Homebrew_PCBs

Hello

I am building a DC PWM board.

I am designing my own board on diptrace that I intend to etch myself. and would like to use surface mount components.

I need to use an 8 ampsurface mount diode ( http://www.electro-tech-online.com/c...6b80af50a6.pdf)


I understand that i will need to use a heatsink but i do not now how to do this with surface mount devices.

Can any one explain how this is done?

Thanks.
Charlie