https://devzone.nordicsemi.com/f/nordic-q-a/129085/soldermask-clearanceThe Nordic Hardware Design Guidelines suggest a 0.050 mm soldermask clearance around the pads which should give a 0.100 soldermask sliver between the pads according to the documentation. Using a 0.050 clearance however actually results in a 0.050 mm sliveren-USTelligent Community 13Fri, 04 Sep 2026 15:21:59 GMThttps://devzone.nordicsemi.com/thread/570943?ContentTypeID=1Fri, 04 Sep 2026 15:21:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7ed65078-5cec-4a1d-a5a1-8a4b9e006eacnipri<p>Thank you, many board houses still can&#39;t handle anything &lt; 0.076mm so I try to give them as much as I can without risking solderability issues.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/570923?ContentTypeID=1Fri, 04 Sep 2026 10:34:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:54dee4c3-ec73-4295-b9dc-5adcd6cf7fd9Bendik Heiskel<p>Hi,</p> <p>We are using 0.05mm soldermask expansion on the nRF9151DK, so the resulting narrower soldermask sliver should be OK</p> <p>However if your PCB manufacturer are able to reliably produce PCB with the lower clearance, without covering the pads with soldermask, it&#39;s OK to reduce the clearance to achieve the 0.1mm sliver.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Bendik</p> <p>&nbsp;</p><div style="clear:both;"></div>