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Epitaxial growth using MOCVD (metal-organic chemical vapor deposition) is the most critical manufacturing step for HB LED fabrication.LED manufacturers have made tremendous progress in LED performance and cost reduction with the recent large-scale application of HB LEDs for LED TV back-lighting units.However,further improvements are needed to enable widespread adoption of HB LEDs in outdoor,commercial,industrial and residential lighting.This has led to new challenges for MOCVD equipment suppliers in improving productivity and yield.This presentation will highlight how MOCVD technology advances are expected to reduce LED manufacturing costs over the next few years to enable widespread adoption of solid state lighting.