EpiEL-700 is optimized for rapid
electroluminescence (EL) evaluation for LED epiwafers with optically
transparent substrates, such as nitride-based LED on
sapphire substrate. It has additional capability for simulating different light extraction
approaches. EpiEL-700 can also be used to investigate optical
non-uniformity of material structures which leads to different
emission intensity on both sides of the epiwafers.