1. The development law of sapphire substrateIn the LED industry, there is a similar "Moore's Law", called Haitz law, which means that the price of LED will decrease by a tenth every 10 y...
1. What is sapphire?As the king of LED substrate, the name of sapphire is from Latin Spphins, which means blue. It belongs to the corundum group mineral, with cubic crystal system. In the gem world, a...
At present, the quality of ultra-high brightness white or blue LED depends on the material quality of GaN, which is closely related to the surface processing quality of the sapphire substrate. The lat...