Lon, Don't worry about the PCB finish for BGA's. They are pretty robust. We regularly use BGA's on all three of your listed board finishes. Fine pitch, microBGA and the use of a no clean process will determine preferred board finish. Ryan G. > -----Original Message----- > From: Lon Weffers [SMTP:[log in to unmask]] > Sent: Friday, February 04, 2000 7:37 AM > To: [log in to unmask] > Subject: [TN] FW: pcb finish with bga > > -----Original Message----- > From: Lon Weffers [SMTP:[log in to unmask]] > Sent: vrijdag 4 februari 2000 11:19 > To: [log in to unmask] > Subject: pcb finish with bga > > Dear friends, > > We are starting to use bga's on our pcb's. > I was wondering what the usual board finish should be. HAL, or gold or > bare > copper? Ideas and tips for reflow are very welcome, we are new in the bga > business. > > Greetings > Lon Weffers > Matas Electronics Bv > visit us at www.matas.nl > > ############################################################## > 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. > If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or > 847-509-9700 ext.5365 > ############################################################## ############################################################## 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. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################