Soft-Epi Commercializes 365nm Flip-Chip LEDs Based on High Quality Algan Templates

Soft-Epi, a Korean manufacturer of UV LEDs and related epitaxial wafers, announced that they have developed and commercialized 365nm flip-chip LEDs with their high quality AlGaN templates. The optical power is 580mW at 350mA in a 45x45mil chip die. The LED epitaxy was done on an AlGaN template grown on a patterned sapphire substrate (PSS). 

Soft-Epi's UV LED Package. (Image: Soft-Epi)

They used their own “AlN nucleation layer” technology to develop high quality AlGaN templates on the PSS. The templates have thickness of about 4~5um, Al composition of about 6%, XRD (102) better than 300 arcsec, and AFM RMS roughness of less than 0.2nm.

The conventional 365nm LED has a thick GaN buffer layer at the bottom of the epitaxial structure and the layer is removed during the chip processing (Vertical LED chip process) in order to prevent the emitted light from being absorbed in the GaN layer in return.

By replacing the thick GaN buffer layer with the AlGaN template layer, such complicated chip process could be avoided, making the simple and high performance 365nm flip-chip LEDs available in the market.

“Our 365nm flip-chip can be manufactured with the conventional lateral LED chip manufacturing line, and the chip process is very simple and well-proven technology in the market. Our products will have very high competitiveness in performance as well as price over the existing vertical chip based 365nm LEDs, “said Dr. Sung-min Hwang, CEO of Soft-Epi.

He added, “Our 365nm flip-chip will have higher packing density on the chip-on-board package, and this will be a very strong advantage for optical module design which allows one to improve uniformity as well as intensity.” And he also remarked, “Our AlGaN template technology can be extended to the LEDs in deeper wavelengths (320~360nm) and the related products will be launched within this year. “

Disclaimers of Warranties
1. The website does not warrant the following:
1.1 The services from the website meets your requirement;
1.2 The accuracy, completeness, or timeliness of the service;
1.3 The accuracy, reliability of conclusions drawn from using the service;
1.4 The accuracy, completeness, or timeliness, or security of any information that you download from the website
2. The services provided by the website is intended for your reference only. The website shall be not be responsible for investment decisions, damages, or other losses resulting from use of the website or the information contained therein<
Proprietary Rights
You may not reproduce, modify, create derivative works from, display, perform, publish, distribute, disseminate, broadcast or circulate to any third party, any materials contained on the services without the express prior written consent of the website or its legal owner.

Tokushima, Japan - 6 March 2024: Nichia, the world's largest LED manufacturer and inventor of the high-brightness blue and white LED, has started mass production of the new UV-B (308nm) and UV-A (330nm) LEDs in its popular 434 Series packa... READ MORE

New XLamp® S Line LEDs enhance growth, last longer, lower energy costs Horticulture and other forms of agricultural lighting require application-tuned ratios of spectral content, high efficacy and long lifetimes. Whether you are interested... READ MORE