Post Reballing Solder Ball Inspection

Thinking about it... If your sphere diameters were all the same, then your planarity should be established. Sounds like a job for an AOI type machine, with a laser height checker.

I take it you have many of these to check, and are looking for something automated?

If it is just a few, a sharp inspector should be able to check planarity, and with an eye loupe and reticle be able to judge the ball diameter. How I would approach this might hinge on the volume. 'hege

reply »

I would suggest that you go to the X-Ray world. I know for sure that Dage(Nordson Company) can make actual u-cut for the ball of the part. They can see and measure everything in 3D. I am sure if they can do it other X-ray machines can probably do it too. If it is a one time job just send it to somebody who has the equipment to do it. Good Luck!

reply »