Case 2542 ยท Public preview
Output Faults Can Cascade Through Multiple Nodes Inside an Operational Amplifier
Three dual operational amplifiers showed abnormal behavior at one or both outputs, with ground or supply damage in two devices.
External optical examinationElectrical continuity testingChemical decapsulationOptical microscopyBackscattered-electron SEM
What the evidence preview establishes
All three devices failed from electrical overstress at one or both outputs. Output-to-supply shorting and excessive current were most likely, although a high-voltage transient remained possible.
Why this case matters
Separate the initiating output fault from secondary current damage. Continuity results, die-level damage, and a fused bond wire can reveal how overstress cascaded through power and ground nodes.
Full evidence reserved for MEMBER and STOREThe complete case includes the evidence sequence, four interpreted figures, alternative explanations, limitations, and practical application guidance.