Development Trends of Silicon Micropowder Industry

   Ultrafine silicon powder has the characteristics of small particle size, large specific surface area, high chemical purity, and good filling ability. With its superior stability, reinforcement, thickening and Thixotropy, it has been widely used in many fields such as copper clad laminate, adhesive, rubber, coating, engineering plastics, medicine, paper making, daily chemicals, etc., and has provided the foundation and technical guarantee of new materials for the development of its related industrial fields, enjoying the reputation of "industrial monosodium glutamate" and "the origin of material science". Ultrafine silicon powder material is a new material that has gradually developed in recent years. High purity silicon powder generally refers to silicon powder with SiO2 content higher than 99.9%, which is mainly used in IC integrated circuit, quartz glass and other industries. Its high-end products are more widely used in large-scale and Very Large Scale Integration, optical fiber, laser, aerospace and military, and are indispensable important materials for high-tech industries. Some developed countries even consider it a strategic goal to achieve. Crystalline silicon micropowder will become the fundamental material in the electronics industry in the 21st century, with a rapid growth in demand and promising market prospects. The demand for ultra-pure silicon micropowder in the world is also rapidly developing with the development of the IC industry, and it is estimated that the world's demand for it will grow at a rate of 20% in the next 10 years.

    In recent years, the computer market and the network information technology market have developed rapidly, the CPU integration has become larger and larger, the computing speed has become faster and faster, and home computers and Internet users have become more and more. As a technical support, the microelectronics industry requires not only ultra-fine, but also high purity and low Radioactive element content for large-scale and Very Large Scale Integration packaging materials, especially for the spherical shape of particles. At present, there are few enterprises that can produce spherical silicon micro powder, and only some technologically advanced enterprises have production capacity. The spherical silicon powder used for domestic epoxy plastic sealing materials mainly depends on imports. According to the development plan of China's semiconductor integrated circuits and devices, in the next 4-5 years, China's demand for spherical silicon powder will reach more than 100000 tons. At present, the domestic consumption of spherical silicon powder only used for plastic sealing materials of Very Large Scale Integration has exceeded 3000 tons. Make technical breakthroughs in this material, and create high-tech products with independent intellectual property rights as soon as possible, It has significant economic and social significance.