WO2002094957A3 - Chemical mechanical polishing compositions and methods relating thereto - Google Patents
Chemical mechanical polishing compositions and methods relating thereto Download PDFInfo
- Publication number
- WO2002094957A3 WO2002094957A3 PCT/US2002/015825 US0215825W WO02094957A3 WO 2002094957 A3 WO2002094957 A3 WO 2002094957A3 US 0215825 W US0215825 W US 0215825W WO 02094957 A3 WO02094957 A3 WO 02094957A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal
- cmp
- mechanical polishing
- chemical mechanical
- polishing compositions
- Prior art date
Links
- 238000005498 polishing Methods 0.000 title abstract 3
- 239000000203 mixture Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 239000000126 substance Substances 0.000 title 1
- 239000002184 metal Substances 0.000 abstract 5
- 229920001577 copolymer Polymers 0.000 abstract 3
- 125000000524 functional group Chemical group 0.000 abstract 2
- 239000008139 complexing agent Substances 0.000 abstract 1
- 230000002209 hydrophobic effect Effects 0.000 abstract 1
- 239000003112 inhibitor Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
- C09K3/1463—Aqueous liquid suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
- B24B37/044—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor characterised by the composition of the lapping agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
- B24B37/20—Lapping pads for working plane surfaces
- B24B37/24—Lapping pads for working plane surfaces characterised by the composition or properties of the pad materials
-
- 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
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02736981A EP1399517A2 (en) | 2001-05-18 | 2002-05-17 | Chemical mechanical polishing compositions and methods relating thereto |
JP2002592420A JP2005502188A (en) | 2001-05-18 | 2002-05-17 | Chemical mechanical polishing composition and method related thereto |
KR20037014999A KR20040002972A (en) | 2001-05-18 | 2002-05-17 | Chemical mechanical polishing compositions and methods relating thereto |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/860,933 | 2001-05-18 | ||
US09/860,933 US6632259B2 (en) | 2001-05-18 | 2001-05-18 | Chemical mechanical polishing compositions and methods relating thereto |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002094957A2 WO2002094957A2 (en) | 2002-11-28 |
WO2002094957A3 true WO2002094957A3 (en) | 2003-10-23 |
Family
ID=25334410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/015825 WO2002094957A2 (en) | 2001-05-18 | 2002-05-17 | Chemical mechanical polishing compositions and methods relating thereto |
Country Status (7)
Country | Link |
---|---|
US (4) | US6632259B2 (en) |
EP (1) | EP1399517A2 (en) |
JP (1) | JP2005502188A (en) |
KR (1) | KR20040002972A (en) |
CN (1) | CN1261511C (en) |
TW (1) | TWI241328B (en) |
WO (1) | WO2002094957A2 (en) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6632259B2 (en) * | 2001-05-18 | 2003-10-14 | Rodel Holdings, Inc. | Chemical mechanical polishing compositions and methods relating thereto |
US6783432B2 (en) * | 2001-06-04 | 2004-08-31 | Applied Materials Inc. | Additives for pressure sensitive polishing compositions |
US6821897B2 (en) * | 2001-12-05 | 2004-11-23 | Cabot Microelectronics Corporation | Method for copper CMP using polymeric complexing agents |
US7004819B2 (en) * | 2002-01-18 | 2006-02-28 | Cabot Microelectronics Corporation | CMP systems and methods utilizing amine-containing polymers |
US20040092102A1 (en) * | 2002-11-12 | 2004-05-13 | Sachem, Inc. | Chemical mechanical polishing composition and method |
US6803353B2 (en) * | 2002-11-12 | 2004-10-12 | Atofina Chemicals, Inc. | Copper chemical mechanical polishing solutions using sulfonated amphiprotic agents |
TWI276169B (en) * | 2003-01-31 | 2007-03-11 | Hitachi Chemical Co Ltd | CMP abrasive and polishing method |
JP2004303983A (en) * | 2003-03-31 | 2004-10-28 | Fuji Photo Film Co Ltd | Polishing pad |
US7387970B2 (en) * | 2003-05-07 | 2008-06-17 | Freescale Semiconductor, Inc. | Method of using an aqueous solution and composition thereof |
SG168412A1 (en) * | 2003-06-03 | 2011-02-28 | Nexplanar Corp | Synthesis of a functionally graded pad for chemical mechanical planarization |
US7247566B2 (en) * | 2003-10-23 | 2007-07-24 | Dupont Air Products Nanomaterials Llc | CMP method for copper, tungsten, titanium, polysilicon, and other substrates using organosulfonic acids as oxidizers |
US20050104048A1 (en) * | 2003-11-13 | 2005-05-19 | Thomas Terence M. | Compositions and methods for polishing copper |
KR100583118B1 (en) * | 2003-12-19 | 2006-05-23 | 주식회사 하이닉스반도체 | Method for Forming Capacitor of Semiconductor Device |
US7497967B2 (en) * | 2004-03-24 | 2009-03-03 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Compositions and methods for polishing copper |
US7303993B2 (en) * | 2004-07-01 | 2007-12-04 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Chemical mechanical polishing compositions and methods relating thereto |
US7384871B2 (en) * | 2004-07-01 | 2008-06-10 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Chemical mechanical polishing compositions and methods relating thereto |
CN102585765B (en) * | 2004-07-23 | 2015-01-21 | 日立化成株式会社 | Cmp polishing agent and method for polishing substrate |
US7086935B2 (en) * | 2004-11-24 | 2006-08-08 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Cellulose-containing polishing compositions and methods relating thereto |
US7435356B2 (en) * | 2004-11-24 | 2008-10-14 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Abrasive-free chemical mechanical polishing compositions and methods relating thereto |
US7311856B2 (en) * | 2005-03-30 | 2007-12-25 | Cabot Microelectronics Corporation | Polymeric inhibitors for enhanced planarization |
US7939482B2 (en) * | 2005-05-25 | 2011-05-10 | Freescale Semiconductor, Inc. | Cleaning solution for a semiconductor wafer |
CN1900146B (en) * | 2005-07-21 | 2012-02-29 | 安集微电子(上海)有限公司 | Chemical and mechanical polishing liquid |
WO2007038399A2 (en) * | 2005-09-26 | 2007-04-05 | Cabot Microelectronics Corporation | Metal cations for initiating chemical mechanical polishing |
US20070075042A1 (en) * | 2005-10-05 | 2007-04-05 | Siddiqui Junaid A | Stabilizer-Fenton's reaction metal-vinyl pyridine polymer-surface-modified chemical mechanical planarization composition and associated method |
KR100786949B1 (en) | 2005-12-08 | 2007-12-17 | 주식회사 엘지화학 | Adjuvant capable of controlling a polishing selectivity and chemical mechanical polishing slurry comprising the same |
KR101260597B1 (en) * | 2005-12-27 | 2013-05-06 | 히타치가세이가부시끼가이샤 | Metal polishing liquid and method for polishing film to be polished |
EP1813641B1 (en) * | 2006-01-30 | 2016-12-14 | Imec | A method for improving mechanical properties of polymer particles and its applications |
JP4985409B2 (en) * | 2006-01-31 | 2012-07-25 | 日立化成工業株式会社 | CMP polishing agent for polishing insulating film, polishing method, and semiconductor electronic component polished by the polishing method |
US7824568B2 (en) * | 2006-08-17 | 2010-11-02 | International Business Machines Corporation | Solution for forming polishing slurry, polishing slurry and related methods |
US20100273330A1 (en) * | 2006-08-23 | 2010-10-28 | Citibank N.A. As Collateral Agent | Rinse formulation for use in the manufacture of an integrated circuit |
US7892071B2 (en) * | 2006-09-29 | 2011-02-22 | Depuy Products, Inc. | Orthopaedic component manufacturing method and equipment |
KR101396055B1 (en) * | 2007-07-05 | 2014-05-15 | 히타치가세이가부시끼가이샤 | Polishing liquid for metal film and polishing method |
KR100949250B1 (en) | 2007-10-10 | 2010-03-25 | 제일모직주식회사 | Metal CMP slurry compositions and polishing method using the same |
JP2009123880A (en) | 2007-11-14 | 2009-06-04 | Showa Denko Kk | Polishing composition |
US20090215266A1 (en) * | 2008-02-22 | 2009-08-27 | Thomas Terence M | Polishing Copper-Containing patterned wafers |
WO2009128430A1 (en) | 2008-04-15 | 2009-10-22 | 日立化成工業株式会社 | Polishing solution for metal films and polishing method using the same |
US8540893B2 (en) * | 2008-08-04 | 2013-09-24 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Chemical mechanical polishing composition and methods relating thereto |
CN102245724A (en) * | 2008-12-19 | 2011-11-16 | 安集微电子(上海)有限公司 | Chemical-mechanical polishing liquid |
JP5940270B2 (en) * | 2010-12-09 | 2016-06-29 | 花王株式会社 | Polishing liquid composition |
US8440097B2 (en) | 2011-03-03 | 2013-05-14 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Stable, concentratable, water soluble cellulose free chemical mechanical polishing composition |
US8435896B2 (en) | 2011-03-03 | 2013-05-07 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Stable, concentratable chemical mechanical polishing composition and methods relating thereto |
JP6425303B2 (en) * | 2014-10-27 | 2018-11-21 | 花王株式会社 | Polishing liquid composition |
US10253216B2 (en) | 2016-07-01 | 2019-04-09 | Versum Materials Us, Llc | Additives for barrier chemical mechanical planarization |
US10600655B2 (en) | 2017-08-10 | 2020-03-24 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Chemical mechanical polishing method for tungsten |
CN115011258A (en) * | 2022-07-20 | 2022-09-06 | 黄河三角洲京博化工研究院有限公司 | Double-component polishing solution, preparation method thereof and silicon wafer polishing method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4752628A (en) * | 1987-05-15 | 1988-06-21 | Nalco Chemical Company | Concentrated lapping slurries |
WO1999064527A1 (en) * | 1998-06-10 | 1999-12-16 | Rodel Holdings, Inc. | Composition and method for polishing in metal cmp |
WO2001014496A1 (en) * | 1999-08-24 | 2001-03-01 | Rodel Holdings, Inc. | Compositions for insulator and metal cmp and methods relating thereto |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4017662A (en) * | 1967-11-29 | 1977-04-12 | Rohm And Haas Company | Polishing method |
US4299749A (en) * | 1980-06-30 | 1981-11-10 | Sterling Drug Inc. | Floor coating composition |
US4869934A (en) * | 1988-09-16 | 1989-09-26 | Sterling Drug Inc. | Floor polishing and coating composition |
US5073285A (en) * | 1989-06-12 | 1991-12-17 | Lever Brothers Company, Division Of Conopco, Inc. | Stably suspended organic peroxy bleach in a structured aqueous liquid |
US5391258A (en) | 1993-05-26 | 1995-02-21 | Rodel, Inc. | Compositions and methods for polishing |
US5489233A (en) | 1994-04-08 | 1996-02-06 | Rodel, Inc. | Polishing pads and methods for their use |
US5614444A (en) | 1995-06-06 | 1997-03-25 | Sematech, Inc. | Method of using additives with silica-based slurries to enhance selectivity in metal CMP |
US5932486A (en) | 1996-08-16 | 1999-08-03 | Rodel, Inc. | Apparatus and methods for recirculating chemical-mechanical polishing of semiconductor wafers |
JP3371775B2 (en) | 1997-10-31 | 2003-01-27 | 株式会社日立製作所 | Polishing method |
JPH11162910A (en) | 1997-11-25 | 1999-06-18 | Sumitomo Chem Co Ltd | Abrasive and polishing method for semiconductor device manufacture |
US6432828B2 (en) | 1998-03-18 | 2002-08-13 | Cabot Microelectronics Corporation | Chemical mechanical polishing slurry useful for copper substrates |
CA2342332A1 (en) | 1998-08-31 | 2000-03-09 | Hiroki Terazaki | Abrasive liquid for metal and method for polishing |
JP4095731B2 (en) | 1998-11-09 | 2008-06-04 | 株式会社ルネサステクノロジ | Semiconductor device manufacturing method and semiconductor device |
KR100472882B1 (en) | 1999-01-18 | 2005-03-07 | 가부시끼가이샤 도시바 | Aqueous Dispersion, Chemical Mechanical Polishing Aqueous Dispersion Composition, Wafer Surface Polishing Process and Manufacturing Process of a Semiconductor Apparatus |
JP3941284B2 (en) | 1999-04-13 | 2007-07-04 | 株式会社日立製作所 | Polishing method |
TWI254070B (en) | 1999-08-18 | 2006-05-01 | Jsr Corp | Aqueous dispersion for chemical mechanical polishing |
US6443812B1 (en) | 1999-08-24 | 2002-09-03 | Rodel Holdings Inc. | Compositions for insulator and metal CMP and methods relating thereto |
JP2002050595A (en) | 2000-08-04 | 2002-02-15 | Hitachi Ltd | Polishing method, wiring forming method and method for manufacturing semiconductor device |
US6605537B2 (en) | 2000-10-27 | 2003-08-12 | Rodel Holdings, Inc. | Polishing of metal substrates |
JP3768402B2 (en) | 2000-11-24 | 2006-04-19 | Necエレクトロニクス株式会社 | Chemical mechanical polishing slurry |
US6632259B2 (en) * | 2001-05-18 | 2003-10-14 | Rodel Holdings, Inc. | Chemical mechanical polishing compositions and methods relating thereto |
-
2001
- 2001-05-18 US US09/860,933 patent/US6632259B2/en not_active Expired - Lifetime
-
2002
- 2002-05-17 US US10/150,211 patent/US20030013386A1/en not_active Abandoned
- 2002-05-17 CN CNB028100328A patent/CN1261511C/en not_active Expired - Lifetime
- 2002-05-17 KR KR20037014999A patent/KR20040002972A/en not_active Application Discontinuation
- 2002-05-17 EP EP02736981A patent/EP1399517A2/en not_active Withdrawn
- 2002-05-17 WO PCT/US2002/015825 patent/WO2002094957A2/en not_active Application Discontinuation
- 2002-05-17 TW TW091110370A patent/TWI241328B/en not_active IP Right Cessation
- 2002-05-17 JP JP2002592420A patent/JP2005502188A/en not_active Withdrawn
-
2003
- 2003-09-17 US US10/664,723 patent/US6902590B2/en not_active Expired - Lifetime
-
2005
- 2005-03-10 US US11/077,671 patent/US7300874B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4752628A (en) * | 1987-05-15 | 1988-06-21 | Nalco Chemical Company | Concentrated lapping slurries |
WO1999064527A1 (en) * | 1998-06-10 | 1999-12-16 | Rodel Holdings, Inc. | Composition and method for polishing in metal cmp |
WO2001014496A1 (en) * | 1999-08-24 | 2001-03-01 | Rodel Holdings, Inc. | Compositions for insulator and metal cmp and methods relating thereto |
Also Published As
Publication number | Publication date |
---|---|
US20030013386A1 (en) | 2003-01-16 |
CN1509322A (en) | 2004-06-30 |
EP1399517A2 (en) | 2004-03-24 |
TWI241328B (en) | 2005-10-11 |
US7300874B2 (en) | 2007-11-27 |
CN1261511C (en) | 2006-06-28 |
US20040065020A1 (en) | 2004-04-08 |
US20030032371A1 (en) | 2003-02-13 |
JP2005502188A (en) | 2005-01-20 |
US6632259B2 (en) | 2003-10-14 |
WO2002094957A2 (en) | 2002-11-28 |
US6902590B2 (en) | 2005-06-07 |
US20050159003A1 (en) | 2005-07-21 |
KR20040002972A (en) | 2004-01-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2002094957A3 (en) | Chemical mechanical polishing compositions and methods relating thereto | |
KR101020613B1 (en) | tantalum barrier removal solution | |
US6312486B1 (en) | Slurry with chelating agent for chemical-mechanical polishing of a semiconductor wafer and methods related thereto | |
EP2865727B1 (en) | Barrier chemical mechanical planarisation // polishing composition and method of use thereof | |
US6679928B2 (en) | Polishing composition having a surfactant | |
KR101099721B1 (en) | Modular barrier removal polishing slurry | |
EP2048208A3 (en) | Free radical-forming activator attached to solid and used to enhanced CMP formulations | |
TWI256966B (en) | Chemical mechanical polishing slurry useful for copper substrates | |
WO2004101222A3 (en) | Chemical mechanical polishing compositions for step-ii copper liner and other associated materials and method of using same | |
EP0846742A3 (en) | Chemical mechanical polishing slurry useful for copper substrates | |
KR20060042396A (en) | Compositions and methods for chemical and mechanical polishing silica and silicon nitride | |
EP1936674A3 (en) | Method and slurry for tuning low-k versus copper removal rates during chemical mechanical polishing | |
AU2001271308A1 (en) | Polishing composition for metal cmp | |
WO2004101221A3 (en) | Improved chemical mechanical polishing compositions for copper and associated materials and method of using same | |
WO2006044417A3 (en) | Cmp composition with a polymer additive for polishing noble metals | |
WO2006081149A3 (en) | Novel polishing slurries and abrasive-free solutions having a multifunctional activator | |
WO2000035627A3 (en) | Multi-step chemical mechanical polishing | |
SG157354A1 (en) | Polishing composition and method for high silicon nitride to silicon oxide removal rate ratios | |
KR20100049626A (en) | Aqueous dispersion for chemical mechanical polishing and method for preparing the same, kit for preparing aqueous dispersion for chemical mechanical polishing, and chemical mechanical polishing method for semiconductor device | |
WO2001078116A3 (en) | System for the preferential removal of silicon oxide | |
WO2001041973A3 (en) | Chemical-mechanical polishing method | |
MY143823A (en) | Compositions and methods for cmp of low-k-dielectric materials | |
AU4691800A (en) | Method and system for cleaning a chemical mechanical polishing pad | |
TW200802580A (en) | Polishing slurry for chemical mechanical polishing (CMP) and polishing method | |
SG144048A1 (en) | Compositions for chemical mechanical planarization of copper |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): CN JP KR |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 028100328 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002592420 Country of ref document: JP Ref document number: 1020037014999 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002736981 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2002736981 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2002736981 Country of ref document: EP |