4 ms·
I'm guessing then that they will probably use a little bit more power then, but otherwise similar to CMR/PMR in performance. That heated head element though see
by robotnikman 3y ago
I'm guessing then that they will probably use a little bit more power then, but otherwise similar to CMR/PMR in performance. That heated head element though seems like a massive point of failure, though I have no idea how durable the technology it.
- dgacmu 3y agoThe heating is done by a solid state laser diode. It should be very reliable other than adding one more thing to an already complex drive head. (Which undoubtedly means the first generation or two will have some kinks to work out, but that's not a fundamental decrease, just engineering). And there shouldn't be much of an impact on durability. The heating is very brief - a nanosecond or so. The idea is not to expand the material physically, it's to increase its magnetic permeability temporarily so that you can write the bit to it and then it becomes stable again.