KR0175016B1 - 선택적 텅스텐 질화 박막 형성방법 및 이를 이용한 금속배선 방법 - Google Patents
선택적 텅스텐 질화 박막 형성방법 및 이를 이용한 금속배선 방법 Download PDFInfo
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- KR0175016B1 KR0175016B1 KR1019950034565A KR19950034565A KR0175016B1 KR 0175016 B1 KR0175016 B1 KR 0175016B1 KR 1019950034565 A KR1019950034565 A KR 1019950034565A KR 19950034565 A KR19950034565 A KR 19950034565A KR 0175016 B1 KR0175016 B1 KR 0175016B1
- Authority
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- South Korea
- Prior art keywords
- thin film
- tungsten
- film
- tungsten nitride
- nitride thin
- Prior art date
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- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 89
- 239000010937 tungsten Substances 0.000 title claims abstract description 87
- 239000010409 thin film Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 59
- -1 tungsten nitride Chemical class 0.000 title claims abstract description 56
- 230000015572 biosynthetic process Effects 0.000 title description 2
- 238000001465 metallisation Methods 0.000 title 1
- 239000010408 film Substances 0.000 claims abstract description 77
- 229910052751 metal Inorganic materials 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 52
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 239000004065 semiconductor Substances 0.000 claims abstract description 30
- 238000005229 chemical vapour deposition Methods 0.000 claims abstract description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 34
- 229910052710 silicon Inorganic materials 0.000 claims description 34
- 239000010703 silicon Substances 0.000 claims description 34
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 29
- 238000000151 deposition Methods 0.000 claims description 25
- 230000004888 barrier function Effects 0.000 claims description 21
- 239000010936 titanium Substances 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 15
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 238000011065 in-situ storage Methods 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 claims description 7
- 229910021342 tungsten silicide Inorganic materials 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 238000005530 etching Methods 0.000 claims description 5
- 150000003658 tungsten compounds Chemical class 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 150000002484 inorganic compounds Chemical class 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 150000002894 organic compounds Chemical class 0.000 claims description 4
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical class [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 229910010272 inorganic material Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 29
- 230000008021 deposition Effects 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 229910008486 TiSix Inorganic materials 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 238000001312 dry etching Methods 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- 229910021341 titanium silicide Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- HDZGCSFEDULWCS-UHFFFAOYSA-N monomethylhydrazine Chemical compound CNN HDZGCSFEDULWCS-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
-
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28556—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (13)
- 절연막이 형성되어 있는 반도체기판에 콘택홀을 형성하는 단계; 및 화학기상증착 방법으로 상기 콘택홀의 내부에만 선택적으로 텅스텐 질화 박막을 증착하는 단계를 구비하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서, 상기 콘택홀은 상기 절연막 및 상기 반도체기판의 소정깊이를 식각하여 트렌치 홀로 형성하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서, 상기 절연막으로 실리콘산화막, 실리콘질화막, 또는 실리콘산화막이나 실리콘질화막에 불순물을 첨가한 막을 사용하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서, 상기 반도체기판은 실리콘(Si), 알루미늄(Al), 텅스텐(W), 몰리브덴(Mo), 코발트(Co), 티타늄(Ti), 구리(Cu), 플라티늄(Pt) 등과 같은 순수 금속, 그들의 실리사이드 화합물, 및 그들의 합금으로 이루어진 군에서 선택된 어느 하나로 형성하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서, 상기 텅스텐 질화 박막은 WF6, WCl6등 텅스텐 원소를 함유하고 있는 가스와 질소가 함유되어 있는 무기 또는 유기계 화합물을 사용하여 증착하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제5항에 있어서, 상기 무기계 화합물로 N2, NH3등의 가스를 사용하고, 상기 유기계 화합물로 메틸-하이드라이진을 사용하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항 또는 제5항에 있어서, 상기 텅스텐 질화 박막을 증착하는 공정에서, 화학반응 환원제로서 H2, SiH4, SiHlCl3, SiH2Cl2, PH3등을 사용하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서, 상기 텅스텐 질화 박막을 형성하는 단계 후, 인-시튜 방법으로 상기 텅스텐 질화 박막 상에 선택적 금속 박막을 증착하여 금속배선을 형성하는 단계를 더 구비하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제8항에 있어서, 상기 선택적 금속 박막은 알루미늄(Al), 텅스텐(W), 몰리브덴(Mo), 코발트(Co), 티타늄(Ti), 구리(Cu), 플라티늄(Pt) 층과 같은 순수 금속, 그들의 실리사이드 화합물, 및 그들의 합금으로 이루어진 군에서 선택된 어느 하나로 형성하는 것을 특징으로 하는 반도체장치의 제조방법.
- 반도체기판 상에 절연막을 형성하는 단계; 상기 절연막을 식각하여 상기 반도체기판의 접합영역을 노출시키는 콘택홀을 형성하는 단계; 상기 콘택홀이 형성되어 있는 결과물 상에 텅스텐 화합물을 선택적 화학기상증착(CVD) 방법으로 증착함으로써 오믹층을 형성하는 단계; 인-시튜 방법으로 상기 오믹층 상에 선택적 CVD-텅스텐 질화 박막을 연속적으로 증착하여 장벽층을 형성하는 단계; 및 상기 장벽층 상에 금속 박막을 증착하여 금속배선을 형성하는 단계를 구비하는 것을 특징으로 하는 반도체장치의 금속배선 형성방법.
- 제10항에 있어서, 상기 텅스텐 화합물은 CVD-텅스텐, 텅스텐 실리사이드, 및 팅스텐 질화물의 군에서 선택된 어느 하나를 사용하는 것을 특징으로 하는 반도체장치의 금속배선 형성방법.
- 제10항에 있어서, 상기 오믹층을 형성하는 단계는, 상기 콘택홀이 형성되어 있는 반도체기판 상에 장벽층으로 사용되는 텅스텐 질화 박막을 직접 증착하는 단계 및 어닐링 처리로써 상기 텅스텐과 실리콘의 반응을 유도하여, 상기 텅스텐 질화 박막의 하부에 얇은 텅스텐 실리사이드막을 형성함으로써 오믹층을 형성하는 단계로 이루어진 것을 특징으로 하는 반도체장치의 금속배선 형성방법.
- 제10항에 있어서, 상기 금속 박막은 상기 장벽층을 증착한 동일 챔버 내에서 인-시튜로 연속적으로 증착하는 것을 특징으로 하는 반도체장치의 금속배선 형성방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950034565A KR0175016B1 (ko) | 1995-10-09 | 1995-10-09 | 선택적 텅스텐 질화 박막 형성방법 및 이를 이용한 금속배선 방법 |
TW085113959A TW351839B (en) | 1995-10-09 | 1996-11-14 | Tungsten nitride [WNx] layer manufacturing method and metal wiring manufacturing method using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950034565A KR0175016B1 (ko) | 1995-10-09 | 1995-10-09 | 선택적 텅스텐 질화 박막 형성방법 및 이를 이용한 금속배선 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970023849A KR970023849A (ko) | 1997-05-30 |
KR0175016B1 true KR0175016B1 (ko) | 1999-04-01 |
Family
ID=19429630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950034565A KR0175016B1 (ko) | 1995-10-09 | 1995-10-09 | 선택적 텅스텐 질화 박막 형성방법 및 이를 이용한 금속배선 방법 |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR0175016B1 (ko) |
TW (1) | TW351839B (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980060532A (ko) * | 1996-12-31 | 1998-10-07 | 김영환 | 반도체 소자의 금속 배선 형성 방법 |
KR100428804B1 (ko) | 2001-02-23 | 2004-04-29 | 삼성전자주식회사 | 반도체 제조 공정의 막질 형성 방법, 이를 이용한 트렌치 격리 형성 방법 및 그에 따른 소자 분리 트렌치 격리 구조 |
-
1995
- 1995-10-09 KR KR1019950034565A patent/KR0175016B1/ko not_active IP Right Cessation
-
1996
- 1996-11-14 TW TW085113959A patent/TW351839B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR970023849A (ko) | 1997-05-30 |
TW351839B (en) | 1999-02-01 |
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