EFM32WG990 Datasheet, PDF (69/80 Pages) List of Unclassifed Manufacturers – The EFM32 MCUs are the world’s most energy friendly microcontrollers.

Preliminary
...the world's most energy friendly microcontrollers
5 PCB Layout and Soldering
5.1 Recommended PCB Layout
Figure 5.1. BGA112 PCB Land Pattern
b
a
e
d
Table 5.1. BGA112 PCB Land Pattern Dimensions (Dimensions in mm)
Symbol
a
b
d
e
Dim. (mm)
0.35
0.80
8.00
8.00
2013-05-06 - EFM32WG990FXX - d0203_Rev1.10
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