TWEPP-08 Topical Workshop on Electronics for Particle Physics

Session

TUTORIAL - Designing Printed Circuit Boards Not To Fail

TUT

19 Sept 2008, 14:15

Naxos - GREECE

154. Designing Printed Circuit Boards Not To Fail (1)

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...