“…With regards to the flow charts in Fig. 1, test cost reduction efforts typically fall into three categories [9]: * "Test faster" -increased equipment throughput, operational efficiency (technicians, management, process engineers), ATE test program improvements * "Test earlier" -early identification of faulty devices to prevent incurrence of packaging and additional test cost from further processing * "Test less" -removal of redundant or non-critical tests based on statistical correlations with existing data (i.e. final test vs. wafer test), sampling plan reduction [4,10].…”