What is it? Spherical Quartz Powder ? After purification and ultrafine milling, spherical quartz powder is made out of natural quartz stones. Under a high temperature field, the phase, crystal form and structure change instantly from solid state to liquid state and then back to solid state. Amorphous powder is made from irregularly angular particles and transformed into regular spherical grains.
The key features of Spherical Quartz Powder
Spherical quartz powder offers the benefits of a smooth surface and large specific area. It also has high chemical stability. First, the spherical material is very fluid. The resin is mixed evenly with it to form a film. The greater the amount of quartz powder used to fill the mold, the lower its thermal conductivity. Also, the molding compound’s thermal expansion coefficient will be smaller. Additionally, single crystal silicon has a higher thermal expansion coefficient. This will improve the performance of electronic components. Second, the stress in spherical powder is less than half that of angular powder. Furthermore, the molding compound made with spherical Quartz powder has the lowest stress concentration, and the strongest. Finally, the surface of spherical quartz powder is smooth. The friction coefficient is low and the wear on mold is minimal, which can increase the mold’s life expectancy by more than one-third.

Spherical Quartz Powder Spherical SiO2 Properties
Other Titles	Fused quartz, spherial quartz, spherical SiO2, silica
No.	7631-86-9
Combination Formula	SiO2
Molecular Weight	60.09
Appearance	Powder White
Melting Point	1,600deg C (2,912deg F)
Solubility of in water	N/A
Density	2533 kg/m3
Purity	99.5-99.9%
Particle size	10-30nm
Boling Point	2,230deg C (4,046deg F)
Specific heat	N/A
Thermal Conductivity	N/A
Thermal Expansion	N/A
Young’s Modulus	N/A
Exact Mass	59.9668 g/mol
Monoisotopic	59.967 D

Spherical Quartz powder’s uses
The applications of spherical powder quartz are many. Electronic packaging is the biggest market for it. Electronic packaging is an industry that supports integrated circuits. As integrated circuits become more sophisticated, the requirements for packaging materials are rising. Packaging forms are continually optimized and up-dated to meet these new requirements. The main materials for electronic packaging include substrate material, plastic packing material, lead frame, and solder. Plastic packaging is a low-cost and easy-to-make product that can be mass produced in large quantities. This has helped it grow rapidly. Plastic packaging is responsible for 95% worldwide integrated circuit market. %above. EMC is the main plastic encapsulant. It houses more than 95% microelectronic component.
1. Microelectronic packaging must be able to withstand high levels of moisture, stress, low alpha-rays, dip soldering, reflow soldering, and plastic sealing. To address this issue, epoxy molding compounds must be doped in the resin matrix with inorganic materials. The most common inorganic materials used currently are quartz micropowder (silica micropowder). Large-scale and ultra-large scale integrated circuits now have more stringent requirements for packaging materials due to their rapid growth. Quartz powder, an important support material for EMC requires that its particle size be within the required packaging range. Additionally, it must be pure. High and low radioactive elements are essential for particle shape. Spheroidization requirements apply to quartz powder.
2. Spherical silicon nanopowder has a great shape and can also meet many technical requirements for high-end integrated circuits. Its use can significantly reduce the thermal expansion coefficient and dielectric constant of plastic sealing materials. Also, it has a great rigidity, wear resistance. Weather resistance, impact resistance. Tensile resistance. Moisture resistance. UV radiation resistance. The main use of spherical Quartz powder in electronic packaging is also to manufacture optical fibers, electronic inks, high-end cosmetics, precision ceramics, electronic components and precision grinding, as well as fillers for special paint coats.
The main supplier of Spherical Quartz Powder
Tech Co., Ltd. () is a professional oxide powder Over 12 years’ experience in chemical product development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
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