Donggeun Ko, Jacob Yoon, and Jangho Seo describe how patterned wafers can help increase LED light extraction by reducing defect density and total internal reflection losses.
Patterned substrates enhance LED light extraction (MAGAZINE)
by Commercial LED Lighting | Jul 22, 2014 | Automotive & Vehicles, Features, LED Design & Manufacturing, LEDs Sources, Manufacturing Equipment, Packaged LEDS, Substrates & Wafers