The preparation and application of Spherical Quartz Powder
What is Spherical Quartz Powder?
Spherical quartz powder has excellent properties such as smooth surface, large specific surface area, high hardness and stable chemical properties. First of all, the spherical powder has good fluidity and is evenly mixed with the resin to form a film. The amount of resin added is small, the filling amount of quartz powder is high, and the mass fraction can reach up to 90.5%. The higher the filling amount of quartz powder, the lower the thermal conductivity, and the smaller the thermal expansion coefficient of the molding compound. The closer to the thermal expansion coefficient of monocrystalline silicon, the better the performance of the electronic components produced. Secondly, the stress of the spherical powder is only 60% of the stress of the angular powder, and the plastic molding compound made of spherical quartz powder has the least stress concentration and the highest strength. Finally, the spherical powder has a smooth surface, low friction coefficient, and low wear on the mold, which can prolong the service life of the mold by more than one time.
Spherical Quartz Powder preparation:
Spherical quartz powder
is purified and ultra-finely pulverized from natural quartz stone, and then passes through a certain high-temperature field to make its phase, crystal form and shape change instantaneously from a solid-state to a molten state and then to a solid-state. A powder is obtained by changing from crystalline state to amorphous state, and from irregular angular particles to regular spherical particles. Its preparation methods currently generally include the high-temperature plasma melting method, high temperature melting spray method and gas combustion flame method.
Spherical Quartz Powder applications:
Spherical quartz powder has a wide range of applications, and its use as an electronic packaging material is the largest market for its application. Electronic packaging is the supporting industry of integrated circuits. With the development of large-scale and very large-scale integrated circuits, integrated circuits are becoming more and more sophisticated, and the requirements for packaging materials are getting higher and higher, and the packaging forms are continuously optimized and updated. The three main materials of electronic packaging are substrate materials, plastic packaging materials, lead frames and solders. Because of its low cost, simple process, and suitablity for mass production, plastic packaging has developed rapidly since its birth, and its share of packaging is increasing. At present, plastic packaging accounts for 95% of the integrated circuit market in the world. %above. Among plastic packaging materials, epoxy plastic packaging materials (EMC) are the mainstream of integrated circuit packaging at home and abroad, and more than 95% of microelectronic components use epoxy plastic packaging.
In microelectronics packaging, the main requirements are high moisture resistance, low stress, low alpha radiation, resistance to dip soldering and reflow soldering, and good plastic packaging performance after the integrated circuit is packaged. In response to this, epoxy molding compounds must be doped with inorganic fillers in the resin matrix. Almost all inorganic fillers currently used are quartz micro powder. With the rapid development of the microelectronics industry, large-scale and ultra-large-scale integrated circuits have increasingly higher requirements for packaging materials. As an important support material for EMC, quartz powder not only requires its particle size to meet the specific range of packaging but also requires its purity High, low content of radioactive elements, especially the requirements for spheroidization of particle shape.
Spherical Quartz Powder supplier
(aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. Currently, our company has successfully developed a series of materials. Spherical Quartz Powder produced by our company is of high purity and good quality. Send us an email or click on the needed products
to send an inquiry.