TY - JFULL AU - Hema Sandhya Jagarlamudi and Mousumi Saha and Pavan Kumar Jagarlamudi PY - 2011/1/ TI - Quantum Dot Cellular Automata Based Effective Design of Combinational and Sequential Logical Structures T2 - International Journal of Nuclear and Quantum Engineering SP - 1528 EP - 1533 VL - 5 SN - 1307-6892 UR - https://publications.waset.org/pdf/12355 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 60, 2011 N2 - The use of Quantum dots is a promising emerging Technology for implementing digital system at the nano level. It is effecient for attractive features such as faster speed , smaller size and low power consumption than transistor technology. In this paper, various Combinational and sequential logical structures - HALF ADDER, SR Latch and Flip-Flop, D Flip-Flop preceding NAND, NOR, XOR,XNOR are discussed based on QCA design, with comparatively less number of cells and area. By applying these layouts, the hardware requirements for a QCA design can be reduced. These structures are designed and simulated using QCA Designer Tool. By taking full advantage of the unique features of this technology, we are able to create complete circuits on a single layer of QCA. Such Devices are expected to function with ultra low power Consumption and very high speeds. ER -