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15
votes
3answers
3k views

Why is gold preferred over silver for bond wire?

Silver is a better conductor than gold and in Integrated Circuit package where exposure to air should not be a concern Gold is used. Any particular advantage of using Gold over Silver?
0
votes
1answer
285 views

Safely removing bonding glue from an IC in order to identify it?

I have an IC, that has 5 visible bonds. The entire IC is covered with some sort of semi transparent bonding glue. I want to identify the IC and were thinking to remove the glue somehow. What chemical ...
11
votes
3answers
1k views

Why does this EPROM have comb-like structures around the wire bonding pads?

I took some pictures of a Microchip EPROM die from the late 80s / early 90s (I can't recall the exact part number). The wire bonding pads are surrounded by a comb-like structure. What is the purpose ...