Thanks Ingemar, I have had to narrow my strategy because, as Peter and some others point to the obvious as X-Ray still not effective as is not AOI - yet. So, the plan now is to use boundary scan to reduce physical test points, and and associated hardware, in conjunction with physical testing with about half the test points required before. This now opens the possibility of providing all points, as 34 mil square pads on 100 mil centers. Looking forward to the days when AOI reaches maturity. Earl --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------