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Application-oriented nitride substrates for epitaxial growth of electronic and optoelectronic device structures
Application-oriented nitride substrates for epitaxial growth of electronic and optoelectronic device structures
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机译:面向应用的氮化物衬底,用于电子和光电子器件结构的外延生长
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摘要
The present invention provides an applications-oriented nitride compound semiconductor substrate, and devices based on it, whose lattice constant can be tuned to closely match that of any nitride thin film or films deposited on it for specific electronic or optoelectronic device applications. Such application-oriented nitride substrates, which can be composed of ternary InxGa1-xN, AlyIn1-yN, AlzGa1-zN, or quaternary AlaInbGa1-a-bN alloy compounds, minimize lattice-mismatch-induced dislocations and defects between the epitaxial films and the substrate on which the device layers are grown, leading to substantially improved device performance.
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机译:本发明提供了面向应用的氮化物化合物半导体衬底,以及基于该衬底的器件,其晶格常数可以被调整为与用于特定电子或光电子器件应用的任何氮化物薄膜或沉积在其上的薄膜的晶格常数紧密匹配。这样的面向应用的氮化物衬底可以由三元In x Sub> Ga 1-x Sub> N,Al y Sub> In 1- y Sub> N,Al z Sub> Ga 1-z Sub> N或四元Al a Sub> In b Sub> Ga 1-ab Sub> N合金化合物可最大程度地减少晶格失配引起的位错和外延膜与生长器件层的衬底之间的缺陷,从而显着改善器件性能。
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