Scrubbing away transients and jiggling around the permanent: long survival of FPGA systems through evolutionary self-repair

The jiggling architecture extending TMR+scrubbing is shown to mitigate FPGA transient and permanent faults using low overhead. Mission operation is never interrupted. The repair circuitry is sufficiently small that a pair could mutually repair each other. A minimal evolutionary algorithm is used during permanent fault self-repair. Reliability analysis of the studied case shows the system has a 0.99 probability of surviving 17 times the mean time to local permanent fault arrival. Such a system would be 0.99 probable to survive 100 years with one fault every 6 years.