Hello technetters We have a small problem concerning white residue on the componentside of the boards. After soldering the boards on certain points we detect a small amount of white residue around the tin-leaded joints of an IC. First we thought it was flux, bud it seems to be something else. We detect it only around certain joints of that particullar IC. Is it possible that it has something to do with the leads of the IC? Thanks in advance Lon Weffers Matas Electronics bv De Dieze 16 5684PT Best Http://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 Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################