JP2012508985A - 薄膜の結晶化のためのシステムおよび方法 - Google Patents
薄膜の結晶化のためのシステムおよび方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 107
- 238000002425 crystallisation Methods 0.000 title claims abstract description 45
- 230000008025 crystallization Effects 0.000 title claims abstract description 35
- 239000010409 thin film Substances 0.000 title abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 230000001678 irradiating effect Effects 0.000 claims abstract description 10
- 239000013078 crystal Substances 0.000 claims description 30
- 239000012528 membrane Substances 0.000 claims description 24
- 238000013519 translation Methods 0.000 claims description 17
- 238000005499 laser crystallization Methods 0.000 claims description 12
- 238000007711 solidification Methods 0.000 claims description 10
- 230000008023 solidification Effects 0.000 claims description 10
- 238000005224 laser annealing Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 239000010408 film Substances 0.000 abstract description 89
- 239000000758 substrate Substances 0.000 abstract description 30
- 230000008569 process Effects 0.000 description 35
- 230000008018 melting Effects 0.000 description 19
- 238000002844 melting Methods 0.000 description 19
- 230000000737 periodic effect Effects 0.000 description 13
- 239000000463 material Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000005286 illumination Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 230000006911 nucleation Effects 0.000 description 4
- 238000010899 nucleation Methods 0.000 description 4
- 229920001621 AMOLED Polymers 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 239000012297 crystallization seed Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 239000013526 supercooled liquid Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- 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
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02656—Special treatments
- H01L21/02664—Aftertreatments
- H01L21/02667—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth
- H01L21/02675—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth using laser beams
- H01L21/02686—Pulsed laser beam
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02656—Special treatments
- H01L21/02664—Aftertreatments
- H01L21/02667—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth
- H01L21/02675—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth using laser beams
- H01L21/02678—Beam shaping, e.g. using a mask
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- 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
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
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- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
- H01L27/127—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement
- H01L27/1274—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement using crystallisation of amorphous semiconductor or recrystallisation of crystalline semiconductor
- H01L27/1285—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement using crystallisation of amorphous semiconductor or recrystallisation of crystalline semiconductor using control of the annealing or irradiation parameters, e.g. using different scanning direction or intensity for different transistors
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
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Abstract
Description
本出願は、35U.S.C.§119(e)に基づき、2008年11月14日出願の米国出願整理番号第61/114,766号、表題「Systems and Methods for the Crystallization of Thin Films」の優先権を主張し、参照することによりその全体が本明細書に組み込まれる。
Claims (36)
- 膜を処理する方法であって、前記方法は、
x軸およびy軸を有する膜に、第1の走査において、前記膜の前記x方向に、複数の線状ビームレーザーパルスを継続的に照射して、第1のセットの照射領域を形成することと、
前記膜を、前記膜の前記y方向に、ある距離平行移動することであって、前記距離が前記線状ビームの長さ未満である、平行移動することと、
第2の走査において、前記膜の負のx方向に一連の線状ビームレーザーパルスを前記膜に継続的に照射して、第2のセットの照射領域を形成することと、
を含み、前記第2のセットの照射領域のそれぞれが、前記第1のセットの照射領域の一部分と重複し、前記第1のセットおよび前記第2のセットの照射領域のそれぞれが、冷却時、1つ以上の結晶化領域を形成する、方法。 - 各線状ビームレーザーパルスは、前記第1のセットおよび前記第2のセットの照射領域において、その厚さ全体にわたり前記膜を融解するのに十分なフルエンスを有し、前記第1のセットの照射領域のそれぞれが、相互に離間する、請求項1に記載の方法。
- 前記第1のセットの照射領域のそれぞれが、冷却時に1つ以上の横方向に成長した結晶を形成し、前記第2のセットの照射領域のそれぞれが、前記第1のセットの照射領域の前記1つ以上の横方向に成長した結晶に対して延在する、1つ以上の横方向に成長した結晶を、冷却時に形成する、請求項2に記載の方法。
- 用いられる前記レーザー結晶化方法が、連続横方向固化である、請求項1に記載の方法。
- 前記第1のセットの照射領域のそれぞれが、相互に重複する、請求項1に記載の方法。
- 前記第1の走査における前記レーザービームパルスの数が、前記膜の結晶化を完了するのに必要とされる量未満である、請求項1に記載の方法。
- 前記第2の走査における前記レーザービームパルスの数が、前記膜の結晶化を完了するのに必要とされる量である、請求項1に記載の方法。
- 用いられる前記レーザー結晶化方法がエキシマレーザーアニーリングである、請求項1に記載の方法。
- 前記結晶化方法が、単位面積当たり約10〜約100パルスを使用する、請求項8に記載の方法。
- 前記結晶化方法が、単位面積当たり約10〜約40パルスを使用する、請求項8に記載の方法。
- 各走査内の照射領域間の前記重複が80%未満である、請求項8に記載の方法。
- 各走査内の照射領域間の前記重複が90%未満である、請求項8に記載の方法。
- 前記方法が、少なくとも2回の連続走査を含む、請求項1に記載の方法。
- 前記方法が、2〜8回の連続走査を含む、請求項1に記載の方法。
- 前記y方向の平行移動距離が、約10μm〜約10mmである、請求項1に記載の方法。
- 前記y方向の平行移動距離が、約100μm〜約2mmである、請求項1に記載の方法。
- 走査と走査との間で、前記膜を約180度回転することを含む、請求項1に記載の方法。
- 膜を処理するためのシステムであって、
前記膜のパルスレーザー結晶化のための複数のレーザービームパルスを生成するため少なくとも1つのレーザーであって、各レーザーパルスが、ある長さおよびある幅を有する、線状ビームを形成する、レーザーと、
少なくとも2つの方向に移動することが可能である、その上に配置されるx軸およびy軸を有する膜を位置付けるための、膜支持体と、
前記レーザービームパルスの周波数と連動して前記膜支持体の移動の制御に関する指示を提供するための、制御装置と、を備え、前記膜支持体の移動を制御することが、
第1の走査において、前記膜の前記x方向に配置された膜に複数の線状ビームレーザーパルスで継続的に照射して、第1のセットの照射領域を形成することと、
前記膜を、前記膜の前記y方向に、ある距離平行移動することであって、前記距離が前記線状ビームの長さ未満である、平行移動することと、
第2の走査において、前記膜の負のx方向に一連の線状ビームレーザーパルスを前記膜に継続的に照射して、第2のセットの照射領域を形成することと、
を含み、前記第2のセットの照射領域のそれぞれが、前記第1のセットの照射領域の一部分と重複し、前記第1のセットおよび第2のセットの照射領域のそれぞれが、冷却時、1つ以上の結晶化領域を形成する、システム。 - 各線状ビームレーザーパルスは、前記第1および第2のセットの照射領域において、その厚さ全体にわたって前記膜を融解するのに十分なフルエンスを有し、前記第1のセットの照射領域のそれぞれが、相互に離間する、請求項18に記載のシステム。
- 前記第1のセットの照射領域のそれぞれが、冷却時に1つ以上の横方向に成長した結晶を形成し、前記第2のセットの照射領域のそれぞれが、前記第1のセットの照射領域の前記1つ以上の横方向に成長した結晶に対して延在する、1つ以上の横方向に成長した結晶を冷却時に形成する、請求項19に記載のシステム。
- 用いられる前記レーザー結晶化方法が、連続横方向固化である、請求項19に記載のシステム。
- 前記第1のセットの照射領域のそれぞれが、相互に重複する、請求項18に記載のシステム。
- 前記第1の走査における前記レーザービームパルスの数が、前記膜の結晶化を完了するのに必要とされる量未満である、請求項18に記載のシステム。
- 前記第2の走査における前記レーザービームパルスの数が、前記膜の結晶化を完了するのに必要とされる量である、請求項18に記載のシステム。
- 用いられる前記レーザー結晶化方法が、エキシマレーザーアニーリングである、請求項18に記載のシステム。
- 前記結晶化方法が、単位面積当たり約10〜約100パルスを使用する、請求項25に記載のシステム。
- 前記結晶化方法が、単位面積当たり約10〜約40パルスを使用する、請求項25に記載のシステム。
- 各走査内の照射領域間の前記重複が80%未満である、請求項25に記載のシステム。
- 各走査内の照射領域間の前記重複が90%未満である、請求項25に記載のシステム。
- 前記方法が、少なくとも2回の連続走査を含む、請求項18に記載のシステム。
- 前記方法が、少なくとも2〜8回の連続走査を含む、請求項18に記載のシステム。
- 前記y平行移動距離が、約100μm〜約10mmである、請求項18に記載のシステム。
- 前記y平行移動距離が、約100μm〜約2mmである、請求項18に記載のシステム。
- 前記膜が、走査と走査との間で約180度回転される、請求項18に記載のシステム。
- 請求項1に記載の方法により処理される膜を含む、製品。
- 前記製品が、液晶表示画面である、請求項35に記載の製品。
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US11476608P | 2008-11-14 | 2008-11-14 | |
US61/114,766 | 2008-11-14 | ||
PCT/US2009/064381 WO2010056990A1 (en) | 2008-11-14 | 2009-11-13 | Systems and methods for the crystallization of thin films |
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KR (1) | KR20110094022A (ja) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015516694A (ja) * | 2012-05-14 | 2015-06-11 | ザ・トラスティーズ・オブ・コロンビア・ユニバーシティ・イン・ザ・シティ・オブ・ニューヨーク | 薄膜の改良型エキシマレーザアニーリング |
JPWO2019244665A1 (ja) * | 2018-06-22 | 2020-07-16 | 住友重機械工業株式会社 | 半導体装置のレーザーアニール方法、半導体装置、レーザーアニール方法、レーザーアニール装置の制御装置およびレーザーアニール装置 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US7164152B2 (en) | 2003-09-16 | 2007-01-16 | The Trustees Of Columbia University In The City Of New York | Laser-irradiated thin films having variable thickness |
WO2005029551A2 (en) | 2003-09-16 | 2005-03-31 | The Trustees Of Columbia University In The City Of New York | Processes and systems for laser crystallization processing of film regions on a substrate utilizing a line-type beam, and structures of such film regions |
US7311778B2 (en) * | 2003-09-19 | 2007-12-25 | The Trustees Of Columbia University In The City Of New York | Single scan irradiation for crystallization of thin films |
US7645337B2 (en) | 2004-11-18 | 2010-01-12 | The Trustees Of Columbia University In The City Of New York | Systems and methods for creating crystallographic-orientation controlled poly-silicon films |
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- 2009-11-13 JP JP2011536513A patent/JP2012508985A/ja active Pending
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JP2015516694A (ja) * | 2012-05-14 | 2015-06-11 | ザ・トラスティーズ・オブ・コロンビア・ユニバーシティ・イン・ザ・シティ・オブ・ニューヨーク | 薄膜の改良型エキシマレーザアニーリング |
JPWO2019244665A1 (ja) * | 2018-06-22 | 2020-07-16 | 住友重機械工業株式会社 | 半導体装置のレーザーアニール方法、半導体装置、レーザーアニール方法、レーザーアニール装置の制御装置およびレーザーアニール装置 |
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US8802580B2 (en) | 2014-08-12 |
US20110309370A1 (en) | 2011-12-22 |
EP2351067A4 (en) | 2013-07-03 |
EP2351067A1 (en) | 2011-08-03 |
CN102232239A (zh) | 2011-11-02 |
WO2010056990A1 (en) | 2010-05-20 |
KR20110094022A (ko) | 2011-08-19 |
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