How to place an exposed pad (pad should not be covered by stop-mask) on a PCB in Eagle?
I have to design a pcb which has large exposed pads on the top and bottom of the PCB. I had assumed that placing a tstop layer on the pad


That will expose the pad on the top side of the board. If you also want the pad to be exposed on the bottom side you will also need to draw a box on the bstop layer.

Basically:

tstop = Top Solder Mask

bstop = Bottom Solder Mask