Rambus Inc creates semiconductor products, which include technologies for electronics memory and chip interfaces. The firm receives the majority of its revenue from royalties on patent licenses for its solutions. Rambus operates in two units: Memory and interface division, or MID and Rambus Security. The MID segment generates the majority of revenue and provides memory technology for DRAM devices, NAND devices, system-on-chip Devices, silicon physical IP, and memory buffer chips. South Korea and the United States contribute the largest proportion of sales.