Light-emitting device having a built-in light sensor

US10411161B2 · kind B2 · utility

Assignee

• ALEDIA · FR

Inventors

• Tiphaine Dupont · Grenoble, FR
• Erwan Dornel · Fontaine, FR

Key dates

• Filing date: Sep 9, 2016
• Grant date: Sep 10, 2019
• Expiry date: Sep 9, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/831

Abstract

A light-emitting device including a substrate at least partially doped with a first conductivity type and including a first surface and light-emitting diodes, each diode including at least one three-dimensional semiconductor element, which is or is not doped with the first conductivity type. The semiconductor elements rest on a continuous first portion of the first surface and at least one semiconductor region that forms a photodiode that is at least partially doped with a second conductivity type which is opposite the first conductivity type, and extends into the substrate from a second portion of the first surface that is separate from the first portion.