Hello again,

Once again I send emails too fast...


SODIMM is great but with the nuance that it requires a 1mm thick PCB, and that could become more annoying than enig.

I've made some nice 1mm PCBs at JLCPCB but not all factories are able to deal with it, specially the cheaper ones.


Some actual test fits with the more common 0.8mm PCBs in SODIMM sockets will be useful. Thinner ENIG PCBs gave me some problems in a SFP module context.

With that in mind, the thicker HASL coating may play nice with 0.8mm PCBs :-)


Sebastien


On 08/09/2025 09:39, Sebastien Lorquet wrote:

On 07/09/2025 22:05, Alan C. Assis wrote:
DIMM DDR2 SO-DIMM.


Hello

Congratulations for this great connector choice instead of the smaller compute module one

I believe that for simple applications you could avoid enig for the edge connector and go for hasl.

It would be less reliable than enig, but it could work for limited insertion counts.


Sebastien


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