Footprint and soldering issues with nRF9161

RE: Footprint and soldering issues with nRF9161

mathiaso — Wed, 09 Oct 2024 07:49:16 GMT

Hi, Isaack.

As seen in the changelog for the hardware files, found under the nRF9161 DK's downloads, the updated hardware files now also contain the correct .IntLib file.

It is always recommended to order small batches of custom designs for initial production to verify the layout, assembly process, and design. Typically, 3-5 units are sufficient for initial testing.

Best regards,
Mathias

RE: Footprint and soldering issues with nRF9161

isaack-calderon — Mon, 30 Sep 2024 13:39:29 GMT

Hello !

We also had the same issue. They changed the documentation online but they did not changed the revision number.

Is that possible to get in contact together ?

RE: Footprint and soldering issues with nRF9161

mathiaso — Fri, 23 Aug 2024 12:00:34 GMT

Thank you for pointing out these examples.

As mentioned in my previous comment in this thread, the nRF9161 footprint found in the nRF9161 DK's PcbDoc is the one to use.

RE: Footprint and soldering issues with nRF9161

mathiaso — Fri, 23 Aug 2024 11:56:48 GMT

Thank you for pointing out the issue when using the files from pca10153.IntLib, Krzysztof. The footprint used in the nRF9161 DK's PcbDoc is the correct one.

RE: Footprint and soldering issues with nRF9161

KrzysztofSkw — Fri, 23 Aug 2024 11:22:35 GMT

[quote userid="117796" url="~/f/nordic-q-a/114096/footprint-and-soldering-issues-with-nrf9161/499334"]Have you experienced assembly issues when using the latest footprint found in the nRF9161 DK's hardware files as well?[/quote]

Yes, I have experienced issues when using the files from pca10153.IntLib. We had a lot of short circuits between GND and VDD on the chip. The problem is that the library has different footprint than the PCBDOC with the whole DK layout.

That's why I want to confirm which footprint is the latest and should be used in production

RE: Footprint and soldering issues with nRF9161

HRomain_ — Fri, 23 Aug 2024 11:16:49 GMT

Hi,

I’m experiencing the same issue. The "pca10153.IntLib" file in the Hardware files 1.0.0 does not correspond to the components on the DK board and the pdf schematic/layout.

Some examples include:

The nPM1300 component is not present in the pca10153.IntLib file, although it is on the DK board.
The nRF9161 footprint does not match the footprint shown in the PCB file (400688.PcbDoc).
The nRF9161 symbol does not match the symbol in the schematic PDF.

RE: Footprint and soldering issues with nRF9161

mathiaso — Thu, 22 Aug 2024 09:00:37 GMT

Hi, Krzysztof.

[quote user=""]So my question is: Is the footprint used on the latest DK files from Nordic website final?[/quote]

Yes, this should be the final revision of the footprint.

[quote user=""]They shouldn't cause the issue but we changed the footprint and tried again. This time with footprint taken from the library provided with nRF9161 DK files. That also caused us assembly issues.[/quote]

Have you experienced assembly issues when using the latest footprint found in the nRF9161 DK's hardware files as well?

Best regards,
Mathias