3 ms·
> to maintain near 100% uptime They have uptime only about 80%. They need to be stopped, calibrated and maintained frequently. They do not go obsolete quicly.
by nabla9 2y ago
> to maintain near 100% uptime
They have uptime only about 80%. They need to be stopped, calibrated and maintained frequently.
They do not go obsolete quicly. They are constantly upgraded. 10-15 year old fabs and machines are still running all over the world. There are 1000 nm, 90nm, 40 nm, 14 nm fabs still running. High-end is not all of semiconductor industry.
- brookst 2y agoYes, it is more that margins are highest when a machine is brand new so it pays to maximize duty cycle. It will last for a decade, sure, but those 90nm fabs are not nearly as profitable as a 4nm fab.