Covered in this paper are four of the many tasks which make up an in-house process control program. These tasks have special significance in their high payoff in product integrity. Reliability requirements are used to develop quality requirements for process control and a simple method of analysis of in-process data is described. This Reject Pattern Analysis relates the cost of failure to the cost of repair. Data is also presented to prove the need for product burn-in or screening. Both industry and government should take forthright action to more uniformly implement these improvements.
