This % goes waaay down if you're talking actual physics : just how quantum physics result in a semiconductor band gap, and what equations you need to write down

This % goes waaay down if you're talking actual physics : just how quantum physics result in a semiconductor band gap, and what equations you need to write down to explain the electric behaviour of that sandwich. I can do that, at least for the basic layouts, but my own lack of (clear) understanding would be in the "middle" of the stack : starting up from logic gates, and bottom from scripting programming languages.