JP4774367B2 - 石英半導体製造基板の表面を処理する方法 - Google Patents
石英半導体製造基板の表面を処理する方法 Download PDFInfo
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- JP4774367B2 JP4774367B2 JP2006521240A JP2006521240A JP4774367B2 JP 4774367 B2 JP4774367 B2 JP 4774367B2 JP 2006521240 A JP2006521240 A JP 2006521240A JP 2006521240 A JP2006521240 A JP 2006521240A JP 4774367 B2 JP4774367 B2 JP 4774367B2
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
- C23C16/4404—Coatings or surface treatment on the inside of the reaction chamber or on parts thereof
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
- C23C16/4407—Cleaning of reactor or reactor parts by using wet or mechanical methods
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- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Surface Treatment Of Glass (AREA)
- Glass Melting And Manufacturing (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Drying Of Semiconductors (AREA)
Description
「マイクロ粗面化」又は「マイクロ粗面度」とは、表面の平均位置の上下の短距離偏差の二乗平均を意味するもので、当該表面の構造体の異なる空間的周波数または異なるサイズでマイクロ粗面度が分布される仕方を含む。これは、分離された表面欠陥及びダスト粒子のような汚染物から区別されるべきものである。
本発明は、1つの態様において、基板の表面をクリーニングし、マイクロ粗面化し、またはその他処理する方法を提供する。以下に詳細に述べる方法は、従来技術に勝る多数の効果を有するマイクロ粗面化された基板表面を形成できることが分かった。基板は、表面の下にあまりクラックをもたず、これは、表面に累積したダストや他の汚染物のような粒状物体の薄片化または脱落を減少する。更に、表面の形状及び粗面度は、半導体処理の工程中にこのような粒状物体を収集するための改良された接着特性を与える。更に、表面積が増加され、これは、基板への汚染物層の静止摩擦を高める。
Claims (14)
- 石英半導体製造基板の表面を処理する方法において、
初期作用面粗面度を有する作用面を与えるように石英半導体製造基板を準備するステップと、
前記作用面を超音波で酸性エッチングして、前記作用面の粗面度を少なくとも10%高めるステップと、
前記作用面を超音波で酸性エッチングした後に、メッシュサイズが100より大きい微粒で前記作用面を粒吹き付けするステップと、
を備えた方法。 - 石英半導体製造基板を準備する上記ステップは、前記初期作用面粗面度が10Raより大きい石英半導体製造基板を得ることを含む、請求項1に記載の石英半導体製造基板の表面を処理する方法。
- 石英半導体製造基板を準備する上記ステップは、前記初期作用面粗面度が16Raの石英半導体製造基板を得ることを含む、請求項2に記載の石英半導体製造基板の表面を処理する方法。
- 石英半導体製造基板を準備する上記ステップは、メッシュサイズが100以下の粒を前記作用面に粗く粒吹き付けすることにより、前記初期作用面を100Raより大きな粗面度へ粗面化することを含む、請求項2に記載の石英半導体製造基板の表面を処理する方法。
- 前記粗面化は、前記初期作用面を、300Raより大きい粗面度へ粗面化する、請求項4に記載の石英半導体製造基板の表面を処理する方法。
- 上記超音波での酸性エッチングは、上記作用面の粗面度を少なくとも25%高める、請求項1に記載の石英半導体製造基板の表面を処理する方法。
- 上記超音波での酸性エッチングは、上記作用面の粗面度を少なくとも50%高める、請求項1に記載の石英半導体製造基板の表面を処理する方法。
- 前記微粒のメッシュサイズは200より大きい、請求項1に記載の石英半導体製造基板の表面を処理する方法。
- 前記酸性エッチングは第1の酸性エッチングであり、更に、前記作用面に微粒子吹き付けをした後に前記作用面に第2の酸性エッチングを行うステップを備えた、請求項1に記載の石英半導体製造基板の表面を処理する方法。
- 前記第1の酸性エッチングは、前記第2の酸性エッチングよりも前記作用面から実質的に多くの材料を除去する、請求項9に記載の石英半導体製造基板の表面を処理する方法。
- 石英半導体製造基板の表面を処理する方法において、
基板を超音波で酸性エッチングして、前記基板の作用面における1つ以上のクラックを実質的に除去するステップと、
前記作用面を超音波で酸性エッチングした後に、メッシュサイズが100より大きい微粒で前記作用面を粒吹き付けするステップと、
前記基板の表面に、前記基板を使用準備する最終的なクリーニングプロセスを受けさせるステップと、
を備えた方法。 - 前記超音波での酸性エッチングの前に前記作用面に粗粒吹き付けを行って、平均的な表面粗面度(Ra)が100から400Raの粗面化された表面を形成するステップを更に備えた、請求項11に記載の石英半導体製造基板の表面を処理する方法。
- 前記最終的なクリーニングプロセスは、
HF:HNO3:H2O及びHF:H2O2:HNO3より成る前記グループから選択された酸性溶液を前記基板に接触させる段階と、
前記基板を脱イオン水ですすぐ段階と、
超音波脱イオン水バスにおいて前記基板を超音波処理する段階と、
前記基板を窒素で乾燥して余分な水分を除去する段階と、
前記基板を加熱ランプの下またはオーブン内で加熱する段階と、
を含む請求項11に記載の石英半導体製造基板の表面を処理する方法。 - 前記最終的なクリーニングプロセスの前に前記基板の前記表面をマイクロ粗面化するステップを備え、これは、
(a)前記基板表面から所定の距離に且つ前記基板表面に対して60°未満の角度で加圧粒排出ノズルを位置させる段階と、
(b)前記ノズルから、マイクロ粗面化された表面を形成するに充分な速度で前記表面に対して粒を放出させる段階と、
により行う請求項11に記載の石英半導体製造基板の表面を処理する方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/627,185 US7045072B2 (en) | 2003-07-24 | 2003-07-24 | Cleaning process and apparatus for silicate materials |
| US10/627,185 | 2003-07-24 | ||
| PCT/US2004/023597 WO2005010948A2 (en) | 2003-07-24 | 2004-07-22 | Cleaning process and apparatus for silicate materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006528841A JP2006528841A (ja) | 2006-12-21 |
| JP4774367B2 true JP4774367B2 (ja) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2006521240A Expired - Fee Related JP4774367B2 (ja) | 2003-07-24 | 2004-07-22 | 石英半導体製造基板の表面を処理する方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US7045072B2 (ja) |
| JP (1) | JP4774367B2 (ja) |
| KR (1) | KR101145470B1 (ja) |
| CN (2) | CN101901743B (ja) |
| SG (1) | SG145688A1 (ja) |
| TW (1) | TWI251873B (ja) |
| WO (1) | WO2005010948A2 (ja) |
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- 2004-07-22 JP JP2006521240A patent/JP4774367B2/ja not_active Expired - Fee Related
- 2004-07-22 CN CN2004800276459A patent/CN1882714B/zh not_active Expired - Lifetime
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Also Published As
| Publication number | Publication date |
|---|---|
| US7045072B2 (en) | 2006-05-16 |
| KR20060114680A (ko) | 2006-11-07 |
| US7452475B2 (en) | 2008-11-18 |
| WO2005010948A2 (en) | 2005-02-03 |
| US20050016958A1 (en) | 2005-01-27 |
| WO2005010948A3 (en) | 2005-09-15 |
| CN1882714B (zh) | 2010-06-16 |
| TW200516656A (en) | 2005-05-16 |
| TWI251873B (en) | 2006-03-21 |
| KR101145470B1 (ko) | 2012-05-15 |
| US20050167393A1 (en) | 2005-08-04 |
| CN101901743B (zh) | 2012-09-19 |
| CN101901743A (zh) | 2010-12-01 |
| JP2006528841A (ja) | 2006-12-21 |
| CN1882714A (zh) | 2006-12-20 |
| SG145688A1 (en) | 2008-09-29 |
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