Fracture
Vibration-Fatigue Fracture
A lead-to-solder interface fracture revealed after metallurgical etch treatment, useful for distinguishing fatigue from poor solder-process execution.
Interpretation
Why this image matters
This is a useful reference image for fatigue because the fracture location is specific and the report context ruled out solder-process or component-lead quality as the primary cause.
The report concluded that the failure was due to vibration fatigue and that elevated vibration or resonance during testing was the likely driver.
That makes the image especially helpful when someone is trying to separate a true service- or test-induced fatigue mechanism from a workmanship explanation.
Best comparison value
- Discussing vibration-induced solder-joint fatigue
- Separating fatigue from solder workmanship problems
- Teaching interface-specific fracture location