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Integration of vertical field-effect transistors and saddle fin-type field effect transistors
Integration of vertical field-effect transistors and saddle fin-type field effect transistors
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机译:垂直场效应晶体管和鞍鳍型场效应晶体管的集成
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摘要
Structures for the integration of a vertical field-effect transistor and a saddle fin-type field-effect transistor into an integrated circuit, as well as methods of integrating a vertical field-effect transistor and a saddle fin-type field-effect transistor into an integrated circuit. A trench isolation is formed in a substrate that defines a first device region and a second device region. A first semiconductor fin is formed that projects from the first device region and a second semiconductor fin is formed that projects from the second device region. A vertical field-effect transistor is formed using the first semiconductor fin, and a saddle fin-type field-effect transistor is formed using the second semiconductor fin. A top surface of the trench isolation in the second device region adjacent to the second semiconductor fin is recessed relative to the top surface of the trench isolation in the first device region adjacent to the first semiconductor fin.
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