A 3D universal structure based on molecular-QCA and CNT technologies

This paper presents a novel method for design and implementation of three dimensional (3D) two-layer devices with 1/0 logic values. This method uses carbon nanotube (CNT) technology as well as the molecular quantum cellular automata (MQCA) technology on a graphene substrate. The most significant characteristic of the proposed design, which makes the design unique, is the capability of generating functions in 3D; the proposed method would allow implementation of the designs in a single layer which significantly impacts on reducing the chip area and also greatly facilitates the overall synthesis of the design including placement, routing and reducing the critical path length.