JP6246749B2 - ウエットエッチング方法、基板液処理装置および記憶媒体 - Google Patents
ウエットエッチング方法、基板液処理装置および記憶媒体 Download PDFInfo
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- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32134—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by liquid etching only
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- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
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- 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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- 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
- H01L21/67075—Apparatus for fluid treatment for etching for wet etching
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- 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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Description
次に、上記基板処理システム1を用いて実行されるウエットエッチング方法の第1実施形態について説明する。まず、ウエットエッチング方法の第1実施形態の実施に適合させた処理ユニット16(16A)の構成について、図3を参照して説明する。
次に、上記基板処理システム1を用いて実行されるウエットエッチング方法の第2実施形態について説明する。この第2実施形態では、上述した第1実施形態で用いた処理ユニット16Aに加えて処理ユニット16Bが用いられる。具体的には、例えば、基板処理システム1の処理ユニット16のうちの半数を処理ユニット16Aとし、残りの半数を処理ユニット16Bとすることができる。
WE 基板の端縁
P3 第1半径方向位置
4 制御装置
30 基板保持機構
41 薬液ノズル
43 エッチング阻害液ノズル
Claims (8)
- 第1面と、前記第1面の裏側の第2面とを有し、少なくとも前記第1面の周縁部分に、下層としての第1層と上層としての第2層とが積層されている基板をウエットエッチングする方法であって、
前記基板を回転させることと、
回転している前記基板の前記第1面に、前記第1層および前記第2層の両方をエッチングし得る薬液を供給することと、
前記基板に前記薬液を供給しているときに、前記基板の前記第2面にエッチング阻害液を供給することと、を有する第1エッチング工程を備え、
前記第1エッチング工程は、前記エッチング阻害液が前記基板の端縁を通って前記第1面に回り込み、前記第1面の周縁部分のうちの前記基板の前記端縁から、前記第1面上において前記端縁よりも半径方向内側にある第1半径方向位置に至るまでの第1領域に到達するように、前記基板を回転させて前記エッチング阻害液を供給することを特徴とする、ウエットエッチング方法。 - 前記基板の前記第2面に前記エッチング阻害液を供給することは、予め定められた時間だけ前記基板の前記第1面に前記薬液を供給した後に、あるいは、前記薬液により予め定められた量だけ前記第2層がエッチングされた後に開始される、請求項1記載のウエットエッチング方法。
- 前記エッチング阻害液は、前記第1層が除去された結果として露出した前記第2層の前記薬液によるエッチングを防止または抑制する、請求項2記載のウエットエッチング方法。
- 前記ウエットエッチング方法は、第2エッチング工程をさらに備え、
前記第1エッチング工程では、前記第1領域に、前記エッチング阻害液を到達させた状態で、前記第1面の周縁部分のうちの前記第1領域よりも半径方向内側にある第2領域にある前記第2層のエッチングが行われるよう前記薬液を供給し、
前記第2エッチング工程は、前記薬液が前記基板の端縁を通って前記第1面に回り込むように前記薬液を前記基板の第2面に供給することを含み、これにより、前記第2面上の前記第2層および前記第1面の前記第1領域にある前記第2層を同時にエッチングする、請求項1記載のウエットエッチング方法。 - 前記エッチング阻害液の液膜により前記基板の表面がカバーされることにより、あるいは、前記薬液が前記エッチング阻害液により希釈されることにより、前記薬液によるエッチングが防止または抑制される、請求項1から4のうちのいずれか一項に記載のウエットエッチング方法。
- 前記エッチング阻害液は純水である、請求項5記載のウエットエッチング方法。
- 基板液処理装置の動作を制御するためのコンピュータにより実行されたときに、前記コンピュータが前記基板液処理装置を制御して請求項1から6のうちのいずれか一項に記載のウエットエッチング方法を実行させるプログラムが記録された記憶媒体。
- 第1面と、前記第1面の裏側の第2面とを有し、少なくとも前記第1面の周縁部分に、下層としての第1層と上層としての第2層とが積層されている基板をウエットエッチングする基板液処理装置において、
前記基板を水平姿勢で保持して鉛直軸線周りに回転させる基板保持機構と、
前記基板の前記第1面の周縁部分に前記第1層および前記第2層の両方をエッチングし得る薬液を供給する薬液ノズルと、
前記基板の前記第2面にエッチング阻害液を供給するエッチング阻害液ノズルと、
前記基板保持機構による前記基板の回転および前記エッチング阻害液ノズルから供給される前記エッチング阻害液の流量を少なくとも制御する制御装置と、
を備え、
前記制御装置は、前記薬液ノズルが前記基板の前記第1面の周縁部分に前記薬液を供給しているときに、前記エッチング阻害液ノズルにより前記基板の前記第2面に前記エッチング阻害液を供給して、この供給したエッチング阻害液を前記基板の端縁を介して前記第1面に回り込ませ、前記第1面の周縁部分のうちの前記基板の前記端縁から、前記第1面上において前記端縁よりも半径方向内側にある第1半径方向位置に至るまでの第1領域に到達させる基板液処理装置。
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JP2015014764A JP6246749B2 (ja) | 2015-01-28 | 2015-01-28 | ウエットエッチング方法、基板液処理装置および記憶媒体 |
TW105102234A TWI637436B (zh) | 2015-01-28 | 2016-01-25 | Wet etching method, substrate liquid processing device and memory medium |
US15/545,347 US10431448B2 (en) | 2015-01-28 | 2016-01-25 | Wet etching method, substrate liquid processing apparatus, and storage medium |
PCT/JP2016/052042 WO2016121704A1 (ja) | 2015-01-28 | 2016-01-25 | ウエットエッチング方法、基板液処理装置および記憶媒体 |
KR1020177020992A KR102541745B1 (ko) | 2015-01-28 | 2016-01-25 | 습식 에칭 방법, 기판 액처리 장치 및 기억 매체 |
CN201680006816.2A CN107210216B (zh) | 2015-01-28 | 2016-01-25 | 湿蚀刻方法、基板液处理装置以及存储介质 |
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JP6545539B2 (ja) * | 2015-06-18 | 2019-07-17 | 株式会社Screenホールディングス | 基板処理装置 |
WO2018159193A1 (ja) * | 2017-02-28 | 2018-09-07 | 株式会社Screenホールディングス | 基板処理装置および基板処理方法 |
JP6842391B2 (ja) | 2017-09-07 | 2021-03-17 | キオクシア株式会社 | 半導体製造装置および半導体装置の製造方法 |
JP6986397B2 (ja) * | 2017-09-14 | 2021-12-22 | 東京エレクトロン株式会社 | 基板処理装置、基板処理方法および記憶媒体 |
CN108133906A (zh) * | 2017-12-27 | 2018-06-08 | 德淮半导体有限公司 | 晶片处理设备及晶片处理方法 |
JP7085392B2 (ja) * | 2018-04-11 | 2022-06-16 | 東京エレクトロン株式会社 | 基板処理装置、基板処理方法及びコンピュータ読み取り可能な記録媒体 |
JP6985987B2 (ja) * | 2018-06-15 | 2021-12-22 | 株式会社Screenホールディングス | 基板処理方法および基板処理装置 |
US20210280429A1 (en) * | 2018-07-26 | 2021-09-09 | Tokyo Electron Limited | Substrate processing system and substrate processing method |
JP7250566B2 (ja) * | 2019-02-26 | 2023-04-03 | 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 |
JPWO2020202975A1 (ja) * | 2019-03-29 | 2021-12-16 | 東京エレクトロン株式会社 | レーザー加工装置、およびレーザー加工方法 |
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JP7309485B2 (ja) * | 2019-07-04 | 2023-07-18 | 東京エレクトロン株式会社 | エッチング装置およびエッチング方法 |
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