(19)

(11)

EP 2 406 837 A2

(12)

(88) Date of publication A3: 28.04.2011 (43) Date of publication: 18.01.2012 Bulletin 2012/03 (21) Application number: 10713109.6 (22) Date of filing: 11.03.2010

(51) International Patent Classification (IPC):  H01L 35/30(2006.01) F02G 5/02(2006.01) (86) International application number: PCT/DK2010/050058 (87) International publication number: WO 2010/102634 (16.09.2010 Gazette 2010/37)

(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 SM TR (30) Priority: 11.03.2009 DK 200900333 12.03.2009 DK 200900344 (71) Applicant: Alpcon A/S 9220 Aalborg Ø (DK)	(72) Inventor: ENKESHAFI, Ali, Asghar DK-9200 Aalborg SV (DK) (74) Representative: Plougmann & Vingtoft A/S  Sundkrogsgade 9 P.O. Box 831 DK-2100 Copenhagen Ø DK-2100 Copenhagen Ø (DK)