(19)

(11)

EP 1 631 964 A2

(12)

(88) Date of publication A3: 03.03.2005 (43) Date of publication: 08.03.2006 Bulletin 2006/10 (21) Application number: 04736356.9 (22) Date of filing: 08.06.2004

(51) International Patent Classification (IPC):  G11C 11/22(1968.09) (86) International application number: PCT/JP2004/008288 (87) International publication number: WO 2004/109705 (16.12.2004 Gazette 2004/51)

(84) Designated Contracting States: DE FR GB IE IT (30) Priority: 09.06.2003 JP 2003164141 (71) Applicants: Kabushi Kaisha Toshiba Tokyo 105-8001 (JP) Infineon Technologies AG 81669 München (DE)	(72) Inventors: HOYA, Katsuhiko, c/o Intellectual Property Div. Minato-ku Tokyo 105-8001 (JP) TAKASHIMA, Daisaburo, c/o Intellectual Prop. Div. Minato-ku Tokyo 105-8001 (JP) REHM, Norbert Yokohama-shi Kanagawa-ken (JP) (74) Representative: HOFFMANN EITLE  Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)