する被処理基板を配置する工程と、
前記処理容器内に、成膜ガスであるSiH4ガス、およびSiH4ガスの吸着を阻害するSiH2Cl2ガスを供給する工程と
を有し、
前記SiH2Cl2ガスにより、前記微細凹部の上部において前記SiH4ガスの吸着を選択的に阻害することを特徴とする成膜方法。 - 前記SiH4ガスおよび前記SiH2Cl2ガスの合計に対する前記SiH2Cl2ガスの分圧比率は、0.01〜0.2であることを特徴とする請求項7に記載の成膜方法。
Priority Applications (4)
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JP2016030837A JP6640596B2 (ja) | 2016-02-22 | 2016-02-22 | 成膜方法 |
KR1020170021400A KR102069943B1 (ko) | 2016-02-22 | 2017-02-17 | 성막 방법 |
US15/436,991 US9984875B2 (en) | 2016-02-22 | 2017-02-20 | Film forming method |
TW106105661A TWI689617B (zh) | 2016-02-22 | 2017-02-21 | 成膜方法 |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019121620A (ja) * | 2017-12-28 | 2019-07-22 | 株式会社Kokusai Electric | 半導体装置の製造方法、基板処理装置、およびプログラム |
JP2019197872A (ja) * | 2018-05-11 | 2019-11-14 | 東京エレクトロン株式会社 | 半導体膜の形成方法及び成膜装置 |
JP2020027926A (ja) * | 2018-08-17 | 2020-02-20 | 東京エレクトロン株式会社 | 成膜方法及び成膜装置 |
JP2020027925A (ja) * | 2018-08-17 | 2020-02-20 | 東京エレクトロン株式会社 | 成膜方法及び成膜装置 |
KR20200115171A (ko) | 2019-03-29 | 2020-10-07 | 도쿄엘렉트론가부시키가이샤 | 기판 처리 장치 |
KR20200115247A (ko) | 2019-03-28 | 2020-10-07 | 도쿄엘렉트론가부시키가이샤 | 성막 방법 및 성막 장치 |
KR20200116416A (ko) | 2019-04-01 | 2020-10-12 | 도쿄엘렉트론가부시키가이샤 | 성막 방법 및 성막 장치 |
WO2021187136A1 (ja) * | 2020-03-17 | 2021-09-23 | 東京エレクトロン株式会社 | 成膜装置及び基板処理方法 |
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WO2021187136A1 (ja) * | 2020-03-17 | 2021-09-23 | 東京エレクトロン株式会社 | 成膜装置及び基板処理方法 |
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US20170243742A1 (en) | 2017-08-24 |
TWI689617B (zh) | 2020-04-01 |
JP6640596B2 (ja) | 2020-02-05 |
US9984875B2 (en) | 2018-05-29 |
KR102069943B1 (ko) | 2020-01-23 |
TW201800603A (zh) | 2018-01-01 |
KR20170098706A (ko) | 2017-08-30 |
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