Darrel: HASL on 200 mil thick boards is in my view asking for trouble. I would suggest alternatives to HASL at the very least. If I understand correctly, are you having your press-fit holes plug with solder due to the HASL process? Charlie --- Original Message ----- From: Darrel Therriault <[log in to unmask]> To: <[log in to unmask]> Sent: Wednesday, March 29, 2000 7:12 PM Subject: [TN] B/P Yields > Technetters/Fabricators, > > My supplier is having a problem with yield on our backplane (~.200", > SMOBC/HASL). It seems to be centering around > hole plugging from HASL. FHS are .024", .028", .032" for both pressfit and > pth connectors. Is this a typical problem for > these requirements?? > > If so, what are other finishes to consider to achieve higher yields but not > introduce large cost adders?? > > Comments and suggestions appreciated. > > Tks........DT > > ############################################################## > 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 Keach Sasamori at [log in to unmask] or > 847-509-9700 ext.5315 > ############################################################## > ############################################################## 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 Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################