New view of blue ocean market: Liansheng photoelectric and Otway focusing on UVLED vehicle market

Optical integrated silicon substrate

HPO has the world's first silicon substrate bonding technology and patents, which is used in wafer fabrication process to replace the substrates used in the growth of crystals, such as sapphire substrates and GaAs substrates, to enhance the reliability of components by using high heat dissipation and high conductivity. It can achieve better output efficiency under high current operation. HPO makes use of this key technology to produce SiliLED product series (SiliLED5 phosphor red and yellow light, SiliLED8 arsenide infrared light, SiliLED9 nitride blue green light, SiliLED2 nitride ultraviolet light). It is a professional chip manufacturing company in the world which can provide full spectrum vertical structure LED.

Vehicle lighting for the LED lighting application of the blue ocean market, Liansheng photoelectric has been used for automotive lighting for a long time. At the very beginning of its establishment, the company has developed in cooperation with domestic and international factories. It is the first company to apply silicon substrate vertical structure LED to vehicle in Taiwan. It has accumulated many years of application achievements. It has excellent reputation in the industry. In addition to the original phosphide red and yellow products, it should be more active in layout of nitrides and white lights. Products in the headlights, daylight lights market. Recently, cooperating with domestic manufacturers to develop vehicle LED headlamps has passed various vehicle certification and trustworthiness specifications, such as TS16949 and AEC-Q101. Figure 1 uses the high brightness LED headlights of Liansheng products. The operation can reach 1200 lumens under 1A, and the product performance keeps pace with the international large plant products.

With the importance of vehicle safety and the development of smart cars, the application of IR products will be more extensive. Liansheng photoelectric 850/940nm dual quantum well structure (DualJunctionMQWs) high-power products, under the 350mA current operation, the output power can reach 370mW. At present, we also actively promote the use of vehicle night vision system, win SiliLED5, SiliLED9 and SiliLED8 products, and help customers create better products in the car market. Enhance market competitiveness.

For products that are invisible, UV products require more stringent requirements for high power, high light flux density and stable reliability. LED, a vertical silicon substrate bonding technology, is very suitable for high efficiency output under high current operation. Take 80mil395nmUVLED as an example, under the 2.5A operation, WPE reaches 48%, and it can operate steadily for a long time when the output power density is up to 12W/cm2. The UVLED market is biased towards custom-made demand making. With the close cooperation with the system manufacturers, the joint market has developed a 5050 package UVLED module (385-405nm), making it used in printing ink drying and curing, and in 2.5A current drive. The output can reach 5000mW light output (Fig. two, FIG. three).

The composition of 365nmUV is near the limit of InGaN material. The reliability of the product is more important, such as the quality of the epitaxial layer, the technology of wafer fabrication and the optimization of electrode design. Liansheng optoelectronics has been working on UV products for many years. The new version of 46mil365nmUV adds high temperature and low indium gallium high speed electron diffusion structure, and matches the new electrode of n-AlGaN. It improves the transverse conduction of electrons, solves the problem of poor current diffusion of n-AlGaN, and improves the overall brightness. Grain size, the operating temperature is also spread to the whole grain evenly, thereby enhancing the reliability of the new version of 365nmUVLED (Fig. four). In terms of light intensity distribution, the new 365nmUVLED light intensity occupies 80% of the total area in the 1500~2000a.u. area, while the old 365nmLED intensity accounts for about 55% of the total area in the 1500~2000 area, and the other 35% is distributed in 1000~1500a.u.. Therefore, the uniformity of the light and the overall light intensity show that the new version has better design. Light intensity distribution (Fig. five).

Liansheng optoelectronics has been deep tillage in high-power vertical LED chips for ten years, accumulating abundant technical strength and complete patent layout, and gaining customer's recognition and support for the products. Looking forward to the future, we hope to become an ideal brand of high stability and reliability photoelectric components. In the near future, we will introduce new strategic shareholders and cooperate in equipment upgrading and product integration in the future. We believe we can inject new energy into the development of Liansheng. Dr. Zhang Zhisong, chairman of Liansheng optoelectronics, said that in the highly competitive market of photoelectricity and semiconductors, Liansheng optoelectronics, which is based on the technology of deep plowing of visible light products for many years, is also applied to the development of new products, which are invisible light, and can also improve the luminous efficiency and product stability greatly.

At present, the high-end products of IR and UV have been recognized by customers. We hope to play the craftsmen spirit in the Red Sea competition of LED, focusing on the improvement of quality and efficiency, creating a new blue ocean of products, and striving for the development of Taiwan's green energy industry.

UVT high temperature eutectic UV packaging

There are UV customers' integrated needs for products. HPO provides UV packaging and system module integrated product services in a bid to provide customers with better product experience. The encapsulation is packaged by UVT (ortech), a full range of product packages, and the UV packaging band is powered by 360~430nm and power from 1W~30W. High power UV single crystal packaging products, a full range of UVT, specifically for ultra high power eutectic process for current carrying capacity far more than 2 times more than the average nano silver adhesive, providing customers cost-effective UV package. UVT unique packaging services provide customers with diverse packaging product options, K1, 3535, 5050... Etc., *UVTUV product summary:

UVT not only provides a variety of UV packaging products, but also provides synchronized eutectic process products with leading plants in the world, overcoming the fact that Sikkim eutectic is limited by plate evenness and Sikkim thickness and cost factors, and can not achieve large-sized packaging. In the general industry, it also uses silver glue process for large scale packaging at the present stage, HPO At present, we have begun to provide single crystal customized eutectic UV products to help customers occupy advanced UV applications.

The difference of current tolerance between *UVT eutectic process and silver gum process is 200% of current carrying capacity.

For UV module development, UVT also helps customers provide free UV optical simulation, mechanism design and rich experience in UV module development, enabling customers to develop products in the most resource saving way.

(UVT optical simulation service)

In response to the high threshold and low rate of UV market, UVT AUTECH is committed to providing LED based professional high power packaging plant, which is a service oriented company. The team has many years experience in UVLED packaging research and development. The UV chip has provided a competitive UVA365~430nm product mix, and it can also be flexibly tailored to customization. High performance and differential products are developed on the packaging products, which enter a small but high technology and high value added market. The encapsulation capability is based on the aluminum nitride composite ceramic with the rigid packaging of eutectic process. It has excellent resistance to high current drive and UV resistance, and can reach 5000mW ultra high power output under 8A current drive. Combined with Liansheng photoelectric high efficiency UV wafer and packaging service.

Combined with UVT (ortech) professional UV packaging, ottway technology focuses on the main market (1) specialized UV LEDTotalsolution (2) circuit free vehicle LED packaging (3) circuit and LED integrated LEDICOB package (4) differentiated LED customized packaging products, to build ODM service LED packaging plant.

UltravioletTechnology (UV professional packaging) Otway Polytron Technologies Inc

2, 66-11, 2 section, Nan Jiao Road, Taoyuan City, Taoyuan city.

Tel: (03) 2122158Fax: (03) 2122659

Email:mark.lin@uvtled.comWeb:www.uvtled.com

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