PWB failures are costly because they are often apparent only after value is added after assembly, or after the hardware is fielded. This document discusses several approaches that can assure reliability of PWB's before problems occur:
Failure Analysis of PCBAs.
SEM Lab, Inc. provides PWB design and procurement support services aimed at closing the gap between specification requirements and performance objectives. These services include reliability modeling, power cycle testing, and enhanced coupon analysis.
The following is a document which provides detailed information about our PWB design and support services:
PWB Design and Support Services (pdf file).