>> "You're saying that Intel's COGS component of GM includes R&D & fab construction/equipping costs?."
R&D is not. The cost of the Fab and equipment are.
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I don't think so. gross margin includes cost of materials and labor. But not cost of owned equipment, unless equipment gets destroyed during the process, in which case that equipment is just another consumable input. If durable equipment was rented, then gross margin would account for rental cost.
For owned capital equipment, its true cost shows up only in net margin, as fpg and ag pointed out. Also shows up in depreciation. But that is not counted in gross margin.
If you operated a micro brewery in your basement and sold beer to your neighbors, you would not include the cost of your house in calculating gross margin. Even if you accounted for your house depreciation in your tax filing.