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

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Does IPC definition for "QFN Void Ration" ?

Views: 2207

#72549

Does IPC definition for "QFN Void Ration" ? | 10 August, 2014

Does IPC definition for "QFN Void Ration" ? Like IPC 7095 susgestion the BGA Void ratio.

reply »

#72550

Does IPC definition for | 11 August, 2014

there is no clear percentage for the total voiding, but I know that single voiding shouldn't cover two via holes(defect)

reply »

#72553

Does IPC definition for | 11 August, 2014

You mean that is void size or area can't cover via hole?

reply »

#72555

Does IPC definition for | 12 August, 2014

This is not desirable

Attachments:

reply »

PCB Soldering Tools

BGA Rework Services