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Manufacturing Process
Semiconductor-Grade Chemicals
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Semiconductor-grade chemicals are both recycled in Hemlock Semiconductor manufacturing processes and sold to semiconductor manufacturers.

Silicon chemical products from Hemlock Semiconductor are critical in specialized semiconductor manufacturing processes.

Semiconductor-grade chemicals meet the specialized needs of semiconductor fabrication

Extremely high-purity, semiconductor-grade dichlorosilane (H2SiCl2) and trichlorosilane (HSiCl3) are produced in the polycrystalline silicon manufacturing process. These materials are captured and separated, with a large percentage recycled within Hemlock Semiconductor Group manufacturing processes.

Additional quantities are sold to manufacturers for use in chemical vapor deposition (CVD) of thin films in electronics applications.

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