I'm wondering if anyone can assist us or offer any advice to deal with our little dilemma. Reworking BGA's is fairly new process for us. I'm attempting to rework a 313 contact plastic BGA on a 10 layer board. I end up having either cold solder or shorts between contacts. We are using a SNIPER SMD-7007 rework station at 375 F degrees. We have used the same heat profile our other ceramic BGA's without having any problems.. Any comments would be greatly appreciated. Regards, Nick D'Onofrio Quality Assurance