RL-TR-93-6, FINAL TECHNICAL REPORT: RELIABILITY ANALYSIS OF SURFACE MOUNT TECHNOLOGY (SMT) (MAR-1993) [DTIC: AD-A267-598]

RL-TR-93-6, FINAL TECHNICAL REPORT: RELIABILITY ANALYSIS OF SURFACE MOUNT TECHNOLOGY (SMT) (MAR-1993) [DTIC: AD-A267-598]., This report indoctrinates the reader with the understanding of what is involved and necessary in designing and assessing the reliability of surface mount products. Deterministic methods were used to identify the primary design and environmental drivers and statistical methods were used to generate a SMT reliability assessment model. Due to the unavailability of field failure data, finite element analyses (FEA) and environmental test data were used to quantify the model parameters. Information obtained during the model development, internal Harris documents, and military and commercial standards were used to generate design, manufactuiing and quality ',uidelines. Finally, reliability testing and its correlation to actual life expectancy is addressed to decide the appropriateness of the of the existing MIL-STD testing requirements and whether these documents need to he modified to correlate to actutal life condition. more accurately.