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A high-emission-power n-side-up-type AlGaInP yellowish-green (YG) DH-LED has been developed by operation current spreading technique utilizing dispersive ohmic electrodes configured above LP-MOVPE-grown n-AlGaInP cladding layer. The configuration of the ohmic electrodes was optimized based on the theoretical calculation of spreading manner of operation current supplied through low-resistive indium-tin-oxide...