Frequency Effect on SEU of D Flip-Flop
At present, the research on the radiation-harden ability is the hot spot in the field of aerospace devices. In the paper, one commercial D flip-flop chain and one radiation-harden D flip-flop chain are chosen to be tested on the five conditions of different work frequency in the range of 100k~100M. The test would help us to study the frequency effect on SEE. The result shows that when the work frequency increases 103 times, the upset threshold of commercial D flip-flop chain is almost unchanged, but the saturation cross section of the single event upset (SEU) increases about 7.13 times. Compared with radiation-harden D flip-flop chain, the reinforced chain has higher upset threshold, lower upset saturation cross section, and the saturation cross section increases about 3.71 times when the work frequency increases 103 times.
P. Dong et al., "Frequency Effect on SEU of D Flip-Flop", Applied Mechanics and Materials, Vols. 110-116, pp. 3132-3137, 2012