JP7081740B2 - 環状沿面放電プラズマ装置を利用した点状エッチングモジュール及び点状エッチングモジュールのエッチングプロファイルを制御する方法 - Google Patents
環状沿面放電プラズマ装置を利用した点状エッチングモジュール及び点状エッチングモジュールのエッチングプロファイルを制御する方法 Download PDFInfo
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- 238000005530 etching Methods 0.000 title claims description 120
- 238000000034 method Methods 0.000 title claims description 18
- 239000000758 substrate Substances 0.000 claims description 56
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 230000004308 accommodation Effects 0.000 claims description 12
- 239000007789 gas Substances 0.000 description 84
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 14
- 229910010271 silicon carbide Inorganic materials 0.000 description 13
- 238000001020 plasma etching Methods 0.000 description 11
- 239000012495 reaction gas Substances 0.000 description 8
- 239000010409 thin film Substances 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
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- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 1
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910000161 silver phosphate Inorganic materials 0.000 description 1
- FJOLTQXXWSRAIX-UHFFFAOYSA-K silver phosphate Chemical compound [Ag+].[Ag+].[Ag+].[O-]P([O-])([O-])=O FJOLTQXXWSRAIX-UHFFFAOYSA-K 0.000 description 1
- 229940019931 silver phosphate Drugs 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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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
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- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
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- 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
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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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
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- H01J37/32—Gas-filled discharge tubes
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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
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32348—Dielectric barrier discharge
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- 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
- H01J37/32366—Localised processing
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- 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
- H01J37/3244—Gas supply means
- H01J37/32449—Gas control, e.g. control of the gas flow
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- 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
- H01J37/32541—Shape
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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
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Description
18mmの内径を有する環状電極130を誘電体110の下面に面接触して配置し、10mmの直径を有する円形電極120を誘電体110の上面に面接触して配置した。前記円形電極120には高電圧が印加されるように電源供給部140と連結し、前記環状電極130は接地として利用される。環状電極130の下には被処理基板160を位置させた。前記被処理基板160は、導電性基板としてSiC基板を位置させた。
Claims (14)
- プレート状の誘電体と、
前記誘電体の上面に面接触して配置される円形電極と、
前記誘電体の下面に面接触して配置され、気体を収容する気体収容空間を提供する環状電極と、
前記円形電極と環状電極との間に高電圧を印加する電源供給部と、を含み、
高電圧が印加されて放電が開始されると、前記環状電極の内側面と前記誘電体の下面との間で前記環状電極の中心方向に展開されるプラズマから被処理基板の方向にフィラメント状プラズマを照射する、環状沿面放電プラズマ装置を利用した点状エッチングモジュール。 - 前記円形電極は前記環状電極の内径より小さい直径を有することを特徴とする、請求項1に記載の環状沿面放電プラズマ装置を利用した点状エッチングモジュール。
- 前記円形電極の直径(Re)と前記環状電極の内径(Se)の比率は8:18以下であることを特徴とする、請求項1に記載の環状沿面放電プラズマ装置を利用した点状エッチングモジュール。
- 前記円形電極の直径(Re)と前記環状電極の内径(Se)との差は20mm以下であることを特徴とする、請求項1に記載の環状沿面放電プラズマ装置を利用した点状エッチングモジュール。
- 前記気体は放電開始のための放電ガスを含み、
前記放電ガスはHe、Ne、Ar及びXeからなる群から選択された少なくとも1つであることを特徴とする、請求項1に記載の環状沿面放電プラズマ装置を利用した点状エッチングモジュール。 - 前記気体は前記被処理基板のエッチングのためのエッチングガスを含み、
前記被処理基板はSiCであり、
前記エッチングガスはNF3またはSF6であることを特徴とする、請求項5に記載の環状沿面放電プラズマ装置を利用した点状エッチングモジュール。 - 前記エッチングガスは、前記気体収容空間に注入される気体の総体積に対して1%未満で注入されることを特徴とする、請求項6に記載の環状沿面放電プラズマ装置を利用した点状エッチングモジュール。
- 前記気体収容空間に前記気体を注入するための気体注入部を含むことを特徴とする、請求項1に記載の環状沿面放電プラズマ装置を利用した点状エッチングモジュール。
- 前記気体注入部は、前記環状電極の側面方向で前記気体収容空間に気体を注入するように構成されることを特徴とする、請求項8に記載の環状沿面放電プラズマ装置を利用した点状エッチングモジュール。
- 前記気体注入部は、前記環状電極の外面を囲むように設置される円筒状気体注入部材を含み、
前記環状電極の外面と円筒状気体注入部材の内面との間には、前記円筒状気体注入部材から注入された気体を前記気体収容空間に案内する気体ガイド通路が備えられることを特徴とする、請求項8に記載の環状沿面放電プラズマ装置を利用した点状エッチングモジュール。 - 前記被処理基板は導電性基板であり、
前記導電性基板をエッチングすることを特徴にする、請求項1に記載の環状沿面放電プラズマ装置を利用した点状エッチングモジュール。 - 請求項1の装置を利用し、
環状電極の気体収容空間に注入される気体の総体積に対して放電ガス及びエッチングガスの供給比率を変更する過程を含むことを特徴とする、エッチングプロファイルを制御する方法。 - 前記気体の総体積に対して前記エッチングガスの供給比率を高くして、狭くて深くエッチングすることを特徴とする、請求項12に記載のエッチングプロファイルを制御する方法。
- 前記気体の総体積に対して前記エッチングガスの供給比率を低くして、広くて薄くエッチングすることを特徴とする、請求項12に記載のエッチングプロファイルを制御する方法。
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KR1020180017914A KR102024568B1 (ko) | 2018-02-13 | 2018-02-13 | 환형 면방전 플라즈마 장치를 이용한 점상 식각 모듈 및 점상 식각 모듈의 식각 프로파일을 제어하는 방법 |
PCT/KR2019/001765 WO2019160329A1 (ko) | 2018-02-13 | 2019-02-13 | 환형 면방전 플라즈마 장치를 이용한 점상 식각 모듈 및 점상 식각 모듈의 식각 프로파일을 제어하는 방법 |
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JP2004006211A (ja) | 2001-09-27 | 2004-01-08 | Sekisui Chem Co Ltd | プラズマ処理装置 |
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US11776819B2 (en) | 2023-10-03 |
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US20200402810A1 (en) | 2020-12-24 |
CN111801784A (zh) | 2020-10-20 |
CN111801784B (zh) | 2024-04-02 |
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