Nanowire formation methods
Abstract:
Methods of forming an integrated InGaN/GaN or AlInGaP/InGaP LED on Si CMOS for RGB colors and the resulting devices are provided. Embodiments include forming trenches having a v-shaped bottom through an oxide layer and a portion of a substrate; forming AlN or GaAs in the v-shaped bottom; forming a n-GaN or n-InGaP pillar on the AlN or GaAs through and above the first oxide layer; forming an InGaN/GaN MQW or AlInGaP/InGaP MQW over the n-GaN or n-InGaP pillar; forming a p-GaN or p-InGaP layer over the n-GaN pillar and InGaN/GaN MQW or the n-InGaP pillar and AlInGaP/InGaP MQW down to the first oxide layer; forming a TCO layer over the first oxide layer and the p-GaN or p-InGaP layer; forming a second oxide layer over the TCO layer; and forming a metal pad on the TCO layer above each n-GaN or n-InGaP pillar.
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