Interface states density (Nss) and minority carrier generation lifetime (τg) were evaluated for strained Si (St-Si) SiGe wafers using deep level transient spectroscopy and metal-oxide-semiconductor transient capacitance methods. Nss shows an independence on St-Si thickness (dSi) and an obvious dependence on Ge fraction (Ge%). τg shows a strong dependence on both dSi and Ge%. The reasons of these dependencies are discussed in detail.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)