Patent ID: 8765036
Filing Date: 2014-07-01
Classification: B29C,B29K

Abstract:
1. A method of manufacturing a semiconductor, said method comprising: providing a graphite mold defining a planar capillary space; providing a measure of finely divided silicon nitride containing less than 2% silica, oxygen, and silicon; mixing the silicon nitride with colloidal silica; coating the graphite mold with the silicon nitride and colloidal silica mixture; heating the coating in the presence of nitrogen to a temperature in excess of 1,400 degrees Centigrade to form a silicon nitride covering on the mold: placing a measure of precursor in fluid communication with the capillary space, the precursor being substantially non-reactive to the silicon nitride covering on the mold: melting the precursor; allowing the melted precursor to flow into the capillary space; and cooling the melted precursor within the mold such that the precursor forms a semiconductor.