Stress and Deflection Analysis of Partially Routed Panels for Depanelization

Deflection and stress in partially routed panels have been studied by the finite element method. Emphasis is placed on the effects of partial routing on the assembly processes for surface mount printed circuit boards. To test the validity of the finite element results, the overall deflection profile of a partially routed panel was measured. The calculated deflection profile agreed with the experimental results. Two different tab configurations have been designed and for each design four connecting tab widths have been analyzed.