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PCB prototype supplier meeting nRF52840 via-in-pad requirements

Hi folks,

I'm trying to find a pcb prototype manufacturer which supports the via-in-pad requirements for the nRF52840 package (i.e. 0.15mm hole size with 0.1mm annular ring). However, most pcb protottype suppliers demand either minimum 0.2mm hole size and/or minimum 0.15mm annular ring.

The only supplier I found is www.multi-cb.de from Germany. They seem trustful. The only downside: Their offer has a very long manufacturing time (6 weeks), if a fixed layer stack for 50Ohm RF traces is required.

Does anybody know a good PCB supplier, capable of fullfilling the nRF52840 via-in-pad requirements and having not too long lead times?

Thanks for your hints!

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  • I asked for quotations from a few PCB manufacturers. Here is my summary...

    - Elprint confirmed, that they had experience with nRF52840, and they can do the small via-in-pads within 5 days.

    - Eurocircuits proposed some modifications to the inner pad rows (bigger and oval form). 5-7 days manufacturing time, too.

    - PCBway (aka PCBcart) from china stated that they can to the small via-in-pads, too.

    - Würth: Although they are said to be a high quality manufacturer, they stated that they cannot do these small via-in-pads. (Perhaps they don't do it, BECAUSE they are high quality. Other manufacturers might accept smaller pad dimensions and thus lower quality...??)

    Because we used Eurocircuits in the past, we chose this one for our purposes.

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