Electronics Forum | Tue Sep 08 15:11:26 EDT 1998 | Mike Demos
Rich: In my experience, I have seen three cases of SMT Capacitors cracking: 1. Due to thermal shock when entering the wave solder. Note that these were 1210 package sizes on the wave solder side of the boards. We were able to trace this back to th
Electronics Forum | Mon Aug 17 02:50:44 EDT 1998 | Bob Willis
| Have an SRT w/preheat, 18 layer board all copper, 456 BGA needs to be removed and replaced. The manufacturer is Chip Express and during reflow it warps up or down. Causing either opens or shorts on the corners. I was using gel flux with multiple
Industry News | 2018-10-18 08:14:11.0
How to Prevent the Tombstone and Open Defects during the SMT Reflow Process
Industry News | 2018-10-18 08:59:34.0
PRINCIPLE OF SURFACE MOUNT PROCESS(SMT PROCESS)
crack of solder joint as it'll pass the regular tes
SMTnet Express, June 19, 2014, Subscribers: 22851, Members: Companies: 13906, Users: 36363 Anisotropic grain growth and crack propagation in eutectic microstructure under cyclic temperature annealing in flip-chip SnPb composite solder joints Y
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(usually no more than 2ºC/second - check solder paste datasheet). Heating too quickly can cause defects such as components to crack and the solder paste to splatter causing solder balls during reflow. Soak
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