kbujuru,
The only specific electronics packaging problem I can think of is
EMI/RFI. You need to chat with your electronics people, and to whoever is going to use the thing.
A very good book for you would be Product Design for Manufacture and Assembly by Geoffrey Boothroyd, Peter Dewhurst and Winston Knight.
Most of my electronics packaging is done in sheet metal boxes. I don't have to meet NEMA[ ]4, IP65 through[ ]68, or UL886. If you do, then you need copies of those standards.
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JHG