Method and apparatus for fabricating phosphor-coated LED dies

US9105818B2 · kind B2 · utility

Assignee

• TSMC SOLID STATE LIGHTING LTD. · TW

Inventors

• Chi-Xiang Tseng
• Hsiao-Wen Lee · Hsinchu, TW
• Min-Sheng Wu · Daxi District, TW
• Tien-Ming Lin · Hsinchu, TW

Key dates

• Filing date: Jun 3, 2014
• Grant date: Aug 11, 2015
• Expiry date: Jun 3, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/841

Abstract

The present disclosure involves lighting apparatus. The lighting apparatus includes a first doped semiconductor layer. A light-emitting layer is disposed over the first doped semiconductor layer. A second doped semiconductor layer is disposed over the light-emitting layer. The second doped semiconductor layer has a different type of conductivity than the first doped semiconductor layer. A photo-conversion layer is disposed over the second doped semiconductor layer and over side surfaces of the first and second doped semiconductor layers and the light-emitting layer. The photo-conversion layer has an angular profile.