A stochastic model to evaluate performance of testing and taping processes on an LSI production system

An automated testing and taping process on a LSI production system is modelled as a variant of M/G/1 finite capacity queue with multiple transactions, where each package receives either a normal service or normal service plus postservice. The system has N spaces for waiting. We successfully define states of system to regard as those of a Markov renewal process even though some time points are not regeneration points. Using the model, we derive properties of stochastic behaviour of the system, in particular, throughput, process of overflows, busy period, and idle period as cost-effective tools for system evaluation.