Thank You ALL for your excellent suggestions. I've forwarded the suggestions to the AE driving this. We just havn't run into anything like this before and didn't have a logical direction on what to follow next.

We have sent 2 used pcbs (one good [vendor A], one bad [vendor B]) and one unused [vendor A] out for full FA.

They'll be inspecting, probing, measuring, washing and 3D xray glossy pictures [with circles and arrows & a paragraph on back of each one, depicting the scene of the crime :)  ]


We're leaning towards inadequate washing, (Indium solder paste) and cookie-cutter oven profile.  I'll share the results once it's all been finalized.


SIEMENS
Michael Kuczynski       Healthcare Diagnostics Inc.
Product Eng. II CID     511 Benedict Ave.
914-524-3118 (Ph)       Tarrytown, NY 10591
914-524-3322 (Fax)      Mail Stop P25-1-C
[log in to unmask]


This message and any attachments are solely for the use of intended recipients. The information contained herein may include trade secrets, protected health or personal information, privileged or otherwise confidential information. Unauthorized review, forwarding, printing, copying, distributing, or using such information is strictly prohibited and may be unlawful. If you are not an intended recipient, you are hereby notified that you received this email in error, and that any review, dissemination, distribution or copying of this email and any attachment is strictly prohibited. If you have received this email in error, please contact the sender and delete the message and any attachment from your system. Thank you for your cooperation

______________________________________________________________________
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] 
______________________________________________________________________