Patent · US Active

Production of polycrystalline silicon in substantially closed-loop processes that involve disproportionation operations

US10407309B2 · kind B2 · utility

0Cited by

16References

16Claims

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Assignee

Corner Star Limited · CN

Inventors

Puneet Gupta · Singapore, SG
Yue Huang · Midlothian, US
Satish Bhusarapu · Houston, US

Key dates

Filing date	Dec 24, 2014
Grant date	Sep 10, 2019
Priority date	—
Expiry date	Mar 11, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01B33/03
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Production of polycrystalline silicon in substantially closed-loop processes and systems is disclosed. The processes and systems generally involve disproportionation of trichlorosilane to produce silane or dichlorosilane and thermal decomposition of silane or dichlorosilane to produce polycrystalline silicon.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.