Influence of structure of 2 dimensional 2 dot 1 electron QCA cells in design of a pipelined subtractor

• Published in: Microsystem technologies : sensors, actuators, systems integration Vol. 28; no. 2; pp. 467 - 475
• Main Authors: Ghosh, Mili, Mukhopadhyay, Debarka, Dutta, Paramartha
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2022
• Subjects: Electronics and Microelectronics; Engineering; Instrumentation; Mechanical Engineering; Nanotechnology; Technical Paper
• ISSN: 0946-7076; 1432-1858
• DOI: 10.1007/s00542-018-3826-1

Quantum dot cellular automata i.e. QCA is risen as a result of tremendous examination made by scientists to discover a productive nanoscale substitution of CMOS technology. The nanoscale execution of CMOS additionally experiences high power dispersal. In this present article a thorough study has been made to discuss the benefits of square sturctured 2 dot 1 electron (2:1) QCA cell over the conventional rectangular cell. As a contextual investigation, a half subtractor and in addition a full subtractor has been proposed utilizing 2:1 QCA and an examination has been done concerning the cell structure. The plan of the half subtractor comprises of just 25 many number of 2:1 QCA cells. Then again, the full subtractor configuration contains 54 many number of cells. Utilizing this outline approach, we have accomplished upto 67% and 63% of effectiveness as for the cell number over the current half and full subtractor cell usage, utilizing 4 dot 2 electron (4:2) QCA separately. A pipelined subtractor architecture has also been developed using the proposed full subtractor layout as basic building block.