Product Introduction
The quartz ring is a ring-shaped sputtering target made primarily of high-purity silicon dioxide (SiO2), widely used in vacuum coating processes for optoelectronics, semiconductors, and optical films. Quartz rings feature high light transmittance, low thermal expansion coefficient, and excellent chemical stability, with a refractive index of 1.46 (at 500nm) and transparency from 200-9000nm. They maintain structural stability under high temperature and vacuum conditions, making them important materials for optical coatings, conductive films, and protective films.
Outstanding Characteristics of Quartz Ring
High Purity Material
Utilizing high-purity quartz is critical for defect reduction, ensuring superior thin-film quality and integrity.
Excellent Optical Properties
It has high transmittance in the ultraviolet, visible, and infrared wavelengths, making it suitable for optical coating applications.
Strong Thermal Stability
It is resistant to high temperatures and not easily cracked due to thermal stress with a low thermal expansion coefficient which makes it an ideal choice for high-energy sputtering environments.
Chemical Inertness
It has excellent corrosion resistance to acids, alkalis, and most chemicals, ensuring purity during coating process.
Wide Applications of Quartz Ring
Optical Device Manufacturing
Used in the deposition of protective or anti-reflective layers for optical lenses, filters, and coated glass.
Semiconductor Manufacturing
Used in semiconductor processes for the preparation of insulating layers, meeting high purity requirements.
Photovoltaic Industry
Used as a functional layer material in photovoltaic cell modules to enhance the light transmittance and weather resistance.
Display Devices
Used in the deposition of protective films and insulating films for flat-panel displays and touch panels.
Decorative Coatings
Used to prepare wear-resistant, corrosion-resistant, and high-transmittance decorative films, improving aesthetics and extending service life.
Technical Characteristics
Purity
99.99%
Refractive Index
1.46（500nm）
Transparency Range
200-9000nm
Application Fields
Optical Device Manufacturing
Semiconductor Manufacturing
Display Devices
Decorative Coatings
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