JP2021141116A - 静電チャックの製造方法、静電チャック及び基板処理装置 - Google Patents
静電チャックの製造方法、静電チャック及び基板処理装置 Download PDFInfo
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- JP2021141116A JP2021141116A JP2020035153A JP2020035153A JP2021141116A JP 2021141116 A JP2021141116 A JP 2021141116A JP 2020035153 A JP2020035153 A JP 2020035153A JP 2020035153 A JP2020035153 A JP 2020035153A JP 2021141116 A JP2021141116 A JP 2021141116A
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- Prior art keywords
- ceramic plate
- hole
- electrostatic chuck
- flow path
- manufacturing
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/62—Forming laminates or joined articles comprising holes, channels or other types of openings
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
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- C04B2237/68—Forming laminates or joining articles wherein at least one substrate contains at least two different parts of macro-size, e.g. one ceramic substrate layer containing an embedded conductor or electrode
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- C—CHEMISTRY; METALLURGY
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- C04B2237/72—Forming laminates or joined articles comprising at least two interlayers directly next to each other
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
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Abstract
Description
一実施形態に係る基板処理装置1について、図1を用いて説明する。図1は、一実施形態に係る基板処理装置1の一例を示す断面模式図である。基板処理装置1は、処理容器10を備える。処理容器10は、内部に処理空間10sを提供する。処理容器10は本体12を含む。本体12は、略円筒形状を有する。本体12は、例えばアルミニウムから形成される。本体12の内壁面上には、耐腐食性を有する膜が設けられている。当該膜は、酸化アルミニウム、酸化イットリウムなどのセラミックであってよい。
次に、静電チャック20の内部に形成された、伝熱ガスを流す流路22aについて、図2及び図3を参照しながら説明する。図2は、一実施形態に係る静電チャック20に形成された流路22aの一例を示す図である。図3は、図2のA−A断面の一例を示す図である。
次に、静電チャック20の製造方法の一例について、図4及び図5を参照しながら説明する。図4は、一実施形態に係る静電チャック20の製造方法の一例を示すフローチャートである。図5は、一実施形態に係る静電チャック20の製造方法の一例を説明するための図である。
実施形態に係る静電チャック20の製造方法では、電極20b内に流路を形成してもよい。つまり、図3に示す電極20bをスラリー層で形成してもよい。図6は、一実施形態に係る静電チャック20の製造方法の他の例を説明するための図である。図7は、図2のA−A断面の他の例を示す図である。
実施形態に係る静電チャック20の製造方法では、スラリー層22、スラリー層20b1及びスラリー層27bを以下の手法で焼成することにより、流路22aを有するポーラス層として形成してもよい。
次に、再生時の実施形態に係る静電チャックの製造方法について、図9を参照しながら説明する。図9は、再生時の実施形態に係る静電チャックの製造方法の一例を示すフローチャートである。
10 処理容器
10s 処理空間
14 載置台
16 電極プレート
18 基台
20 静電チャック
20a 載置面
20b 電極
21 第1のセラミック板
21a 第1の孔
21b 副流路
22a 流路
23 第2のセラミック板
23a 第2の孔
24 ガス供給ライン
23b 主流路
26 チラーユニット
28 セラミック板
30 上部電極
52 ガス源
80 制御部
W 基板
Claims (20)
- 第1の孔が形成された第1のセラミック板を準備する工程と、
前記第1の孔とは水平方向において異なる位置に形成された第2の孔が形成された第2のセラミック板を準備する工程と、
前記第1のセラミック板又は前記第2のセラミック板に、前記第1の孔と前記第2の孔とを接続する流路が形成されたスラリー層をスラリーにより形成する工程と、
前記第1のセラミック板と前記第2のセラミック板とを前記スラリー層を介して積層させる工程と、
前記スラリー層を介して積層させた前記第1のセラミック板と前記第2のセラミック板とを接合する工程と、
を有する静電チャックの製造方法。 - 前記第1のセラミック板及び前記第2のセラミック板は、酸化アルミニウムの焼結体、又は炭化シリコンが添加された酸化アルミニウムの焼結体である、
請求項1に記載の静電チャックの製造方法。 - 前記スラリーは、酸化アルミニウムの粉末又は炭化シリコンが添加された酸化アルミニウムの粉末を溶媒に混合させることにより形成される、
請求項1又は2に記載の静電チャックの製造方法。 - 前記第1のセラミック板又は前記第2のセラミック板は、電極を有する、
請求項1〜3のいずれか一項に記載の静電チャックの製造方法。 - 前記スラリーは、導電性粉末を溶媒に混合させることにより形成される、
請求項1又は2に記載の静電チャックの製造方法。 - 前記導電性粉末は、炭化タングステン、炭化モリブデン、炭化タンタルの何れかである、
請求項5に記載の静電チャックの製造方法。 - 前記スラリー層は、スクリーン印刷により形成される、
請求項1〜6のいずれか一項に記載の静電チャックの製造方法。 - 前記流路は、主流路と、前記主流路と接続し、かつ前記主流路より幅の狭い副流路とを含む、
請求項1〜7のいずれか一項に記載の静電チャックの製造方法。 - 前記主流路は、前記第2の孔と接続され、前記副流路は、前記第1の孔と接続されるように構成される、
請求項8に記載の静電チャックの製造方法。 - 前記第1の孔の開口は、前記第2の孔の開口よりも小さい、
請求項1〜9のいずれか一項に記載の静電チャックの製造方法。 - 前記流路の高さは、5μm〜30μmである、
請求項1〜10のいずれか一項に記載の静電チャックの製造方法。 - 前記第1のセラミック板を削り、前記第2のセラミック板を露出させる工程と、
第1の孔を有する新たな第1のセラミック板を準備する工程と、
新たな前記第1のセラミック板又は前記第2のセラミック板に、前記第1の孔と前記第2の孔とを接続する流路が形成されたスラリー層をスラリーにより形成する工程と、
新たな前記第1のセラミック板と前記第2のセラミック板とを前記スラリー層を介して積層させる工程と、
前記スラリー層を介して積層させた新たな前記第1のセラミック板と前記第2のセラミック板とを接合し、静電チャックを再生する工程と、を有する
請求項1〜11のいずれか一項に記載の静電チャックの製造方法。 - セラミック板を有する静電チャックであって、
前記セラミック板は、
上面に第1の孔が形成され、
下面に前記第1の孔とは水平方向において異なる位置に第2の孔が形成され、
前記第1の孔と前記第2の孔とを接続する流路が内部に形成された、
静電チャック。 - 前記流路は、導電性部材により形成された、
請求項13に記載の静電チャック。 - 前記流路は、ポーラス状に形成された、
請求項13に記載の静電チャック。 - 前記流路は、主流路と、前記主流路と接続し、かつ前記主流路より幅の狭い副流路とを含み、
前記主流路は、前記第2の孔と接続され、前記副流路は、前記第1の孔と接続された、
請求項13〜15のいずれか一項に記載の静電チャック。 - 前記第1の孔の開口は、前記第2の孔の開口よりも小さい、
請求項13〜16のいずれか一項に記載の静電チャック。 - 処理容器と、
前記処理容器内に配置され、基板を載置する載置台と、
前記載置台に設けられ、上面に基板を保持するセラミック板を有する静電チャックと、を有し、
前記静電チャックは、
前記セラミック板の前記上面に第1の孔が形成され、
前記セラミック板の下面に前記第1の孔とは水平方向において異なる位置に第2の開口孔が形成され、
前記第1の孔と前記第2の孔とを接続する流路が前記セラミック板の内部に形成された
基板処理装置。 - 前記第2の孔は、ガス供給ラインを介してガス源に接続されるように構成される、
請求項18に記載の基板処理装置。 - 前記流路は、ポーラス状に形成されるように構成される、
請求項18又は19に記載の基板処理装置。
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KR1020210021764A KR20210111157A (ko) | 2020-03-02 | 2021-02-18 | 정전 척의 제조 방법, 정전 척 및 기판 처리 장치 |
TW110105479A TW202135209A (zh) | 2020-03-02 | 2021-02-18 | 靜電夾頭之製造方法、靜電夾頭及基板處理裝置 |
US17/181,661 US20210272834A1 (en) | 2020-03-02 | 2021-02-22 | Electrostatic chuck manufacturing method, electrostatic chuck, and substrate processing apparatus |
CN202110202917.XA CN113345828A (zh) | 2020-03-02 | 2021-02-23 | 静电卡盘的制造方法、静电卡盘以及基板处理装置 |
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KR20240052914A (ko) | 2022-10-14 | 2024-04-23 | 엔지케이 인슐레이터 엘티디 | 웨이퍼 적재대 |
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