Correlation of analytical and experimental approaches to determine thermally induced PWB warpage

Abstract
Thermomechanical design effects in the printed wiring board (PWB) design process are considered, In particular, a research project for developing advanced finite-element method (FEM)-oriented capabilities to simulate thermally induced PWB warpage is reported. The FE analysis results are validated by correlating them with measurements obtained from a separate experimental approach using the shadow Moire method