JP6911950B2 - 半導体ウェーハの洗浄装置および半導体ウェーハの洗浄方法 - Google Patents
半導体ウェーハの洗浄装置および半導体ウェーハの洗浄方法 Download PDFInfo
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- JP6911950B2 JP6911950B2 JP2020003047A JP2020003047A JP6911950B2 JP 6911950 B2 JP6911950 B2 JP 6911950B2 JP 2020003047 A JP2020003047 A JP 2020003047A JP 2020003047 A JP2020003047 A JP 2020003047A JP 6911950 B2 JP6911950 B2 JP 6911950B2
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- 239000004065 semiconductor Substances 0.000 title claims description 112
- 238000004140 cleaning Methods 0.000 title claims description 97
- 238000000034 method Methods 0.000 title claims description 17
- 239000007788 liquid Substances 0.000 claims description 36
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 19
- 229910052710 silicon Inorganic materials 0.000 claims description 19
- 239000010703 silicon Substances 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 235000012431 wafers Nutrition 0.000 description 140
- 239000003595 mist Substances 0.000 description 34
- 238000004088 simulation Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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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
- H01L21/67—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
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
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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
- H01L21/67—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
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/6704—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H01L21/67051—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing using mainly spraying means, e.g. nozzles
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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
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02052—Wet cleaning only
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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
- H01L21/02041—Cleaning
- H01L21/02082—Cleaning product to be cleaned
- H01L21/0209—Cleaning of wafer backside
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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
- H01L21/04—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
- 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
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
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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
- H01L21/67—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
- H01L21/687—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 mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
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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
- H01L21/67—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
- H01L21/687—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 mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/6875—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a plurality of individual support members, e.g. support posts or protrusions
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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
- H01L21/67—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
- H01L21/687—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 mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68764—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a movable susceptor, stage or support, others than those only rotating on their own vertical axis, e.g. susceptors on a rotating caroussel
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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
- H01L21/67—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
- H01L21/687—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 mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68785—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by the mechanical construction of the susceptor, stage or support
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Description
該チャンバ内の上部に設けられ、下方に向かって気体を供給する給気部と、
前記開口部の下方から前記チャンバ内に挿入されている回転テーブルと、
該回転テーブルの上面に設けられ、洗浄対象の半導体ウェーハを保持するウェーハ保持部と、
前記半導体ウェーハの上面に向かって洗浄液を供給する上部ノズルと、
前記半導体ウェーハの下面に向かって洗浄液を供給する下部ノズルと、
前記回転テーブルの外周部に設けられ、前記回転テーブルの外周方向に飛散する前記洗浄液を回収するスピンカップと、
を備え、
前記スピンカップは、
環状の側壁部と、
下端部が前記側壁部の上端部に接続されており、鉛直方向に対して前記回転テーブル側に傾斜している環状の傾斜部と、
上端部が前記傾斜部の上端部に接続されている環状の返し部と、
を有し、
前記側壁部の上端部の高さ位置が、前記ウェーハ保持部の上端部の高さ位置よりも低い位置に配置されており、
前記傾斜部の水平面に対する傾斜角度をθ、前記傾斜部の径方向の幅をwとして、前記傾斜角度θおよび前記幅wが下記の式(A)を満たすように構成されていることを特徴とする半導体ウェーハの洗浄装置。
θ≧−0.65×w+72.9° (A)
F(m3/min)≧6.9×10-3×R(rpm) (B)
以下、図面を参照して、本発明の実施形態について説明する。図1は、本発明による半導体ウェーハの洗浄装置の一例を示している。図1に示した洗浄装置1は、下部11bに開口部11cを有するチャンバ11と、該チャンバ11内の上部11aに設けられ、下方に向かって気体を供給する給気部12と、開口部11cの下方からチャンバ11内に挿入されている略円筒状の回転テーブル13と、該回転テーブル13の上面13aに設けられ、洗浄対象の半導体ウェーハWを保持するウェーハ保持部14と、半導体ウェーハWの上面に向かって洗浄液Lを供給する上部ノズル15と、半導体ウェーハWの下面に向かって洗浄液Lを供給する下部ノズル16と、回転テーブル13の外周部に設けられ、回転テーブル13の外周方向に飛散する洗浄液Lを回収するスピンカップ20とを備える。
(b)傾斜部22の水平面に対する傾斜角度θ22が、排出経路17における主流Mの向き、すなわち主流Mが水平面に対する傾斜角度θM以上であること。
θ22≧−0.65×w+72.9° (A)
本発明による半導体ウェーハの洗浄方法は、上述した本発明による半導体ウェーハの洗浄装置を用いて、洗浄対象の半導体ウェーハWをウェーハ保持部14上に載置し、給気部11から気体を供給するとともに上部ノズル15および下部ノズル16から洗浄液Lを噴射しつつ回転テーブル13を回転させて半導体ウェーハWを回転させ、気体をスピンカップ20と回転テーブル13との間の排気経路から排気しながら半導体ウェーハWの表裏面を洗浄することを特徴とする。
F(m3/min)≧6.9×10-3×R(rpm) (B)
図1に示した本発明による半導体ウェーハの洗浄装置1を用いて、シリコンウェーハの洗浄を行った。その際、スピンカップ20の構造は、図2において、傾斜部22の幅を60mm、返し部23の下端部23dからウェーハ保持部14の上端部14aまでの距離を15mm、傾斜部22の傾斜角度θ22を40°とした。また、側壁部21(上端部21c)の高さ位置h21をウェーハ保持部14の上端部14aに対して低い位置とした。
発明例と同様に、シリコンウェーハの洗浄を行った。ただし、スピンカップの構造は、図2において、傾斜部22の傾斜角度θ22を20°とした。その他の条件は、発明例と全て同じである。
10 チャンバ
11a チャンバの上部
11b チャンバの下部
11c 開口部
12 給気部
13 回転テーブル
14 ウェーハ保持部
15 上部ノズル
16 下部ノズル
17 排気経路
20 スピンカップ
20a スピンカップの上端部
21 側壁部
21a,22a,23a 内面
21b,22b,23b 外面
21c,22c,23c 上端部
21d,22d,23d 下端部
22 傾斜部
23 返し部
M 主流
S 渦流
W 半導体ウェーハ
Claims (7)
- 下部に開口部を有するチャンバと、
該チャンバ内の上部に設けられ、下方に向かって気体を供給する給気部と、
前記開口部の下方から前記チャンバ内に挿入されている回転テーブルと、
該回転テーブルの上面に設けられ、洗浄対象の半導体ウェーハを保持するウェーハ保持部と、
前記半導体ウェーハの上面に向かって洗浄液を供給する上部ノズルと、
前記半導体ウェーハの下面に向かって洗浄液を供給する下部ノズルと、
前記回転テーブルの外周部に設けられ、前記回転テーブルの外周方向に飛散する前記洗浄液を回収するスピンカップと、
を備え、
前記スピンカップは、
環状の側壁部と、
下端部が前記側壁部の上端部に接続されており、鉛直方向に対して前記回転テーブル側に傾斜している環状の傾斜部と、
上端部が前記傾斜部の上端部に接続されている環状の返し部と、
を有し、
前記側壁部の上端部の高さ位置が、前記ウェーハ保持部の上端部の高さ位置よりも低い位置に配置されており、
前記傾斜部の水平面に対する傾斜角度をθ、前記側壁部の内面と前記返し部の内面との間の距離である前記傾斜部の径方向の幅をw(mm)として、前記傾斜角度θおよび前記幅wが下記の式(A)を満たすように構成されていることを特徴とする半導体ウェーハの洗浄装置。
θ≧−0.65×w+72.9° (A) - 前記幅wは、20mm以上90mm以下である、請求項1に記載の半導体ウェーハの洗浄装置。
- 前記返し部の下端部の高さ位置と前記ウェーハ保持部の上端部の高さ位置との差hが0mm以上30mm以下である、請求項1または2に記載の半導体ウェーハの洗浄装置。
- 前記返し部の下端部が前記側壁部側に傾斜している、請求項1〜3のいずれか一項に記載の半導体ウェーハの洗浄装置。
- 請求項1〜4のいずれか一項に記載の半導体ウェーハの洗浄装置を用いて、洗浄対象の半導体ウェーハを前記ウェーハ保持部の上に載置し、前記給気部から気体を供給するとともに前記上部ノズルから前記半導体ウェーハの上面に洗浄液を噴射し、かつ前記下部ノズルから前記半導体ウェーハの下面に洗浄液を噴射しつつ前記回転テーブルを回転させて前記半導体ウェーハを回転させ、前記気体を前記スピンカップと前記回転テーブルとの隙間から排気しながら前記半導体ウェーハの表裏面を洗浄することを特徴とする半導体ウェーハの洗浄方法。
- 前記半導体ウェーハの洗浄は、前記給気部から供給される前記気体の流量をF、前記回転テーブルの回転数をRとして、前記気体の流量Fおよび前記回転数Rが下記の式(B)を満たす条件の下で行う、請求項5に記載の半導体ウェーハの洗浄方法。
F(m3/min)≧6.9×10−3×R(rpm) (B) - 前記洗浄対象の半導体ウェーハがシリコンウェーハである、請求項5または6に記載の半導体ウェーハの洗浄方法。
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JP2020003047A JP6911950B2 (ja) | 2020-01-10 | 2020-01-10 | 半導体ウェーハの洗浄装置および半導体ウェーハの洗浄方法 |
KR1020227023509A KR102585111B1 (ko) | 2020-01-10 | 2020-08-17 | 반도체 웨이퍼의 세정 장치 및 반도체 웨이퍼의 세정 방법 |
CN202080092346.2A CN114902379A (zh) | 2020-01-10 | 2020-08-17 | 半导体晶片的清洗装置以及半导体晶片的清洗方法 |
US17/791,769 US20230033913A1 (en) | 2020-01-10 | 2020-08-17 | Cleaning apparatus for semiconductor wafer and method of cleaning semiconductor wafer |
PCT/JP2020/031026 WO2021140697A1 (ja) | 2020-01-10 | 2020-08-17 | 半導体ウェーハの洗浄装置および半導体ウェーハの洗浄方法 |
TW109128375A TWI767302B (zh) | 2020-01-10 | 2020-08-20 | 半導體晶圓的洗淨裝置及半導體晶圓的洗淨方法 |
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JP (1) | JP6911950B2 (ja) |
KR (1) | KR102585111B1 (ja) |
CN (1) | CN114902379A (ja) |
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US5685039A (en) * | 1995-05-12 | 1997-11-11 | Tokyo Electron Limited | Cleaning apparatus |
JPH09148231A (ja) * | 1995-11-16 | 1997-06-06 | Dainippon Screen Mfg Co Ltd | 回転式基板処理装置 |
JP2000254857A (ja) * | 1999-01-06 | 2000-09-19 | Tokyo Seimitsu Co Ltd | 平面加工装置及び平面加工方法 |
JP5312856B2 (ja) * | 2008-06-27 | 2013-10-09 | 大日本スクリーン製造株式会社 | 基板処理装置 |
JP5807949B2 (ja) * | 2010-11-12 | 2015-11-10 | 国立大学法人東北大学 | 超高速ウェットエッチング装置 |
JP6017262B2 (ja) * | 2012-10-25 | 2016-10-26 | 東京エレクトロン株式会社 | 基板処理装置および基板処理方法 |
JP5951444B2 (ja) * | 2012-10-25 | 2016-07-13 | 東京エレクトロン株式会社 | 基板処理装置および基板処理方法 |
CN209804606U (zh) * | 2019-04-25 | 2019-12-17 | 东京毅力科创株式会社 | 基板处理装置 |
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