Colorless sapphire is indespensible for lower wafer cost and higher LED brightness
Synthetic sapphire wafer is the basic component for LED production. Within the last 10 years LED manufacturing has increased by a factor of 40, while sapphire wafer consumption has exceeded a hundred million pieces per year. Needless to say, sapphire wafer makers and LED manufacturers are focused on cost management. Taking into consideration today’s high volume production, even minor variability in key sapphire parameters may have significant influence on wafer makers and LED manufacturers’ cost management.