Patent ID: 7939367
Filing Date: 2011-05-10
Classification: H01L

Abstract:
1. A method of growing a diamond layer upon an adhesion layer coating a compound semiconductor substrate, comprising: loading the adhesion layer coated compound semiconductor substrate into a chemical vapor deposition (CVD) reactor; evacuating the CVD reactor down to the vacuum base pressure of the reactor; introducing reactive gasses into the reactor, wherein at least one of the gasses is a carbon-bearing gas; establishing a process pressure in the reactor; setting a constant concentration of the carbon-bearing gas in the reactor; applying power to the reactor at any ramped rate to maintain a temperature differential between the center of the substrate and the edge of the substrate of less than 80° Celsius; maintaining the final process temperature of the substrate at less than 1200° Celsius; and maintaining said recited conditions to assure the growth of an adherent diamond layer upon the adhesion layer of the substrate.