Mr
Larry G. Edson
(Consultant)
19/09/2008, 14:15
Oral
1) Circuit boards fail primarily for mechanical and electro-chemical reasons.
2) Failure mechanisms in circuit boards.
a) Vibration (mechanical fatigue).
b) Mechanical shock (high stress).
c) Thermal fatigue (thermally induced fatigue).
d) Humidity effects (diffusion of water vapor).
e) Condensing moisture effects (electromigration and dendritic growth).
3) These failure mechanisms...
