Samsung has announced that the first million units of its revolutionary DRAM made using extreme UV (EUV) techniques have been shipped. This new kind of DDR4 memory's production method is touted to result in higher performance, as well as the ability to make more chips in a shorter space of time. It will also be applied to next-gen DDR5 and LPDDR5 products soon.
https://www.notebookcheck.net/Samsung-introduces-its-industry-first-EUV-made-DDR4-DRAM.459034.0.html