Micro-sectioning (Cross section Test)

The semi or automatic microsection technique is a process and not a test method. Micro-sectioning needs to be viewed as a process with quality criteria as each major step is completed. This procedure specifies the quality criteria that must be met to make microsections that can consistently find the defects (or anomalies) of concern. The specimen is evaluated for quality of the laminate system, plated-through holes (PTHs), the copper foils, plating or coatings, and examination of other areas on the product.

Close‑up view of a micro‑sectioning or polishing machine head pressing multiple sample mounts in a circular holder during laboratory material testing.