[ksec]

>Samsung's fabs that inefficient?

This has been the case for sometime, I pointed it out way back in 2017 on SemiWiki. They are fine on mature node though, this is only a problem on leading edge.

But credit where credit are due, Samsung didn't give up. Leading edge is hard, and that is saying the least. If you have been wondering where those Samsung NAND and DRAM profits gone, Foundry services. And if you have been asking why TSMC just doesn't hike price. Samsung has been keeping them at bay some what. And if you think TSMC is a monopoly and has no competition. You should spend a weekend doing more reading on Semi-Conductor industry.