esp-wrover recomended footprint

adilburak
Posts: 2
Joined: Mon Jun 08, 2020 3:03 pm

esp-wrover recomended footprint

Postby adilburak » Mon Jan 04, 2021 4:49 pm

Can you confirm the recommended pad sizes for the wrover module.
Data sheet calls out for 2x.9mm pads.
These pads on the main board will overlap the module pads extending into the module.
This overlap lands the pads onto vias and ground planes on the module causing shorts.


[attachment=0]pad_overlap.jpg[/attachment]
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chegewara
Posts: 1378
Joined: Wed Jun 14, 2017 9:00 pm

Re: esp-wrover recomended footprint

Postby chegewara » Tue Jan 05, 2021 6:47 am


becorey
Posts: 74
Joined: Sat Mar 28, 2020 4:18 pm

Re: esp-wrover recomended footprint

Postby becorey » Tue Jan 05, 2021 6:54 am

Look at the bottom of the module, the vias nearby do not have exposed copper. Follow the recommended footprint you should be fine. I guess if you were really concerned you could make them 1.35mm instead of 2mm (.85mm under module plus .5mm extending out from module). But generally the manufacturer's guidelines are the best starting point.

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