Datasheet

Table Of Contents
STM32F105xx, STM32F107xx Package characteristics
Doc ID 15274 Rev 6 83/104
Figure 40. Recommended PCB design rules (0.80/0.75 mm pitch BGA)
Dpad
Dsm
Dpad 0.37 mm
Dsm
0.52 mm typ. (depends on solder
mask registration tolerance
Solder paste 0.37 mm aperture diameter
Non solder mask defined pads are recommended
4 to 6 mils screen print