Intelligent lighting LED technology
LED itself has huge product advantages and good prospects for the future development of the industry. This is a fact that has been widely recognized and will not be repeated here. We focus on the current state of the industry. To be exact, in the past ten years, LEDs have not been in the Chinese market! LED lamps do save energy, but they are 5-8 times higher than energy-saving lamps. Users always use the intersections that are used and not used. However, with the advancement of technology, the reduction of costs and the drive of national policies, this situation has been improved. LED lamps are gradually entering our daily life, from LED street lights , LED decorative lights, LED table lamps and other market sales prices, sales. We can see one or two.
However, in the analysis of various industrial data, we know that the development of the domestic LED industry is still more and more eager to oversupply. The grim market is not only technical and financial issues, but also bigger. The problem is the market, and the market determines the rise and fall of an industry. As can be seen from the current LED industry trends, the focus of the LED industry is on LED lighting applications, especially smart lighting and health lighting have become the new market focus of LED lighting. The popularity of the LED lighting market has spawned many emerging technologies, such as COBLED, LED chips without packaging, and LED flip-chip technology, which have attracted wide attention in the industry.
In general, the technical advantages of LED chip flipping are obvious. Compared with the positive chip, the flip chip has better heat dissipation function. At the same time, we have epitaxial design, chip process and chip suitable for flip chip bonding. Graphic Design. The chip products have the advantages of low voltage, high brightness, high reliability, high saturation current density, etc.; together with the integrated protection circuit on the flip-chip substrate, the chip reliability and performance are obviously helpful; in addition, the formal wear Compared with the vertical structure, the flip chip soldering method makes it easier to realize the ultra-high power chip-level module and the multi-function integrated chip light source technology, and has great advantages in the LED chip module yield and performance.
The impact of flip-chip LED chips on traditional LED chips: Chip flip-chip technology is a very popular concept at present, and its advantages are believed to be known to everyone. But the biggest reason why it is not popular now is fourfold:
First, any new technology will take a while to shape, and ultimately the market will determine his life.
Second, flip-chip LEDs subvert the traditional LED process, from chip to package, which will require higher equipment. Take the package and say that the cost of the front-end equipment that can do flip-chip will definitely increase a lot. The threshold is so that some companies simply cannot access this technology.
Third, flip-chip LEDs are still incomplete in technical processes and material processes, such as the technical process of flip-chip LEDs and the thickness of gold wires and high temperature conditions, which makes it easy to flip-chip LEDs during reflow soldering. Because the temperature is too high, it leads to the death of the lamp, which determines the practical value and market acceptance of the flip-chip LED to a certain extent.
Fourth, high prices are also a very important constraint.
What is the modularization of LED light sources? The LED light source, the heat dissipating component and the driving power source are assembled and formed, and the integrated assembly of "light, electricity and heat" is integrated. This makes the product simple and cheap, and is a trend in the future development of semiconductor lighting. By modularizing the LED light source, the intermediate link from the chip to the system can be reduced. If the intelligent driver is added to the LED light source module, intelligent LED lighting can be easily realized, which greatly promotes the rapid development of the LED lighting industry in terms of cost reduction and manufacturing process.
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