Notes on FPGA board design

The happy Australian is at it again!

This time, he talks about designing boards with FPGAs and explains various things about using tiny BGA (ball grid array) chips. These 3x3mm FPGAs have 36 connector-balls underneath, spaced only 0.4mm apart. Making circuit boards for these chips is still a bit too intricate for most cheap factories, but when you consider how much smaller the final boards can be – maybe using a more expensive factory evens out after all!