Silicon Metal

Silicon metal is high purity polysilicon produced by the improved Siemens method. Hydrogen chloride (or purchased hydrogen chloride) is synthesized from chlorine and hydrogen, and trichlorosilane is synthesized from hydrogen chloride and industrial silicon powder at a certain temperature. Then trichlorosilane is separated, rectified and purified. Then, the purified trichlorosilane is processed into high-purity polysilicon by chemical vapor deposition in a hydrogen reduction furnace.

The process design of polysilicon production by improved Siemens method is roughly divided into the following processes: H₂ preparation and purification, HCl synthesis, SiHCl₃ synthesis, syngas dry separation, chlorosilane separation and purification, SiHCl₃ hydrogen reduction, reduction tail gas dry separation, SiCl₄ hydrogenation, hydrogenated gas dry separation, silicon core preparation and product finishing, waste gas and residual liquid treatment, etc.

NC Elements is a professional supplier of high-purity silicon metal and silicon lumps. Get a Quote Now! For high purity silicon powder, please refer to Silicon Powder and Fine Silicon Powder. For other semiconductor materials, please check our Semiconductor Materials catalog page.

Typical application:

Silicon metal also called polycrystalline silicon or polysilicon, is a material consisting of small silicon crystals. It differs from single-crystal silicon, used for electronics and solar cells, and from amorphous silicon, used for thin film devices and solar cells.

Synonyms: silicon lump, Si lump, silicon chucks, polysilicon, polycrystalline silicon

* Special requirements are available.

Inquiries and orders should include the following information:

1. Quantity
2. Purity
3. Size Range of the lumps if required.

Standard Packing: Packed in 25 kg or 50 kg drums. Special package is available on request.