Yield over die area should be the metric.

If you have a chip that is 50% of the wafer area, a single fault will lead to a yield of 50%. Now compare it with a chip that is 1% of the wafer area, the same single fault gets a yield of 99%.

So comparing the yields of two processes without factoring in the die area is not a fair game.

Where do I find you?

An anaesthesist friend of mine once told me that there are two kinds of muscles - the ones you can actively control (such as muscles in arms and legs and also the muscles for breathing) and those you cannot, such as your heart and intestine-muscles (around the gut etc.). The latter has a different kind of receptors and isn’t affected by the stuff that they use in hospitals to put you down, but since the breathing is stopped, you’ll always be intubated.

I guess this poison is of the same kind but I don’t know the technicalities…