Patent ID: 6398867
Filing Date: 2002-06-04
Classification: B01J

Abstract:
A gallium nitride growth process for forming crystalline gallium nitride, the process comprising:providing a source gallium nitride, the source gallium nitride comprising gallium nitride: providing a mineralizer: providing a solvent; providing a capsule comprising a first end unit and a second end unit, said first end unit and said second end unit being opposed to each other; disposing the source gallium nitride, mineralizer and solvent in the capsule in said first unit of the capsule; sealing said first unit of the capsule to said second unit; disposing the capsule in a pressure cell; and subjecting the pressure cell to (HPHT) conditions, wherein said first end of the capsule is subjected to a pressure of greater than 5 Kbar and a temperature of greater than 550Â° C., wherein a temperature differential between said first end and said second end of the capsule is established, and wherein the temperature differential between said first and second ends is between about 5Â° C. and about 300Â° C., for a length of time sufficient to dissolve the source gallium nitride and precipitate the source gallium nitride onto at least one gallium nitride crystal.