tviceman
Diamond Member
If you look closely at the specific SKUs they EOL, they will EOL the high-ASP high-visibility SKUs because they want to migrate the demand for those products to the higher-margin opportunities that come with obsoleting the existing models (get those 2500k owners to upgrade to 4670k or get owners of older CPUs to upgrade to the higher margin 4670k instead of the lower margin 2500k) but they will keep on producing volumes of low-ASP chips for the emerging markets for years and years...plus chipsets and supporting ICs like thunderbolt and so on.
There is of course a general node migration cadence to the entire portfolio, but it is optimized to maximize the value that comes from a depreciated toolset and production line.
For example, just to put some numbers to it from a source of public info, TSMC still generates 29% of its entire revenue from the production of wafers on nodes 0.11um and larger (0.11um to 0.5um).
That is a lot of wafers still being produced on process nodes that have been in production for over a decade. That is what you need to be able to do with your fabs if you intend on owning your own fabs.
If you don't intend on maintaining production of dated process nodes then being an IDM just isn't for you, that is what being fabless is for.
You are more knowledgeable than an encyclopedia!