KR100669077B1 - 액정표시장치 액티브패널의 구조 및 그 제조방법 - Google Patents
액정표시장치 액티브패널의 구조 및 그 제조방법 Download PDFInfo
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- KR100669077B1 KR100669077B1 KR1019980018409A KR19980018409A KR100669077B1 KR 100669077 B1 KR100669077 B1 KR 100669077B1 KR 1019980018409 A KR1019980018409 A KR 1019980018409A KR 19980018409 A KR19980018409 A KR 19980018409A KR 100669077 B1 KR100669077 B1 KR 100669077B1
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- storage capacitor
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000003860 storage Methods 0.000 claims abstract description 62
- 239000003990 capacitor Substances 0.000 claims abstract description 57
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 63
- 239000004065 semiconductor Substances 0.000 claims description 45
- 239000010408 film Substances 0.000 claims description 43
- 229910052751 metal Inorganic materials 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 31
- 239000012535 impurity Substances 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 27
- 239000010409 thin film Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 238000002161 passivation Methods 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims 1
- 230000005684 electric field Effects 0.000 abstract description 13
- 206010047571 Visual impairment Diseases 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 229910021417 amorphous silicon Inorganic materials 0.000 description 4
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 230000001788 irregular Effects 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- -1 Acryl Chemical group 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
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- 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
- G02F1/136227—Through-hole connection of the pixel electrode to the active element through an insulation layer
-
- 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
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13458—Terminal pads
-
- 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
- G02F1/136213—Storage capacitors associated with the pixel electrode
-
- 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
-
- 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
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims (11)
- 서로 교차하여 다수의 화소를 정의하며, 기판 상에 게이트 절연막을 사이에 두고 그 하부 및 상부에 각각 형성된 다수의 게이트버스라인 및 데이터버스라인과;상기 게이트버스라인과 데이터버스라인의 교차지점에 형성된 박막트랜지스터와;상기 게이트절연막을 위로 각 화소별로 상기 다수의 게이트버스라인을 선폭방향으로 완전히 덮으며 형성된 다수의 보조용량용 전극과;상기 다수의 게이트 버스라인과 다수의 보조용량용 전극을 덮으며 형성되며, 상기 각 보조용량용 전극 일부를 노출시키는 보조용량 콘택홀과, 상기 박막트랜지스터를 노출시키는 드레인 콘택홀을 갖는 보호막과;상기 보호막 상부로 상기 화소 상하부에 형성된 게이트버스라인 중 하나의 게이트버스라인과 중첩하며, 상기 보조용량 콘택홀을 통하여 상기 보조용량용 전극과 연결되고, 상기 드레인 콘택홀을 통해 상기 박막트랜지스터와 연결되는 화소전극을 포함함을 특징으로 하는 액정표시장치 액티브패널의 구조.
- 제 1 항에 있어서,상기 게이트버스라인이 복수개의 금속막으로 적층되어 있음을 특징으로 하는 액정표시장치 액티브패널의 구조.
- 제 2 항에 있어서,상기 게이트버스라인의 최하층은 알루미늄(Al)을 포함하는 금속막인 것을 특징으로 하는 액정표시장치 액티브패널의 구조.
- 제 2 항에 있어서,상기 게이트버스라인의 최상층은 Mo, Cr 중 선택된 어느 하나로 된 금속막인 것을 특징으로 하는 액정표시장치 액티브패널의 구조.
- 제 1 항에 있어서,상기 박막트랜지스터는상기 보호막 하부에 위치하며 상기 드레인콘택홀을 통하여 상기 화소전극과 연결된 드레인전극과;상기 드레인전극과 대향하며 상기 데이터버스라인과 연결된 소스전극과;두 부분으로 분리되어 각각 상기 드레인전극 및 상기 소스전극의 하부로 상기 두 전극과 각각 접촉하며 형성된 불순물반도체층과;상기 두 부분으로 분리된 불순물반도체층의 하부에 형성된 반도체층과;상기 게이트버스라인에서 분기하며 상기 반도체층 하부에 상기 게이트절연막을 개재하여 형성된 게이트전극을 포함하는 액정표시장치 액티브패널의 구조.
- 제 1 항에 있어서,상기 데이터버스라인의 단부에 이어지는 데이터패드와;상기 게이트버스라인의 단부에 이어지는 게이트패드를 더욱 포함하는 액정표시장치 액티브패널의 구조.
- 투명기판 위에 게이트버스라인과, 상기 게이트버스라인에서 분기하는 게이트전극 등을 포함하는 게이트물질을 형성하는 단계와;상기 게이트버스라인과 게이트전극을 덮는 게이트절연막을 형성하는 단계와;상기 게이트전극에 대응하는 상기 게이트절연막 위에 섬모양으로 반도체층과 불순물반도체층을 형성하는 단계와;상기 불순물반도체층의 일부표면과 접촉되는 소스전극과, 상기 소스전극과 연결된 데이터버스라인과, 상기 소스전극과 대향하며 상기 불순물반도체층의 일부표면과 접촉되는 드레인전극과, 상기 게이트절연막을 개재하여 상기 게이트버스라인을 선폭방향으로 완전히 덮는 보조용량용 전극을 형성하는 단계와;상기 소스전극, 드레인전극 등이 형성된 기판 전면에 보호막을 형성하고, 상기 드레인전극 및 보조용량용 전극을 덮는 보호막의 일부를 제거하여 상기 드레인 전극을 노출시키는 드레인콘택홀 및 상기 보조용량용 전극을 노출시키는 보조용량 콘택홀을 형성하는 단계와;상기 드레인콘택홀을 통하여 상기 드레인전극과 연결됨과 아울러 상기 보조용량 콘택홀을 통하여 상기 보조용량용 전극과 연결되는 화소전극을 형성하는 단계를 포함함을 특징으로 하는 액정표시장치 액티브패널의 제조방법.
- 제 7 항에 있어서,상기 게이트물질을 형성하는 단계에서 복수개의 금속막을 적층하고 동시에 선택에칭하여 복수개의 금속막으로 적층된 게이트물질을 형성함을 특징으로 하는 액정표시장치 액티브패널의 제조방법.
- 제 7 항에 있어서,상기 게이트물질을 형성하는 단계가 제1금속막을 증착하고 선택에칭하여 제1층 게이트물질을 형성하는 단계와, 계속해서 제n금속막을 증착하고 선택에칭하여 제n층 게이트물질을 형성하는 복수 단계를 포함하는 것을 특징으로 하는 액정표시장치 액티브패널의 제조방법.
- 제 8 항 또는 제 9 항에 있어서,상기 게이트버스라인의 최하층은 알루미늄(Al)을 포함하는 금속막인 것을 특징으로 하는 액정표시장치 액티브패널의 제조방법.
- 제 8 항 또는 제 9 항에 있어서,상기 게이트버스라인의 최상층은 Mo, Cr 중 선택된 어느 하나로 된 금속막인 것을 특징으로 하는 액정표시장치 액티브패널의 제조방법.
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KR1019980018409A KR100669077B1 (ko) | 1998-05-21 | 1998-05-21 | 액정표시장치 액티브패널의 구조 및 그 제조방법 |
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Families Citing this family (4)
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KR20000002804A (ko) * | 1998-06-23 | 2000-01-15 | 김영환 | 액정 표시 소자 |
KR100773239B1 (ko) * | 2000-12-29 | 2007-11-02 | 엘지.필립스 엘시디 주식회사 | 액정표시장치 및 그 제조방법 |
KR100831294B1 (ko) * | 2001-03-10 | 2008-05-22 | 엘지디스플레이 주식회사 | 액정표시장치 및 그 제조방법 |
KR100857134B1 (ko) * | 2006-11-27 | 2008-09-05 | 엘지디스플레이 주식회사 | 티엔 모드 액정표시장치와 그 어레이기판 및 그액정표시장치의 제조방법 |
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KR970007452A (ko) * | 1995-07-24 | 1997-02-21 | 세키사와 다다시 | 트랜지스터매트릭스장치 및 그 구동방법 |
KR970028659U (ko) * | 1995-12-26 | 1997-07-24 | 현대자동차주식회사 | 높낮이 조절이 가능한 현가장치 |
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KR970007452A (ko) * | 1995-07-24 | 1997-02-21 | 세키사와 다다시 | 트랜지스터매트릭스장치 및 그 구동방법 |
KR970028659U (ko) * | 1995-12-26 | 1997-07-24 | 현대자동차주식회사 | 높낮이 조절이 가능한 현가장치 |
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