Polypropylene (PP), as one of the five general plastics, is widely used in daily life. PP Resin,Polypropylene,PP Granules,PP Plastic Granules HENAN JINHE INDUSTRY CO.,LTD , https://www.speciatyelement.com
In recent years, China, the United States, the European Union and other countries and regions around the world have successively implemented the ban policy. The market for LED energy-saving bulbs has been further promoted, and the prices of LED lighting products have continued to decline. These have directly led to the rapid increase in the penetration rate of LED lighting. In the three to five years from 2014, the LED lighting industry will usher in explosive growth and enter the gold for three years. The manufacturing technology of the upstream LED chip as the leading link and the corresponding packaging technology jointly determine the future development speed of LED in the field of lighting.
Flip-chip LED chips should emerge as the upstream chip production capacity continues to expand, the packaging industry has entered the era of meager profit, many companies in order to grab customers big price cards, fierce price competition and disorderly industry ecological chain prompted the industry to start demand New packaging process.
The innovation and application of flip-chip LED chip technology with the advantages of improving luminous efficiency and improving heat dissipation capability is the focus of today's packaging companies.
Flip-chip has better heat dissipation than preloaded chips. At the same time, we have epitaxial design, chip process and chip graphic design that are compatible with flip-chip bonding. The chip products have the advantages of low voltage, high brightness, high reliability, high saturation current density, etc., and the integration of protection circuits on the flip-chip substrate can significantly improve the reliability and performance of the chip; Compared with the vertical structure, the flip-chip bonding method makes it easier to realize ultra-high-power chip-level modules and multi-function integrated chip light source technology, which has great advantages in LED chip module yield and performance. In terms of light efficiency, the flip-chip structure avoids light absorption and electrode shading of the conductive layer on the P electrode, and can also improve the light efficiency by providing a reflective layer on p-GaN.
In the long run, flip-chip will reduce the process of packaging and produce a certain squeeze on the packaging industry. In addition, flipping the chip may result in an increase in the driving power of the chip, which in turn reduces the actual consumption of the chip by the lighting backlight application, and changes the long-term demand for the chip for the lighting application.
The application of domestic flip-chip welding technology is the earliest domestic application of flip-chip bonding technology to Jingke Electronics on LED chips. After years of research and development and innovation, it has become a leading brand of high-power high-brightness LED integrated chips for mature flip-chip welding technology in China. . Jingke Electronics adheres to the independent research and development innovation route, has outstanding core technology advantages, and has added more than 5,070 core technology patents obtained or passed the preliminary examination. The products are widely used in commercial lighting, road lighting, urban lighting, architectural lighting, Indoor lighting, special lighting, etc. In 2013, it launched a chip-level LED lighting overall solution, which can complete a part of the traditional packaging process or save the traditional packaging process through the new chip-level process in the LED chip manufacturing process, so that the final package size of the LED is reduced. more stable.
Jingke Electronics said that if it is from the perspective of cost price, flip-chip LED chips are still more expensive than traditional dressing. Although it reduces the process of packaging, the process is more complicated; if the final lm/$ indicator Look, flip-chip LED chip heat dissipation and current distribution are better than traditional dress-up LEDs, which can increase current density and have advantages.
At the same time, Jingke is also the earliest enterprise in China to carry out gold-free wire packaging based on flip-chip welding technology. Among them, chip-level white light high-power LED light source products without gold wire package are at the leading level in the world.
At present, Jingke Electronics' products based on the flip-chip process-free gold-line packaging platform involve high-power single crystal devices, COB modules, mobile phone flash lamps, direct-lit backlights, and optical components. Product brand is easy series: Yi Xing (3535), Yi Hui, Yi Xing, Yi Yao. Among them, Yi Xing has been included in the Guangdong Provincial Government procurement catalogue, and the Zhonglong Sichuan Tunnel Project using Yixing products has won 100 honors in global lighting engineering. It has been in business for 3 years since its listing in 2011 and has been updated to the third generation. And in 2013, the product has passed LM80 certification, Guangdong Province standard optical component anion product certification.
The new series of easy-to-open series has created the era of gold-free wire packaging, and the high reliability guarantees the popularization of LED life, and at the same time leads the trend of technological innovation in the LED industry.
Continuous innovation breaks through the technical bottleneck However, the development of new technologies is not smooth, and Jingke admits that there are some technical difficulties in the chip manufacturing process and chip packaging process. However, with years of technical accumulation and a high degree of intellectual property protection awareness, Jingke is here. The two directions will break through one by one.
Flip-chip LED technology currently has greater advantages in high-power products and integrated packaging. In small and medium-power applications, cost competitiveness is not very strong. Flip-chip technology is very mature in the field of IC, but in the LED exploration stage, this stage requires a lot of R&D investment, and the current strength of the general manufacturers is not enough to support. Dr. Xiao Guowei, the managing director of Jingke, believes that LED should reduce the cost of the system, improve the technology, master the high-end core technology, and improve the high added value of the product to make the product cost-effective, so that the enterprise can stand firm in the market and achieve long-term development.
Polypropylene is a plastic raw material with minimal density, and its appearance is colorless and translucent particles. As a food grade plastic, it is widely used in food packaging, such as foam plastic boxes, PP plastic cups, and so on. Polypropylene can be divided into five categories according to its main uses: PP injection molding, PP drawing, PP fiber, PP film, and PP pipe.
1. PP injection molding:
PP injection plastic is mainly used in small household appliances, toys, washing machines, auto parts, etc.
In recent years, the improvement of people's living standards and the implementation of China's second tire have led to a gradual increase in the demand for polypropylene injection molding in the downstream. Different injection molding varieties also have differences in their demand in the low and high seasons. For example, the demand for injection molding pots and barrels is relatively strong in the school season, while the demand for accessories and gifts is booming due to the impact of many festivals. In general, PP injection molding is relatively frequently used.
2. PP wire drawing:
Polypropylene wire drawing is mainly used in plastic woven products. The daily use of container bags, woven bags, food bags and transparent bags are all PP wire drawing products.
Since the implementation of domestic environmental protection in 2017, the demand for packaging of cement and building materials has been declining, and the plastic weaving industry has been greatly impacted. Accordingly, the PP plastic weaving market is under pressure. In the future, the proportion of PP plastic weaving in the overall use of polypropylene will continue to decline, and the plastic weaving industry will gradually expand into large packaging bags with high capacity, high quality or small packaging bags with low capacity and low content.
3. PP film:
Polypropylene film is generally divided into BOPP film, CPP film and IPP film. PP film is mainly used for food packaging.
Compared with PE packaging bags, PP film food packaging bags have better transparency, greater hardness and more high-end appearance. Downstream demand is mainly concentrated around festivals and holidays.
4. PP fiber:
Polypropylene fiber is a kind of fiber product made from polypropylene by melt spinning. It is mainly used in decoration, clothing and other fields. Since the implementation of the second child in 2011, the downstream wet wipes, diapers and other maternal and infant supplies have increased sharply, and the domestic fiber material has been in short supply.
According to data statistics, the global demand for fiber will continue to grow significantly, and the composite annual growth rate is expected to be 2.6% from 2017 to 2025. Therefore, the downstream demand for PP fiber will continue to grow in the later period.
5. PP pipe:
PP pipe material is mainly used in water supply and heating systems due to its non-toxic and high-temperature resistant properties. Compared with PE pipe material, PP pipe material has light weight, convenient transportation, good environmental protection performance and can be recycled.