Hi Craig! One of the downsides of now having access to Xray inspection technology is that we can see many "things" we never could before - which now causes the question "is that bad?". There is currently no plated thru hole void criteria in the IPC JSTD 001 specification. I would recommend that an assessment of the assembly be initiated. Pulling and inspecting a number of assemblies that either have been in the field or have passed all of the qualification tests will demonstrate what level of voids typically exist and if that level of voiding is a reliability issue. The presence of voids is not necessarily an indication of a reliability issue. Good Luck. Dave Hillman Rockwell Collins [log in to unmask] Craig Sullivan <[log in to unmask]> Sent by: TechNet <[log in to unmask]> 05/16/2012 07:14 AM Please respond to TechNet E-Mail Forum <[log in to unmask]>; Please respond to Craig Sullivan <[log in to unmask]> To <[log in to unmask]> cc Subject [TN] Through hole barrel voids Hi everyone, We have a certain board with several through hole connectors. The customer has provided us x ray images showing voiding in the barrels. Fillets on both sides are acceptable, and the solderability tests are ok. This seems to be isolated to this board because random sampling on other boards shows virtually no voiding. The only voiding "criteria" I can find is related to BGAs. Is there any published criteria / reference material for this type of defect? Thank you, Craig Sullivan Manufacturing Engineer MPL Incorporated P: 607.266.0480 F: 607.266.0482 <mailto:[log in to unmask]> [log in to unmask] P Please consider the environment before printing this e-mail. ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________