SK Hynix is considering a shift in its DRAM investment strategy at its new M15X memory production base in Cheongju, South Korea, from fifth-generation 10nm-class, or 1b, DRAM toward sixth-generation 10nm-class, or 1c, DRAM, as the high-bandwidth memory (HBM) supply chain prepares for its next technology transition, according to reports from ZDNet Korea and NewsPim.