Patents by Inventor Song Yongmok

Song Yongmok has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Method of preparing a high-purity polycrystalline silicon using a microwave heating system in a fluidized bed reactor

Patent number: 4900411

Abstract: Method and apparatus for the preparation of high-purity polycrystalline silicon deposited by thermal decomposition or hydrogen reduction of a gaseous halogenated silicon on high-purity silicon particles in a fluidized bed reactor heated by microwave.

Type: Grant

Filed: October 30, 1986

Date of Patent: February 13, 1990

Assignee: Korea Research Institute of Chemical Technology

Inventors: Yoon Poong, Song Yongmok

Method of preparing a high-purity polycrystalline silicon using a microwave heating system in a fluidized bed reactor