Semiconductor body and method for producing a semiconductor body

US11626531B2 · kind B2 · utility

Assignee

• Osram OLED GMBH · DE

Inventors

• Massimo Drago · Riedenburg, DE
• Alexander Frey · Lappersdorf, DE
• Joachim Hertkorn · Neukirchen, DE
• Ingrid Koslow · Regensburg, DE

Key dates

• Filing date: Aug 24, 2018
• Grant date: Apr 11, 2023
• Expiry date: Jan 25, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/8252

Abstract

A semiconductor body and a method for producing a semiconductor body are disclosed. In an embodiment a semiconductor body includes a p-conducting region, wherein the p-conducting region has at least one barrier zone and a contact zone, wherein the barrier zone has a first magnesium concentration and a first aluminum concentration, wherein the contact zone has a second magnesium concentration and a second aluminum concentration, wherein the first aluminum concentration is greater than the second aluminum concentration, wherein the first magnesium concentration is at least ten times less than the second magnesium concentration, wherein the contact zone forms an outwardly exposed surface of the semiconductor body, and wherein the barrier zone adjoins the contact zone, and wherein the semiconductor body is based on a nitride compound semiconductor material.