Electronic Grade Silica Sol
Electronic grade silica sol is a highly dispersed and stable system in which nano-scale silica particles are distributed in water or other solvents. The product features ultra-high purity, reaching up to 99.999% (5N) or higher. Core parameters such as particle morphology, particle size distribution, solid content, dispersion medium, and pH value can be customized according to customer requirements, offering excellent dispersion stability and process adaptability.
Product Technical Specifications
Silica Purity: ≥99.999%
Particle Spheroidization Rate: ≥99.0%
Particle Size (D50): 10nm to 400nm (customizable)
Solid Content: 5% to 30%
Solid Particle Morphology: Regular spherical shape
Radioactive Element Control: Uranium (U) < 0.1 ppb, Thorium (Th) < 0.1 ppb
pH Range: 8 to 10
Preparation Process
The company adopts the sol-gel method to prepare electronic grade silica sol. This process enables precise control over particle nucleation and growth, ensuring the product achieves high purity, high spheroidization rate, and excellent batch-to-batch consistency, fully meeting the stringent quality requirements of high-end application fields.
Main Application Fields
Semiconductor Manufacturing
In chip manufacturing and packaging, electronic grade silica sol serves as a key consumable in Chemical Mechanical Polishing (CMP) processes. With its high purity and excellent dispersibility, it efficiently removes impurities and micro-defects from wafer surfaces, significantly improving the performance and yield of semiconductor devices.
Optical Device Manufacturing
As a precision polishing and cleaning material for optical components, it effectively eliminates micro-scratches and contaminants on surfaces, significantly enhancing the transmittance and imaging clarity of optical lenses. Additionally, in liquid crystal display manufacturing, it can be used to prepare high-quality insulating layers and transparent conductive layers, ensuring display performance and operational stability.
Solar Cell Manufacturing
Used in the preparation of surface coatings for solar panels, it optimizes the surface optical structure to effectively improve anti-reflection properties and light absorption efficiency, thereby increasing the overall photoelectric conversion efficiency of solar cells.
Microelectronic Packaging
In advanced packaging processes, electronic grade silica sol can be used as a precision filling material to fully fill micron-scale gaps between chips and packaging substrates, providing reliable mechanical support and electrical isolation while blocking the intrusion of moisture and external contaminants.
Catalyst Carrier
Relying on its high specific surface area and tunable pore structure, it serves as an ideal catalyst carrier material. By loading different active components, high-efficiency catalytic composite materials targeting specific reactions can be prepared.
Coatings and Inks
Applied as a functional additive in high-end coating and ink systems, it significantly improves dispersion stability and enhances coating hardness, wear resistance, and adhesion. At the same time, it can be used to develop specialty functional coatings such as self-cleaning coatings and anti-fog coatings.
Other Frontier Fields
Furthermore, electronic grade silica sol is widely used in the preparation of high-performance ceramics and specialty glass, as well as in biomedical fields such as biosensors and medical devices, demonstrating broad application prospects.
