The top 3 quartz material suppliers in the world

Quartz material is one of the essential materials for high-tech industries such as semiconductors and photovoltaics. The following introduces several global high-tech quartz material suppliers and their products.

Ⅰ. Sibelco's typical quartz and application areas：

1. IOTA high purity quartz sand series: IOTA 4, IOTA 6, IOTA 6-SV, IOTA 8 and IOTA STD-SV

Low alkali content ensures high viscosity of fused quartz, provides high softening point and low crystallization rate characteristics, extends component life and reduces total cost of ownership. Stable low boron (B) and trace transition metals help maintain silicon purity during crystal growth and wafer processing. Typical applications: used in the production of fused quartz crucibles and semiconductor quartz products.

2. IOTA CG series:

It is the standard in the photovoltaic crucible industry and is very suitable for long-term wire drawing and multi-ingot wire drawing. In the most demanding applications, it can be used as a crucible liner to ensure the purity of the silicon ingot.Typical application: used to manufacture crucibles for CZ single crystal silicon growth.

IOTA series high purity quartz related indicators (ppm)：

Ⅱ. TQC's typical quartz and application areas：

The high-purity quartz produced by TQC is one of the purest quartz in the world and is mainly used in semiconductors, photovoltaics, optics and other fields. And the SiO2 content can reach more than 99.998% or even higher. It ensures the stability and reliability of the product in various high-end applications.The high-purity quartz sand raw materials of Norway TQC Company are mainly produced from the granite pegmatite in the Spruce Pine area of the United States (which belongs to the same ore belt as the quartz raw materials used by Unimin Company of the United States) and the Drag granite pegmatite in Norway. After the quartz resources are mined, they are processed in Norway. The Drag granite pegmatite belt in Norway is composed of dozens of pegmatite ore bodies. 

The pegmatites are produced in the surrounding granite gneiss in a vertical tube shape. The average particle size of quartz particles in pegmatite is about 6mm, and the content of fluid inclusions and mineral inclusions in quartz is very small. In the production process, the high-purity quartz products processed from quartz resources from the United States can meet the requirements of semiconductor sand and photovoltaic sand, while the Norwegian products are more suitable for the fields of optics and electric light sources.

Typical product examples:

✔ High-purity quartz sand:

✔ Model: NC4AF

✔ SiO₂ content: ≥99.998%

✔ Particle size range: 80-200 mesh (customizable according to customer needs)

✔ Uses: widely used in optical fiber manufacturing, semiconductor materials, quartz glass and other fields.

Ⅲ. Momentive's typical quartz and application areas：

Momentive is a leading global manufacturer of high-purity fused quartz solids. Its typical high-precision quartz products cover multiple models:

1.Semiconductor quartz rods:

Mainly used for quartz boats that carry wafers in semiconductor high-temperature manufacturing processes. Made of ultra-pure quartz material, high quality, flawless and low expansion rate. Flexible manufacturing process to meet customers' stringent dimensional control requirements.

2.Fused quartz tubes:

Combining high purity with excellent high-temperature properties, it is an ideal choice for silicon wafer processing furnaces. Low hydroxyl (-OH) content ensures stability at high temperatures. High purity ensures a pure environment during silicon wafer processing.

3.Quartz ingots:

The trace element content is only at the ppm or ppb level, which can create the clean environment required for wafer processing and is an ideal choice for high-temperature applications. The trace element content is extremely low, creating the clean environment required for wafer processing. After special processing, it has a low hydroxyl (-OH) content and exhibits excellent performance. Large size, suitable for applications of various sizes from small precision components to large telescope lenses.