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Advantech SOM-Express Design Guide
Air flow
Air flow
(b) Side View
(a ) Top View
Figure 8-2: Air Flow Direction
8.6 SOM-Express Thermal solution Specification
Module should be equipped with a heat-spreader. This heat-spreader by itself does
not constitute the complete thermal solution for a module but provides a common
interface between modules and implementation-specific thermal solutions.
The overall module height from the bottom surface of the module board to the heat-
spreader top surface shall be 13mm for SOM-Express modules. The module PCB
and heat-spreader may be used which allows use of readily available standoffs.
Figure 8-3: Overall Height for Heat-Spreader in SOM-Express Modules
Chapter 8 Heat Sink Recommended Design
103
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