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LED Manufacturing Technologies
Yole Development, Nov 2007, Pages: 186
The 10 key on-going technologies to make the LEDs to generate more light than heat and finally take the competitive lead in lighting markets.
Breaking the Profit-barrier with Ultra-High Brightness LEDs
LED component volumes have been driven mainly by mobile phone sales recently, showing an incredible annual compound growth rate of more than +45% per year.
Due to the strong pressure on component prices, revenue growth has been moderate: only +8% over the last 2 years.
“It is now clear that LED market needs to expand into new and profitable sectors with higher margins. We believe that this growth will come from 3 additional application areas: automotive lighting, architectural lighting and general illumination, in addition to the LCD backlighting market.” says Philippe Roussel senior analyst in charge of Compound Semiconductor activity.
To capture the profits in these application sectors, significant improvements are needed in LED performance, especially in $/lumen and in Lumens/Watt at full power. New approaches manufacturing technologies are required at all levels: materials, design, front-end, back-end and packaging, in order to profit from the potential of Ultra-High Brightness LED: UHB-LEDs.
More power and efficiency leads to higher margins and profits
EPIC Secretary General Tom Pearsall points-out: “Recent announcements from LED manufacturers show very impressive results on the lm/W efficiency parameter. (150 lm/W has been proved in laboratory), but only at low-current ( 1 Watt). In other words, LEDs still lag behind the performance of fluorescent lamps for general lighting applications.
Today high power LED are generating on the average 75% heat versus only 25% light. Several parameters have to be dramatically improved like:
- Internal Quantum Efficiency
- Electrical losses
- Extraction efficiency
- Phosphor conversion and optics quality
This report describes 10 key manufacturing technologies, in use or under investigation that considerably improved the LED optical output power among:
- New substrate materials
- Laser Lift-Off
- Temporary Bonding
- Transparent top contacts
- Binning
- Surface Texturing
- Phosphor composition and deposition
A new business model is needed to market LEDs for general illumination
LEDs have a natural advantage in automotive outdoor and backlighting, but a new business model is needed to penetrate the general lighting sector where fluorescent light remains a strong competitor.
Today the incandescent lighting business generates revenues because 30% of the installed base is replaced every year and the manufacturing infrastructure has been amortized for many years. Industry needs to solve the challenge of building a growing market of lighting products with a quasi-infinite lifetime while developing mass production methods for the next-generation of UHB-LED
About Epic
EPIC: The European Photonics Industry Consortium
EPIC’s mission is to build sustainable growth for European Photonics Industries. Membership is open to all organisations that are engaged in photonics engineering that have a presence in Europe.
Benefits of the report for equipment and material suppliers:
- Structure analysis of the LED industry and evolution of the industrial food chain and company business models
- Calculation of wafer volumes to be produced including diameter evolution, material type and related forecasts for each market segments
- Description of the new processes & designs and linked equipment and material needs
Benefits of the report for LED makers:
- Analysis of the current applications and detailed analysis of the future business opportunities
- Volumes and prices forecasts at device level.
- Alternative technical solutions to design and manufacture next-gen LEDs
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