IEI Integration ICE-DB-T6 - Manual (Page 90)

Type 6 Carrier Board Design Guide
Page 80
Figure 5-8: Basic Module Heatspreader Footprint
All dimensions are in mm. X-Y tolerances shall be ± 0.3mm [±0.012"].
The interior holes at coordinates (40, 40) and (80, 40) are tapped through holes with a
M2.5 thread. The interior holes do not receive standoffs. These holes may be sealed on
the module side by an adhesive backed foil, or they may be blind tapped holes with a
minimum thread depth of 2.5 mm. They are intended to allow additional attachment points
to the heatspreader from outside the module.