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EP 1 743 374 A1

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(43) Date of publication: 17.01.2007 Bulletin 2007/03 (21) Application number: 05718757.7 (22) Date of filing: 19.04.2005

(51) International Patent Classification (IPC):  H01L 27/118(2006.01) (86) International application number: PCT/IB2005/051268 (87) International publication number: WO 2005/104233 (03.11.2005 Gazette 2005/44)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 27.04.2004 EP 04101764 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)

(72) Inventors: PINEDA DE GYVEZ, Jose, D., J. NL-5656 AA Eindhoven (NL) PESSOLANO, Francesco NL-5656 AA Eindhoven (NL) RAO, Kiran, B., R. NL-5656 AA Eindhoven (NL) MEIJER, Rinze, I., M., P. NL-5656 AA Eindhoven (NL) RIUS VAZQUEZ, Josep NL-5656 AA Eindhoven (NL) (74) Representative: Pennings, Johannes et al NXP Semiconductors Intellectual Property Department High Tech Campus 60 5656 AG Eindhoven 5656 AG Eindhoven (NL)