Neither do chips, even if they all start as silicon from the ground. What the earlier comment was saying is that the actual composition of crude oil varies by location so you aren't necessarily getting the same ratio of finished products at the process. With silicon you have a bit more control over what goes into the fab. But you're still at the mercy of demand from the market.
Neither do chips, even if they all start as silicon from the ground. What the earlier comment was saying is that the actual composition of crude oil varies by location so you aren't necessarily getting the same ratio of finished products at the process. With silicon you have a bit more control over what goes into the fab. But you're still at the mercy of demand from the market.