Case 2532 ยท Public preview
Several Marginal Conditions Can Converge into a Power-to-Ground Migration Short
An actuator circuit board suffered destructive damage after a short developed between 12-volt circuitry and ground near a press-fit connector.
Optical microscopySEMEDSMicrosectioningFailed-to-functional comparison
What the evidence preview establishes
An electrochemical-migration short most likely formed between power and ground. Bromine-bearing flux, environmental sodium chloride, inadequate sealing, and press-fit laminate damage all reduced the board's insulation margin.
Why this case matters
Correct interacting weaknesses rather than searching for a single isolated defect: clean activated residue, apply conformal coating after cleaning, improve the enclosure seal, control solder splash, and prevent press-fit laminate damage.
Full evidence reserved for MEMBER and STOREThe complete case includes the evidence sequence, four interpreted figures, alternative explanations, limitations, and practical application guidance.