Cooling techniques and heatsink mounting proposals

TN1037

12/24

DocID024655 Rev 3

a large head screw improves the heatsink fixing. In addition, a PCB hole the same size as

the head screw, placed directly under it, provides lateral binding and improves the stability of

the assembly process.

A thermal foil must be placed between the heatsink and the topside of the SLLIMM-nano in

order to ensure the creepage distance.

Figure 13. Small heatsink bonded on the package by plastic screws

Figure 14. Large heatsink bonded on the package by plastic screws

2.5

Al-plate heatsink bonded on the PCB by mounting screws

A simple aluminum plate heatsink can be bonded on the package of the SLLIMM-nano by

two screws housed in the PCB. The dimensions, shown in

Figure 15, are referred to a

Mounting

plastic screw

Heatsink

PCB

SLLIMM-nano

PCB hole for head screw binding

Thermal rubber

(100 ~ 200 µm thickness)

GIPG310720130819FSR