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 all functions of EpiEL-100 with 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.

EpiEL-700是為帶有光透明襯底的LED外延片快速電致發(fā)光評(píng)估設(shè)計(jì)的，例如在藍(lán)寶石襯底上的氮化物基LED。它有EpiEL-100的所有功能，另外附加模擬不同的光提取方法的功能。 EpiEL-700也可用于研究材料結(jié)構(gòu)的光學(xué)非均勻性，這種非均勻性導(dǎo)致外延片兩側(cè)產(chǎn)生不同的發(fā)射強(qiáng)度。