Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1670239 | Thin Solid Films | 2010 | 5 Pages |
Abstract
This study theoretically examines the hole subband structures in inversion layers of strained Silicon (Si) transistors under different strain conditions. Two strain conditions of Si P-channel metal-oxide-semiconductor (PMOS), including intrinsic strain resulting from growing the Si on the (001) Silicon-Germanium (SiGe) substrate and mechanical stress applied externally, were considered in this work. Various effective masses of hole inversion layers used in technology computer-aided design (TCAD) simulations were investigated, such as the quantization effective mass, mz, the density of states effective mass, mDOS, and the conductivity mass, mÏ. It was then demonstrated that the external stress applied parallel to the channel direction for holes in the inversion layer with intrinsic biaxial strain is an optimal method of lowering mÏ and increasing mDOS for the top subband.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Shu-Tong Chang, Jacky Huang, Ming Tang, Chung-Yi Lin,