"Bill of materials" (BOM) is not a monetary invoice, only an itemization of constituent parts. :)

Yes the normal term I’ve always heard and used for what they’re talking about is “BOM cost”, i.e. the combined cost of every item on the BOM to make a single unit.

Reading the title I wondered if this is about more components coming with their own memory, because I've never heard BOM used as a monetary bill.