I like the (fresh)idea. but have not seen anyone using that. May be the blowing air can disturb the solder while it is solidifying and leave its marks(footprints-duckpads). May be this can create mess of solder balls all around? May be this can migrate briges instead of complete removal.?Air blow holes /pinholes ?? Most people have sorted the solder bridging problem by matching solder mask, flux and wave solder parameters. Solder bridge can be due to design factors- vias too close to pads or lead length or lead crimping problem. I would like to have more info on this as we also do find this problem. ashok dhawan [log in to unmask] ---------- From: Tony Stewart To: [log in to unmask] Subject: Hot Air Knife after solder pot?? Anyone use this? Date: Friday, June 06, 1997 7:45PM I would like to retrofit a hot-air knife in our waves after wave reflow to reduce bridge opportunities on designs that are not optimized. We use some Centruy 2000s and SOLTEC waves. Tony Eng Mgr C-MAC Electronic Systems Inc [[ ATT04677.htm : 2586 in ATT04677.htm ]] <!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML 3.2//EN"> <HTML> <HEAD> <META content=text/html;charset=iso-8859-1 http-equiv=Content-Type> <META content='"Trident 4.71.0544.0"' name=GENERATOR> </HEAD> <BODY> <P><FONT face=Arial size=2>I would like to retrofit a hot-air knife in our waves after wave reflow to reduce bridge opportunities on designs that are not optimized.</FONT> <P><FONT face=Arial size=2>We use some Centruy 2000s and SOLTEC waves.</FONT> <P><FONT face=Arial size=2></FONT> <P><FONT face=Arial size=2>Tony</FONT> <P><FONT face=Arial size=2>Eng Mgr</FONT> <P><FONT face=Arial size=2></FONT><FONT face=Arial size=2>C-MAC Electronic Systems Inc</FONT></P> </BODY></HTML> *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************