Yield vs Cost Calculator • The focus of USEA is maximizing process yields. USEA test yields are maximized by strict process controls, strong engineering resources and data analysis tools. • The following program will allow you to determine how process yield contribute to profits.   Price Cost   USEA Vendor X USEA Vendor X Wafer   Wafer Cost ($) Units/Wafer     Die Cost ($)     Sort Cost Per Die($) Yield (%)     Cost Sub-total e-sort ($) Good Units     Assembly   Start Qty     Assembly Cost Per Unit     Assembly Yield (%)     Good Units     Total Assembly Cost Cost Sub Total     Assembly   Start Qty Final Test 1 Cost     Final Test 1 yield (%)     Qty Good     Production Cost per Unit Cost Sub Total         Final Test 1   Start Qty Final Test 2 Cost     Final Test 2 yield (%)     Qty Good     Production Cost per Unit Cost Sub Total         Final Test 2   Start Qty Final Test 3 Cost     Final Test 3 yield (%)     Qty Good     Production Cost per Unit Cost Sub Total         Tape & Reel   Start Qty Cost     Tape and Reel Yield     Qty Out     Cost Sub Total         Total Good Units     ASP       Total Revenue     Production Cost     Shipping Cost     Support Cost     Total Production Cost     Total Cost per Unit       Operational Profit       Profit Per Unit

Ours is better..... 1 . Many Companies focus on the cost per hour for test. 2 . Focus on test cost per hour may result in a slightly lower unit cost test, process yield is sacrificed. 3 . Test cost per hour has no incentive to maximize test yields. 4 . Test contacts degradation is common cause of yield loss. 5 . The corrective action results in significant down time and increased contactor cost.