JP5250476B2 - ドライエッチング方法 - Google Patents
ドライエッチング方法 Download PDFInfo
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- JP5250476B2 JP5250476B2 JP2009114109A JP2009114109A JP5250476B2 JP 5250476 B2 JP5250476 B2 JP 5250476B2 JP 2009114109 A JP2009114109 A JP 2009114109A JP 2009114109 A JP2009114109 A JP 2009114109A JP 5250476 B2 JP5250476 B2 JP 5250476B2
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- plasma
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- 238000000034 method Methods 0.000 title claims description 40
- 238000001312 dry etching Methods 0.000 title claims description 11
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 37
- 229920005591 polysilicon Polymers 0.000 claims description 37
- 229910052799 carbon Inorganic materials 0.000 claims description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 26
- 229920000642 polymer Polymers 0.000 claims description 23
- 230000001681 protective effect Effects 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 238000004380 ashing Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 238000001020 plasma etching Methods 0.000 claims 5
- 238000005530 etching Methods 0.000 description 36
- 239000007769 metal material Substances 0.000 description 15
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 13
- 229910004298 SiO 2 Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001721 carbon Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- -1 CH 4 Chemical compound 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910004129 HfSiO Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32139—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer using masks
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/42—Stripping or agents therefor
- G03F7/427—Stripping or agents therefor using plasma means only
-
- 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
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/02068—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers
- H01L21/02071—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers the processing being a delineation, e.g. RIE, of conductive layers
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02115—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material being carbon, e.g. alpha-C, diamond or hydrogen doped carbon
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02274—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Drying Of Semiconductors (AREA)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Description
102 ゲート絶縁膜(SiO2膜)
103 高誘電体ゲート絶縁膜(HfO2)
104 金属膜(TiN膜)
105 ポリシリコン膜
106 ハードマスク(SiO2膜)
107 保護膜
108 飛散金属物質(TiN)
Claims (4)
- ポリシリコン膜と前記ポリシリコン膜の下方に配置された金属を含有する膜と前記金属を含有する膜の下方に配置された高誘電体膜とを有し、表面上に前記高誘電体膜が配置された半導体基板に前記ポリシリコン膜と前記金属を含有する膜をプラズマエッチングすることにより金属ゲート電極を形成するドライエッチング方法において、
前記ポリシリコン膜をプラズマエッチングする第一の工程と、
前記第一の工程後、カーボンを含むプラズマにより前記第一の工程にてプラズマエッチングされたポリシリコン膜の側壁にカーボンポリマの保護膜を形成する第二の工程と、
前記第二の工程後、ハロゲン系ガスのプラズマにより前記金属を含有する膜をプラズマエッチングする第三の工程と、
前記第三の工程後、前記カーボンポリマの保護膜と前記カーボンポリマの保護膜上に堆積した前記金属を含有する膜をアッシングする第四の工程と、を有することを特徴とするドライエッチング方法。 - 請求項1記載のドライエッチング方法において、
前記第二の工程は、CHF3ガスを用いることを特徴とするドライエッチング方法。 - 請求項1記載のドライエッチング方法において、
前記カーボンを含むプラズマは、CHF3,CH4,C2H6,CH2F2,CF4,C4F8,C3F6,C3F8,CH3OH,COの中から少なくとも一つを含むガス、または、CHF3,CH4,C2H6,CH2F2,CF4,C4F8,C3F6,C3F8,CH3OH,COの中から2つ以上を混合した混合ガス、または、CHF3,CH4,C2H6,CH2F2,CF4,C4F8,C3F6,C3F8,CH3OH,COの中から少なくとも一つを含むガスにAr,He,O2,N2,HBr,Cl2のいずれかのガスを混合したガスを用いて生成されることを特徴とするドライエッチング方法。 - 請求項1記載のドライエッチング方法において、
前記第四の工程は、プラズマエッチング処理後にプラズマエッチングが行なわれた処理室、または別のアッシング装置で行われることを特徴とするドライエッチング方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009114109A JP5250476B2 (ja) | 2009-05-11 | 2009-05-11 | ドライエッチング方法 |
TW098124871A TWI404140B (zh) | 2009-05-11 | 2009-07-23 | 乾蝕刻方法 |
KR1020090069302A KR101044427B1 (ko) | 2009-05-11 | 2009-07-29 | 드라이 에칭방법 |
US12/512,103 US7989330B2 (en) | 2009-05-11 | 2009-07-30 | Dry etching method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009114109A JP5250476B2 (ja) | 2009-05-11 | 2009-05-11 | ドライエッチング方法 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2010263132A JP2010263132A (ja) | 2010-11-18 |
JP2010263132A5 JP2010263132A5 (ja) | 2012-12-13 |
JP5250476B2 true JP5250476B2 (ja) | 2013-07-31 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009114109A Active JP5250476B2 (ja) | 2009-05-11 | 2009-05-11 | ドライエッチング方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7989330B2 (ja) |
JP (1) | JP5250476B2 (ja) |
KR (1) | KR101044427B1 (ja) |
TW (1) | TWI404140B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6007754B2 (ja) * | 2012-11-27 | 2016-10-12 | 三菱電機株式会社 | 配線構造の製造方法 |
CN104241088B (zh) * | 2013-06-09 | 2017-07-14 | 中芯国际集成电路制造(上海)有限公司 | 条形结构的形成方法 |
JP6267953B2 (ja) * | 2013-12-19 | 2018-01-24 | 東京エレクトロン株式会社 | 半導体装置の製造方法 |
US10840105B2 (en) | 2015-06-15 | 2020-11-17 | Taiwan Semiconductor Manufacturing Co., Ltd. | Gate structure with insulating structure and method for manufacturing the same |
JP7061941B2 (ja) * | 2018-08-06 | 2022-05-02 | 東京エレクトロン株式会社 | エッチング方法及び半導体デバイスの製造方法 |
US11915933B2 (en) * | 2020-09-18 | 2024-02-27 | Changxin Memory Technologies, Inc. | Manufacturing method of semiconductor structure |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3662275B2 (ja) * | 1994-07-13 | 2005-06-22 | ソニー株式会社 | ドライエッチング方法 |
US5767018A (en) * | 1995-11-08 | 1998-06-16 | Advanced Micro Devices, Inc. | Method of etching a polysilicon pattern |
JPH10303183A (ja) * | 1997-04-28 | 1998-11-13 | Sony Corp | パターンの形成方法 |
US6071822A (en) * | 1998-06-08 | 2000-06-06 | Plasma-Therm, Inc. | Etching process for producing substantially undercut free silicon on insulator structures |
JP2000091318A (ja) * | 1998-09-09 | 2000-03-31 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2000277494A (ja) * | 1999-03-26 | 2000-10-06 | Sony Corp | 有機系反射防止膜のエッチング方法および半導体装置の製造方法 |
US20040209468A1 (en) * | 2003-04-17 | 2004-10-21 | Applied Materials Inc. | Method for fabricating a gate structure of a field effect transistor |
US6955964B2 (en) * | 2003-11-05 | 2005-10-18 | Promos Technologies, Inc. | Formation of a double gate structure |
US7163880B2 (en) * | 2004-06-02 | 2007-01-16 | Texas Instruments Incorporated | Gate stack and gate stack etch sequence for metal gate integration |
KR100616193B1 (ko) * | 2004-09-15 | 2006-08-25 | 에스티마이크로일렉트로닉스 엔.브이. | 비휘발성 메모리 소자의 게이트 전극 형성방법 |
US7208424B2 (en) * | 2004-09-17 | 2007-04-24 | Freescale Semiconductor, Inc. | Method of forming a semiconductor device having a metal layer |
JP4849881B2 (ja) * | 2005-12-08 | 2012-01-11 | 株式会社日立ハイテクノロジーズ | プラズマエッチング方法 |
JP4865373B2 (ja) * | 2006-03-17 | 2012-02-01 | 株式会社日立ハイテクノロジーズ | ドライエッチング方法 |
US8183161B2 (en) * | 2006-09-12 | 2012-05-22 | Tokyo Electron Limited | Method and system for dry etching a hafnium containing material |
US7815814B2 (en) * | 2007-03-23 | 2010-10-19 | Tokyo Electron Limited | Method and system for dry etching a metal nitride |
JP5223364B2 (ja) * | 2008-02-07 | 2013-06-26 | 東京エレクトロン株式会社 | プラズマエッチング方法及び記憶媒体 |
JP5547878B2 (ja) * | 2008-06-30 | 2014-07-16 | 株式会社日立ハイテクノロジーズ | 半導体加工方法 |
JP5579374B2 (ja) * | 2008-07-16 | 2014-08-27 | 株式会社日立ハイテクノロジーズ | 半導体加工方法 |
JP2010199126A (ja) * | 2009-02-23 | 2010-09-09 | Panasonic Corp | プラズマ処理方法およびプラズマ処理装置 |
-
2009
- 2009-05-11 JP JP2009114109A patent/JP5250476B2/ja active Active
- 2009-07-23 TW TW098124871A patent/TWI404140B/zh active
- 2009-07-29 KR KR1020090069302A patent/KR101044427B1/ko active IP Right Grant
- 2009-07-30 US US12/512,103 patent/US7989330B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
KR20100122039A (ko) | 2010-11-19 |
TWI404140B (zh) | 2013-08-01 |
TW201041031A (en) | 2010-11-16 |
US7989330B2 (en) | 2011-08-02 |
KR101044427B1 (ko) | 2011-06-27 |
JP2010263132A (ja) | 2010-11-18 |
US20100285669A1 (en) | 2010-11-11 |
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