
Why Emerging Persistent Memories are Necessary
Flash can’t scale with process advances
• NAND flash went 3D at 15nm
3D is not cost-effective in a CMOS logic process
• NOR scaling stops with FinFET
28nm & smaller processes need something new
• SRAM scaling may stop at 14nm
DRAM consumes lots of power with refreshes
Standalone PM applications are growing
Low power high density memory needed for embedded
applications
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