Abstract
This paper reviews several full adder (FA) designs in single electron technology (SET). In addition to the structure and size already reported for these SET FAs, this paper provides a quantitative and qualitative comparison in terms of delay, power dissipation, and sensitivity to (process) variations - for the first time. This can allow for a better understanding of the advantages and disadvantages of each solution. A new SET FA design, based on capacitive SET threshold logic gates, is described and compared with the other SET FAs.
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