Less than two years after the launch of its first 10 nm DRAM product, Samsung begins mass production of second generation 10 nm DDR4 memory chips. The company's plans for the future include DDR5, HBM3, LPDDR5, as well as GDDR6 memory chips.
https://www.notebookcheck.net/Samsung-begins-mass-production-of-second-generation-10-nm-DDR4-memory.273094.0.html