Fabrication of Silicon on Lattice-Engineered Substrate (SOLES) as a Platform for Monolithic Integration of CMOS and Optoelectronic Devices

We report the fabrication of a novel substrate platform for the monolithic integration of Si-based CMOS and GaAs-based optoelectronic devices. This platform, which we refer to as silicon on lattice-engineered substrate (SOLES), consists of a compositionally graded SiGe buffer buried underneath a silicon-on-insulator (SOI) structure, all fabricated on a Si substrate