JP7458195B2 - 載置台、プラズマ処理装置及びクリーニング処理方法 - Google Patents
載置台、プラズマ処理装置及びクリーニング処理方法 Download PDFInfo
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- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 23
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
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- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
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- 238000009616 inductively coupled plasma Methods 0.000 description 1
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Description
図1は、実施形態に係るプラズマ処理装置に搭載される載置台STを示す概略断面図である。載置台STは、気密に構成されたチャンバ内に形成され、ウエハを一例とする基板を載置する。載置台STは、静電チャック5、第1のプレート4、及び第2のプレート6を有する。
次に、図1のBを拡大して示す図3を参照して、スリーブ部材20の構成について説明する。図3は、実施形態に係る載置台STの貫通孔16に設けられたスリーブ部材20を示す図である。図3(a)は、実施形態に係る載置台STの貫通孔16に配置されたスリーブ部材20及びその周辺の縦断面図である。図3(b)は、実施形態に係るスリーブ部材20の斜視図である。
次に、変形例に係るスリーブ部材20について、図4を参照しながら説明する。図4は、貫通孔16に設けられたスリーブ部材20の変形例を示す図である。図4(a)は、変形例に係るスリーブ部材20及びその周辺の縦断面図である。図4(b)は、変形例に係るスリーブ部材20の斜視図である。
次に、実施形態に係る載置台ST又は変形例に係る載置台STを搭載したプラズマ処理装置100の一例を、図5を参照して説明する。図5は、実施形態に係るプラズマ処理装置100を示す概略断面図である。
最後に、実施形態に係る載置台ST又は変形例に係る載置台STを有するプラズマ処理装置100にて実行されるクリーニング処理方法について、図6を参照しながら説明する。図6は、実施形態に係るクリーニング処理方法を示すフローチャートである。実施形態に係るクリーニング処理方法は、制御部90により制御され、プラズマ処理装置100にて実行される。
3 上部電極
4 第1のプレート
5 静電チャック
6 第2のプレート
10a 第1の高周波電源
10b 第2の高周波電源
16 貫通孔
16a、16b、16c 貫通孔
17 共通ガス供給路
19 伝熱ガス供給源
20a 微細孔
20 スリーブ部材
90 制御部
100 プラズマ処理装置
W 基板
ST 載置台
P プラズマ
Claims (8)
- プラズマ処理空間に配置される基台と、
基板を載置し、前記基台の上部に配置される載置部と、
前記載置部と前記基台とを接着する接着層と、
前記載置部と前記基台と前記接着層とを貫通し、伝熱ガスを供給する貫通孔と、
前記貫通孔内に配置されるスリーブ部材と、を有し、
前記スリーブ部材は、前記載置部より薄い円盤状の第1の部分と、
前記第1の部分の下方に形成され、前記第1の部分の直径より大きい直径を有する環状の第2の部分と、
前記第2の部分の下方に形成され、前記第2の部分の直径より小さい直径を有する環状の第3の部分と、を含み、
前記第1の部分及び前記第2の部分は、前記接着層より上方に位置し、前記第1の部分には、細孔が形成され、
第3の部分は接着層に接触していない、かつ、第3の部分は基台に接触していない、載置台。 - 前記細孔が形成される面は、前記第1の部分の上面及び/又は側面である、
請求項1に記載の載置台。 - 前記第1の部分の上面は、前記載置部の上面と同一の高さ、又は前記載置部の上面に設けられたドット形状の凸凹の底部から先端までのいずれかの高さに位置する、
請求項2に記載の載置台。 - 前記面が前記第1の部分の側面である場合、前記細孔が設けられた前記第1の部分の側面と前記載置部の対向面との間に空間を有する、
請求項2又は3に記載の載置台。 - 前記スリーブ部材の側面と前記基台の前記貫通孔の壁面との間に空間を有する、
請求項1~4のいずれか一項に記載の載置台。 - 前記スリーブ部材は、SiC又はセラミックスである、
請求項1~5のいずれか一項に記載の載置台。 - チャンバと、
前記チャンバの内部のプラズマ処理空間に配置される載置台と、を有し、
前記載置台は、
基台と、
基板を載置し、前記基台の上部に配置される載置部と、
前記載置部と基台とを接着する接着層と、
前記載置部と前記基台と前記接着層とを貫通し、伝熱ガスを供給する貫通孔と、
前記貫通孔内に配置されるスリーブ部材と、を有し、
前記スリーブ部材は、前記載置部より薄い円盤状の第1の部分と、
前記第1の部分の下方に形成され、前記第1の部分の直径より大きい直径を有する環状の第2の部分と、
前記第2の部分の下方に形成され、前記第2の部分の直径より小さい直径を有する環状の第3の部分と、を含み、
前記第1の部分及び前記第2の部分は、前記接着層より上方に位置し、前記第1の部分には、細孔が形成され、
第3の部分は接着層に接触していない、かつ、第3の部分は基台に接触していない、プラズマ処理装置。 - 請求項1~6のいずれか一項に記載の載置台がチャンバ内に配置されたプラズマ処理装置のクリーニング処理方法であって、
前記貫通孔から伝熱ガスを供給する工程と、
前記チャンバ内にクリーニングガスを供給する工程と、
前記クリーニングガスのプラズマにより前記チャンバ内をクリーニングする工程と、を有する、クリーニング処理方法。
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JP2020020840A JP7458195B2 (ja) | 2020-02-10 | 2020-02-10 | 載置台、プラズマ処理装置及びクリーニング処理方法 |
CN202110143492.XA CN113257653A (zh) | 2020-02-10 | 2021-02-02 | 载置台、等离子体处理装置以及清洁处理方法 |
US17/166,132 US20210249236A1 (en) | 2020-02-10 | 2021-02-03 | Stage, plasma processing apparatus, and cleaning method |
KR1020210015297A KR20210102075A (ko) | 2020-02-10 | 2021-02-03 | 거치대, 플라즈마 처리 장치 및 클리닝 처리 방법 |
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JP7409535B1 (ja) | 2023-02-22 | 2024-01-09 | Toto株式会社 | 静電チャック及びその製造方法 |
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