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Strained Si MOSFET on tensile-strained SiGe-on-insulator (SGOI)
Strained Si MOSFET on tensile-strained SiGe-on-insulator (SGOI)
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机译:绝缘体上拉伸应变SiGe(SGOI)上的应变Si MOSFET
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摘要
A semiconductor structure for use as a template for forming high-performance metal oxide semiconductor field effect transistor (MOSFET) devices is provided. More specifically, the present invention provides a structure that includes a SiGe-on-insulator substrate including a tensile-strained SiGe alloy layer located atop an insulating layer; and a strained Si layer atop the tensile-strained SiGe alloy layer. The present invention also provides a method of forming the tensile-strained SGOI substrate as well as the heterostructure described above. The method of the present invention decouples the preference for high strain in the strained Si layer and the Ge content in the underlying layer by providing a tensile-strained SiGe alloy layer directly atop on an insulating layer.
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