Power electronic and optoelectronic devices with interdigitated electrodes

US10388743B2 · kind B2 · utility

Inventors

• Zhanming Li · West Vancouver, CA
• Yue Fu · Coquitlam, CA
• Wai Tung Ng · Plano, US
• Yan-Fei Liu · Kingston, CA

Key dates

• Filing date: Oct 13, 2017
• Grant date: Aug 20, 2019
• Expiry date: Oct 13, 2037

Classification

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

Abstract

This invention relates to interdigitated electrodes for power electronic and optoelectronic devices where field and current distribution determine the device performance. Described are geometries based on rounded asymmetrical fingers and electrode bases of varying width. Simulations demonstrate benefits for reducing self-heating and thermal power loss, which reduces overall on-state resistance and increases reverse break down voltages.