Quartz Glass Blog

Introduction Quartz glass, widely referenced as fused silica across global industrial contexts, is a high-performance engineering material that enables critical processes in semiconductor manufacturing, UV disinfection, high-temperature furnace operations, and precision optics. Unlike conventional glass formulations that rely on mixed raw materials and fluxing additives, quartz glass is derived almost exclusively from silica feedstock, processed at extreme temperatures to deliver a unique combination of thermal, optical, and chemical [...]

Introduction Quartz wafer carriers are critical components used in semiconductor and solar manufacturing equipment to hold and transport wafers during high-temperature processes. Designed for diffusion furnaces, oxidation systems, LPCVD, PECVD and photovoltaic processing equipment, quartz wafer carriers provide stable wafer positioning while maintaining thermal performance, chemical resistance and contamination control. Unlike conventional glass materials, fused quartz offers excellent thermal stability, low thermal expansion and high resistance to process [...]

Introduction A quartz crucible is the single most consumed precision component in monocrystalline silicon production, and also one of the least understood by procurement teams outside the crystal-growing process itself. It is not a permanent fixture like a furnace or a pulling mechanism — it is a high-purity, single-use vessel that dissolves, deforms, and is discarded after one growth run, then must be replaced again for the next. [...]

Quick answer: JGS1, JGS2, and JGS3 are the three standard grades of optical fused silica defined under China's GB/T 18371 standard. The difference comes down to how each is made and how much hydroxyl (OH) and metallic impurity it carries — which in turn decides what wavelengths it transmits. Choose JGS1 for deep-UV work (down to ~185 nm), JGS2 for general UV–visible optics at a lower price, and [...]

Every monocrystalline solar cell begins and ends its early life inside fused quartz. From the moment polysilicon is melted to grow an ingot, through the diffusion, deposition, and etch steps that turn a bare wafer into a working cell, the silicon is held, carried, and surrounded by high-purity quartz glass. The reason is the same one that drives quartz use across the semiconductor world: quartz survives the extreme [...]

The wet bench is where semiconductor and solar wafers are cleaned, etched, stripped, and rinsed in heated chemical baths — and almost every part that touches the chemistry is made of high-purity fused quartz. This guide is built to be complete: it covers every major wet-process step, the chemistry and temperature each one runs at, and every quartz component used across the bench, with the design detail you [...]

Most people in the industry treat quartz boats as standard consumables — interchangeable, low-tech, easy to procure. They're wrong. This guide breaks down exactly how every quartz product works inside a semiconductor fab, why the design details matter far more than most engineers realize, and what happens to yield when any part of the system is mismatched. There's a moment that most process engineers encounter at least once [...]