Evaluation of the Thor Microprocessor Using Scan-chain-Based and Simulation- Based Fault-Injection

These two categories complement each other as they are used in different phases of the design process. The advantage of simulation-based fault injection is that it can be employed early in the design, which facilitates early detection of design faults, which thus reduces the cost for correcting such faults. It also provides a high degree of controllability and observability. The main drawback to simulation-based fault injection is the time overhead involved in simulations, which puts practical limitations on the amount hardware and system activity that can be simulated.