JP4102788B2 - 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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- JP4102788B2 JP4102788B2 JP2004236463A JP2004236463A JP4102788B2 JP 4102788 B2 JP4102788 B2 JP 4102788B2 JP 2004236463 A JP2004236463 A JP 2004236463A JP 2004236463 A JP2004236463 A JP 2004236463A JP 4102788 B2 JP4102788 B2 JP 4102788B2
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- 239000004973 liquid crystal related substance Substances 0.000 title claims description 75
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 239000000758 substrate Substances 0.000 claims description 163
- 239000010408 film Substances 0.000 claims description 92
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 60
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 26
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 26
- 238000005498 polishing Methods 0.000 claims description 11
- 238000001312 dry etching Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000001039 wet etching Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 40
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 21
- 229910052710 silicon Inorganic materials 0.000 description 21
- 239000010703 silicon Substances 0.000 description 21
- 230000015572 biosynthetic process Effects 0.000 description 13
- 230000001681 protective effect Effects 0.000 description 11
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 10
- 229920005591 polysilicon Polymers 0.000 description 10
- 239000011521 glass Substances 0.000 description 8
- 238000005468 ion implantation Methods 0.000 description 8
- 238000005530 etching Methods 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 7
- 229910021417 amorphous silicon Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- -1 oxygen ions Chemical class 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000006829 Ficus sundaica Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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- 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
- H01L27/1259—Multistep manufacturing methods
-
- 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
- G02F1/136277—Active matrix addressed cells formed on a semiconductor substrate, e.g. of silicon
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/04—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66742—Thin film unipolar transistors
- H01L29/66772—Monocristalline silicon transistors on insulating substrates, e.g. quartz substrates
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/01—Function characteristic transmissive
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- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Ceramic Engineering (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Thin Film Transistor (AREA)
Description
次に、本発明の作用について説明する。
図1〜図11は、本発明に係る液晶表示装置用のスイッチング素子基板、及びその製造方法、並びに液晶表示装置の実施形態1を示している。
次に、図3〜図10を参照して、上記TFT基板21の製造方法について説明する。
したがって、この実施形態1によると、透過領域を構成するシリコン酸化膜1に対し、単結晶シリコン層2aを有する複数のTFTを形成するようにしたので、液晶表示装置として透過表示を行うことができると共に、例えばポリシリコンやアモルファスシリコンを有するTFTに比べて、TFTの動作周波数を飛躍的に高めることができる。その結果、特に、動画の描写性能を顕著に向上することができる。
図12は、本発明に係る液晶表示装置用のスイッチング素子基板、及びその製造方法、並びに液晶表示装置の参考例を示している。尚、上記実施形態1と同じ部分については同じ符号を付して、その詳細な説明は省略する。
したがって、この参考例によると、シリコン酸化膜1の背面側表面に、光を透過させる程度の厚みを有する第2の単結晶シリコン層2aを設けるようにしたので、透過光の輝度を確保しつつ、TFT基板21自体の強度を高めることができる。その結果、TFT基板21を容易に製造できると共に、信頼性を向上させることができる。
上記実施形態では、TFT基板21を構成する絶縁性基板を、シリコン酸化膜1により構成したが、本発明はこれに限らず、例えば、シリコン窒化膜や、アルミ酸化膜により構成してもよい。
1 シリコン酸化膜(絶縁性基板)
2a 第1の単結晶シリコン層、活性領域
2b 第2の単結晶シリコン層(単結晶シリコン層)
10 SOI基板
21 TFT基板(スイッチング素子基板)
22 対向基板
23 液晶層
Claims (9)
- 絶縁性基板の一方の表面側に複数のスイッチング素子が形成されたスイッチング素子基板と、該スイッチング素子基板に対向して配置された対向基板と、上記スイッチング素子基板及び上記対向基板の間に設けられた液晶層とを備え、透過表示を行う液晶表示装置を製造する方法であって、
上記絶縁性基板と、該絶縁性基板の両表面に積層された単結晶シリコン層とにより構成されたSOI基板に対し、上記SOI基板の一方の表面の単結晶シリコン層により上記複数のスイッチング素子を形成する素子形成工程と、
上記SOI基板の他方の表面における単結晶シリコン層の全てを除去して透過領域を形成する除去工程とを備え、
上記除去工程は、上記複数のスイッチング素子が形成された上記絶縁性基板を上記対向基板に貼り合わせた後に行う
ことを特徴とする液晶表示装置の製造方法。 - 請求項1において、
上記除去工程では、ドライエッチングにより単結晶シリコン層を除去する
ことを特徴とする液晶表示装置の製造方法。 - 請求項1において、
上記除去工程では、ウェットエッチングにより単結晶シリコン層を除去する
ことを特徴とする液晶表示装置の製造方法。 - 請求項1において、
上記除去工程では、機械的研磨及び化学的研磨の少なくとも一方により単結晶シリコン層を除去する
ことを特徴とする液晶表示装置の製造方法。 - 請求項1において、
上記絶縁性基板は、シリコン酸化膜である
ことを特徴とする液晶表示装置の製造方法。 - 請求項1において、
上記絶縁性基板は、シリコン窒化膜である
ことを特徴とする液晶表示装置の製造方法。 - 請求項1において、
上記絶縁性基板は、アルミ酸化膜である
ことを特徴とする液晶表示装置の製造方法。 - 請求項1において、
上記スイッチング素子は、薄膜トランジスタである
ことを特徴とする液晶表示装置の製造方法。 - 請求項1において、
上記素子形成工程では、上記絶縁性基板の一方の表面を、隣り合う上記スイッチング素子同士の間において単結晶シリコン層を除去することにより露出させる
ことを特徴とする液晶表示装置の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004236463A JP4102788B2 (ja) | 2004-08-16 | 2004-08-16 | 液晶表示装置の製造方法 |
US11/200,181 US7750349B2 (en) | 2004-08-16 | 2005-08-10 | Switching element substrate, for a liquid crystal display device, including an insulating substrate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004236463A JP4102788B2 (ja) | 2004-08-16 | 2004-08-16 | 液晶表示装置の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006053466A JP2006053466A (ja) | 2006-02-23 |
JP4102788B2 true JP4102788B2 (ja) | 2008-06-18 |
Family
ID=35799615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004236463A Expired - Fee Related JP4102788B2 (ja) | 2004-08-16 | 2004-08-16 | 液晶表示装置の製造方法 |
Country Status (2)
Country | Link |
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US (1) | US7750349B2 (ja) |
JP (1) | JP4102788B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7911568B2 (en) * | 2005-05-13 | 2011-03-22 | Samsung Electronics Co., Ltd. | Multi-layered thin films, thin film transistor array panel including the same, and method of manufacturing the panel |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5514885A (en) * | 1986-10-09 | 1996-05-07 | Myrick; James J. | SOI methods and apparatus |
JP2653099B2 (ja) * | 1988-05-17 | 1997-09-10 | セイコーエプソン株式会社 | アクティブマトリクスパネル,投写型表示装置及びビューファインダー |
JP2824818B2 (ja) | 1991-08-02 | 1998-11-18 | キヤノン株式会社 | アクティブマトリックス液晶表示装置 |
DE69223009T2 (de) | 1991-08-02 | 1998-04-02 | Canon Kk | Flüssigkristall-Anzeigeeinheit |
DE4126107C2 (de) * | 1991-08-07 | 1993-12-16 | Bosch Gmbh Robert | Beschleunigungssensor und Verfahren zur Herstellung |
US6624450B1 (en) * | 1992-03-27 | 2003-09-23 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for forming the same |
JP3526058B2 (ja) | 1992-08-19 | 2004-05-10 | セイコーインスツルメンツ株式会社 | 光弁用半導体装置 |
US5659192A (en) * | 1993-06-30 | 1997-08-19 | Honeywell Inc. | SOI substrate fabrication |
JPH07240527A (ja) | 1994-03-02 | 1995-09-12 | Sanyo Electric Co Ltd | 薄膜トランジスタの製造方法 |
TW486581B (en) * | 1998-01-06 | 2002-05-11 | Seiko Epson Corp | Semiconductor device, substrate for electro-optical device, electro-optical device, electronic equipment, and projection display apparatus |
JP3445511B2 (ja) * | 1998-12-10 | 2003-09-08 | 株式会社東芝 | 絶縁基板、その製造方法およびそれを用いた半導体装置 |
US6346978B1 (en) | 1999-07-13 | 2002-02-12 | Sharp Laboratories Of America, Inc. | SOI TFT array substrate for LCD projection display |
TW498178B (en) * | 2000-05-02 | 2002-08-11 | Hannstar Display Corp | Manufacturing method and structure for in-plane switching mode liquid crystal display unit |
TWI246755B (en) * | 2001-01-29 | 2006-01-01 | Seiko Epson Corp | Semiconductor device, circuit board, electro-optical device, and electronic apparatus |
JP4186502B2 (ja) | 2002-04-22 | 2008-11-26 | ソニー株式会社 | 薄膜デバイスの製造方法、薄膜デバイスおよび表示装置 |
US6835967B2 (en) * | 2003-03-25 | 2004-12-28 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor diodes with fin structure |
-
2004
- 2004-08-16 JP JP2004236463A patent/JP4102788B2/ja not_active Expired - Fee Related
-
2005
- 2005-08-10 US US11/200,181 patent/US7750349B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2006053466A (ja) | 2006-02-23 |
US7750349B2 (en) | 2010-07-06 |
US20060033855A1 (en) | 2006-02-16 |
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