JP2021082788A - 熱伝導性部材、プラズマ処理装置及び電圧制御方法 - Google Patents
熱伝導性部材、プラズマ処理装置及び電圧制御方法 Download PDFInfo
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- 238000012545 processing Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims description 23
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 239000003989 dielectric material Substances 0.000 claims description 15
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000012546 transfer Methods 0.000 description 25
- 238000001179 sorption measurement Methods 0.000 description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
実施形態に係るプラズマ処理装置1について、図1を用いて説明する。図1は、実施形態に係るプラズマ処理装置の一例を示す断面模式図である。
熱伝導性部材25は、静電チャック20とエッジリング24との間に配置され、シート状の部材である。ただし、熱伝導性部材25は、シート状に限られず、例えばゲル状の物質でもよい。
熱伝導性部材25がシリコンから形成されている場合、シリコンの誘電率εrは6であるため熱伝導性部材25の内部で図2に示す分極が生じない。このため、熱伝導性部材25がシリコンから形成されている場合、静電チャック20による静電吸着を十分に行えない場合がある。
熱伝導性部材25の厚みは、0.5mm以下であることが好ましい。その理由について説明する。
熱伝導性部材25及び静電チャック20の構成の変形例について、図4を参照しながら簡単に説明する。図4は、実施形態に係る熱伝導性部材25及び静電チャック20の構成の変形例を示す図である。
次に、以上に説明した熱伝導性部材25が配置されたプラズマ処理装置1を用いたエッジリング用電極21の電圧制御方法について、図5及び図6を参照して説明する。図5は、実施形態に係る電圧制御方法の一例を示すフローチャートである。図6は、実施形態に係る電圧制御方法を説明するための図である。
10 処理容器
10s プラズマ処理空間
14 載置台
20 静電チャック
20a 基板用電極
20c 第1の静電チャック
20e 第2の静電チャック
21 エッジリング用電極
24 エッジリング
25 熱伝導性部材
29 温度センサ
34 上部電極
200 制御装置
201 制御部
W 基板
TB テーブル
Claims (11)
- プラズマ処理空間を提供する処理容器内にて基板が載置される第1の静電チャックと、
前記第1の静電チャックの外周に設けられる第2の静電チャックと、
前記基板が載置される領域を囲むように前記第2の静電チャックの上に設けられ、少なくとも一部が導電性部材からなるエッジリングと、
前記第2の静電チャックの内部の、前記エッジリングに対応する領域にて前記エッジリングを静電吸着するための電圧が印加されるエッジリング用電極と、を有するプラズマ処理装置に設けられ、
前記第2の静電チャックと前記エッジリングとの間に配置される熱伝導性部材。 - 前記熱伝導性部材は、粘着性を有しない、
請求項1に記載の熱伝導性部材。 - 前記熱伝導性部材の誘電率は20以上である、
請求項1又は2に記載の熱伝導性部材。 - 前記熱伝導性部材の厚みは0.5mm以下である、
請求項3に記載の熱伝導性部材。 - 前記熱伝導性部材は、シリコンとアルミナとに高誘電材料を添加して形成されている、
請求項1〜4のいずれか一項に記載の熱伝導性部材。 - 前記熱伝導性部材のプラズマに曝露される部分は、耐プラズマ性を有する膜によりコーティングされている、
請求項1〜5のいずれか一項に記載の熱伝導性部材。 - 前記エッジリング用電極は、複数の電極を有し、エッジリングを静電吸着するための電圧が印加されるように構成され、
請求項1〜6のいずれか一項に記載の熱伝導性部材。 - 前記熱伝導性部材は、炭化シリコン又は炭化タングステンとアルミナとに高誘電材料を添加して形成されている、
請求項1〜7のいずれか一項に記載の熱伝導性部材。 - 前記第2の静電チャック内の前記エッジリングと対向する領域に冷媒流路及び/又はヒータを設ける、
請求項1〜8のいずれか一項に記載の熱伝導性部材。 - プラズマ処理空間を提供する処理容器内にて基板が載置される第1の静電チャックと、
前記第1の静電チャックの外周に設けられる第2の静電チャックと、
前記基板が載置される領域を囲むように前記第2の静電チャックの上に設けられ、少なくとも一部が導電性部材からなるエッジリングと、
前記第2の静電チャックと前記エッジリングとの間に配置される熱伝導性部材と、
前記第2の静電チャックの内部の、前記エッジリングに対応する領域にて前記エッジリングを静電吸着するための電圧が印加されるエッジリング用電極と、
を有するプラズマ処理装置。 - プラズマ処理空間を提供する処理容器内にて基板が載置される第1の静電チャックと、
前記第1の静電チャックの外周に設けられる第2の静電チャックと、
前記基板が載置される領域を囲むように前記第2の静電チャックの上に設けられ、少なくとも一部が導電性部材からなるエッジリングと、
前記第2の静電チャックの内部の、前記エッジリングに対応する領域にて前記エッジリングを静電吸着するための電圧が印加されるエッジリング用電極と、を有するプラズマ処理装置にて行われ、
前記基板を処理する工程と、
前記エッジリングの温度を取得する工程と、
前記エッジリングの温度と前記エッジリング用電極に印加される電圧との相関関係を示す情報を記憶した記憶部を参照して、取得した前記エッジリングの温度に応じて前記エッジリング用電極に印加する電圧を制御する工程と、
を有する電圧制御方法。
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JP2019211578A JP7370228B2 (ja) | 2019-11-22 | 2019-11-22 | プラズマ処理装置 |
TW109138998A TW202125675A (zh) | 2019-11-22 | 2020-11-09 | 熱傳導性構件、電漿處理裝置及電壓控制方法 |
KR1020200151203A KR20210063234A (ko) | 2019-11-22 | 2020-11-12 | 열 전도성 부재, 플라즈마 처리 장치 및 전압 제어 방법 |
CN202011270560.0A CN112837986A (zh) | 2019-11-22 | 2020-11-13 | 导热性构件、等离子体处理装置以及电压控制方法 |
US16/951,005 US20210159058A1 (en) | 2019-11-22 | 2020-11-18 | Thermal conductive member, plasma processing apparatus, and voltage control method |
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DE112022002189T5 (de) | 2021-05-14 | 2024-02-08 | Lapis Semiconductor Co., Ltd. | Stützgestell, Stützvorrichtung und Verfahren zur Herstellung eines Halbleiterbauelements |
JP7499651B2 (ja) | 2020-09-02 | 2024-06-14 | 東京エレクトロン株式会社 | 載置台及びプラズマ処理装置 |
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- 2020-11-12 KR KR1020200151203A patent/KR20210063234A/ko unknown
- 2020-11-13 CN CN202011270560.0A patent/CN112837986A/zh active Pending
- 2020-11-18 US US16/951,005 patent/US20210159058A1/en not_active Abandoned
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JP7499651B2 (ja) | 2020-09-02 | 2024-06-14 | 東京エレクトロン株式会社 | 載置台及びプラズマ処理装置 |
DE112022002189T5 (de) | 2021-05-14 | 2024-02-08 | Lapis Semiconductor Co., Ltd. | Stützgestell, Stützvorrichtung und Verfahren zur Herstellung eines Halbleiterbauelements |
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KR20210063234A (ko) | 2021-06-01 |
US20210159058A1 (en) | 2021-05-27 |
CN112837986A (zh) | 2021-05-25 |
TW202125675A (zh) | 2021-07-01 |
JP7370228B2 (ja) | 2023-10-27 |
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