WO2009044566A1 - Film for semiconductor wafer processing - Google Patents

Film for semiconductor wafer processing Download PDF

Info

Publication number
WO2009044566A1
WO2009044566A1 PCT/JP2008/056115 JP2008056115W WO2009044566A1 WO 2009044566 A1 WO2009044566 A1 WO 2009044566A1 JP 2008056115 W JP2008056115 W JP 2008056115W WO 2009044566 A1 WO2009044566 A1 WO 2009044566A1
Authority
WO
WIPO (PCT)
Prior art keywords
semiconductor wafer
film
wafer processing
adhered
processing
Prior art date
Application number
PCT/JP2008/056115
Other languages
French (fr)
Japanese (ja)
Inventor
Yosuke Okawara
Hiromitsu Maruyama
Yasumasa Morishima
Shinichi Ishiwata
Original Assignee
The Furukawa Electric Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Furukawa Electric Co., Ltd. filed Critical The Furukawa Electric Co., Ltd.
Publication of WO2009044566A1 publication Critical patent/WO2009044566A1/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus 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
    • H01L21/683Apparatus 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 for supporting or gripping
    • H01L21/6835Apparatus 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 for supporting or gripping using temporarily an auxiliary support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus 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
    • H01L21/683Apparatus 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 for supporting or gripping
    • H01L21/6835Apparatus 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 for supporting or gripping using temporarily an auxiliary support
    • H01L21/6836Wafer tapes, e.g. grinding or dicing support tapes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L24/26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L24/27Manufacturing methods
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L24/26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L24/28Structure, shape, material or disposition of the layer connectors prior to the connecting process
    • H01L24/29Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L24/83Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus 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
    • H01L21/67005Apparatus not specifically provided for elsewhere
    • H01L21/67011Apparatus for manufacture or treatment
    • H01L21/67132Apparatus for placing on an insulating substrate, e.g. tape
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2221/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
    • H01L2221/67Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
    • H01L2221/683Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
    • H01L2221/68304Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
    • H01L2221/68327Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used during dicing or grinding
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2221/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
    • H01L2221/67Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
    • H01L2221/683Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
    • H01L2221/68304Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
    • H01L2221/68327Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used during dicing or grinding
    • H01L2221/68336Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used during dicing or grinding involving stretching of the auxiliary support post dicing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L2224/27Manufacturing methods
    • H01L2224/274Manufacturing methods by blanket deposition of the material of the layer connector
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L2224/28Structure, shape, material or disposition of the layer connectors prior to the connecting process
    • H01L2224/29Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
    • H01L2224/29001Core members of the layer connector
    • H01L2224/29099Material
    • H01L2224/2919Material with a principal constituent of the material being a polymer, e.g. polyester, phenolic based polymer, epoxy
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/83Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
    • H01L2224/8319Arrangement of the layer connectors prior to mounting
    • H01L2224/83191Arrangement of the layer connectors prior to mounting wherein the layer connectors are disposed only on the semiconductor or solid-state body
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/83Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
    • H01L2224/838Bonding techniques
    • H01L2224/8385Bonding techniques using a polymer adhesive, e.g. an adhesive based on silicone, epoxy, polyimide, polyester
    • H01L2224/83855Hardening the adhesive by curing, i.e. thermosetting
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01004Beryllium [Be]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01005Boron [B]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01006Carbon [C]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01019Potassium [K]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01027Cobalt [Co]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01033Arsenic [As]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01074Tungsten [W]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01082Lead [Pb]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/06Polymers
    • H01L2924/0665Epoxy resin
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/06Polymers
    • H01L2924/078Adhesive characteristics other than chemical
    • H01L2924/07802Adhesive characteristics other than chemical not being an ohmic electrical conductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Adhesive Tapes (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Die Bonding (AREA)
  • Dicing (AREA)

Abstract

Disclosed is a film (10) for semiconductor wafer processing, which is a processing film of a multilayer structure comprising a generally circular adhesive film (11) to be cut into chip-sized pieces together with a semiconductor wafer (W) by being adhered to the semiconductor wafer (W) and expanded in the adhered state, and a generally circular adhesive tape (12) bonded to the other side of the adhesive film (11) which is the side opposite to the one adhered to the semiconductor wafer (W). The ratio of the diameter of the adhesive film (11) relative to that of the adhesive tape (12) is within the range of 0.815-1.
PCT/JP2008/056115 2007-10-04 2008-03-28 Film for semiconductor wafer processing WO2009044566A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-260829 2007-10-04
JP2007260829A JP2009094127A (en) 2007-10-04 2007-10-04 Film for processing semiconductor wafer

Publications (1)

Publication Number Publication Date
WO2009044566A1 true WO2009044566A1 (en) 2009-04-09

Family

ID=40525998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/056115 WO2009044566A1 (en) 2007-10-04 2008-03-28 Film for semiconductor wafer processing

Country Status (2)

Country Link
JP (1) JP2009094127A (en)
WO (1) WO2009044566A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108735650A (en) * 2017-04-17 2018-11-02 日东电工株式会社 Cut die bonding film
CN109216211A (en) * 2017-07-04 2019-01-15 日东电工株式会社 Cutting belt, cutting die bonding film and manufacturing method for semiconductor device
CN111524848A (en) * 2019-02-01 2020-08-11 相丰科技股份有限公司 Stretched film expanding method and film expander

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010287848A (en) * 2009-06-15 2010-12-24 Sekisui Chem Co Ltd Dicing/die bonding tape and method of manufacturing semiconductor chip
KR101521727B1 (en) 2010-07-13 2015-05-19 히타치가세이가부시끼가이샤 Dicing/die bonding integral film, dicing/die bonding integral film manufacturing method, and semiconductor chip manufacturing method
JP2012079936A (en) * 2010-10-01 2012-04-19 Nitto Denko Corp Dicing, die-bonding film and method for manufacturing semiconductor device
JP5645593B2 (en) * 2010-10-21 2014-12-24 株式会社ディスコ Wafer division method
JP5908543B2 (en) * 2014-08-07 2016-04-26 日東電工株式会社 Manufacturing method of semiconductor device
JP6959874B2 (en) * 2017-04-17 2021-11-05 日東電工株式会社 Dicing die bond film
JP6966214B2 (en) * 2017-04-17 2021-11-10 日東電工株式会社 Dicing die bond film
WO2024084863A1 (en) * 2022-10-21 2024-04-25 タキロンシーアイ株式会社 Base film for semiconductor manufacturing tape

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005276971A (en) * 2004-03-24 2005-10-06 Sumitomo Bakelite Co Ltd Adhesive film for semiconductor with dicing sheet function, manufacturing method of semiconductor device using the same, and semiconductor device using the same
JP2007053325A (en) * 2005-07-20 2007-03-01 Furukawa Electric Co Ltd:The Dicing die bond tape and dicing tape
JP2007288170A (en) * 2006-03-20 2007-11-01 Hitachi Chem Co Ltd Die-bond dicing sheet

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4770126B2 (en) * 2003-06-06 2011-09-14 日立化成工業株式会社 Adhesive sheet
JP2007019151A (en) * 2005-07-06 2007-01-25 Furukawa Electric Co Ltd:The Tape for processing wafer and method of manufacturing chip using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005276971A (en) * 2004-03-24 2005-10-06 Sumitomo Bakelite Co Ltd Adhesive film for semiconductor with dicing sheet function, manufacturing method of semiconductor device using the same, and semiconductor device using the same
JP2007053325A (en) * 2005-07-20 2007-03-01 Furukawa Electric Co Ltd:The Dicing die bond tape and dicing tape
JP2007288170A (en) * 2006-03-20 2007-11-01 Hitachi Chem Co Ltd Die-bond dicing sheet

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108735650A (en) * 2017-04-17 2018-11-02 日东电工株式会社 Cut die bonding film
CN108735650B (en) * 2017-04-17 2023-08-04 日东电工株式会社 Dicing die bonding film
CN109216211A (en) * 2017-07-04 2019-01-15 日东电工株式会社 Cutting belt, cutting die bonding film and manufacturing method for semiconductor device
CN109216211B (en) * 2017-07-04 2023-10-13 日东电工株式会社 Dicing tape, dicing die bonding film, and method for manufacturing semiconductor device
CN111524848A (en) * 2019-02-01 2020-08-11 相丰科技股份有限公司 Stretched film expanding method and film expander

Also Published As

Publication number Publication date
JP2009094127A (en) 2009-04-30

Similar Documents

Publication Publication Date Title
WO2009044566A1 (en) Film for semiconductor wafer processing
WO2011063089A3 (en) Surface-modified adhesives
WO2012040075A3 (en) Non-planar device having uniaxially strained fin and method of making same
EP2193176A4 (en) Adhesive film, dicing die bonding film and semiconductor device using the same
WO2011112387A3 (en) Reconfigurable multilayer laminates and methods
WO2012078249A3 (en) High capacity easy release extended use adhesive devices
EP2200075A4 (en) Method for producing semiconductor chip with adhesive film, adhesive film for semiconductor used in the method, and method for producing semiconductor device
EP1719809A3 (en) Pressure sensitive adhesive (PSA) laminates
WO2009049651A8 (en) An adhesive tape
WO2010030459A3 (en) Substrate bonding with bonding material having rare earth metal
WO2008024739A3 (en) Elastic composite
WO2010022154A3 (en) Release materials
WO2009086056A3 (en) Multilayer flashing tape
WO2007073520A3 (en) Polymer interlayers comprising ethylene-vinyl acetate copolymer
WO2011113008A3 (en) Multilayer film for photovoltaic applications
WO2007011613A3 (en) Method of protecting a bond layer in a substrate support adapted for use in a plasma processing system
WO2007050654A3 (en) Protective films and pressure sensitive adhesives
WO2009078221A1 (en) Dicing sheet, method for manufacturing dicing sheet and method for manufacturing electronic component
EP1757442A3 (en) Articles comprising nanoparticles
WO2006108053A3 (en) Diffusion delivery systems and methods of fabrication
EP1847277A4 (en) Sheet-shaped composition utilizing amnion and method of preparing the same
WO2005101465A3 (en) Method and system for lattice space engineering
WO2009131839A3 (en) Method of making adhesive article
WO2008132852A1 (en) Dicing/die bonding tape and method for manufacturing semiconductor chip
MY145363A (en) Adhesive film and method for manufacturing semiconductor device using same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08739233

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08739233

Country of ref document: EP

Kind code of ref document: A1