Circuitry includes first and second circuits spaced apart by an interconnect region. The interconnect region includes a first interconnect and the second circuit includes a stack of semiconductor layers. The first interconnect extends between the first and second circuits to provide communication therebetween....http://www.google.de/patents/US20080048327?utm_source=gb-gplus-sharePatent US20080048327 - ELECTRONIC CIRCUIT WITH EMBEDDED MEMORY
