Design for Reliability of Hybrid Multi-Chip Modules

This technical report discusses the Design-for-Reliability (DfR) framework for hybrid multi-chip modules (MCMs) used in high-reliability electronics. It outlines the evolution of MCMs, emphasizing their critical role in mission-critical systems that require sustained performance in extreme environments. The report details the limitations of traditional qualification methods, particularly in high-temperature scenarios, and introduces a comprehensive DfR approach that integrates mission-profile capture, physics-of-failure modeling, and cumulative stress testing. This framework aims to provide statistically defensible assurance of MCM reliability, addressing the challenges posed by modern applications that demand operation beyond conventional thermal limits. The report also describes the phases of the DfR methodology, including reliability goal specification, risk identification, and quantitative evaluation activities, ensuring that reliability is embedded throughout the product lifecycle. By employing advanced testing methods, the DfR framework seeks to enhance the reliability of MCMs, making them suitable for applications that require uninterrupted operation for decades.