I've got a project that features an array of ultraviolet LEDs on an aluminium board.This board shall be screwed to a heatsink.
My problem is that I'd like to apply thermal paste to improve the thermal conductivity, but I don't know how.
The area is approximately 220 mm x 440 mm and in total twelve screws are distributed evenly over the board.
How would you apply the thermal paste in this case? For a CPU I'd know the answer, but the surface of a CPU heatspreader is way smaller and I guess the dot technique won't work here.
I think covering the whole area is not a good idea because there will be many air pockets left. Perhaps still dots to give the air in between space to get out?
Any advice?
Thanks!
