Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


De-wetting

Views: 947

#55709

De-wetting | 28 July, 2008

What could be the main reasons for De-wetting in reflow process. Can anybody answer

reply »

#55710

De-wetting | 28 July, 2008

> What could be the main reasons for De-wetting in > reflow process. Can anybody answer

Normally it is a contaminated surface finish.

reply »

#55715

De-wetting | 28 July, 2008

Search the fine SMTnet Achives for background discussion on dewetting, like: http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=12840&#Message54734

reply »

#55716

De-wetting | 28 July, 2008

Iagree with Matt, normally caused by pad surface contamination. Out of curiosity, what is the PCB metallization?

reply »

SMT Equipment

PCB machines