3 ms·
Interesting! That's my point though. If power outages hurt these fabs so severely why aren't their power supply systems more robust? I know it's easy for me t
by igravious 7y ago
Interesting!
That's my point though. If power outages hurt these fabs so severely why aren't their power supply systems more robust?
I know it's easy for me to say but I'm having a hard time wrapping my head around it.
Say in another engineering space where an hour of power outage means roughly an hour of downtime then you'd maybe not care so much.
But if, as you link here, a 30 minute power outage can "destroy 3.5% of the global NAND supply for March" wouldn't they make sure they have 0 minutes of power outage – heck, that's nearly national security levels of threat – wouldn't the South Korean government install two (or three) sets of power lines from different parts of the grid. Or a local power source (diesel generators and a small coal power plant.) Expensive? Sure. But so is 3.5% of global NAND supply for a month?
- dgacmu 7y agoPower is honestly really hard -- for example, if you read through this list of datacenter power failure post-mortems: http://up2v.nl/2017/06/02/datacenter-complete-power-failures/ http://up2v.nl/2017/06/02/datacenter-complete-power-failures... there are a lot of individual failure cases. DC operators learn from each failure, but there are a lot of ways things can go wrong. Fabs can be upwards of 50MW, which puts them in the range of a good-sized datacenter, so the challenges probably end up similar. (I'm saying the last part carefully - I'm much more familiar with datacenter power design than fab power design!)