Analytical Model of Surface Potential and Threshold Voltage of Biaxial Strained Silicon Nmosfet including Qme

نویسندگان

  • Shiromani Balmukund Rahi
  • Garima Joshi
چکیده

In this paper physics based analytical model for threshold voltage of nanoscale biaxial strained nMOSFET has been presented. The maximum depletion depth and surface potential in biaxial strained–Si nMOSFET is determined, taking into account both the quantum mechanical effects (QME) and effects of strain in inversion charge sheet. The results show that a significant decrease in threshold voltage occurs with the increase in the germanium content in the silicon germanium layer. The results have been compared with the published data and the effect of variation of channel doping concentration has been examined.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Physics Based Model of Inversion Charge Sheet (ics) for Nanoscale Biaxial Strained – Silicon Nmosfet including Quantum Mechanical Effect (qme)

In this paper, a physics based model of inversion charge sheet of nanoscale NMOSFETs has been presented. The model is formulated for nanoscale biaxial strained silicon NMOSFET including quantum mechanical effect (QME). The QME is splitting of conduction band due to very thin oxide (tox) and very large doping concentration of ultra small geometry of MOSFET. The QME shift the inversion charge she...

متن کامل

Stress immunity enhancement of the SiN uniaxial strained n-channel metal-oxide-semiconductor field-effect-transistor by channel fluorine implantation

Channel fluorine implantation (CFI) has been successfully integrated with silicon nitride contact etch stop layer (SiN CESL) to investigate electrical characteristics and stress reliabilities of the n-channel metal– oxide–semiconductor field-effect-transistor (nMOSFET) with HfO2/SiON gate dielectric. Although fluorine incorporation had been used widely to improve device characteristics, however...

متن کامل

Analytical Threshold Voltage Computations for 22 nm Silicon-on-Diamond MOSFET Incorporating a Second Oxide Layer

In this paper, for the first time, an analytical equation for threshold voltage computations in silicon-on-diamond MOSFET with an additional insulation layer is presented; In this structure, the first insulating layer is diamond which covered the silicon substrate and second insulating layer is SiO2 which is on the diamond and it is limited to the source and drain on both sides. Analytical solu...

متن کامل

Electrical Characteristics of the Uniaxial-Strained nMOSFET with a Fluorinated HfO2/SiON Gate Stack

The channel fluorine implantation (CFI) process was integrated with the Si₃N₄ contact etch stop layer (SiN CESL) uniaxial-strained n-channel metal-oxide-semiconductor field-effect transistor (nMOSFET) with the hafnium oxide/silicon oxynitride (HfO₂/SiON) gate stack. The SiN CESL process clearly improves basic electrical performance, due to induced uniaxial tensile strain within the channel. How...

متن کامل

Physics-Based Scalable Threshold-Voltage Model for Strained-Silicon MOSFETs

In this paper, an analytical threshold-voltage (Vt) model derived from Poisson equation for NMOS devices with a strained-silicon channel is described in terms of band, material, doping, and structure parameters and validated with Medici simulations. The model equations are derived based on bulk reference to preserve the symmetry of the model, and extended to short-channel devices based on previ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012