Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/last-will-of-bga-void.pdf
: A total of 21 of 40 test vehicles had a void greater than 45% of solder ball diameter or 20% of ball area Solder crack path typically found at solder joint / BGA package interface Via in Pad (VIP
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/04/last-will-of-bga-void-1.pdf
: A total of 21 of 40 test vehicles had a void greater than 45% of solder ball diameter or 20% of ball area Solder crack path typically found at solder joint / BGA package interface Via in Pad (VIP
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