YAS 

YAS Co., Ltd. engages in the manufacture and sale of OLED process equipment for use in OLED TVs, OLED lighting products, solar cells, and others in South Korea. The company offers OLED mass production systems; CIGS solar cells; and various equipment for research and development comprising MBE, steel thin film deposition, PLD, RF-magnetron sputter, OLED/CIGS, and UHV CVD systems, as well as OLED test systems. It also provides circular, linear, and point nozzle source parts; equipment to control and monitor evaporation source's temperature and deposition speed; glass chucks to maintain substrate in large-scaled substrates; and mask chucks to minimize distance between substrate and magnetic chuck, as well as system renovation services to enhance equipment performance by reconstructing chamber. The company was founded in 2002 and is headquartered in Paju-Si, South Korea.