Electronics Forum | Mon Apr 01 10:24:29 EDT 2013 | emeto
First check the profile. I would go with linear profile and smoother increase of temperature. Usually you will get tombstones when you have too aggressive profile. My next step will be to redesign the stencil.
Electronics Forum | Fri Mar 22 18:16:44 EDT 2013 | vpham
We are trying to use this high-temp solder paste due to a very special process, but we run into tombstones on chip caps, 0402 and 0603. We don't have this problem if we use regular SAC305 solder paste. If you have experience with this type of solde
Electronics Forum | Mon Apr 01 17:20:45 EDT 2013 | davef
In thinking about troubleshooting tombstoning {TS} defects, seek balance: * Pads the same size * Same amount of paste on each pad * Component placed with the same amount of contact on each pad * Heating the same on each pad, no via connection to a gr
1 |