Semiconductor raw materials

Electronic-grade bulk polycrystalline silicon is a high-purity semiconductor raw material produced through a modified Siemens process. It has a dense, blocky rock-like morphology, with a particle size typically ranging from a few centimeters to tens of centimeters. This product is prepared using a rigorous chemical vapor deposition process, achieving an ultra-high purity of 99.9% to 119.99%, making it a core raw material for Czochralski single-crystal silicon rod pulling and wafer manufacturing. Its bulk form exhibits excellent purity stability and is the mainstream silicon material form in the semiconductor industry, widely used in the production of logic chips, memory chips, power semiconductors, and other high-end electronic devices.

We make electronic-grade granular polysilicon with the silane fluidized bed technique. We take high-purity silane gas as raw material, heat and decompose it inside fluidized bed reactors, then get evenly shaped spherical silicon grains. This granular silicon boasts ultra-high purity, good fluidity and steady quality across every batch. It works perfectly for continuous feeding during semiconductor single crystal pulling. Unlike conventional lump polysilicon, these particles don’t need crushing before use. You can load them straight into automatic feeding equipment. This cuts contamination risks and lifts your overall production efficiency. We tightly control all impurity levels under industrial benchmarks. The purity of our granular silicon hits 9N to 11N, fully matching the strict standards required for semiconductor manufacturing.