Patent ID: 8449940

Claim:
A method for producing high-purity silicon comprising the steps of: a. Creating one or more deposition plates each with one or more deposition surfaces which have a high surface area, which can be rapidly, homogenously, and simultaneously heated, and which will not contaminate high-purity silicon, b. Having a geometry for said deposition plates such that the ratio of average deposition surface area to deposition reactor internal volume is increased, c. Placing said deposition plates in a deposition reactor, d. Flowing a deposition gas mixture into the deposition reactor to deposit silicon onto the deposition surfaces wherein the deposition gas mixture flows through the spaces between the deposition plates and the deposition surfaces are heated to a temperature that optimizes the deposition reaction of the deposition gas mixture, e. After the desired amount of silicon has been deposited, further heating the deposition plates to above the melting point of silicon so as to create only a thin layer of liquefied silicon between the plate and the remaining solid crust of deposited silicon, f. Sliding off the solid crust of deposited silicon from the deposition plates by applying a force such as gravitational force.