Growth and integration of epitaxial gallium nitride films with silicon-based devices
AssigneeNorth Carolina State University
InventorsThomas A. Rawdanowicz, Jagdish Narayan
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Abstract
Epitaxial gallium nitride is grown on a silicon substrate while reducing or suppressing the formation of a buffer layer. The gallium nitride may be grown directly on the silicon substrate, for example using domain epitaxy. Alternatively, less than one complete monolayer of silicon nitride may be formed between the silicon and the gallium nitride. Subsequent to formation of the gallium nitride, an interfacial layer of silicon nitride may be formed between the silicon and the gallium nitride.
Claims15
A method of fabricating a gallium nitride thin film comprising:
- heteroepitaxially growing a gallium nitride single-crystal thin film directly on a silicon substrate, wherein heteroepitaxially growing comprises heteroepitaxially growing a gallium nitride single-crystal thin film directly on a silicon substrate using domain epitaxy wherein integral multiples of lattice planes of the gallium nitride single-crystal thin film match with planes of the silicon substrate.
A method of fabricating a gallium nitride thin film comprising:
- domain epitaxially growing a gallium nitride single-crystal thin film on a silicon substrate wherein domain epitaxially growing comprises matching integral multiples of lattice planes of the gallium nitride single-crystal thin film with planes of the silicon substrate.
Dependencies are inferred from the claim text.