Ioan, IPA is OK to use to clean solder paste off OSP coated boards. We use it all the time. HOWEVER, the IPA does remove the OSP coating; so the boards must be immediately returned to the production line and built. Don't clean them and then let them sit for a while. Good Luck Ryan Grant MCMS Inc. > -----Original Message----- > From: Tempea, Ioan [SMTP:[log in to unmask]] > Sent: Thursday, May 11, 2000 6:19 AM > To: [log in to unmask] > Subject: [TN] More OSP > > Thanks for the feedback. > > Guess what: yesterday I checked Circuits Assembly and there it was, an > article on OSPs by a guy called Michael Carano (any relationship with my > contributor?). OK, it covers mostly the PCB fab part, but it gave me an > idea > of what this is and that, once again Technet proves to be an impressive > resource of knowledge. > > Now, since I have more questions, back to business: > - are OSP sensitive to hand touch? Will the skin oils degrade the coating, > or the boards can be handled like HASL ones? > - as some qualified oppinion reached me, misprinting is bad. If it > happens, > what to use for paste removal and how to do it? Looks like the IPA will > damage the OSP and IPA is what we are currently using. > - what coating thickness should I specify to make sure the board will > easily > take 2 reflows plus 2 selective soldering cycles? > - where could I find in depth resources on OSP? > > Best to all, > Ioan > > ############################################################## > 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 ##############################################################