JP2021009932A - エッチング方法及びプラズマ処理装置 - Google Patents
エッチング方法及びプラズマ処理装置 Download PDFInfo
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- 238000012545 processing Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 28
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- 239000010703 silicon Substances 0.000 claims description 9
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 8
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
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- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
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Abstract
Description
一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、一実施形態に係るプラズマ処理装置1の一例を示す断面模式図である。
以下、静電チャック及び環状部材の分割構造について詳細に説明する。以下の説明では、図1と共に、図2を参照する。図2は、一実施形態に係る静電チャック及び環状部材26の分割構造を示す図である。図2では、静電チャック20A上に環状部材26が搭載されている状態が示されている。図2に示す静電チャック20Aは、プラズマ処理装置1の静電チャック20として用いられ得る。
C=ε0×εr×S/d・・・(1)
C(F)は、基板Wの外周部の下面と静電チャック20の第3領域20cの上面との間の空間Aにおける静電容量である。式(1)及び式(2)から空間Aにおけるインピーダンスを算出できる。
次に、第2環状部材の消耗量と、第1環状部材によるプラズマ制御の一例について、図4を参照しながら説明する。図4は、第2環状部材26bの消耗量と、第1環状部材26aによるプラズマ制御の一例を示す図である。
次に図8及び図9を参照して、一実施形態の変形例1に係る環状部材26の分割構造について説明する。図8は、一実施形態の変形例1に係る環状部材の分割構造を示す図である。図9は、一実施形態の変形例1に係る第1環状部材の材料の一例を示す図である。
次に、図10を参照して、一実施形態の変形例2に係る環状部材26の分割構造について説明する。図10は、一実施形態の変形例2に係る環状部材の一例を示す図である。
14 支持台
15 カバーリング
16 電極プレート
18 下部電極
18f 流路
20 静電チャック
22 チラーユニット
26 環状部材
26a 第1環状部材
26b 第2環状部材
30 上部電極
34 天板
36 支持体
40 ガスソース群
46 シールド
48 バッフルプレート
61 第1の高周波電源
62 第2の高周波電源
80 制御部
W ウェハ
Claims (10)
- 支持台に載置された基板の周囲に環状部材を有するプラズマ処理装置にて実行されるエッチング方法であって、
前記環状部材は、第1環状部材と、前記第1環状部材よりも外側に配置される第2環状部材と、に分割され、
前記第1環状部材の少なくとも一部は、前記基板の外周部の下面と前記支持台の上面との間の空間に配置され、
前記第2環状部材の消耗量に応じて、前記第1環状部材により前記空間の誘電率を調整する工程と、
前記基板をエッチングする工程と、を有する、エッチング方法。 - 前記空間の誘電率を調整する工程は、前記第1環状部材の材質、厚み及び形状の少なくともいずれかを替えて調整する、
請求項1に記載のエッチング方法。 - 前記空間の誘電率を調整する工程は、前記第2環状部材の誘電率に対する前記第1環状部材の誘電率を替えて調整する、
請求項1又は2に記載のエッチング方法。 - 前記第1環状部材は、周方向に複数に分割され、
前記空間の誘電率を周方向で調整する、
請求項1〜3のいずれか一項に記載のエッチング方法。 - 隣り合う前記第1環状部材は、材質、厚み及び形状の少なくともいずれかが異なる、
請求項4に記載のエッチング方法。 - 前記第1環状部材は、前記基板の外周部におけるエッチング特性に応じて誘電率の異なる複数の前記第1環状部材を周方向に配置する、
請求項4又は5に記載のエッチング方法。 - 前記第1環状部材の材質は、石英、セラミックス、樹脂、シリコン又はシリコン炭化物のいずれかである、
請求項1〜6のいずれか一項に記載のエッチング方法。 - 前記セラミックスは、アルミナ、ジルコニア又はコージライトのいずれかである、
請求項7に記載のエッチング方法。 - 前記樹脂は、PTFE又はPEEKのいずれかである、
請求項7又は8に記載のエッチング方法。 - 請求項1〜9のいずれか一項に記載のエッチング方法を実行する制御部を有する、プラズマ処理装置。
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JP2019123131A JP7278160B2 (ja) | 2019-07-01 | 2019-07-01 | エッチング方法及びプラズマ処理装置 |
CN202010572315.9A CN112185789A (zh) | 2019-07-01 | 2020-06-22 | 蚀刻方法和等离子体处理装置 |
KR1020200076587A KR20210003046A (ko) | 2019-07-01 | 2020-06-23 | 에칭 방법 및 플라즈마 처리 장치 |
US16/916,917 US11373895B2 (en) | 2019-07-01 | 2020-06-30 | Etching method and plasma processing apparatus |
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JP7527928B2 (ja) * | 2019-12-02 | 2024-08-05 | エーエスエム・アイピー・ホールディング・ベー・フェー | 基板処理装置、基板処理方法 |
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US20210005503A1 (en) | 2021-01-07 |
KR20210003046A (ko) | 2021-01-11 |
US11373895B2 (en) | 2022-06-28 |
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