JP4491375B2 - 液晶表示装置の製造方法 - Google Patents
液晶表示装置の製造方法 Download PDFInfo
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- JP4491375B2 JP4491375B2 JP2005128471A JP2005128471A JP4491375B2 JP 4491375 B2 JP4491375 B2 JP 4491375B2 JP 2005128471 A JP2005128471 A JP 2005128471A JP 2005128471 A JP2005128471 A JP 2005128471A JP 4491375 B2 JP4491375 B2 JP 4491375B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 72
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 60
- 239000010408 film Substances 0.000 claims description 352
- 238000005530 etching Methods 0.000 claims description 80
- 239000004065 semiconductor Substances 0.000 claims description 80
- 239000000758 substrate Substances 0.000 claims description 51
- 239000004020 conductor Substances 0.000 claims description 44
- 238000000059 patterning Methods 0.000 claims description 33
- 239000010410 layer Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 27
- 239000011159 matrix material Substances 0.000 claims description 26
- 239000011229 interlayer Substances 0.000 claims description 24
- 238000001312 dry etching Methods 0.000 claims description 23
- 238000001039 wet etching Methods 0.000 claims description 18
- 239000010409 thin film Substances 0.000 claims description 6
- 230000007547 defect Effects 0.000 description 59
- 239000000428 dust Substances 0.000 description 34
- 230000001681 protective effect Effects 0.000 description 26
- 239000007789 gas Substances 0.000 description 14
- 239000011521 glass Substances 0.000 description 13
- 229910021417 amorphous silicon Inorganic materials 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 230000008439 repair process Effects 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 6
- 229910004205 SiNX Inorganic materials 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
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- 230000002093 peripheral effect Effects 0.000 description 6
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 206010027146 Melanoderma Diseases 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
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- 238000007689 inspection Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
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- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—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
- 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
- H01L27/124—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 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Geometry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Liquid Crystal (AREA)
- Thin Film Transistor (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
[発明の目的]
したがって、本発明の目的は、製造工程数を大幅に増加させることなく、ゴミ付着に起因するパターン不良をリペアできる液晶表示装置の製造方法を提供することにある。
[効果をもたらす手段の働き]
複数の導電体パターンを少なくとも覆い、かつその周囲の絶縁膜を覆うレジスト膜を形成し、このレジスト膜をマスクにしたエッチングにより、導電体パターンのパターン残りはエッチングされる。複数の導電体パターン間を跨ってパターン残りが存在していたと仮定しても、存在していたパターン残りは大部分が除去される。
(第一の実施の形態)
初めに、本発明の第一実施の形態の液晶表示装置の製造方法について、図面を参照しながら説明する。図1は、本発明の第一の実施形態の液晶表示装置の製造方法を説明するための製造工程順の平面図である。図2は、本発明の第一の実施形態による効果を説明するための製造工程順の平面図である。図3は、図1のTFT114付近の製造工程順の断面図である。
(第二実施の形態)
次に、本発明の第二実施の形態の液晶表示装置の製造方法について、図面を参照しながら説明する。図5は、本発明の第二の実施形態の液晶表示装置の製造方法を説明するための製造工程順の平面図である。図6−A及び図6−B(d)は、本発明の第二の実施形態による効果を説明するための製造工程順の平面図である。図6−B(e)及び(f)、図6−Cは、図6−AのTFT214付近の製造工程順の断面図である。
(第三実施の形態)
次に、本発明の第三実施の形態の液晶表示装置の製造方法について、図面を参照しながら説明する。図7は、本発明の第三の実施形態の液晶表示装置の製造方法を説明するための製造工程順の平面図である。図8−A及び図8−B(d)は、本発明の第三の実施形態による効果を説明するための製造工程順の平面図である。図8−B(e)及び(f)、図8−Cは、図8−AのTFT314付近の製造工程順の断面図である。
(発明の拡張)
以上、好ましい実施の形態について説明したが、本発明は上述した実施の形態に限られるものではなく、様々な変更や他構造への適用が可能である。
102 ゲート電極
103 ゲート配線
104 共通電極
105 共通配線
106 ゲート絶縁膜
107 半導体膜
108 保護膜
109 ソース電極
110 ソース配線
111 画素電極
112 ドレイン電極
113 ドレイン配線
114 TFT(薄膜トランジスタ)
115 レジスト膜
116 パターン残り
116a パターン残り(エッチング後)
117 パターン残り
117a パターン残り(エッチング後)
Claims (4)
- アクティブマトリクス基板と対向基板との間に液晶層を挟持する液晶表示装置の製造方法において、前記アクティブマトリクス基板の上方に絶縁膜を形成する工程と、前記絶縁膜上に導電体膜を形成しこれをパターニングすることにより複数の導電体パターンを形成する工程と、前記複数の導電体パターンを少なくとも覆い、かつその周囲の前記絶縁膜を覆うレジスト膜を形成する工程と、前記レジスト膜をマスクに前記アクティブマトリクス基板上方に存在しているパターン残りをエッチングする工程とを備え、
前記絶縁膜はゲート絶縁膜であり、前記導電体パターンは前記ゲート絶縁膜上に形成される、ソース電極、ドレイン電極及びドレイン配線であり、
前記ゲート絶縁膜と前記ソース電極及び前記ドレイン電極との間には薄膜トランジスタのチャネル領域が形成される半導体膜が形成されており、前記レジスト膜をマスクとして、前記導電体パターンのパターン残りを除去する第一のエッチングと、前記半導体膜のパターン残りを除去する第二のエッチングとが順に行われることを特徴とする液晶表示装置の製造方法。 - 前記レジスト膜をマスクとしたエッチングは、ウェットエッチングとドライエッチングとを併用したエッチングであることを特徴とする請求項1に記載の液晶表示装置の製造方法。
- 前記レジスト膜をマスクとしたエッチングで、前記レジスト膜で覆われていない前記絶縁膜の表面がエッチングされくぼみ部が形成されることを特徴とする請求項1又は請求項2に記載の液晶表示装置の製造方法。
- 前記レジスト膜を剥離した後で、前記絶縁膜と前記導電体パターンとを覆う層間絶縁膜を形成する工程と、前記層間絶縁膜に前記導電体パターンへ至るコンタクトホールを形成する工程と、前記層間絶縁膜上に画素電極を形成し前記コンタクトホールを介して前記導電体パターンに電気的に接続する工程とをさらに備えることを特徴とする請求項1乃至請求項3のいずれか一項に記載の液晶表示装置の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005128471A JP4491375B2 (ja) | 2005-04-26 | 2005-04-26 | 液晶表示装置の製造方法 |
CN200610077307.7A CN1854841A (zh) | 2005-04-26 | 2006-04-26 | 制造液晶显示装置的方法 |
US11/411,137 US7300828B2 (en) | 2005-04-26 | 2006-04-26 | Method of manufacturing a liquid crystal display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005128471A JP4491375B2 (ja) | 2005-04-26 | 2005-04-26 | 液晶表示装置の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006308686A JP2006308686A (ja) | 2006-11-09 |
JP4491375B2 true JP4491375B2 (ja) | 2010-06-30 |
Family
ID=37187478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005128471A Expired - Fee Related JP4491375B2 (ja) | 2005-04-26 | 2005-04-26 | 液晶表示装置の製造方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7300828B2 (ja) |
JP (1) | JP4491375B2 (ja) |
CN (1) | CN1854841A (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100947273B1 (ko) * | 2006-12-29 | 2010-03-11 | 엘지디스플레이 주식회사 | 횡전계형 액정표시장치용 어레이 기판 |
JP4650471B2 (ja) * | 2007-09-28 | 2011-03-16 | ソニー株式会社 | 液晶表示装置、その製造方法及び電子機器 |
WO2009078200A1 (ja) * | 2007-12-19 | 2009-06-25 | Sharp Kabushiki Kaisha | アクティブマトリクス基板、アクティブマトリクス基板の製造方法、液晶パネル、液晶表示装置、液晶表示ユニット、テレビジョン受像機 |
JP6436333B2 (ja) * | 2013-08-06 | 2018-12-12 | Tianma Japan株式会社 | 表示装置 |
CN103441130B (zh) * | 2013-08-29 | 2015-08-12 | 京东方科技集团股份有限公司 | 具有静电自防护能力的基板及其制造方法 |
KR101577659B1 (ko) * | 2014-04-29 | 2015-12-16 | 엘지디스플레이 주식회사 | 표시장치용 어레이 기판의 리워크 방법 및 어레이 기판 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05216052A (ja) * | 1992-02-03 | 1993-08-27 | Canon Inc | 液晶素子の製造方法 |
JPH0738111A (ja) * | 1993-07-22 | 1995-02-07 | Fujitsu Ltd | 薄膜トランジスタの形成方法 |
JPH09266179A (ja) * | 1996-03-29 | 1997-10-07 | Nec Corp | タングステン合金電極および配線 |
JPH10115823A (ja) * | 1996-10-11 | 1998-05-06 | Sony Corp | 透明電極の形成方法 |
JPH10268345A (ja) * | 1997-03-24 | 1998-10-09 | Mitsubishi Electric Corp | 液晶表示装置およびその製造方法 |
JP2001339067A (ja) * | 2000-05-26 | 2001-12-07 | Toshiba Corp | 薄膜トランジスタ装置の製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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KR940007451B1 (ko) * | 1991-09-06 | 1994-08-18 | 주식회사 금성사 | 박막트랜지스터 제조방법 |
KR950008931B1 (ko) * | 1992-07-22 | 1995-08-09 | 삼성전자주식회사 | 표시패널의 제조방법 |
JPH10111518A (ja) * | 1996-10-04 | 1998-04-28 | Sharp Corp | アクティブマトリクス基板およびその製造方法 |
KR19980033871A (ko) * | 1996-11-02 | 1998-08-05 | 김광호 | 반도체 장치의 제조 방법 |
EP0925604B1 (en) * | 1997-05-29 | 2008-07-09 | Nxp B.V. | A method of manufacturing an electronic device whereby a conductive layer is provided on an electrically insulating substrate, from which layer a conductor pattern is formed |
KR100277184B1 (ko) * | 1998-06-30 | 2001-01-15 | 김영환 | 액정 표시 장치의 제조방법 |
TW456048B (en) * | 2000-06-30 | 2001-09-21 | Hannstar Display Corp | Manufacturing method for polysilicon thin film transistor liquid crystal display panel |
JP2002318393A (ja) | 2001-04-20 | 2002-10-31 | Matsushita Electric Ind Co Ltd | 液晶表示装置および画像表示応用装置 |
JP4173332B2 (ja) | 2002-08-09 | 2008-10-29 | 三菱電機株式会社 | 表示装置、表示装置の画素修復方法及び表示装置の製造方法 |
-
2005
- 2005-04-26 JP JP2005128471A patent/JP4491375B2/ja not_active Expired - Fee Related
-
2006
- 2006-04-26 CN CN200610077307.7A patent/CN1854841A/zh active Pending
- 2006-04-26 US US11/411,137 patent/US7300828B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05216052A (ja) * | 1992-02-03 | 1993-08-27 | Canon Inc | 液晶素子の製造方法 |
JPH0738111A (ja) * | 1993-07-22 | 1995-02-07 | Fujitsu Ltd | 薄膜トランジスタの形成方法 |
JPH09266179A (ja) * | 1996-03-29 | 1997-10-07 | Nec Corp | タングステン合金電極および配線 |
JPH10115823A (ja) * | 1996-10-11 | 1998-05-06 | Sony Corp | 透明電極の形成方法 |
JPH10268345A (ja) * | 1997-03-24 | 1998-10-09 | Mitsubishi Electric Corp | 液晶表示装置およびその製造方法 |
JP2001339067A (ja) * | 2000-05-26 | 2001-12-07 | Toshiba Corp | 薄膜トランジスタ装置の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1854841A (zh) | 2006-11-01 |
JP2006308686A (ja) | 2006-11-09 |
US7300828B2 (en) | 2007-11-27 |
US20060240606A1 (en) | 2006-10-26 |
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