KR100477569B1 - 레이저 어닐방법 및 레이저 어닐조건 결정장치 - Google Patents
레이저 어닐방법 및 레이저 어닐조건 결정장치 Download PDFInfo
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- KR100477569B1 KR100477569B1 KR10-2002-0048369A KR20020048369A KR100477569B1 KR 100477569 B1 KR100477569 B1 KR 100477569B1 KR 20020048369 A KR20020048369 A KR 20020048369A KR 100477569 B1 KR100477569 B1 KR 100477569B1
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- 238000005224 laser annealing Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 40
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 64
- 239000010408 film Substances 0.000 claims abstract description 45
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 40
- 229920005591 polysilicon Polymers 0.000 claims abstract description 38
- 239000002245 particle Substances 0.000 claims abstract description 18
- 230000001678 irradiating effect Effects 0.000 claims abstract description 17
- 239000010409 thin film Substances 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims description 22
- 238000002834 transmittance Methods 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 description 11
- 239000010410 layer Substances 0.000 description 10
- 239000011521 glass Substances 0.000 description 6
- 238000000149 argon plasma sintering Methods 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 230000003750 conditioning effect Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910004205 SiNX Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- OFIYHXOOOISSDN-UHFFFAOYSA-N tellanylidenegallium Chemical compound [Te]=[Ga] OFIYHXOOOISSDN-UHFFFAOYSA-N 0.000 description 1
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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
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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
- H01L21/30—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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
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- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
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Abstract
Description
Claims (17)
- 비정질 실리콘박막에 레이저빔을 조사함으로써 상기 비정질 실리콘을 다결정실리콘으로 변환하는 레이저 어닐방법에 있어서,레이저 어닐 전에 미리 여러 가지 에너지밀도 조건에서 비정질 실리콘막 시료에 조건결정용 레이저빔을 조사하여 여러 가지 입자직경의 복수의 다결정실리콘막 시료를 작성하는 공정과,가시영역의 파장을 중심에 갖는 광을 상기 다결정실리콘의 평면에 세운 수선(垂線)에 대해 소정의 입사각으로 상기 다결정실리콘에 입사하고서 그 산란광 또는 반사광을 상기 입사광의 정반사방향 이외의 각도에서 검출함으로써 상기 복수의 다결정실리콘막 시료의 표면산란도를 측정하여 가장 높은 산란강도의 다결정실리콘막 시료에 대응하는 에너지밀도 조건을 구하는 공정,상기 구해진 에너지밀도 조건에 일정의 에너지밀도의 값을 더하여 에너지밀도 설정치를 결정하는 공정 및,상기 결정된 에너지밀도 설정치로 상기 비정질 실리콘박막에 레이저빔을 조사하여 레이저 어닐을 행하는 공정을 구비하여 이루어진 것을 특징으로 하는 레이저 어닐방법.
- 제1항에 있어서, 상기 입사광의 입사각이 40∼50°이고, 상기 산란광 또는 반사광을, 상기 입사광과는 수선을 매개로 해서 반대측으로 10∼35° 또는 55∼80°의 방향에서 검출하는 것을 특징으로 하는 레이저 어닐방법.
- 제1항에 있어서, 상기 에너지밀도 조건에 더하는 일정의 에너지밀도의 값이 10mJ/㎠∼40mJ/㎠인 것을 특징으로 하는 레이저 어닐방법.
- 삭제
- 제1항에 있어서, 상기 에너지밀도 조건에 더하는 일정의 에너지밀도의 값이 상기 비정질 실리콘막 시료의 막두께의 증가에 따라 증가하는 것을 특징으로 하는 레이저 어닐방법.
- 삭제
- 제1항에 있어서, 상기 레이저빔의 에너지밀도 대신 레이저빔의 감쇠기 투과율을 사용하는 것을 특징으로 하는 레이저 어닐방법.
- 제1항에 있어서, 상기 여러 가지 입자직경의 복수의 다결정실리콘막 시료가 1매의 기판상에 형성되는 것을 특징으로 하는 레이저 어닐방법.
- 비정질 실리콘박막에 레이저빔을 조사함으로써 상기 비정질 실리콘을 다결정실리콘으로 변환하는 레이저 어닐방법에 이용되는 조건결정장치에 있어서,여러 가지 에너지밀도 조건에서 비정질 실리콘막 시료에 조건결정용 레이저빔을 조사시켜 작성된 여러 가지 입자직경의 복수의 다결정실리콘막 시료에 대해, 가시영역의 파장을 중심에 갖는 광을 상기 다결정실리콘막 시료의 평면에 세운 수선에 대해 소정의 입사각으로 입사시키도록 배치된 광원과,상기 다결정실리콘막 시료로부터의 산란광 또는 반사광을 상기 입사광의 정반사방향 이외의 각도에서 검출하도록 배치된 검출기,상기 검출기에 의해 상기 복수의 다결정실리콘막 시료의 표면산란도를 측정하여 가장 높은 산란강도의 다결정실리콘막 시료에 대응하는 에너지밀도 조건을 구하는 기구 및,상기 구해진 에너지밀도 조건에 일정의 에너지밀도의 값을 더하여 에너지밀도 설정치를 결정하는 기구를 구비한 것을 특징으로 하는 레이저 어닐조건 결정장치.
- 제9항에 있어서, 상기 입사광의 입사각이 40∼50°이고, 상기 산란광 또는 반사광이, 상기 입사광과는 수선을 매개로 해서 반대측으로 10∼35° 또는 55∼80°의 방향에서 검출되는 것을 특징으로 하는 레이저 어닐조건 결정장치.
- 제10항에 있어서, 상기 검출기가 포토다이오드, CCD, MOS 트랜지스터, 포토멀티플라이어 및 바이플래너 광전관으로 이루어진 군으로부터 선택된 광전변환소자, 또는 그들을 이용한 색도계 혹은 색차계인 것을 특징으로 하는 레이저 어닐조건 결정장치.
- 제9항에 있어서, 상기 에너지밀도 조건에 더해지는 일정의 에너지밀도의 값이 10mJ/㎠∼40mJ/㎠인 것을 특징으로 하는 레이저 어닐조건 결정장치.
- 삭제
- 제9항에 있어서, 상기 에너지밀도 조건에 더해지는 일정의 에너지밀도의 값이 상기 비정질 실리콘막 시료의 막두께의 증가에 따라 증가하도록 된 것을 특징으로 하는 레이저 어닐조건 결정장치.
- 삭제
- 제9항에 있어서, 상기 레이저빔의 에너지밀도 대신 레이저빔의 감쇠기 투과율을 사용하도록 된 것을 특징으로 하는 레이저 어닐조건 결정장치.
- 제9항에 있어서, 상기 여러 가지 입자직경의 복수의 다결정실리콘막 시료가 1매의 기판상에 형성되어 있는 것을 특징으로 하는 레이저 어닐조건 결정장치.
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Application Number | Priority Date | Filing Date | Title |
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JP2001248094A JP5091378B2 (ja) | 2001-08-17 | 2001-08-17 | レーザアニール方法及びレーザアニール条件決定装置 |
JPJP-P-2001-00248094 | 2001-08-17 |
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KR20030015877A KR20030015877A (ko) | 2003-02-25 |
KR100477569B1 true KR100477569B1 (ko) | 2005-03-18 |
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KR10-2002-0048369A KR100477569B1 (ko) | 2001-08-17 | 2002-08-16 | 레이저 어닐방법 및 레이저 어닐조건 결정장치 |
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US (1) | US6815377B2 (ko) |
JP (1) | JP5091378B2 (ko) |
KR (1) | KR100477569B1 (ko) |
SG (1) | SG100798A1 (ko) |
TW (1) | TWI245112B (ko) |
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TWI289896B (en) * | 2001-11-09 | 2007-11-11 | Semiconductor Energy Lab | Laser irradiation apparatus, laser irradiation method, and method of manufacturing a semiconductor device |
TW200414280A (en) * | 2002-09-25 | 2004-08-01 | Adv Lcd Tech Dev Ct Co Ltd | Semiconductor device, annealing method, annealing apparatus and display apparatus |
TWI254792B (en) * | 2003-07-01 | 2006-05-11 | Au Optronics Corp | Detecting method and device of laser crystalline silicon |
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JP3650943B2 (ja) * | 1995-10-05 | 2005-05-25 | 株式会社日本製鋼所 | レーザーアニール処理装置 |
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JP4116141B2 (ja) * | 1998-03-26 | 2008-07-09 | 東芝松下ディスプレイテクノロジー株式会社 | 結晶シリコン膜の製造方法 |
JP4016504B2 (ja) * | 1998-10-05 | 2007-12-05 | セイコーエプソン株式会社 | 半導体膜の製造方法及びアニール装置 |
JP2001110861A (ja) * | 1999-10-06 | 2001-04-20 | Seiko Epson Corp | 半導体膜の検査方法、薄膜トランジスタの製造方法、および半導体膜の検査装置 |
JP2002158186A (ja) * | 2000-11-21 | 2002-05-31 | Toshiba Corp | レーザアニール方法およびその装置 |
JP4664512B2 (ja) * | 2001-01-15 | 2011-04-06 | 東芝モバイルディスプレイ株式会社 | レーザアニール方法 |
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US6815377B2 (en) | 2004-11-09 |
US20030036251A1 (en) | 2003-02-20 |
TWI245112B (en) | 2005-12-11 |
JP2003059830A (ja) | 2003-02-28 |
JP5091378B2 (ja) | 2012-12-05 |
KR20030015877A (ko) | 2003-02-25 |
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