JPWO2019009054A1 - 基板処理システム、基板洗浄方法および記憶媒体 - Google Patents
基板処理システム、基板洗浄方法および記憶媒体 Download PDFInfo
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- JPWO2019009054A1 JPWO2019009054A1 JP2019527611A JP2019527611A JPWO2019009054A1 JP WO2019009054 A1 JPWO2019009054 A1 JP WO2019009054A1 JP 2019527611 A JP2019527611 A JP 2019527611A JP 2019527611 A JP2019527611 A JP 2019527611A JP WO2019009054 A1 JPWO2019009054 A1 JP WO2019009054A1
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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
- H01L21/02—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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Abstract
Description
まず、本実施形態に係る基板洗浄方法の内容について図1A〜図1Eを用いて説明する。図1A〜図1Eは、本実施形態に係る基板洗浄方法の説明図である。
以下、各成分について説明する。
[A]溶媒は、[B]フェノール樹脂を溶解する成分である。[C]有機酸を添加する場合、[C]有機酸を溶解するものであることが好ましい。
[B]フェノール樹脂としては、例えば、ノボラック型フェノール樹脂、レゾールフェノール樹脂等が挙げられる。これらの中で、ノボラック型フェノール樹脂(以下、ノボラック樹脂と記載する)が好ましい。ノボラック樹脂としては、例えば、フェノールノボラック樹脂、クレゾールノボラック樹脂、ビスフェノールAノボラック樹脂等が挙げられる。
成膜処理液は、さらに[C]有機酸を含むことができる。[C]有機酸を加えることにより、基板表面に形成された処理膜の除去がより容易となる。[C]有機酸の分子量の上限としては、例えば、500であり、400が好ましく、300がより好ましい。[C]有機酸の分子量の下限としては、例えば、50であり、55が好ましい。
成膜処理液中の全固形分に対する[C]有機酸の含有量の下限としては、0.5質量%が好ましく、1質量%がより好ましく、3質量%がさらに好ましい。上記含有量の上限としては、30質量%が好ましく、20質量%がより好ましく、5質量%がさらに好ましい。
[C]有機酸の含有量を上記下限と上記上限との間とすることで、処理膜の除去をより容易とすることができる。具体的には、[C]有機酸の含有量を0.1質量%以上とすることで、処理膜中への剥離処理液の浸透性を高めることができ、処理膜をより「膜」の状態のままウェハWから剥離させることができる。つまり、剥離力を向上させることができる。また、[C]有機酸の含有量を5質量%以下とすることで、処理膜の強度が低下することによる剥離力の低下を抑えることができる。
成膜処理液は、上記[A]〜[C]成分以外の任意成分を含有していてもよい。任意成分としては、例えば、界面活性剤等が挙げられる。
上記界面活性剤の含有量としては、通常、2質量%以下であり、1質量%以下が好ましい。
次に、本実施形態に係る基板洗浄システムの構成について図2を用いて説明する。図2は、本実施形態に係る基板洗浄システムの構成を示す模式図である。なお、以下においては、位置関係を明確にするために、互いに直交するX軸、Y軸およびZ軸を規定し、Z軸正方向を鉛直上向き方向とする。
次に、基板洗浄装置14の構成について図3、図4Aおよび図4Bを参照して説明する。図3は、本実施形態に係る基板洗浄装置14の構成を示す模式図である。また、図4Aは、第1液供給部に接続される処理液供給系の構成の一例を示す図であり、図4Bは、第2液供給部に接続される処理液供給系の構成の一例を示す図である。
次に、基板洗浄装置14の具体的動作について図5を参照して説明する。図5は、本実施形態に係る基板洗浄システム1が実行する基板洗浄処理の処理手順を示すフローチャートである。基板洗浄システム1が備える各装置は、制御部15の制御に従って図5に示す各処理手順を実行する。
上述してきた実施形態では、「成膜処理液供給部」と「除去液供給部」とが1つのチャンバ20内に設けられる場合の例を示したが、「成膜処理液供給部」と「除去液供給部」とは、それぞれ別々のチャンバ内に設けられてもよい。例えば、基板洗浄システム1は、図3に示す基板洗浄装置14から第2液供給部40_2を取り除いたチャンバ(第1チャンバ)と、図3に示す基板洗浄装置14から第1液供給部40_1を取り除いたチャンバ(第2チャンバ)とを備えてもよい。
P パーティクル
1,1’ 基板洗浄システム
2 搬入出ステーション
3 処理ステーション
4 制御装置
14 基板洗浄装置
20 チャンバ
21 FFU
30 基板保持機構
40_1,40_2 液供給部
45a 酸系処理液供給源
45b アルカリ径処理液供給源
45c 前処理液供給源
45d A+B供給源
45e C供給源
45f DIW供給源
45g アルカリ水溶液供給源
45h 有機溶剤供給源
45i DIW供給源
45j IPA供給源
Claims (10)
- 有機溶媒に可溶なフェノール樹脂を含有する処理膜が形成された基板を保持する保持部と、
前記処理膜を前記基板から剥離させる剥離処理液を前記処理膜に対して供給する剥離処理液供給部と、
前記処理膜を溶解させる溶解処理液を前記処理膜に対して供給する溶解処理液供給部と
を備える、基板処理システム。 - 前記処理膜は、前記フェノール樹脂としてノボラック樹脂を含有する、請求項1に記載の基板処理システム。
- 前記基板に対して前記フェノール樹脂と前記有機溶媒とを含有する成膜処理液を供給する成膜処理液供給部
を備え、
前記基板上に、前記供給された成膜処理液が固化または硬化することにより前記処理膜が形成される、請求項1または2に記載の基板処理システム。 - 前記成膜処理液は、低分子有機酸をさらに含有する、請求項3に記載の基板処理システム。
- 前記成膜処理液における前記低分子有機酸の濃度は、
0.1質量%以上5質量%以下である、請求項4に記載の基板処理システム。 - 前記保持部、前記成膜処理液供給部、前記剥離処理液供給部および前記溶解処理液供給部を収容するチャンバと、
前記チャンバ内に配置され、前記チャンバ内における前記基板以外の場所に対して洗浄液を供給する洗浄液供給部と
を備え、
前記洗浄液供給部は、
前記チャンバ内における前記基板以外の場所に対し、前記剥離処理液と前記溶解処理液との混合液を供給した後で前記剥離処理液を供給する、請求項3〜5のいずれか一つに記載の基板処理システム。 - 前記剥離処理液は、純水である、請求項1〜5のいずれか一つに記載の基板処理システム。
- 前記溶解処理液は、有機溶剤である、請求項1〜5のいずれか一つに記載の基板処理システム。
- 有機溶媒に可溶なフェノール樹脂を含有する処理膜を基板上に形成する処理膜形成工程と、
前記基板上の処理膜に対して前記処理膜を除去する除去液を供給する除去液供給工程と
を含む、基板洗浄方法。 - コンピュータ上で動作し、基板処理システムを制御するプログラムが記憶されたコンピュータ読取可能な記憶媒体であって、
前記プログラムは、実行時に、請求項9に記載の基板洗浄方法が行われるように、コンピュータに前記基板処理システムを制御させる、記憶媒体。
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