Quote Originally Posted by savantu View Post
Yields follow a preset curve on any process introduction and ramp up. The problem is, the 32nm SOI HKMG process isn't following the preset curve and deadlines. That's why 32nm products were pushed 6 months later.
So you're arguing a false dillema. The issue isn't that yeilds are bad at introduction ( which is normal ), but the processes schedules aren't met which inserts delays into products build on that process.
your post is so misinformative.

there is no preset function for yields v time or correctly defect density v time although generally they are logarithmic. ramp times accelerate with with moore's law. in fact, even intel fell behind in this metric because there 32nm ramped as fast as their 45nm process. that's not all that great for a process that's only 70% denser.