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1. (WO2013110247) THE METHOD AND SYSTEM FOR PRODUCTION OF SILICON AND DEVICIES

Pub. No.:    WO/2013/110247    International Application No.:    PCT/CN2013/073370
Publication Date: Fri Aug 02 01:59:59 CEST 2013 International Filing Date: Fri Mar 29 00:59:59 CET 2013
IPC: C01B 33/00
Applicants: CHU, Xi
Inventors: CHU, Xi
Title: THE METHOD AND SYSTEM FOR PRODUCTION OF SILICON AND DEVICIES
Abstract:
In one embodiment of the invention, the silane and hydrogen (and inert gas) mixture is produced using catalytic gasification of silicon ( or si-containing compounds including silicon alloys) with a hydrogen source such as hydrogen gas, atomic hydrogen and proton. By not separating silane from hydrogen and co-purifying all the gases (silane and hydrogen, inert gas) in the gas mixture simultaneously, the mixture is co-purified and then provide feed stock for downstream application without further diluting the silane gas. One aspect of the invention addresses the need for an improved production method, apparatus and composition for silane gas mixtures for large scale low cost manufacturing of high purity silicon and distributed on-site turnkey applications including but not limited to the manufacture of semiconductor integrated circuits, photovoltaic solar cells, LCD- flat panels, lithium ion battery and other electronic devices. Thus, various embodiments of the invention can greatly reduce the cost and simplify the process of manufacturing silicon.