Electronics Forum | Tue Sep 14 05:59:16 EDT 1999 | Edmund Loh
Can anyone out there pls enlighten me on how to solve chip tombstone defects. I am running a board with a lot of 0603 chip. i had fine the profile and the alignment, but it still happen randomly on the board itself. Is there any other way to solve t
Electronics Forum | Fri Aug 16 06:49:07 EDT 2002 | zolasteven
Hi, Thanks for your informative answer. We actually have measuring system and knows what are the defects and we don't really know the actual causes. We do fire-fight and some of the solutions does not really solve the root cause. Thanks again
Industry News | 2018-10-18 08:14:11.0
How to Prevent the Tombstone and Open Defects during the SMT Reflow Process
Industry News | 2012-05-15 10:31:04.0
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Bob Willis "How to Do It" video clip explains how to test BGA or Area Array Packages for solderability. The reason this is difficult to do by other means is the solder terminations would be displaced during solder contact. A simple test like this als
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. An expired solder paste is also a common cause of this defect. To prevent Non-Wetting and De-Wetting, make sure to clean the boards first
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