JP2019160846A - 被処理体の載置装置及び処理装置 - Google Patents
被処理体の載置装置及び処理装置 Download PDFInfo
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Abstract
Description
まず、本発明の一実施形態に係る処理装置1の一例について、図1を参照しながら説明する。図1は、一実施形態に係る処理装置1の断面の一例を示す図である。本実施形態に係る処理装置1は、RIE(Reactive Ion Etching)型の処理装置である。
次に、図2を参照して、エッジリング30の消耗によって生じるシースの変化と、エッチングレート及びチルティングの変動について説明する。図2(a)に示すように、エッジリング30が新品の場合、ウェハWの上面とエッジリング30の上面とが同じ高さになるようにエッジリング30の厚さが設計されている。このとき、プラズマ処理中のウェハW上のシースとエッジリング30上のシースとは同じ高さになる。この状態では、ウェハW上及びエッジリング30上へのプラズマからのイオンの照射角度は垂直になり、この結果、ウェハW上に形成されるホール等のエッチング形状は垂直になり、エッチングレートの面内分布は均一なる。
[エッジリングと載置台とのコンタクト構造]
まず、第1実施形態に係るエッジリング30と載置台11とのコンタクト構造の一例について、図4を参照しながら説明する。図4(a)は、第1実施形態に係るエッジリング30と載置台11とをコンタクトする構造の一例を示す図である。図4(b)は、第1実施形態の変形例に係るエッジリング30と載置台11とをコンタクトする構造の一例を示す図である。最初に、第1実施形態に係るコンタクト構造について説明する。
次に、図4(b)に示す第1実施形態の変形例に係るエッジリング30と載置台11とのコンタクト構造について、図4(a)に示す第1実施形態のコンタクト構造との相違点を中心に説明する。
[エッジリングと載置台とのコンタクト構造]
次に、第2実施形態に係るエッジリング30と載置台11とのコンタクト構造の一例について、図5を参照しながら説明する。図5は、第2実施形態に係るエッジリング30と載置台11とのコンタクト構造の一例を示す図である。
[エッジリングと載置台とのコンタクト構造]
次に、第3実施形態に係るエッジリング30と載置台11とのコンタクト構造の一例について、図6を参照しながら説明する。図6(a)は、第3実施形態に係るエッジリング30と載置台11とのコンタクト構造の一例を示す図である。図6(b)は、第二の接触部52の分割構造の一例を示す図である。
第1〜第3の実施形態では、可変直流電源28から出力される直流電圧を、第1高周波電源21から出力される高周波電力の給電ライン21bを介してエッジリング30に印加した。これに対して、以下では、変形例における直流電圧の印加方法について、図7を参照しながら説明する。
10 :処理容器
11 :載置台
15 :バッフル板
18 :排気装置
21 :第1高周波電源
22 :第2高周波電源
23 :ブロッキングコンデンサ
24 :ガスシャワーヘッド
25 :静電チャック
25a:吸着電極
25b:誘電層
25c:基台
26 :直流電源
28 :可変直流電源
30 :エッジリング
30a、30b:係止部
31 :冷媒室
35 :伝熱ガス供給部
40 :処理ガス供給部
43 :制御部
50 :接続部
51 :第一の接触部
52 :第二の接触部
53 :接続部
Claims (16)
- 処理容器の内部にて被処理体を載置する載置台と、
前記被処理体の外周部にて前記載置台に載置され、係止部が形成されたエッジリングと、
前記係止部により前記エッジリングに接続される導電性の接続部と、
前記エッジリングを該接続部に接続させた状態で前記エッジリングを前記載置台に対して接触する第一の接触部と、
を有する被処理体の載置装置。 - 前記第一の接触部から下方に配置され、前記載置台に接触される第二の接触部を有する、
請求項1に記載の載置装置。 - 前記導電性の接続部は、
前記第一の接触部から下方に延伸している、
請求項1又は2に記載の載置装置。 - 処理容器の内部にて被処理体を載置する載置台と、
前記被処理体の外周部にて前記載置台に載置されるエッジリングと、
前記エッジリングと前記載置台との外周側に設けられる導電性の接続部と、
前記エッジリングと前記接続部との間に設けられ、前記エッジリングの外周側から該エッジリングを前記接続部に対して接触する第一の接触部と、
前記第一の接触部から下方に配置され、前記載置台に接触される第二の接触部と、
を有する被処理体の載置装置。 - 前記第一の接触部は、全周にわたってリング状に配置される、
請求項1〜4のいずれか一項に記載の載置装置。 - 前記第二の接触部は、複数に分割されて配置される、
請求項2又は4に記載の載置装置。 - 前記第一の接触部と前記第二の接触部とは、前記導電性の接続部又は前記載置台の少なくともいずれかを介して電気的に接続される、
請求項2、4、又は6に記載の載置装置。 - 前記接続部は、前記エッジリングと前記載置台との側面に設けられたインシュレータリングに設けられた凹部に配置され、
前記第一の接触部は、前記接続部に形成された窪みに配置され、前記エッジリングに外周側から接触する、
請求項6に記載の載置装置。 - 前記係止部は、全周にわたって前記エッジリングの外周方向に向かって凹状に窪む、
請求項1又は2に記載の載置装置。 - 前記係止部は、全周にわたって前記エッジリングの外周から凸状に突出する、
請求項1又は2に記載の載置装置。 - 前記第一の接触部は、反力を有する導電性物質である、
請求項1〜10のいずれか一項に記載の載置装置。 - 前記接続部は、固定部材により前記載置台に固定される、
請求項1〜5のいずれか一項に記載の載置装置。 - 前記第一の接触部は、前記係止部の内部にて前記接続部に形成された凹部に配置される、
請求項1〜3のいずれか一項に記載の載置装置。 - 前記載置台を内周部と外周部と電気的に分離する絶縁性部材と、
前記載置台の外周部に接続された直流電圧印加部とを有する、
請求項1〜13のいずれか一項に記載の載置装置。 - 被処理体を処理するための処理空間を画成する処理容器と、
前記処理容器の内部にて被処理体を載置する載置台と、
前記被処理体の外周部にて前記載置台に載置され、係止部が形成されたエッジリングと、
前記係止部により前記エッジリングに接続される導電性の接続部と、
前記エッジリングを該接続部に接続させた状態で前記エッジリングを前記載置台に対して接触する第一の接触部と、
を有する処理装置。 - 被処理体を処理するための処理空間を画成する処理容器と、
前記処理容器の内部にて被処理体を載置する載置台と、
前記被処理体の外周部にて前記載置台に載置されるエッジリングと、
前記エッジリングと前記載置台との外周側に設けられる導電性の接続部と、
前記エッジリングと前記接続部との間に設けられ、前記エッジリングの外周側から該エッジリングを前記接続部に対して接触する第一の接触部と、
前記第一の接触部から下方に配置され、前記載置台に接触される第二の接触部と、
を有する処理装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018041231A JP7055040B2 (ja) | 2018-03-07 | 2018-03-07 | 被処理体の載置装置及び処理装置 |
CN201910161642.2A CN110246740B (zh) | 2018-03-07 | 2019-03-04 | 被处理体的载置装置和处理装置 |
TW108107161A TWI794428B (zh) | 2018-03-07 | 2019-03-05 | 被處理體的載置裝置及處理裝置 |
US16/293,788 US11410871B2 (en) | 2018-03-07 | 2019-03-06 | Workpiece placement apparatus and processing apparatus |
KR1020190025636A KR102705207B1 (ko) | 2018-03-07 | 2019-03-06 | 피처리체의 탑재 장치 및 처리 장치 |
US17/811,121 US11942357B2 (en) | 2018-03-07 | 2022-07-07 | Workpiece placement apparatus and processing apparatus |
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JP7553544B2 (ja) | 2019-08-05 | 2024-09-18 | ラム リサーチ コーポレーション | 基板処理システム用の静電容量の変動が低減された可動エッジリング |
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JP7228989B2 (ja) * | 2018-11-05 | 2023-02-27 | 東京エレクトロン株式会社 | 載置台、エッジリングの位置決め方法及び基板処理装置 |
JP7345289B2 (ja) * | 2019-06-18 | 2023-09-15 | 東京エレクトロン株式会社 | 基板処理装置、基板処理システム及び基板搬送方法 |
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