RE: NRF52840 PCB

Berkay Dudu — Fri, 31 May 2024 14:33:18 GMT

Thanks

RE: NRF52840 PCB

helsing — Fri, 31 May 2024 13:55:49 GMT

Hi Berkay,

"Via in pad" is often recommended for certain designs. For instance, when using the Wafer Level Chip Scale Package (WLCSP), it is recommended to use via capping to ensure good solderability when vias are used on a board with small pads https://docs.nordicsemi.com/bundle/nwp_050/page/WP/nwp_050/pcb_stackup.html#ariaid-title1). Capped via in pad is used in order to prevent solder paste from dissapearing down into the via.

Via-in-pad can be challenging. Please discuss this further with the PCB manufacturer and also see the related ticket:
https://devzone.nordicsemi.com/f/nordic-q-a/96530/nrf5340-aqfn94-pcb-trace-routing-for-inner-pads-via-in-pad?ReplyFilter=Answers&ReplySortBy=Answers&ReplySortOrder=Descending

RE: NRF52840 PCB

Berkay Dudu — Thu, 30 May 2024 14:22:27 GMT

Thank you. I look forward to your response on this matter.

RE: NRF52840 PCB

helsing — Thu, 30 May 2024 14:06:28 GMT

Hi Berkay, just letting you know we have started looking into this.