JP6896754B2 - 物理的気相堆積プロセスにおけるイオン分画を制御するための方法および装置 - Google Patents
物理的気相堆積プロセスにおけるイオン分画を制御するための方法および装置 Download PDFInfo
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Description
したがって、本発明者らは、物理的気相堆積プロセスにおけるイオン分画を制御するための方法および装置の改善された実施形態を提供した。
前述の事項は、本開示の実施形態を対象としているが、本開示の他のおよびさらなる実施形態が本開示の基本的な範囲から逸脱せずに考案されてもよい。
Claims (15)
- 所与の直径を有する基板を処理するためのプロセスチャンバであって、
内部容積、およびスパッタされるターゲットを含むリッドアセンブリを有する本体であって、前記内部容積は、前記所与の直径を有する中央部分および前記中央部分を取り囲む周辺部分を含む、本体と、
前記ターゲット上方に配置されたマグネトロンであって、前記プロセスチャンバの中心軸の周りで複数の磁石を回転させて前記内部容積の前記周辺部分に環状プラズマを形成するように構成され、前記複数の磁石の回転半径が前記所与の直径と等しいかまたはそれよりも大きい、マグネトロンと、
前記内部容積の中に前記ターゲットに対向して配置され、前記所与の直径を有する基板を支持するように構成された支持面を有する基板支持体と、
前記周辺部分において実質的に垂直の磁力線を有する磁場を形成するために、前記本体の周りにおよび前記ターゲットに近接して配置された第1の組の磁石と、
前記支持面の中心に向けられた磁力線を有する磁場を形成するために、前記本体の周りにおよび前記基板支持体の支持面上方に配置された第2の組の磁石と、
前記ターゲットを電気的にバイアスするために、前記ターゲットに結合された第1の電源と、
前記基板支持体を電気的にバイアスするために、前記基板支持体に結合された第2の電源と、
を備えるプロセスチャンバ。 - 前記ターゲットと前記基板支持体との間に配置されたコリメータ
をさらに備える、請求項1に記載のプロセスチャンバ。 - 前記コリメータが、前記所与の直径と等しいかまたはそれよりも大きい直径を有する中央領域、および前記中央領域を取り囲む周辺領域を含む、請求項2に記載のプロセスチャンバ。
- 前記コリメータの基板対向面と同一であるかまたはその面より下の高さで前記本体の周りに配置された第3の組の磁石であって、前記中央部分に向かってならびに前記支持面の前記中心に向かって内向きにおよび下方に向けられた磁力線を有する磁場を生成するように構成されている、第3の組の磁石
をさらに備える、請求項2に記載のプロセスチャンバ。 - 前記コリメータがバイアスされている、請求項2に記載のプロセスチャンバ。
- 前記コリメータが400mm〜600mmの第1の高さだけ前記基板支持体の前記支持面から離間されている、請求項2に記載のプロセスチャンバ。
- 前記コリメータが25mm〜75mmの第2の高さだけ前記ターゲットから離間されている、請求項2に記載のプロセスチャンバ。
- 前記マグネトロンが前記所与の直径と前記内部容積の内径との間の回転半径を有する、請求項1から7までのいずれか1項に記載のプロセスチャンバ。
- 前記回転半径が5.5インチ〜7インチの間で調整可能である、請求項1から7までのいずれか1項に記載のプロセスチャンバ。
- 前記第2の電源が、スパッタされた材料を前記基板支持体の中心に向かって引き寄せるように構成されている、請求項1から7までのいずれか1項に記載のプロセスチャンバ。
- ターゲットからの材料をスパッタするために、基板上方のプロセスチャンバの環状領域内部に、および前記ターゲットに近接してプラズマを形成するステップであって、前記環状領域の内径は、前記プラズマの主要部分が前記基板の上方でありかつ半径方向外側の位置に配置されるように、前記基板の直径と等しいかまたはそれよりも大きい、ステップと、
前記ターゲットからスパッタされた材料を前記基板に向かって誘導するステップと、
前記ターゲットからスパッタされた材料を前記基板上に堆積させるステップと、
を含む、基板を処理する方法。 - 前記ターゲットからスパッタされた材料を誘導するステップが、
前記環状領域の下に、および前記ターゲットと前記基板との間に配置されたコリメータによって材料を誘導するステップ、
前記環状領域内に実質的に垂直の磁力線を有する磁場を形成するために、第1の組の磁石を使用して第1の磁場を生成するステップ、
前記基板の中心に向けられた磁力線を有する磁場を形成するために、第2の組の磁石を使用して第2の磁場を生成するステップ、
または
前記基板の前記中心に向かって内向きにおよび下方に向けられた磁力線を有する磁場を生成するために、第3の組の磁石を使用して第3の磁場を生成するステップ、
のうちの少なくとも1つをさらに含む、請求項11に記載の方法。 - 前記基板に向かってイオンを引きつけるために、前記基板を支持する基板支持体を電気的にバイアスするステップ、
をさらに含む、請求項11または12に記載の方法。 - 前記ターゲットからスパッタされた材料を誘導するステップが、
前記環状領域の下に、および前記ターゲットと前記基板との間に配置されたコリメータによって材料を誘導するステップと、
前記プラズマ中に形成されたイオンの極性と同一の極性を有する電圧によって前記コリメータをバイアスするステップ、または
前記環状領域における、および前記コリメータを通る実質的に垂直の磁力線を有する磁場を形成するために、第1の組の磁石を使用して第1の磁場を生成するステップ
のうちの少なくとも1つのステップと、
をさらに含む、請求項11に記載の方法。 - 前記環状領域の下に、および前記ターゲットと前記基板との間に配置されたコリメータによって材料を誘導するステップと、
前記プラズマ中に形成されたイオンの極性と同一の極性を有する電圧によって前記コリメータをバイアスするステップと、
前記環状領域における、および前記コリメータを通る実質的に垂直の磁力線を有する磁場を形成するために、第1の組の磁石を使用して第1の磁場を生成するステップと、
前記基板の中心に向けられた磁力線を有する磁場を形成するために、第2の組の磁石を使用して第2の磁場を生成するステップと、
前記基板の前記中心に向かって内向きにおよび下方に向けられた磁力線を有する磁場を生成するために、第3の組の磁石を使用して第3の磁場を生成するステップと、
前記基板に向かってイオンを引きつけるために、前記基板を支持する基板支持体を電気的にバイアスするステップと、
をさらに含む、請求項11に記載の方法。
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| US201662304173P | 2016-03-05 | 2016-03-05 | |
| US62/304,173 | 2016-03-05 | ||
| PCT/US2017/020656 WO2017155812A1 (en) | 2016-03-05 | 2017-03-03 | Methods and apparatus for controlling ion fraction in physical vapor deposition processes |
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| US10658222B2 (en) | 2015-01-16 | 2020-05-19 | Lam Research Corporation | Moveable edge coupling ring for edge process control during semiconductor wafer processing |
| JP6896754B2 (ja) | 2016-03-05 | 2021-06-30 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | 物理的気相堆積プロセスにおけるイオン分画を制御するための方法および装置 |
| TWI849322B (zh) * | 2017-11-21 | 2024-07-21 | 美商蘭姆研究公司 | 底部和中間邊緣環 |
| WO2019103722A1 (en) | 2017-11-21 | 2019-05-31 | Lam Research Corporation | Bottom and middle edge rings |
| BE1026449B1 (fr) * | 2018-07-05 | 2020-02-03 | Diarotech | Procédé et dispositif de synthèse de diamant par CVD |
| CN118398464A (zh) | 2018-08-13 | 2024-07-26 | 朗姆研究公司 | 可更换和/或可折叠的用于等离子鞘调整的并入边缘环定位和定心功能的边缘环组件 |
| JP7262235B2 (ja) * | 2019-01-31 | 2023-04-21 | 株式会社アルバック | スパッタリング装置及びスパッタリング方法 |
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| KR102383703B1 (ko) | 2022-04-08 |
| US20170253959A1 (en) | 2017-09-07 |
| CN112599401B (zh) | 2024-03-22 |
| IL261173B (en) | 2022-11-01 |
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