Quartz Wafer Boat Carrier for Semiconductor Wafer High Temperature Treatment. Ultra-high Purity Raw Material,SiO2content reaches 99.99% to 99.9999%, with extremely low impurity content, ensuring stable performance in high-end precision equipment. Super High Temperature Resistance: Continuous working temperature up to 1200, short term maximum temperature 1500, suitable for various high temperature heating and reaction environments. Excellent Thermal Shock Resistance: Thermal expansion coefficient is only 1/12 of ordinary glass, capable of withstanding drastic temperature changes without cracking. Strong Chemical Corrosion Resistance: Resistant to strong acid, aqua regia and high-temperature gas erosion, far more stable than stainless steel and ceramic materials. Good Optical & Insulation Performance: Full-spectrum light transmission and excellent electrical insulation, widely used in optics and electronic industries.