Patent · US Expired

Method of making diode having reflective layer

US6949395B2 · kind B2 · utility

63Cited by
35References
73Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 22, 2001
Grant dateSep 27, 2005
Priority date
Expiry dateOct 22, 2021

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10H20/833

Abstract

A method of forming a light emitting diode includes forming a transparent substrate and a GaN buffer layer on the transparent substrate. An n-GaN layer is formed on the buffer layer. An active layer is formed on the n-GaN layer. A p-GaN layer is formed on the active layer. A p-electrode is formed on the p-GaN layer and an n-electrode is formed on the n-GaN layer. A reflective layer is formed on a second side of the transparent substrate. A scribe line is formed on the substrate for separating the diodes on the substrate. Also, a cladding layer of AlGaN is between the p-GaN layer and the active layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.