Eta Research is the first manufacturer of C-doped semi-insulating GaN substrates in China, and has achieved mass production of 2-inch and 4-inch GaN products. As the world's leading free-standing GaN manufacturer, Eta Research is the only company in China that can produce 4-inch GaN free-standing substrates on a large scale. On the occasion of Double 11, in order to promote the localization process of GaN substrate materials, Eta Research launched the "Double 11" GaN Substrate Carnival from October 21 to November 20, 2024 to repay the long-term support and trust of customers at home and abroad. Double Eleven allows you to enjoy the lowest price of the year to buy GaN substrates!