https://devzone.nordicsemi.com/f/nordic-q-a/51137/kiwi-project-with-nrf52840I have included the reference design for the nRF52840 in my project. Unfortunately, the VIAs in Pads have a hole diameter of 0.15mm and a diameter of 0.35mm and are also still staggered. Since this is not a standard, this increases the costs and I woulden-USTelligent Community 13Mon, 19 Aug 2019 08:30:26 GMThttps://devzone.nordicsemi.com/thread/204664?ContentTypeID=1Mon, 19 Aug 2019 08:30:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6d9cb8e1-f7eb-4537-8290-2faee85f7081Andreas<p>Hi,</p> <p>&nbsp;</p> <p>If you increase the hole diameter then you will increase the size of the surrounding &#39;ring&#39; that breaks up the grounding of the chip. It is hard to say whether or not this will be a problem, if you do the rest of your design well it will probably be fine. Feel free to submit your design for a free review by Nordic engineers.</p> <p>As for the pad diameter and solder resist opening this is also hard to say, but doing so is likely to increase the risk of issues. The pad diameter is 0.2-0.3mm with 0.25mm nominal. You should consult with your EMS and evaluate how your prototypes react to their equipment with these larger pads.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>