Patent · US Active

Radiation emitting device and method of manufacturing a radiation emitting device

US12211964B2 · kind B2 · utility

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0References

18Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Alexander Baumgartner · Donaustauf, DE
T'ing Qi'ao Leow · Merang, MY
Tomin Liu · Kuching, MY
Kathy Schmidtke · Obertraubling, DE

Key dates

Filing date	Dec 18, 2019
Grant date	Jan 28, 2025
Priority date	—
Expiry date	Mar 27, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/8515
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In an embodiment a radiation emitting device includes a semiconductor chip configured to emit electromagnetic radiation of a first wavelength range from a radiation exit surface and a potting comprising a matrix material and a plurality of nanoparticles, wherein a concentration of the nanoparticles in the matrix material decreases starting from the radiation exit surface of the semiconductor chip so that a refractive index of the potting decreases starting from the radiation exit surface of the semiconductor chip, and wherein the nanoparticles are coated with a shell.

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