An integrated circuit, comprising: a semiconductor substrate, a plurality of last metal conductors disposed above said substrate, a bottom metallic layer disposed on said last metal conductors, a top metallic layer, and an alpha absorber disposed between said bottom and top metallic layers, said alpha...http://www.google.fr/patents/US20020105059?utm_source=gb-gplus-shareBrevet US20020105059 - Alpha particle shield for integrated circuit
Numéro de demande: 09/777,540 Numéro de publication: US 2002/0105059 A1 Date de dépôt: 6 févr. 2001 Brevet délivré: US6531759 ( Date de délivrance 11 mars 2003)