Mobility Modeling in SOI FETs for Different Substrate Orientations and Strain Conditions

نویسندگان

  • Viktor Sverdlov
  • Enzo Ungersboeck
  • Hans Kosina
چکیده

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MOBILITY MODELING IN SOI FETS FOR DIFFERENT SUBSTRATE ORIENTATIONS AND STRAIN CONDITIONS SHORT TITLE: MOBILITY MODELING IN SOI FETs

Conduction band modification due to shear stress is investigated. Mobility in singleand double-gate SOI FETs is modeled for Silicon thin body orientation (001) and (110) under general stress conditions. Decrease of conductivity mass induced by uniaxial [110] tensile stress leads to mobility enhancement in the stress direction in ultra-thin body SOI MOSFETs.

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Effectiveness of Strain Solutions for Next-Generation MOSFETs

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Analytical modeling of surface accumulation behavior of fully depleted SOI four gate transistors (G(4)-FETs)

A charge sheet model is proposed to analyze the transistor characteristics of fully depleted SOI four gate field effect transistors (G-FETs). The model is derived assuming a parabolic potential variation between the junction-gates and by solving 2-D Poisson’s equation. The proposed model facilitates the calculation of surface potential and charge densities as a function of all gate biases. Modi...

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Even though it is well known that ultra-thin body (UTB) SOI MOSFETs have a better scaling potential than bulk devices, the effect of stress on UTB MOSFETs has received less attention until recently (1). In the present work the origin of the stress induced effective electron mobility enhancement ∆μeff in UTB MOSFETs on (001) and (110) wafers is investigated. Since our simulations for stressed (0...

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تاریخ انتشار 2006