[alenrozac]

Isn't it usually 5-8 years? While long in accounting terms, that's not that long in real life. Especially considering the size of capex.

[mike_hearn]

It's usually 5 years, Intel now do over 8 years, fabs can have a useful lifetime much longer than that. However Intel historically recycled old fabs to create new ones, so in practice they don't have many old fully depreciated fabs.

[danielmarkbruce]

My understanding is that the various pieces of a fab are depreciated over different time horizons. Some of it as short as a few years, some of it as long as 30. I'd guess it evens out around high single digits.