Destructive Physical Analysis (DPA) in Semiconductors

In semiconductor failure analysis (FA), investigations typically begin with techniques that preserve the integrity of the sample while allowing analysts to develop initial hypotheses. However, when non-destructive methods cannot resolve structural uncertainty or verify internal construction, destructive physical analysis (DPA) may be required.

Non-destructive approaches provide valuable information but do not always resolve the underlying problem. Internal interfaces may remain inaccessible, and competing failure hypotheses may not be distinguishable through indirect observation.