I know, I know ... It's been a long time since my last update. However I wanted to share this one. I was contacted by my alma mater to help them mount a SMD hall effect device. Rather than ask me what would be best, they already ordered the part. It's unbelievably small. How small, 1.1mm square!

Yeah, have a look at what I milled out:

Even closer:


The whole board is about 1.5 inches. There are 2 surface mount capacitors in the bottom right. They are size 805 for those that care :D

I'll update when I actually mount the switch and test it. This is a BGA device (4 balls) ... I've never soldered a BGA but plan to use my hot air station. My other option is to buy a skillet from goodwill and do a reflow.

Jay