Patent ID: 10861945

Abstract:
A semiconductor element includes a high-resistivity substrate that includes a β-Ga2O3-based single crystal including an acceptor impurity, a buffer layer on the high-resistivity substrate, the buffer layer including a β-Ga2O3-based single crystal, and a channel layer on the buffer layer, the channel layer including a β-Ga2O3-based single crystal including a donor impurity. A crystalline laminate structure includes a high-resistivity substrate that includes a β-Ga2O3-based single crystal including an acceptor impurity, a buffer layer on the high-resistivity substrate, the buffer layer including a β-Ga2O3-based single crystal, and a donor impurity-containing layer on the buffer layer, the donor impurity-containing layer including a β-Ga2O3-based single crystal including a donor impurity.