Patent · US Expired

Semiconductor light emitting device and method for manufacturing same

US6576933B2 · kind B2 · utility

46Cited by
1References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 9, 2001
Grant dateJun 10, 2003
Priority date
Expiry dateMar 9, 2021

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10H20/8512
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

There are provided a semiconductor light emitting device wherein the variation in tone in each device is small and the variation in tone due to deterioration with age is also small, and a method for manufacturing the same. The semiconductor light emitting device includes an active layer for emitting primary light having a first wavelength by current injection, and a light emitting layer excited by the primary light for emitting secondary light having a second wavelength different from said first wavelength, wherein the primary light and the secondary light are mixed to be outputted.

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