Electrode structures for light emitting devices

US6307218A · kind A · utility

Assignee

• Lumileds Lighting US, LLC · US

Inventors

• Daniel Steigerwald · Cupertino, US
• Serge L. Rudaz · Sunnyvale, US
• Kyle Thomas · Bellingham, US
• Steven D. Lester · Palo Alto, US
• Paul Scott Martin · Pleasanton, US
• William R. Imler · Oakland, US
• Robert M. Fletcher · San Jose, US
• Fred A. Kish, Jr. · Palo Alto, US
• Steven A. Maranowski · San Jose, US

Key dates

• Filing date: Nov 20, 1998
• Grant date: Oct 23, 2001
• Expiry date: Nov 20, 2018

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/819

Abstract

A light emitting device includes a heterojunction having a p-type layer and an n-type layer. The n-electrode is electrically connected to the n-type layer while the p-electrode is electrically connected to the p-type layer. The p and n-electrodes are positioned to form a region having uniform light intensity.