USSA is the world's leading semi-polar gallium nitride luminescent material technology company. It has achieved mass production of semi-polar gallium nitride substrate materials and is currently the only company on the market that can mass-produce high-quality four-inch semi-polar circles. The chip company, USSA has a market share of more than 90% of semi-polar substrates;
In the future, semi-polar substrates are expected to play an important role in stabilizing the wavelength of green chips and high-efficiency green semiconductor lasers.