(19)

(11)

EP 2 248 187 A2

(12)

(88) Date of publication A3: 26.08.2010 (43) Date of publication: 10.11.2010 Bulletin 2010/45 (21) Application number: 09704680.9 (22) Date of filing: 22.01.2009

(51) International Patent Classification (IPC):  H01L 31/052(2006.01) F24J 2/10(2006.01) (86) International application number: PCT/IB2009/000111 (87) International publication number: WO 2009/093129 (30.07.2009 Gazette 2009/31)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 23.01.2008 IT BO20080041 (71) Applicant: Cpower S.r.l. Ferrara (IT)	(72) Inventor: ANTONINI, Andrea I-48011 Alfonsine (IT) (74) Representative: Jorio, Paolo et al STUDIO TORTA Via Viotti 9 10121 Torino 10121 Torino (IT)