JP7169319B2 - ガス孔に開口縮小プラグを有する大電力静電チャック - Google Patents
ガス孔に開口縮小プラグを有する大電力静電チャック Download PDFInfo
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- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6831—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using electrostatic chucks
- H01L21/6833—Details of electrostatic chucks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32532—Electrodes
- H01J37/32568—Relative arrangement or disposition of electrodes; moving means
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- H—ELECTRICITY
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- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32697—Electrostatic control
- H01J37/32706—Polarising the substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32715—Workpiece holder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02274—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
- H01L21/02299—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer pre-treatment
- H01L21/02312—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer pre-treatment treatment by exposure to a gas or vapour
- H01L21/02315—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer pre-treatment treatment by exposure to a gas or vapour treatment by exposure to a plasma
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- H—ELECTRICITY
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67098—Apparatus for thermal treatment
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- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
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- H01L21/67109—Apparatus for thermal treatment mainly by convection
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6831—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using electrostatic chucks
Description
[0001]本出願は、2016年6月21日に出願された、「HIGH POWER ESC DESIGN WITH POROUS THROUGH HOLE IN A COOLING PLATE」と題する、米国仮特許出願第62/352,717号、および2016年6月7日に出願された、「HIGH POWER ESC DESIGN WITH POROUS THROUGH HOLE IN A COOLING PLATE」と題する、米国仮特許出願第62/346,802号の優先権を主張する。
Claims (18)
- 処理のためにワークピースを支持する静電チャックであって、
前記ワークピースを支持する上部プレートであって、前記ワークピースを保持する電極を有する上部プレートと、
前記上部プレートの下にある冷却プレートであって、前記上部プレートを冷却する冷却プレートと、
前記冷却プレートおよび前記上部プレートを貫通するガス孔であって、前記上部プレートを通って前記ワークピースにガスを供給するガス孔と、
前記冷却プレートのガス孔内の開口縮小プラグであって、前記ガス孔を通ってガス流を導く開口縮小プラグと
を備え、前記冷却プレートが、前記ガスを前記上部プレート内のテーパ形状のプラグへと供給し、当該テーパ形状のプラグは、前記冷却プレートの反対方向を向く上面と、前記冷却プレートに面する底面とを有し、かつ前記テーパ形状のプラグは、前記冷却プレートから前記上部プレートへの方向で内側に先細りするように狭くなる円錐直径を有し、前記底面が、前記テーパ形状のプラグの最大径を有し、前記上面が、前記テーパ形状のプラグの最小径を有し、前記ガス孔の一部が前記テーパ形状のプラグの前記上面から前記上部プレートを通って延びる、静電チャック。 - 前記開口縮小プラグが、前記ガス孔内でのプラズマ点火を防止する、請求項1に記載の静電チャック。
- 前記開口縮小プラグが、誘電体である、請求項1または2に記載の静電チャック。
- 前記冷却プレートが、導電性である、請求項1から3のいずれか一項に記載の静電チャック。
- 前記テーパ形状のプラグが、多孔性プラグである、請求項1から4のいずれか一項に記載の静電チャック。
- 前記開口縮小プラグが、多孔性セラミック材料から作られている、請求項1から5のいずれか一項に記載の静電チャック。
- 前記多孔性セラミック材料が、窒化アルミニウム(AlN)、酸化アルミニウム(Al2O3)、ポリエーテルエーテルケトン(PEEK)、VELSEL(登録商標)のうちの少なくとも1つを含む、請求項6に記載の静電チャック。
- 前記開口縮小プラグが、当該開口縮小プラグを通ってガス流を導く中央管をさらに含む、請求項1から7のいずれか一項に記載の静電チャック。
- 前記開口縮小プラグが、中実材料で作られている、請求項8に記載の静電チャック。
- 前記開口縮小プラグが、当該開口縮小プラグの高さ全体にわたって延びて当該開口縮小プラグを通ってガス流を導く複数の追加の管をさらに含む、請求項9に記載の静電チャック。
- 前記冷却プレート内のガスチャネルおよび/もしくは前記ガス孔の側壁が、窒化アルミニウムまたはイットリアなどの誘電体コーティングで覆われている、請求項1から10のいずれか一項に記載の静電チャック。
- 前記冷却プレートの上部が、窒化アルミニウムまたはイットリアなどの誘電体コーティングで覆われている、請求項1から11のいずれか一項に記載の静電チャック。
- 上部プレートおよび冷却プレートを備えた静電チャックを使用してワークピースを処理する方法であって、前記冷却プレートから前記上部プレート内のプラグへと前記上部プレート内のガス孔を通って前記ワークピースの裏側に冷却ガスを導くことを含み、前記プラグは、上面と底面を有し、かつテーパ形状を有し、前記上面は前記冷却プレートの反対方向を向き、前記底面は前記冷却プレートに面しており、前記プラグは前記冷却プレートから前記上部プレートへの方向で内側に先細りするように狭くなる円錐直径を有し、前記底面が、前記プラグの最大径を有し、前記上面が、前記プラグの最小径を有し、前記ガス孔が前記プラグの前記上面から前記上部プレートを通って延び、前記導くことが、前記冷却プレート内の開口縮小プラグを通って前記冷却ガスを導くことを含む、方法。
- 前記開口縮小プラグが、前記冷却プレートを通る孔を通ってガスを導く中央管を有する固体金属を含む、請求項13に記載の方法。
- さらに、前記冷却ガスを導く間に、プラズマチャンバ内で前記ワークピースにプラズマを付与することを含む、請求項13に記載の方法。
- プラズマチャンバと、
ガスイオンを含むプラズマを前記プラズマチャンバ内に発生させるプラズマ源と、
ワークピースを支持する静電チャックと、
を備えるプラズマ処理チャンバであって、
前記静電チャックが、
前記ワークピースを支持する上部プレートであって、前記ワークピースを保持する電極を有する上部プレートと、
前記上部プレートの下にある冷却プレートであって、前記上部プレートを冷却する冷却プレートと、
前記冷却プレートおよび前記上部プレートを貫通するガス孔であって、前記上部プレートを通って前記ワークピースにガスを供給するガス孔と、
前記冷却プレートのガス孔内の開口縮小プラグであって、前記ガス孔を通ってガス流を導く開口縮小プラグと、を含み、
前記冷却プレートが、前記ガスを前記上部プレート内のテーパ形状のプラグへと供給し、当該テーパ形状のプラグは、前記冷却プレートの反対方向を向く上面と、前記冷却プレートに面する底面とを有し、かつ前記テーパ形状のプラグは、前記冷却プレートから前記上部プレートへの方向で内側に先細りするように狭くなる円錐直径を有し、前記底面が、前記テーパ形状のプラグの最大径を有し、前記上面が、前記テーパ形状のプラグの最小径を有し、前記ガス孔の一部が前記テーパ形状のプラグの前記上面から前記上部プレートを通って延びる、プラズマ処理チャンバ。 - 前記静電チャックがさらに、前記冷却プレートの下に支持プレートを備え、前記支持プレートは、加圧下で前記ガス孔に前記ガスを供給するためにガスラインに接続するように構成されている、請求項16に記載のチャンバ。
- 前記開口縮小プラグが、前記冷却プレートのガス孔を通って前記上部プレートにガス流を導く中央管を有する多孔性セラミックを含む、請求項16に記載のチャンバ。
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