Patent · US Active

Solid state lighting devices without converter materials and associated methods of manufacturing

US8525148B2 · kind B2 · utility

1Cited by

4References

10Claims

0Family size

Assignee

Micron Technology, Inc. · US

Inventors

Zaiyuan Ren · Boise, US
Thomas Gehrke · Carrboro, US

Key dates

Filing date	Jul 16, 2010
Grant date	Sep 3, 2013
Priority date	—
Expiry date	Nov 1, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/824
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

Solid state lighting devices that can produce white light without a phosphor are disclosed herein. In one embodiment, a solid state lighting device includes a first semiconductor material, a second semiconductor material spaced apart from the first semiconductor material, and an active region between the first and second semiconductor materials. The active region includes a first sub-region having a first center wavelength and a second sub-region having a second center wavelength different from the first center wavelength.

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