Home > News > Silicon-based LEDs leap from lab to fab
June 30th, 2010
Silicon-based LEDs leap from lab to fab
Abstract:
LEDs are widely used in displays, automobiles, handsets, notebook backlighting, TV backlighting, and general lighting. The light-emitting films - InAlGaP for red LEDs, and InAlGaN for their blue and green cousins - need to be grown on a carrier substrate.
There is no good substrate to match the GaN material system, in terms of lattice constant and thermal expansion, but it is possible to grow high-quality films on sapphire, SiC and silicon.
Almost all GaN-based LEDs are fabricated on sapphire substrates, and Cree is the notable exception, using SiC substrates instead.
Massive adoption of solid-state lighting requires further advances in large-scale, low cost manufacturing. Siliconbased GaN LEDs have been attracting researchers in universities and industry for many years, due to their promise of large-scale production and compatibility with the IC manufacturing platform. In comparison, sapphire and SiC substrates are much smaller, and they can't be processed through silicon lines.
Source:
compoundsemiconductor.net
Bookmark:
| Related News Press |
News and information
Beyond wires: Bubble technology powers next-generation electronics:New laser-based bubble printing technique creates ultra-flexible liquid metal circuits November 8th, 2024
Nanoparticle bursts over the Amazon rainforest: Rainfall induces bursts of natural nanoparticles that can form clouds and further precipitation over the Amazon rainforest November 8th, 2024
Nanotechnology: Flexible biosensors with modular design November 8th, 2024
Exosomes: A potential biomarker and therapeutic target in diabetic cardiomyopathy November 8th, 2024
Display technology/LEDs/SS Lighting/OLEDs
Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent July 5th, 2024
New organic molecule shatters phosphorescence efficiency records and paves way for rare metal-free applications July 5th, 2024
Utilizing palladium for addressing contact issues of buried oxide thin film transistors April 5th, 2024
Possible Futures
Nanotechnology: Flexible biosensors with modular design November 8th, 2024
Exosomes: A potential biomarker and therapeutic target in diabetic cardiomyopathy November 8th, 2024
Turning up the signal November 8th, 2024
Nanofibrous metal oxide semiconductor for sensory face November 8th, 2024
Announcements
Nanotechnology: Flexible biosensors with modular design November 8th, 2024
Exosomes: A potential biomarker and therapeutic target in diabetic cardiomyopathy November 8th, 2024
Turning up the signal November 8th, 2024
Nanofibrous metal oxide semiconductor for sensory face November 8th, 2024
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||