Fault injection boundary scan design for verification of fault tolerant systems

In this paper, we propose a design technique called the Fault Injection Boundary Scan (FIBS) for fault injection that is much more efficient than the traditional hardwired pin-level fault injection. The FIBS augments the boundary scan design to facilitate the injection of faults to the input and output pins of a VLSI chip. In addition to the capabilities of a conventional boundary scan design, the FIBS can interpret the test vector contained in the boundary scan cells as markers for fault-injected pins during fault injection. The compatibility of the FIBS with the boundary scan also promises relatively small overhead