“…In this regard, new materials may cover the followings: carbon nano-tube (CNT) (Iijima, 1991), nano-wire (NW) (Yanson et al, 1998), conducting polymer (Sirringhaus et al 1998), and molecules (Collier et al, 1999). New devices could also be comprised of many active elements, such as tunneling transistors (Auer et al, 2001), spin transistors (Supriyo Datta & Biswajit Das, 1990), molecular transistors (Collier et al, 1999), single electron transistors (SETs) (Fulton & Dolan, 1987) and others. We may be able to extend this to new concepts, varying from nano-scale computing (DeHon, 2003) and FET decoding (Zhong et al, 2003) to lithography-free addressing .…”