Exicon

Exicon makes testing equipment that checks whether memory chips, solid-state drives, and other semiconductors work correctly before they leave the factory, catching defects and helping manufacturers improve production yields.

Its customers are semiconductor makers who need to verify chips such as high-speed DRAM and SSDs used in servers, PCs, and smartphones. Listed on KOSDAQ, Korea's tech-focused small-cap board, the company covers three main product lines: high-speed DRAM testers, burn-in test systems (which stress-test chips under extreme conditions), and SSD testers.