Jack, I just heard that IPC is working on a new calculator. This new calculator will give you three footprint dimensions for the same part. One would be for a HDI design another would be for a design that is not quite as heavily populated as HDI and the last one would be for a design that would have a need for normal footprints. I have no idea when this new calculator will be available, but there working on it. Regards, Ted Tontis --------------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------------