Sounds like amoung other things you have a solder fluxer problem, I.E you aren't getting any because the nozzle is clogged, not moving and/or maybe the the fluxer was not purged when the solderwave process changed from aqueous to no-clean or vice versa and you have mixed fluxes. Dorothy > ---------- > From: Kathy Bergman[SMTP:[log in to unmask]] > Reply To: TechNet E-Mail Forum.;Kathy Bergman > Sent: Friday, August 10, 2001 10:59 AM > To: [log in to unmask] > Subject: Solder conditions > > I am looking to get some help in identifying the causes of certain post > wave > solder conditions. In particular, a "cracked ice" effect in which the very > surface of the solder looks like a thin layer of it has been cracked in > the > way that ice would crack. Another one is lumpy solder, as if the solder > had > dirt in it. (I know it doesn't). I am a board manufacturer with just a > minimum of assembly knowledge. > I am unable to post a good picture of the conditions at this time. I > am wondering if there are some on line resources I can tap into, to see > some > visual examples of these and other conditions. > Also, what would be a normal wave profile for a board such as this: .093 > thick FR4, through hole technology, approx. 6x11, .025 to .195 sized > holes, > HASL finish. Please include any prebake information. > I apprectiate in advance any help I can get. > Kathy Bergman > > -------------------------------------------------------------------------- > ------- > Technet Mail List provided as a free service by IPC using LISTSERV 1.8d > To unsubscribe, send a message to [log in to unmask] with following text in > the BODY (NOT the subject field): SIGNOFF Technet > To temporarily halt delivery of Technet send the following message: SET > Technet NOMAIL > Search previous postings at: www.ipc.org > On-Line Resources & Databases > > E-mail Archives > Please visit IPC web site (http://www.ipc.org/html/forum.htm) for > additional > information, or 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 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or 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 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------