JP4925314B2 - 窒化シリコン膜のドライエッチング方法および薄膜トランジスタの製造方法 - Google Patents
窒化シリコン膜のドライエッチング方法および薄膜トランジスタの製造方法 Download PDFInfo
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- JP4925314B2 JP4925314B2 JP2007143026A JP2007143026A JP4925314B2 JP 4925314 B2 JP4925314 B2 JP 4925314B2 JP 2007143026 A JP2007143026 A JP 2007143026A JP 2007143026 A JP2007143026 A JP 2007143026A JP 4925314 B2 JP4925314 B2 JP 4925314B2
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- film
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- silicon nitride
- dry etching
- thin film
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- 239000010408 film Substances 0.000 title claims description 106
- 229910052581 Si3N4 Inorganic materials 0.000 title claims description 29
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title claims description 29
- 239000010409 thin film Substances 0.000 title claims description 28
- 238000001312 dry etching Methods 0.000 title claims description 20
- 238000000034 method Methods 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000007789 gas Substances 0.000 claims description 48
- 229910052731 fluorine Inorganic materials 0.000 claims description 22
- 239000011737 fluorine Substances 0.000 claims description 22
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 20
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 20
- 238000001020 plasma etching Methods 0.000 claims description 18
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 14
- 229910001882 dioxygen Inorganic materials 0.000 claims description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 229910052754 neon Inorganic materials 0.000 claims description 5
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 5
- 125000001153 fluoro group Chemical group F* 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 description 16
- 239000004065 semiconductor Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 238000000206 photolithography Methods 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
- 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
- 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31144—Etching the insulating layers by chemical or physical means using masks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
-
- 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
- H01L29/6675—Amorphous silicon or polysilicon transistors
- H01L29/66765—Lateral single gate single channel transistors with inverted structure, i.e. the channel layer is formed after the gate
-
- 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
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78651—Silicon transistors
- H01L29/7866—Non-monocrystalline silicon transistors
- H01L29/78663—Amorphous silicon transistors
- H01L29/78669—Amorphous silicon transistors with inverted-type structure, e.g. with bottom gate
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Thin Film Transistor (AREA)
- Drying Of Semiconductors (AREA)
Description
請求項2に記載の発明は、請求項1に記載の発明において、前記反応性イオンエッチングは平行平板型反応性イオンエッチングであることを特徴とするものである。
請求項3に記載の発明は、窒化シリコン膜を有した薄膜トランジスタの製造方法において、ネオンガス又はアルゴンガスと、フッ素ガスと、前記フッ素ガスに対する流量比が1〜4である酸素ガスと、を含む混合ガスを用いた反応性イオンエッチングにより、アモルファスシリコン膜上に形成された前記窒化シリコン膜をドライエッチングすることを特徴とする薄膜トランジスタの製造方法である。
請求項4に記載の発明は、請求項3に記載の発明において、前記反応性イオンエッチングは平行平板型反応性イオンエッチングであることを特徴とするものである。
請求項5に記載の発明は請求項3または4に記載の発明において、ドライエッチングは1〜100Paの真空雰囲気下で行うことを特徴とするものである。
2 ゲート電極
3 ゲート絶縁膜
4 半導体薄膜
5 チャネル保護膜
6、7 オーミックコンタクト層
8 ソース電極
9 ドレイン電極
10 薄膜トランジスタ
11 オーバーコート膜
12 コンタクトホール
13 画素電極
21 真性アモルファスシリコン膜
22 窒化シリコン膜
23 レジスト膜
24 n型アモルファスシリコン膜
25 ソース・ドレイン電極形成用膜
26、27 レジスト膜
31 反応容器
32 高周波電極
33 対向電極
34 高周波電源
35 被加工物
37 真空ポンプ
38 ガス導入管
42、43 電磁弁
44、45 マスフローコントローラ
46 フッ素ガス供給源
47 酸素ガス供給源
Claims (5)
- ネオンガス又はアルゴンガスと、フッ素ガスと、前記フッ素ガスに対する流量比が1〜4である酸素ガスと、を含む混合ガスを用いた反応性イオンエッチングにより、アモルファスシリコン膜上に形成された窒化シリコン膜をドライエッチングすることを特徴とする窒化シリコン膜のドライエッチング方法。
- 請求項1に記載の発明において、前記反応性イオンエッチングは平行平板型反応性イオンエッチングであることを特徴とする窒化シリコン膜のドライエッチング方法。
- 窒化シリコン膜を有した薄膜トランジスタの製造方法において、ネオンガス又はアルゴンガスと、フッ素ガスと、前記フッ素ガスに対する流量比が1〜4である酸素ガスと、を含む混合ガスを用いた反応性イオンエッチングにより、アモルファスシリコン膜上に形成された前記窒化シリコン膜をドライエッチングすることを特徴とする薄膜トランジスタの製造方法。
- 請求項3に記載の発明において、前記反応性イオンエッチングは平行平板型反応性イオンエッチングであることを特徴とする薄膜トランジスタの製造方法。
- 請求項3または4に記載の発明において、ドライエッチングは1〜100Paの真空雰囲気下で行うことを特徴とする薄膜トランジスタの製造方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007143026A JP4925314B2 (ja) | 2007-05-30 | 2007-05-30 | 窒化シリコン膜のドライエッチング方法および薄膜トランジスタの製造方法 |
KR1020080049045A KR20080106025A (ko) | 2007-05-30 | 2008-05-27 | 질화실리콘막의 드라이 에칭방법 |
US12/154,946 US20080299777A1 (en) | 2007-05-30 | 2008-05-28 | Silicon nitride film dry etching method |
TW097119802A TWI384546B (zh) | 2007-05-30 | 2008-05-29 | 氮化矽膜的乾式蝕刻法 |
CN2008100998597A CN101315891B (zh) | 2007-05-30 | 2008-05-30 | 氮化硅膜的干刻蚀方法 |
CN200910165408A CN101694834A (zh) | 2007-05-30 | 2008-05-30 | 薄膜晶体管的制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007143026A JP4925314B2 (ja) | 2007-05-30 | 2007-05-30 | 窒化シリコン膜のドライエッチング方法および薄膜トランジスタの製造方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010106836A Division JP2010177708A (ja) | 2010-05-07 | 2010-05-07 | 窒化シリコン膜のドライエッチング方法および薄膜トランジスタの製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008300478A JP2008300478A (ja) | 2008-12-11 |
JP4925314B2 true JP4925314B2 (ja) | 2012-04-25 |
Family
ID=40088796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007143026A Expired - Fee Related JP4925314B2 (ja) | 2007-05-30 | 2007-05-30 | 窒化シリコン膜のドライエッチング方法および薄膜トランジスタの製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080299777A1 (ja) |
JP (1) | JP4925314B2 (ja) |
KR (1) | KR20080106025A (ja) |
CN (2) | CN101694834A (ja) |
TW (1) | TWI384546B (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4596287B2 (ja) * | 2008-09-19 | 2010-12-08 | カシオ計算機株式会社 | シリコンを含む膜のドライエッチング方法 |
JP5782695B2 (ja) * | 2010-09-29 | 2015-09-24 | 凸版印刷株式会社 | 薄膜トランジスタ、薄膜トランジスタを備える画像表示装置、薄膜トランジスタの製造方法、画像表示装置の製造方法 |
CN102651370B (zh) * | 2012-01-04 | 2014-12-10 | 京东方科技集团股份有限公司 | 一种tft阵列基板、制造方法及显示装置 |
CN103413811B (zh) * | 2013-07-23 | 2016-04-13 | 北京京东方光电科技有限公司 | 阵列基板及其制造方法、显示装置 |
EP3104418B8 (de) * | 2015-06-08 | 2018-04-04 | Meyer Burger (Germany) GmbH | Verfahren und vorrichtung zum texturieren einer siliziumoberfläche |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5878427A (ja) * | 1981-11-05 | 1983-05-12 | Toshiba Corp | ドライエツチング方法 |
JPH08321484A (ja) * | 1995-05-24 | 1996-12-03 | Nec Corp | 半導体装置の製造方法 |
KR100267418B1 (ko) * | 1995-12-28 | 2000-10-16 | 엔도 마코토 | 플라스마처리방법및플라스마처리장치 |
US5786276A (en) * | 1997-03-31 | 1998-07-28 | Applied Materials, Inc. | Selective plasma etching of silicon nitride in presence of silicon or silicon oxides using mixture of CH3F or CH2F2 and CF4 and O2 |
US5868853A (en) * | 1997-06-18 | 1999-02-09 | Taiwan Semiconductor Manufacturing Co. Ltd. | Integrated film etching/chamber cleaning process |
JPH11274143A (ja) * | 1998-03-20 | 1999-10-08 | Advanced Display Inc | ドライエッチング方法及び薄膜トランジスタの製造方法 |
JP2002270575A (ja) * | 2001-03-13 | 2002-09-20 | Seiko Epson Corp | エッチング方法、この方法により製造されたことを特徴とする半導体装置およびエッチング装置 |
WO2002095800A2 (en) * | 2001-05-22 | 2002-11-28 | Reflectivity, Inc. | A method for making a micromechanical device by removing a sacrificial layer with multiple sequential etchants |
JP3914452B2 (ja) * | 2001-08-07 | 2007-05-16 | 株式会社ルネサステクノロジ | 半導体集積回路装置の製造方法 |
AU2002337812A1 (en) * | 2001-10-31 | 2003-05-12 | Tokyo Electron Limited | Method of etching high aspect ratio features |
JP3855081B2 (ja) * | 2002-07-01 | 2006-12-06 | 株式会社日立国際電気 | フッ素ガスによるクリーニング機構を備えたcvd装置およびcvd装置のフッ素ガスによるクリーニング方法 |
KR100497609B1 (ko) * | 2003-02-28 | 2005-07-01 | 삼성전자주식회사 | 실리콘 질화막 식각방법 |
US7338907B2 (en) * | 2004-10-04 | 2008-03-04 | Sharp Laboratories Of America, Inc. | Selective etching processes of silicon nitride and indium oxide thin films for FeRAM device applications |
-
2007
- 2007-05-30 JP JP2007143026A patent/JP4925314B2/ja not_active Expired - Fee Related
-
2008
- 2008-05-27 KR KR1020080049045A patent/KR20080106025A/ko not_active Application Discontinuation
- 2008-05-28 US US12/154,946 patent/US20080299777A1/en not_active Abandoned
- 2008-05-29 TW TW097119802A patent/TWI384546B/zh not_active IP Right Cessation
- 2008-05-30 CN CN200910165408A patent/CN101694834A/zh active Pending
- 2008-05-30 CN CN2008100998597A patent/CN101315891B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
TW200901316A (en) | 2009-01-01 |
CN101315891B (zh) | 2010-06-02 |
TWI384546B (zh) | 2013-02-01 |
US20080299777A1 (en) | 2008-12-04 |
JP2008300478A (ja) | 2008-12-11 |
KR20080106025A (ko) | 2008-12-04 |
CN101315891A (zh) | 2008-12-03 |
CN101694834A (zh) | 2010-04-14 |
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