SK hynix Starts Mass-Production of High-Speed DRAM, “HBM2E”

SK hynix’s HBM2E supports over 460GB (Gigabyte) per second with 1,024 I/Os (Inputs/Outputs) based on the 3.6Gbps (gigabits-per-second) speed performance per pin. It is the fastest DRAM solution in the industry, being able to transmit 124 FHD (full-HD) movies (3.7GB each) per second. The density is 16GB by vertically stacking eight 16Gb chips through TSV (Through Silicon Via) technology, and it is more than doubled from the previous generation (HBM2).

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“SK hynix has been in the forefront of technology innovation that contributes to human civilization with achievements including the world’s first development of HBM products,” said Jonghoon Oh, Executive Vice President and Chief Marketing Officer (CMO) at SK hynix. “With the full-scale mass-production of HBM2E, we will continue to strengthen our presence in the premium memory market and lead the fourth industrial revolution.”

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Annotation

• HBM (High Bandwidth Memory)
  – High performance, high bandwidth memory products that adopt TSV technology to dramatically accelerate data processing speed over traditional DRAMs.
• TSV (Through Silicon Via) 
  – An interconnecting technology that connects the upper and lower chips through thousands of fine holes on DRAM chip.
  – Delivers data, commands, and currents through column-shaped paths that penetrate the entire silicon wafer thickness after stacking multiple DRAM chips on the buffer chip.
  – Up to 30% decrease in size and up to 50% decrease in power consumption over existing packaging methods.
• Standards for data process speed conversion
  – 1GB = 8Gb
  – 3.6Gbps per pin with 1024 data I/Os (Inputs/Outputs) = 3686.4Gbps
  – 3686.4Gbps / 8 = 460.8GB/s (Gb -> GB conversion)

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