(19)

(11)

EP 1 476 906 A2

(12)

(88) Date of publication A3: 18.12.2003 (43) Date of publication: 17.11.2004 Bulletin 2004/47 (21) Application number: 02799001.9 (22) Date of filing: 18.09.2002

(51) International Patent Classification (IPC)7: H01L 31/18, H01L 31/032 (86) International application number: PCT/US2002/029684 (87) International publication number: WO 2003/026028 (27.03.2003 Gazette 2003/13)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 20.09.2001 US 957125 20.09.2001 US 957050 20.09.2001 US 957123 20.09.2001 US 957121 20.09.2001 US 957132 20.09.2001 US 957207 (71) Applicant: Heliovolt Corporation Austin, TX 78746-6490 (US)	(72) Inventor: STANBERRY, Billy, J. Austin, TX 78746-2334 (US) (74) Representative: Blatchford, William Michael et al Withers & Rogers,Goldings House,2 Hays Lane London SE1 2HW London SE1 2HW (GB)