Custom PAD design/PAD designer

Hi

I want to create a individual PAD/pads for a bluetooth module(size 10x10), these pads are placed at the edge of the PCB such that it will be used to solder onto the PCB(Base Board)

How to create such pads(custom)?. Is there any standards to be followed? Kindly help and advice.

Ex: silicon labs BLE112 ( Pads as seen on the edge of the module PCB).

Many Thanks

LN