JP5690498B2 - 基体上に膜を堆積する方法および気化前駆体化合物を送達する装置 - Google Patents
基体上に膜を堆積する方法および気化前駆体化合物を送達する装置 Download PDFInfo
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- JP5690498B2 JP5690498B2 JP2010065810A JP2010065810A JP5690498B2 JP 5690498 B2 JP5690498 B2 JP 5690498B2 JP 2010065810 A JP2010065810 A JP 2010065810A JP 2010065810 A JP2010065810 A JP 2010065810A JP 5690498 B2 JP5690498 B2 JP 5690498B2
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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
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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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- C23C16/455—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
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- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
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- C—CHEMISTRY; METALLURGY
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- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
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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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- 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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- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical Vapour Deposition (AREA)
Description
本発明は、前駆体化合物とキャリアガスとの気体状混合物であって、実質的に一定の濃度の気化前駆体化合物を有する気体状混合物を、1以上の蒸着チャンバー(または反応器)に、好ましくは、複数の反応器に供給する方法を提供する。「実質的に一定の濃度」とは、参照濃度の±1%の気相濃度、好ましくは参照濃度の±0.5%の気相濃度、より好ましくは参照濃度の±0.3%の気相濃度、さらにより好ましくは参照濃度の±0.25%の気相濃度(例えば、10モル%の前駆体濃度設定値については、気相濃度は好ましくは9.975モル%〜10.025モル%の範囲である)を意味する。反応性であってよくまたは非反応性であってよいあらゆる好適なキャリアガスが本発明において使用されうる。キャリアガスの具体的な選択は様々な要因、例えば、使用される前駆体化合物および使用される具体的な化学蒸着システムに依存する。キャリアガスの例としては、限定されないが、水素、ヘリウム、窒素、アルゴンおよびこれらの混合物が挙げられる。水素および窒素が好ましい。
式中、p0は参照圧力であり、c0は参照濃度であり、Bは較正定数である。p0およびc0のそれぞれは制御装置29にプログラムされる。参照濃度c0はガス流れ中の気化前駆体化合物の所望の濃度である。ガス流れ中で実質的に一定の気化前駆体化合物濃度を維持するために、検出された濃度cは、参照濃度c0と実質的に等しいように維持される。
2 流量制御装置
3 前駆体シリンダー
4 温度調節チャンバー
5 ディップチューブ
6 前駆体
7 ガス出口ライン
8 濃度トランスデューサー
9 反応チャンバー
10 電子制御装置
15 気化容器
16 液体前駆体化合物
17 キャリアガス入口
18 ガス出口
19 ディップチューブ
20 ガス出口チューブ
21 温度調節チャンバー
22 供給ライン
23 ガス制御手段(バルブ)
24 ガス出口ライン
25a、25b、25c 反応チャンバー
26 圧力トランスデューサー
28 濃度トランスデューサー
29 制御装置
31 温度センサー
32 圧力開放バルブ
34 気化容器
35 キャリアガス入口
36 ガス出口
37 出口チャンバー
38 入口チャンバー
39 多孔質エレメント
41 固体前駆体化合物
42 温度調節チャンバー
Claims (8)
- (A)気化されるべき前駆体化合物を収容するチャンバーを含みガス入口およびガス出口を有する気化容器、ガス入口と流体連絡しているキャリアガス供給ライン、当該ガス供給ライン中のガス制御バルブ、並びにガス出口と複数の蒸着反応器との間を流体連絡しているガス出口ラインを提供し、ガス出口ラインは圧力トランスデューサーおよび濃度トランスデューサーを有し、ガス制御バルブ、圧力トランスデューサーおよび濃度トランスデューサーのそれぞれは制御装置と電気的に接続している工程;
(B)気化前駆体化合物およびキャリアガスを含む気体状混合物を複数の蒸着反応器に運ぶ工程;
(C)
(1)ガス出口ラインにおける気体状混合物中の気化前駆体化合物の濃度を検出し;
検出された濃度(c)と参照濃度(c0)とを比較して濃度差(c−c0)を提供し;
当該濃度差を利用して制御装置において信号を発生させ;
当該信号をガス制御バルブに伝達して、ガス出口ラインにおける気体状混合物中での気化前駆体化合物の実質的に一定の濃度を維持するために、当該信号がガス制御バルブを調節し、気化容器内の全圧力を調節する工程;
(2)温度検出手段を備えた気化容器を提供し、温度検出手段は前駆体化合物の温度を検出するように配置され;
前駆体化合物の温度を検出し;
検出された温度(T)と参照温度(T0)とを比較して温度差(T−T0)を提供し;
当該温度差を利用して制御装置において信号を発生させ;
当該信号をガス制御バルブに伝達して、ガス出口ラインにおける気体状混合物中での気化前駆体化合物の実質的に一定の濃度を維持するために、当該信号がガス制御バルブを調節し、気化容器内の全圧力を調節する工程;および
(3)工程(1)および(2)の組み合わせ:
からなる群から選択される工程によって、気体状混合物中の前駆体化合物の実質的に一定の濃度を維持する工程;並びに
(D)気体状混合物を、膜堆積に充分な複数の堆積反応器における条件にかける工程:
を含む、基体上に膜を堆積する方法。 - 前駆体化合物が金属有機化合物である、請求項1に記載の方法。
- 金属有機化合物がメタロイドを含む、請求項4に記載の方法。
- 前駆体化合物がトリメチルガリウム、トリエチルガリウム、トリメチルアルミニウム、トリメチルインジウム、ジメチル亜鉛、シラン、ジクロロシラン、三塩化ホウ素、イソブチルゲルマン、四塩化ゲルマニウムから選択される、請求項1に記載の方法。
- 第2ガス制御バルブがガス出口ラインに存在する、請求項1に記載の方法。
- ガス制御バルブがガス出口ラインにある、請求項1に記載の方法。
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KR (1) | KR101636000B1 (ja) |
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JP2011006779A (ja) | 2011-01-13 |
EP2233603B1 (en) | 2021-05-12 |
US20100285206A1 (en) | 2010-11-11 |
US10060030B2 (en) | 2018-08-28 |
CN101962757A (zh) | 2011-02-02 |
JP2015028216A (ja) | 2015-02-12 |
US8501266B2 (en) | 2013-08-06 |
TW201107525A (en) | 2011-03-01 |
CN101962757B (zh) | 2014-05-07 |
EP2233603A1 (en) | 2010-09-29 |
KR20100108304A (ko) | 2010-10-06 |
US20130312665A1 (en) | 2013-11-28 |
KR101636000B1 (ko) | 2016-07-04 |
US20180334744A1 (en) | 2018-11-22 |
JP5816349B2 (ja) | 2015-11-18 |
US20160265113A1 (en) | 2016-09-15 |
TWI404820B (zh) | 2013-08-11 |
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