摘要:
The nitride semiconductor material according to the present invention includes a group III nitride semiconductor and a group IV nitride formed on the group III nitride semiconductor, where an interface between the group III nitride semiconductor and the group IV nitride has a regular atomic arrangement. Moreover, an arrangement of nitrogen atoms of the group IV nitride in the interface and an arrangement of group III atoms of the group III nitride semiconductor in the interface may be substantially identical.
摘要:
The transistor includes an underlying layer 301 formed on a substrate 300, and a first layer (including an operation layer 302) made of a nitride semiconductor formed on the underlying layer 301. The underlying layer 301 is a multilayered structure including a plurality of stacked nitride semiconductor layers. The underlying layer 301 includes a transition-metal-containing layer containing at least one of cobalt, nickel, ruthenium, osmium, rhodium, or iridium which is a transition metal.
摘要:
A nitride semiconductor device includes: a substrate having a principal surface; a first nitride semiconductor layer formed on the principal surface of the substrate and includes one or more convex portions whose side surfaces are vertical to the principal surface; and a second nitride semiconductor layer selectively grown on the side surfaces of the one or more convex portions of the first nitride semiconductor layer.