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SK hynix Begins Supplying Mobile DRAM With High-K Molding Compound to Curb Smartphone Heat

The company says a new package material raises thermal conductivity 3.5 times to target heat from on-device AI in stacked chip designs.

Overview

  • SK hynix says it has started shipping mobile DRAM that uses an industry-first High-K epoxy molding compound for improved heat dissipation.
  • The company reports 3.5 times higher thermal conductivity and a 47% reduction in vertical thermal resistance compared with conventional materials.
  • The approach is aimed at overheating tied to fast on-device AI data transfers and package-on-package layouts that place DRAM over application processors.
  • SK hynix expects lower power draw to translate into longer battery runtime and extended smartphone lifespan for users.
  • The launch has been welcomed by global smartphone makers, and executive Lee Gyu-jei characterized the materials shift as a meaningful advance in mobile DRAM.