Let's not assume readers will be able to identify what they're looking at when shown ultrasonic scans of metallurgical bonds (en)
So is anything from this 1994 paper being used today, or is it still as obscenely expensive to do accurately as it looks? This was written back when the manufacturing process of microchips was large enough that you could read the layout with a good magnifying glass (en)
I thought this whole mess was about forming a eutetic bond, and now we're preventing it? Did this just become an article about silicon wafer fab? (en)