Texturing a layer in an optoelectronic device for improved angle randomization of light

US9136422B1 · kind B1 · utility

Assignee

• ALTA DEVICES, INC. · US

Inventors

• Gregg Higashi · San Jose, US
• Brendan M. Kayes · Los Angeles, US
• Frank Reinhardt · Park Hills, US
• Sylvia Spruytte · Palo Alto, US

Key dates

• Filing date: Jan 19, 2012
• Grant date: Sep 15, 2015
• Expiry date: Nov 27, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50

Abstract

Embodiments generally relate to optoelectronic devices and more specifically, to textured layers in optoelectronic devices. In one embodiment, a method for providing a textured layer in an optoelectronic device includes depositing a first layer of a first material and depositing an island layer of a second material on the first layer. Depositing the island layer includes forming one or more islands of the second material to provide at least one textured surface of the island layer, where the textured surface is operative to cause scattering of light.