<p>Chinese researchers have built a 32-bit RISC-V processor using molybdenum disulfide (MoS2) on a sapphire substrate. The processor, RV32-WUJI, has 6000 transistors and operates at KHz speeds, executing the full RISC-V 32-bit instruction set. The researchers used machine learning to optimize the wiring and materials for the transistors. The overall yield was over 99.9 percent, with a chip-level yield of 99.8 percent.</p>