Hyper Corrosion

Process Verification

Chemical contamination monitoring prevents electrolyte formation during wet etching and wave soldering stages. Hyper corrosion risks rise when rinse tanks retain halide concentrations exceeding strict limits set by board fabricators. Ionic cleanliness tests measure residual salts extracted from finished panels using specialized alcohol and water solutions.

Operators reject batches showing conductivity values above established thresholds to eliminate premature field failures.

Field Reliability

Protective conformal coatings isolate sensitive circuitry from atmospheric moisture and ionic airborne pollutants. Hyper corrosion accelerates inside unsealed enclosures exposed to marine salt spray environments combined with elevated operating temperatures. Accelerated life testing exposes completed circuit assemblies to condensing humidity conditions to simulate decades of environmental stress.

Adequate barrier protection stops aggressive chemical attack entirely.