n the past, the cost of doing PCB rework was difficult to track since labor, equipment and WIP in the rework process were not costly and could be "swept under the table". With today's new and complex packages, rework has taken on a completely new meaning. The equipment, training and engineering support required is costing electronic assemblers millions, not to mention the damage/scrap that is being generated. Additionally, the "Time To Market" factor is costly by keeping a large amount of boards in work-in-progress to be reworked, unable to reach final markets. This is especially true in the communications, computer and telecom sectors where product life cycles are short. Successful companies are beginning to realize that the high cost of rework can be kept in check by outsourcing some of their rework tasks.