JP4523661B1 - 原子層堆積装置及び薄膜形成方法 - Google Patents
原子層堆積装置及び薄膜形成方法 Download PDFInfo
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Abstract
【解決手段】基板上に薄膜を形成する原子層堆積装置10であって、第1の内部空間を形成する容器であって、基板を搬入又は搬出するための基板搬入出口28と、基板上に薄膜を形成するガスを内部に導入するためのガス導入口29とを異なる位置に備える第1の容器20と、第1の容器20の内部に設けられ、第1の内部空間と隔てられる第2の内部空間を形成し、第1の開口を備える第2の容器60と、第2の容器60を所定の方向に移動する第1の移動機構36と、基板を搬入又は搬出する場合、基板搬入出口と第1の開口とが対向する第1の位置に第2の容器60を移動し、基板上に薄膜を形成する場合、ガス導入口と第1の開口とが対向する第2の位置に第2の容器60を移動するように第1の移動機構を制御する制御部100と、を有する。
【選択図】図1
Description
原子層堆積装置10は、TMA(Tri-Methyl-Aluminium)等の原料ガスと、オゾンO3等の酸化ガスを交互に供給して、原子単位で堆積して薄膜を形成する装置である。
図1は、基板12上に薄膜を形成する薄膜形成工程時における原子層堆積装置(以降、ALD装置という)10の概略の装置構成を示す断面図である。
以下、これらの構成について、より詳細に説明する。
第1の容器20は、SUS等の金属材料で構成されている。第1の容器20の上壁には、N2ガス(あるいは不活性ガス)を第1の内部空間22に導入するガス導入口が設けられている。また、第1の容器20の上壁には、排気管42が接続される排気口が設けられており、ターボ分子ポンプなどの排気部44により、第1の内部空間22内のガスは、第1の容器20の外部に排気される。これにより、第1の内部空間22内は、導入されたN2ガスの雰囲気で、所定の圧力に維持される。第1の内部空間22を所定の圧力に減圧することにより、後述するヒータ24、25が酸化するのを抑制することができる。
なお、基板12の搬入、搬出時の状態は、図3に示されている。図3についての説明は後述する。
また、第1の移動機構36はキャスタ37を備えており、第1の容器20の底面32の面内方向に移動することができる。
図2(a)は、第2の容器60の概略構成図である。
第2の容器60は、第1の容器20の内部に設けられ、第1の内部空間22と隔てられる第2の内部空間62を形成する筒形状の容器である。第2の容器60は、安定した材質の点から石英が好適に用いられる。基板12をガラス基板とした場合、材料自体が略同じであるため、基板12に異なる成分が付着する心配がないという利点がある。
押え部材80は、第2の容器60を筒形状の長手方向(水平方向)に押える。押え部材80と第2の容器60との間には、Oリング86a、スペーサ84、Oリング86bが順に設けられている。また、第1の容器20の図1中左側の壁面と押え部材80との間には角型ベローズ82が設けられており、押え部材80を水平方向に移動することができる。また、第2の容器60と第1の容器20の壁面26(図1中右側の面)との間には、Oリング90a、スペーサ88、Oリング90bが順に設けられている。また、ガス導入口29近傍の壁面26の内壁や、排気管68の内壁には、薄膜を形成すべき基板以外に薄膜が付着するのを防ぐための防着板31,83が設けられている。
(基板搬入工程)
図3は、原子層堆積装置10の基板搬入工程時の状態を示す断面図である。第2の容器60の第1の開口64は基板搬入出口28と対向する位置にある。以降、第1の開口64と基板搬入出口28とが対向する状態における第2の容器60の位置を第1の位置とする。すなわち、基板搬入工程では、第2の容器60は第1の位置にある。
そして、シャッタ27を開き、シャッタ27、基板搬入出口28、第1の開口64を通して、基板12を第2の容器60の内部に搬入する。基板の搬入は、図2(b)に示すように、搬送台車の基板載置先端のフォーク部70に基板12を載置して行う。
図1は、原子層堆積装置10の薄膜形成工程時の状態を示す断面図である。第2の容器60の第1の開口64はガス導入口29と対向する位置にある。以降、第1の開口64とガス導入口29とが対向する状態における第2の容器60の位置を第2の位置とする。すなわち、薄膜形成工程では、第2の容器60は第2の位置にある。
図3は、原子層堆積装置10の基板搬出工程時の状態を示す断面図である。第2の容器60は第1の位置にある。
図4は、原子層堆積装置10のクリーニング工程時の状態を示す断面図である。第1の容器20の下側部分34と上側部分40とが分離した状態となっている。
12 基板
20 第1の容器
22 第1の内部空間
24,25 ヒータ
26 壁面
27 シャッタ
28 基板搬入出口
29 ガス導入口
30,30a,30b ガス導入管
31 防着板
32 底面
33 Oリング
34 下側部分
36 第1の移動機構
36a 支持機構
37 キャスタ
38 第2の移動機構
38a 支持機構
40 上側部分
42 排気管
44 排気部
60 第2の容器
62 第2の内部空間
64 第1の開口
66,66a,66b 第2の開口
67 基板支持部
68 排気管
69 排気部
70 フォーク部
80 固定部材
82 角型ベローズ
83 防着板
84,88 スペーサ
86a,86b,90a,90b Oリング
100 制御部
Claims (10)
- 基板上に薄膜を形成する原子層堆積装置であって、
第1の内部空間を形成する容器であって、基板を搬入又は搬出するための基板搬入出口と、基板上に薄膜を形成するガスを内部に導入するためのガス導入口とを異なる位置に備える第1の容器と、
前記第1の容器の内部に設けられ、前記第1の内部空間と隔てられる第2の内部空間を形成し、第1の開口を備える第2の容器と、
前記第2の容器を所定の方向に移動する第1の移動機構と、
基板を搬入又は搬出する場合、前記基板搬入出口と前記第1の開口とが対向する第1の位置に前記第2の容器を移動し、基板上に薄膜を形成する場合、前記ガス導入口と前記第1の開口とが対向する第2の位置に前記第2の容器を移動するように、前記第1の移動機構を制御する制御部と、
を有することを特徴とする原子層堆積装置。 - 前記基板搬入出口と前記ガス導入口とは、前記第1の容器の同じ壁面に設けられている、請求項1に記載の原子層堆積装置。
- 前記第2の容器は筒形状であり、この筒形状の長手方向に該第2の容器を押えることにより、前記第2の内部空間を前記第1の内部空間から隔てる押え部材を備える、請求項1又は2のいずれかに記載の原子層堆積装置。
- 前記第2の容器は、前記第1の開口を備える側と反対側の端に、前記第2の内部空間内のガスが該第2の内部空間外に流れる第2の開口を備える、請求項3に記載の原子層堆積装置。
- 前記第1の容器は、該第1の容器の底面を含む下側部分と、該下側部分以外の上側部分とに分離可能に構成され、
前記原子層堆積装置は、前記下側部分を前記上側部分から分離するように移動する第2の移動機構を備え、
前記制御部は、前記第2の容器を前記第1の容器の外部に取り出す場合、前記第2の容器が外部に取り出せる位置である第3の位置に移動するように、前記第2の移動機構を制御する、請求項1乃至4のいずれかに記載の原子層堆積装置。 - 第1の内部空間を形成する第1の容器と、該第1の容器の内部に設けられ、該第1の内部空間と隔てられる第2の内部空間を形成する第2の容器とを用い、原子層堆積方法により基板上に薄膜を形成する薄膜形成方法であって、
前記第2の容器が備える第1の開口が、前記第1の容器が備える、基板を搬入又は搬出するための基板搬入出口と対向する第1の位置に移動し、基板を搬入する基板搬入工程と、
前記第1の開口が、前記第1の容器が備える、基板上に薄膜を形成するガスを前記第2の内部空間に導入するためのガス導入口と対向する第2の位置に移動し、薄膜を形成する薄膜形成工程と、
前記第1の開口が、前記基板搬入出口と対向する位置に移動し、基板を搬出する基板搬出工程と、
を有することを特徴とする薄膜形成方法。 - 前記基板搬入出口が設けられる壁面と同じ壁面に設けられる前記ガス導入口を通して、基板上に薄膜を形成するガスを前記第2の内部空間に導入する、請求項6に記載の薄膜形成方法。
- 前記第2の容器は筒形状であり、
前記第2の内部空間を前記第1の内部空間から隔てるように、前記第2の容器の筒形状の長手方向に該第2の容器を押えて、前記第2の容器を前記第1の容器の内部で固定する工程を有する、請求項6又は7に記載の薄膜形成方法。 - 前記第2の容器が、前記第1の開口を備える側と反対側の端に備える第2の開口から、前記第2の内部空間内のガスを該第2の内部空間外に流す、請求項8に記載の薄膜形成方法。
- 前記第1の容器は、該第1の容器の底面を含む下側部分と、該下側部分以外の上側部分とに分離可能に構成され、
前記第2の容器を前記第1の容器の外部に取り出すために、前記第2の容器が外部に取り出せる位置である第3の位置に移動するように、前記下側部分を移動する工程を有する、請求項6乃至9のいずれかに記載の薄膜形成方法。
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| US13/203,400 US9068261B2 (en) | 2009-03-10 | 2010-03-03 | Atomic layer deposition apparatus and thin film forming method |
| PCT/JP2010/001462 WO2010103751A1 (ja) | 2009-03-10 | 2010-03-03 | 原子層堆積装置及び薄膜形成方法 |
| KR1020117023449A KR101224975B1 (ko) | 2009-03-10 | 2010-03-03 | 원자층 퇴적 장치 및 박막 형성 방법 |
| EP10750510.9A EP2408003B1 (en) | 2009-03-10 | 2010-03-03 | Atomic layer deposition apparatus and thin film forming method |
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2009
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| JP2014082413A (ja) * | 2012-10-18 | 2014-05-08 | Dainippon Printing Co Ltd | ナノインプリントリソグラフィ用テンプレートブランク、その製造方法、および、ナノインプリントリソグラフィ用テンプレートの製造方法 |
| JP2018046212A (ja) * | 2016-09-15 | 2018-03-22 | 大日本印刷株式会社 | 多段構造体を有するテンプレートの製造方法 |
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| Publication number | Publication date |
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| JP2010212434A (ja) | 2010-09-24 |
| EP2408003A1 (en) | 2012-01-18 |
| US9068261B2 (en) | 2015-06-30 |
| TW201043726A (en) | 2010-12-16 |
| TWI500807B (zh) | 2015-09-21 |
| US20110305836A1 (en) | 2011-12-15 |
| KR101224975B1 (ko) | 2013-01-22 |
| EP2408003B1 (en) | 2014-09-24 |
| WO2010103751A1 (ja) | 2010-09-16 |
| KR20110129453A (ko) | 2011-12-01 |
| EP2408003A4 (en) | 2013-08-14 |
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