Analysis of Hole Transport in Arbitrarily Strained Germanium

MOSFET Channel Engineering using Strained Si, SiGe, and Ge Channels

Biaxial tensile strained Si grown on SiGe virtual substrates will be incorporated into future generations of CMOS technology due to the lack of performance increase with scaling. Compressively strained Ge-rich alloys with high hole mobilities can also be grown on relaxed SiGe. We review progress in strained Si and dual channel heterostructures, and also introduce high hole mobility digital allo...

Temperature Dependent Model for Hole Effective Mass in Heavily Doped p-type SiGe

As a consequence of compressive strain and alloying, the hole effective mass inp-type strained SiGe differs significantly from its Si value. Influencing the carrier concentrations in the base, the hole effective mass affects the base transport properties of npn SiGe HBTs. A new model for hole effective mass is presented in this work, which takes into consideration the dependence on temperature,...

Comparative analysis of hole transport in compressively strained InSb and Ge quantum well heterostructures

High hole and electron mobilities using Strained Si / Strained Ge heterostructures

PMOS and NMOS mobility characteristics of the dual channel (strained Si/strained Ge) heterostructure have been reviewed. It is shown that the dual channel heterostructure can provide substantially enhanced mobilities for both electrons and holes. However, germanium interdiffusion from the germanium rich buried layer into the underlying buffer layer could potentially reduce the hole mobility enh...

Hole Mobility in Strained Ge / Relaxed SiGe with a High - k / Metal Gate Stack

The need for high speed and density in the modem semiconductor industry requires new channel materials and techniques for improved carrier transport and continuous scaling of the device dimensions. As a material for enhanced hole transport strained-Ge is implemented in this work. High-k dielectric and metal gate stack is used for improved electrostatic control, as an alternative to the unstable...