JP2012064954A - 結晶化用光マスク及びこれを利用した薄膜トランジスタ表示板の製造方法 - Google Patents
結晶化用光マスク及びこれを利用した薄膜トランジスタ表示板の製造方法 Download PDFInfo
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- 239000007788 liquid Substances 0.000 description 11
- 229910052581 Si3N4 Inorganic materials 0.000 description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 9
- 229910052814 silicon oxide Inorganic materials 0.000 description 9
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- 238000001259 photo etching Methods 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000011368 organic material Substances 0.000 description 5
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
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- 229910045601 alloy Inorganic materials 0.000 description 3
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- 239000010937 tungsten Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 206010034972 Photosensitivity reaction Diseases 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
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- 125000006850 spacer group Chemical group 0.000 description 2
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
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- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
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- 229910052698 phosphorus Inorganic materials 0.000 description 1
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- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
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- 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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/066—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms by using masks
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- H01L21/02667—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth
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Abstract
【解決手段】本発明による結晶化用光マスクは、スリットが一定に配列されている一つ以上のスリット領域を含み、前記スリットはマスクの移動方向に対し一定角度で傾斜して設けられ、スリット領域は、第1の長さを有する第1部分と第1の長さよりも長い第2の長さを有する第2部分とを含む。
【選択図】 図4
Description
絶縁基板の上部に非晶質シリコン薄膜を形成する段階、
前記非晶質シリコン薄膜を多結晶シリコン薄膜に結晶化する段階、
前記多結晶シリコン薄膜をパターニングして半導体層を形成する段階、
前記半導体層を覆うゲート絶縁膜を形成する段階、
前記半導体層の前記ゲート絶縁膜の上部にゲート電極を形成する段階、
前記半導体層に不純物を注入して前記ゲート電極を中心に両側にソース及びドレイン領域を形成しながらチャンネル領域を定義する段階、
前記ゲート電極を覆う第1層間絶縁膜を形成する段階、
前記ソース及びドレイン領域とそれぞれ電気的に連結されるソース及びドレイン電極を各々形成する段階、
前記ソース及びドレイン電極を覆う第2層間絶縁膜を形成する段階、
前記ドレイン電極と連結されている画素電極を形成する段階を含み、
前記多結晶シリコン薄膜結晶化段階は、結晶化工程においてレーザービームを局部的に透過させるために透過領域を定義するスリットを有し、前記スリットの境界が曲線からなるマスクを利用した順次的固状結晶化工程で実施し、前記順次的固状結晶化工程において前記多結晶シリコンの主結晶粒は、前記チャンネル領域の境界と平行ではないように形成する薄膜トランジスタの製造方法を提供する。
<第1実施例>
図1は本発明の一実施例を説明するための薄膜トランジスタ表示板の配置図であり、図2は図1に示すII-II’線による断面図である。
図10は本発明の第2実施例による液晶表示装置用薄膜トランジスタ表示板の配置図であり、図11は図10に示す切断線XI−XI’−XI”線による断面図である。
<第3実施例>
順次的側面固状結晶工程では、スリットで透過領域を定義するマスクを利用してレーザービームを透過領域を通過させることによって、局部的に非晶質シリコンを完全に溶かして非晶質シリコン層に液状領域を形成した後、固状領域の境界面に垂直にグレーン(grain:結晶粒)を成長させて非晶質シリコンを多結晶シリコンに結晶化する。本発明の実施例ではレーザービームが透過する透過領域を定義するスリットは曲線の境界線を有する。このようなマスクを利用した順次的固状結晶化方法では、多結晶シリコンの主結晶粒はスリットの境界形状に沿った曲線状に形成される。これについて、具体的に図面を参照して説明する。
121 ゲート線
124 ゲート電極
131 維持電極線
133 維持電極
140 ゲート絶縁膜
150 半導体層
153 ソース領域
154 チャンネル領域
155 ドレイン領域
171 データ線
173 ソース電極
175 ドレイン電極
190 画素電極
161〜164 第1〜第4接触孔
Claims (7)
- 結晶化工程においてレーザービームを局部的に透過させるために透過領域を定義するスリットを有する結晶化用マスクであって、
前記スリットの境界は曲線からなる結晶化用マスク。 - 前記スリットは弧状である、請求項1に記載の結晶用マスク。
- 絶縁基板の上部に非晶質シリコン薄膜を形成する段階、
前記非晶質シリコン薄膜を多結晶シリコン薄膜に結晶化する段階、
前記多結晶シリコン薄膜をパターニングして半導体層を形成する段階、
前記半導体層を覆うゲート絶縁膜を形成する段階、
前記半導体層の前記ゲート絶縁膜の上部にゲート電極を形成する段階、
前記半導体層に不純物を注入して前記ゲート電極を中心に両側にソース及びドレイン領域を形成しながらチャンネル領域を定義する段階、
前記ゲート電極を覆う第1層間絶縁膜を形成する段階、
前記ソース及びドレイン領域とそれぞれ電気的に連結されるソース及びドレイン電極を各々形成する段階、
前記ソース及びドレイン電極を覆う第2層間絶縁膜を形成する段階、
前記ドレイン電極と連結されている画素電極を形成する段階を含み、
前記多結晶シリコン薄膜結晶化段階は、結晶化工程においてレーザービームを局部的に透過させるために透過領域を定義するスリットを有し、前記スリットの境界が曲線からなるマスクを利用した順次的固状結晶化工程で実施し、前記順次的固状結晶化工程において前記多結晶シリコンの主結晶粒は、前記チャンネル領域の境界と平行ではないように形成する薄膜トランジスタの製造方法。 - 前記マスクは、レーザービームを局部的に透過させる透過領域を定義し、曲線の境界を有するスリットを有する、請求項3に記載の薄膜トランジスタの製造方法。
- 前記スリットは弧状の境界を有する、請求項4に記載の薄膜トランジスタの製造方法。
- 前記マスクは第1領域及び第2領域を含み、前記第1領域及び第2領域の前記スリットは交互に配置されている、請求項5に記載の薄膜トランジスタの製造方法。
- 前記ソース領域及びドレイン領域と前記チャンネル領域との間に、低濃度のドーピング領域を形成する段階をさらに含む、請求項4に記載の薄膜トランジスタの製造方法。
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KR1020040000547A KR101152115B1 (ko) | 2004-01-06 | 2004-01-06 | 결정화용 광마스크 및 이를 이용한 박막 트랜지스터표시판의 제조 방법 |
KR2004-000547 | 2004-01-06 | ||
KR1020040003216A KR101348759B1 (ko) | 2004-01-16 | 2004-01-16 | 결정화용 마스크, 이를 이용한 박막 트랜지스터의 제조 방법 |
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JP (2) | JP4880225B2 (ja) |
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KR100400510B1 (ko) * | 2000-12-28 | 2003-10-08 | 엘지.필립스 엘시디 주식회사 | 실리콘 결정화 장치와 실리콘 결정화 방법 |
KR100796758B1 (ko) * | 2001-11-14 | 2008-01-22 | 삼성전자주식회사 | 다결정 규소용 마스크 및 이를 이용한 박막 트랜지스터의제조 방법 |
WO2007043493A1 (en) * | 2005-10-14 | 2007-04-19 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
KR101191404B1 (ko) * | 2006-01-12 | 2012-10-16 | 삼성디스플레이 주식회사 | 실리콘 결정화용 마스크와 이를 이용한 실리콘 결정화 방법및 표시 장치 |
KR101192626B1 (ko) * | 2006-05-12 | 2012-10-18 | 삼성디스플레이 주식회사 | 표시 기판과, 이의 제조 방법 및 이를 구비한 표시 장치 |
JP4169071B2 (ja) * | 2006-05-25 | 2008-10-22 | ソニー株式会社 | 表示装置 |
KR101481686B1 (ko) * | 2008-02-12 | 2015-01-13 | 삼성디스플레이 주식회사 | 반도체층 결정화 마스크 및 이를 이용한 반도체층 결정화방법 |
TWI440965B (zh) * | 2011-09-05 | 2014-06-11 | Au Optronics Corp | 光罩、平面顯示面板之導線的製作方法以及平面顯示面板之導線結構 |
JP5574384B2 (ja) * | 2011-09-20 | 2014-08-20 | 株式会社日本製鋼所 | アモルファス膜の結晶化方法および装置 |
CN103050379B (zh) * | 2012-12-10 | 2015-03-04 | 华映视讯(吴江)有限公司 | 窄间距线路的形成方法 |
US10444162B2 (en) * | 2017-04-03 | 2019-10-15 | Samsung Electronics Co., Ltd. | Method of testing an object and apparatus for performing the same |
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Also Published As
Publication number | Publication date |
---|---|
CN1655056A (zh) | 2005-08-17 |
TW201212101A (en) | 2012-03-16 |
CN1655056B (zh) | 2010-10-27 |
TW200601427A (en) | 2006-01-01 |
TWI368256B (en) | 2012-07-11 |
TWI446408B (zh) | 2014-07-21 |
CN101504934A (zh) | 2009-08-12 |
US7858450B2 (en) | 2010-12-28 |
JP2005197746A (ja) | 2005-07-21 |
US20050173752A1 (en) | 2005-08-11 |
JP4880225B2 (ja) | 2012-02-22 |
JP5613131B2 (ja) | 2014-10-22 |
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