Method for preparation of flat step-free silicon carbide surfaces
AssigneeInternational Business Machines Corporation
InventorsJames B. Hannon, Rudolf Tromp
Life of this patent
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Abstract
Techniques for producing atomic step-free silicon carbide surfaces are provided. In one aspect, a method for eliminating atomic steps from a silicon carbide surface is provided. The method comprises the following step. The silicon carbide and a silicon-containing gas are contacted at a temperature, background pressure, and for a length of time sufficient to re-arrange the silicon carbide to an atomic step-free surface. The silicon carbide surface can be the top of a mesa or the bottom of a hole patterned in a silicon carbide wafer.
Claims19
A method for eliminating atomic steps from a silicon carbide surface, comprising the step of:
- contacting the silicon carbide and a silicon-containing gas at a temperature, background pressure, and for a length of time sufficient to re-arrange the silicon carbide to an atomic step-free surface while preventing decomposition of the silicon carbide into graphene, wherein the temperature is from about 900 degrees Celsius to about 1,200 degrees Celsius.
Dependencies are inferred from the claim text.