Semi -
In case we suppose that there are yield issues with the Pentium 4 CPUs at 90nm technology process, then, the appearance of 2.40GHz model is quite logical, as Intel now can sell chips that do not fit into the original frequency envelope.
In other words, 90nm Celerons. Despite his misunderstanding of what yield and binsplit means he is quite insightful.
fwiw, It is Certainly more cost efficient, to make 90nm devices on 300mm wafers, then 130nm devices on 200mm wafers.
It sure is. That's obvious to you but you know the business.
Here's a little teaser for those here. Simple calculations show that if Intel has good yields (you be the judge) they get upwards of 400 good Prescott die per wafer. Eventually those 300mm fabs will be capable of between 5 & 10K wafer starts per week. Do the math. Some people claim Intel's yields are in a class by themselves. The output could be even higher. As for me, I can't comment... Clearly Intel has more capacity than they can fill with processors alone, assuming decent yields, and a 4th 300mm fab, F12, under conversion. What is the plan here? I might also add that there is another area of constraint but we won't get into that right now...