Transparent Conductive Oxide Layer With Ohmic Contact On n-type AlInGaP for LEDs and MicroLEDs

Abstract: alingap leds and microleds comprise a transparent conductive oxide (tco) layer disposed on and making ohmic contact to an n-type alingap layer. the tco layer may be used to make electrical contact to the n-type side of the diode junction in the led without obstructing transmission of light out of the led through the n-type surface on which the tco layer is disposed. the tco layer may improve n-side current spreading. the tco layer may be used to interconnect the n-side contacts of adjacent alingap microleds in an array to form a shared n-side electrical contact with little or no optical cross-talk. the tco layer may improve the reflectivity of an n-side metal contact arranged to direct light out of the led.

Inventor(s): Zhongmin Ren, Rajiv Pathak

CPC Classification: H10H20/824 (No explanation available)

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