SSDs using traditional planar NAND have seen a nice price reduction curve over the years with costs per gigabyte often well under $0.50. This may not hold true for 3D NAND if the number crunching over at The Register is accurate. The scaling is quite intense when fabbing 3D NAND, planar NAND can require up to three deposition layers for charge trap or four for floating gate style flash. Multiply those numbers by the 128 layers present on Intel's 3D NAND and you can see why the fabrication is going to be more expensive, be produced more slowly and be more prone to errors. That will all add up to expensive SSDs whose price is unlikely to fall as quickly as did planar. Currently about 5% of NAND produced is 3D but Sandisk is quoted as expecting that to climb to 50% by 2018, hopefully the process will have matured significantly by then.
"Stifel MD Aaron Rakers bas been crunching numbers and comparing foundry capital costs for NAND over the next few years with those for disk drive fabs."
Here is some more Tech News from around the web:
- Amazon whisks desktop apps into cloud bazaar in virty PC push @ The Register
- Has Google Indexed Your Backup Drive? @ Slashdot
- IBM creates teeny-tiny 220TB tape to entrench a trillion texts @ The Inquirer
- 10 Years of Git: An Interview with Git Creator Linus Torvalds @ Linux.com
- Google wants Marvin the Paranoid Android's personality in the cloud @ The Register
- Oh no, Moto! Cable modem has hardcoded 'technician' backdoor @ The Register