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detecting BGA micro cracks	Woodsmt	2/08/2010	4 posts 223 views
Looking for methods for detecting BGA microcracks without cross sectioning. Currently evaluating a new package and will be putting together a thermal stress eval. We would like to perform intermediate inspections for cracks. Once all cycles are done we will cross section to confirm intermediate findings. I am looking at X-ray and ultrasound as methods. Does anyone have any advice on these or other methods and equipment?
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