Hi Phil - wow, that would be news to me as we utilize many 1.0mm and 0.8mm BGAs in our avionics (aka IPC Class 3) product designs. Can you detail what specific spacing requirements would be violated in the 6012 specification? Dave Hillman Rockwell Collins [log in to unmask] Phil Bavaro <[log in to unmask]> Sent by: TechNet <[log in to unmask]> 04/11/2012 06:27 PM Please respond to TechNet E-Mail Forum <[log in to unmask]>; Please respond to <[log in to unmask]> To <[log in to unmask]> cc Subject [TN] 1.0 and 0.8 mm Pitch BGAs cannot meet Class 3? I am being told that it is not possible to layout a BGA for IPC-6012 Class 3 if the pitch is 1.0 or 0.8 mm. I am not a board designer but this doesn't sound right to me. I had a lot of experience with BGAs at 0.5 mm pitch but that was always with Class 2 requirements. Is anyone laying out PWBs with 0.8 mm pitch BGAs and still meeting Class 3 for spacing? ------------------------------------------------------------------------------ This message and any attachments are solely for the use of the addressee and may contain L-3 proprietary information that may also be defined as USG export controlled technical data. If you are not the intended recipient, any disclosure, use or distribution of its content is prohibited. Please notify the sender by reply e-mail and immediately delete this message and any attachments. ______________________________________________________________________ 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] ______________________________________________________________________