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(11)

EP 2 140 743 A1

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(43) Date of publication: 06.01.2010 Bulletin 2010/01 (21) Application number: 07776181.5 (22) Date of filing: 26.04.2007

(51) International Patent Classification (IPC):  H05K 1/09(2006.01) H05K 3/40(2006.01) (86) International application number: PCT/US2007/010030 (87) International publication number: WO 2008/133612 (06.11.2008 Gazette 2008/45)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (71) Applicant: E. I. Du Pont de Nemours and Company Wilmington, DE 19898 (US)	(72) Inventor: INABA, Akira Kanagawa 213-0012 (JP) (74) Representative: Towler, Philip Dean  Frank B. Dehn & Co. St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)