lang, we are also in similar situation and like to have info on these . So, technetts--shower info on this topic . We need your help. thanks in advance to all who will respond. > ---------- > From: Lang, Michael[SMTP:[log in to unmask]] > Sent: September 26, 1997 12:29 PM > To: [log in to unmask] > Subject: [TECHNET] microBGA's and CSP's > > Has anyone out there done any work with microBGA's? Specifically, I > am > looking for information or discussions on: > > > 1) Stencil sizes and apertures. > > > 2) Microvias... The good, the bad, and the ugly > > > 3) Routing out on the PCB... What are the limitations > > > 4) PCB design for uBGAs... The laminates, thicknesses, technology > (deposition or etch), pad design, etc. > > > 5) Co-mingling uBGA's with 0.050" or 0.025" parts... > > > 6) To clean, or not to clean... > > > 7) X-ray requirements > > > > I wish to start an evaluation on these parts and would like to find a > good > starting point... > > > Thanks, > > Michael Lang > ITT Avionics > [log in to unmask] > (201) 284-2917 > > ############################################################## > TechNet Mail List provided as a free service by IPC using LISTSERV > 1.8c > ############################################################## > To subscribe/unsubscribe, send a message to [log in to unmask] with > following text in the body: > To subscribe: SUBSCRIBE TECHNET <your full name> > To unsubscribe: SIGNOFF TECHNET > ############################################################## > Please visit IPC web site (http://www.ipc.org/html/forum.htm) for > additional information. > For the technical support contact Dmitriy Sklyar at [log in to unmask] or > 847-509-9700 ext.311 > ############################################################## > ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ##############################################################