Acoustic Micro Imaging of Large Objects Available to Purchase

Acoustic micro imaging is widely used for inspecting IC packages, but readily adapts for the detection of defects in parts and assemblies up to 1 m or more on a side. This article describes a typical imaging setup consisting of a scanning acoustic microscope and water tank and presents examples in which it was used to detect delaminations in solar panels and clogs in brazed aluminum-copper cooling-ring assemblies. It also explains how to deal with issues that arise when scanning large-area parts.