JP2006512749A - 種々の照射パターンを有するシングルショット半導体処理システム及び方法 - Google Patents
種々の照射パターンを有するシングルショット半導体処理システム及び方法 Download PDFInfo
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Abstract
Description
本願は、2002年8月19日に出願された米国特許出願第60/404447号からの優先権を請求する。
本発明は、半導体処理方法に関し、より特には、薄膜トランジスタ(TFT)の製造に好適な形式において半導体材料を形成する方法に関する。
Claims (16)
- 半導体薄膜を再結晶化し、その結晶品質を改善する方法において、
(a)前記半導体薄膜の表面の第1範囲に放射ビームのパルスを照射するステップであって、前記放射ビームはビームレットのパターンにおける少なくとも1つのビームレットに最初にパターン化され、各々のビームレットは前記第1範囲における目標領域に入射し、各々のビームレットはこれが入射する前記表面領域における半導体材料を融解するのに十分なフルエンスを有し、前記目標領域における融解した前記半導体材料は、これが前記入射ビームレットにもはや露光されなくなった場合、再結晶化する、ステップと、
(b)前記半導体薄膜を前記放射ビームに対して連続的に平行移動させ、前記半導体薄膜の表面の次の範囲がステップ(a)と同じように照射されるようにするステップとを含むことを特徴とする方法。 - 請求項1に記載の方法において、前記ビームレットは、ミクロンのオーダの断面寸法を有することを特徴とする方法。
- 請求項1に記載の方法において、マスクを使用し、前記放射ビームパルスからのビームレットをパターン化するステップをさらに含むことを特徴とする方法。
- 請求項3に記載の方法において、前記マスクは、
入射する放射の通過を阻止する阻止部分と、
あるパターンにおける複数のスリットとを具え、前記スリットは入射する放射の通過を可能にし、前記スリットは前記パターンにおいて互いに実質的に平行に配置されることを特徴とする方法。 - 請求項3に記載の方法において、前記マスクは、
入射する放射の通過を阻止する阻止部分と、
あるパターンにおける複数のスリットとを具え、前記スリットは入射する放射の通過を可能にし、前記スリットは前記パターンにおいて長方形の辺に沿って対において配置されることを特徴とする方法。 - 請求項1に記載の方法において、前記半導体薄膜を可動ステージにおいて支持するステップをさらに含み、前記半導体薄膜を前記放射ビームに対して平行移動することは、前記可動ステージを前記次の範囲への直線経路に沿って移動することを含むことを特徴とする方法。
- 請求項6に記載の方法において、前記半導体薄膜は範囲の行を含み、前記可動ステージを前記半導体薄膜の表面における範囲の第1の行を通過する直線経路に沿って移動するステップをさらに含むことを特徴とする方法。
- 請求項7に記載の方法において、前記可動ステージは、前記範囲の行を通って連続的に絶え間なく移動されることを特徴とする方法。
- 請求項7に記載の方法において、前記可動ステージはある範囲において停止し、次に、隣接する範囲にステップされることを特徴とする方法。
- 請求項7に記載の範囲において、前記可動ステージを、範囲の連続する行を通る直線経路に沿って、前記半導体薄膜の表面全体が処理されるまで移動するステップをさらに含むことを特徴とする方法。
- 請求項1に記載の方法において、前記第1範囲における前記目標領域の少なくとも1つが、次の範囲における対応する目標領域と接触し、前記第1及び次の範囲の照射後、延長されたストリップすなわち再結晶化された半導体材料が形成されるようにすることを特徴とする方法。
- 半導体薄膜を再結晶化し、その結晶品質を改善する方法において、
(a)レーザを使用し、放射ビームのパルスを発生するステップと、
(b)前記半導体薄膜の表面の第1範囲に前記放射ビームのパルスを照射するステップであって、前記放射ビームはビームレットのパターンにおける少なくとも1つのビームレットに最初にパターン化され、各々のビームレットは前記第1範囲における目標領域に入射し、各々のビームレットはこれが入射する前記表面領域における半導体材料を融解するのに十分なフルエンスを有し、前記目標領域における融解した前記半導体材料は、これが前記入射ビームレットにもはや露光されなくなった場合、再結晶化する、ステップと、
(c)前記半導体薄膜の表面の第1範囲に前記放射ビームのパルスを照射した後、前記半導体薄膜を前記放射ビームに対して平行移動し、前記半導体薄膜の次の範囲が前記ステップ(a)及び(b)の方法において照射されるようにするステップとを含むことを特徴とする方法。 - 請求項12に記載の方法において、前記レーザは、前記薄膜半導体範囲の前記放射ビームに対する位置にしたがって前記放射ビームのパルスを発生するようにトリガされることを特徴とする方法。
- 請求項12に記載の方法において、前記半導体薄膜を可動ステージにおいて支持するステップをさらに含み、前記半導体薄膜を前記放射ビームに対して平行移動することは、前記可動ステージを移動することを含み、前記レーザは、前記可動ステージの位置にしたがって前記放射ビームのパルスを発生するようにトリガされることを特徴とする方法。
- 請求項14に記載の方法において、前記可動ステージの位置は位置センサによって感知されることを特徴とする方法。
- 請求項14に記載の方法において、前記可動ステージの位置は前記ステージの初期位置から計算されることを特徴とする方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40444702P | 2002-08-19 | 2002-08-19 | |
| PCT/US2003/025947 WO2004017380A2 (en) | 2002-08-19 | 2003-08-19 | A single-shot semiconductor processing system and method having various irradiation patterns |
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| Publication Number | Publication Date |
|---|---|
| JP2006512749A true JP2006512749A (ja) | 2006-04-13 |
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| JP2004529135A Pending JP2006512749A (ja) | 2002-08-19 | 2003-08-19 | 種々の照射パターンを有するシングルショット半導体処理システム及び方法 |
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| Country | Link |
|---|---|
| US (5) | US7718517B2 (ja) |
| JP (1) | JP2006512749A (ja) |
| KR (1) | KR20050047103A (ja) |
| CN (1) | CN1757093A (ja) |
| AU (1) | AU2003258289A1 (ja) |
| TW (1) | TWI331803B (ja) |
| WO (1) | WO2004017380A2 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009246349A (ja) * | 2008-03-11 | 2009-10-22 | Semiconductor Energy Lab Co Ltd | 半導体基板の製造方法 |
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| EP1259985A2 (en) | 2000-10-10 | 2002-11-27 | The Trustees Of Columbia University In The City Of New York | Method and apparatus for processing thin metal layers |
| US6961117B2 (en) | 2000-11-27 | 2005-11-01 | The Trustees Of Columbia University In The City Of New York | Process and mask projection system for laser crystallization processing of semiconductor film regions on a substrate |
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| AU2003220611A1 (en) | 2002-04-01 | 2003-10-20 | The Trustees Of Columbia University In The City Of New York | Method and system for providing a thin film |
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- 2003-08-19 CN CNA038190478A patent/CN1757093A/zh active Pending
- 2003-08-19 US US10/524,809 patent/US7718517B2/en not_active Expired - Fee Related
- 2003-08-19 WO PCT/US2003/025947 patent/WO2004017380A2/en active Application Filing
- 2003-08-19 AU AU2003258289A patent/AU2003258289A1/en not_active Abandoned
- 2003-08-19 KR KR1020057002870A patent/KR20050047103A/ko not_active Ceased
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| WO2004017380A2 (en) | 2004-02-26 |
| US8507368B2 (en) | 2013-08-13 |
| US20110186854A1 (en) | 2011-08-04 |
| US20100197147A1 (en) | 2010-08-05 |
| US20130316548A1 (en) | 2013-11-28 |
| US20060040512A1 (en) | 2006-02-23 |
| US8479681B2 (en) | 2013-07-09 |
| US8883656B2 (en) | 2014-11-11 |
| KR20050047103A (ko) | 2005-05-19 |
| TWI331803B (en) | 2010-10-11 |
| US7906414B2 (en) | 2011-03-15 |
| CN1757093A (zh) | 2006-04-05 |
| WO2004017380A3 (en) | 2005-12-15 |
| AU2003258289A1 (en) | 2004-03-03 |
| US7718517B2 (en) | 2010-05-18 |
| TW200405575A (en) | 2004-04-01 |
| US20130071974A1 (en) | 2013-03-21 |
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