Can single electron logic microprocessors work at room temperature?

The error rate of single electron logic based on single electron transistors (SETs) at nonzero temperature has been estimated. Similarly to recent microelectronic studies [Phys. Lett. A 305 (2002) 144], the maximal error rate of one bit-flip-error chip-1 year-1 is used as the condition of the error-free performance. The aspects of power dissipation and error-free performance are studied versus the radius of quantum dot (QD). The conclusion is that microprocessors with silicon QDs of less than 1 nm radius can be used at room temperature