User's Manual

LE920A4 HW User Guide Mounting the Module on Your Board
Doc#: 1VV0301261 PCB Pad Design
Rev. 4.3 Page 100 of 123 2017-12-07
PCB Pad Design
The solder pads on the PCB are recommended to be of the Non Solder Mask Defined
(NSMD) type.
Figure 26: PCB Pad Design
Recommendations for PCB Pad Dimensions (mm)
Figure 27: PCB Pad Dimensions
It is not recommended to place around the pads a via or micro-via that is not covered by
solder resist in an area of 0.15 mm unless it carries the same signal as the pad itself.
Micro via inside the pads are allowed.
Holes in pad are allowed only for blind holes and not for through holes.