TITLE

Accurate impact ionization model which accounts for hot and cold carrier populations

AUTHOR(S)
Grasser, T.; Kosina, H.; Heitzinger, C.; Selberherr, S.
PUB. DATE
January 2002
SOURCE
Applied Physics Letters;1/28/2002, Vol. 80 Issue 4, p613
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Conventional macroscopic impact ionization models which use the average carrier energy as a main parameter can not accurately describe the phenomenon in modern miniaturized devices. Here, we present a model which is based on an analytic expression for the distribution function. In particular, the distribution function model accounts explicitly for a hot and a cold carrier population in the drain region of metal–oxide–semiconductor transistors. The parameters are determined by three-even moments obtained from a solution of a six-moments transport model. Together with a nonparabolic description of the density of states, accurate closed form macroscopic impact ionization models can be derived based on familiar microscopic descriptions. © 2002 American Institute of Physics.
ACCESSION #
5942526

 

Related Articles

  • Role of nonlocal ionization in formation of the short glow discharge. Kudryavtsev, A.; Morin, A.; Tsendin, L. // Technical Physics;Aug2008, Vol. 53 Issue 8, p1029 

    An analytical model for estimating basic characteristics of short (without a positive column) glow discharges is suggested that allows for electron generation both in the cathode sheath and by nonlocal ionization in the plasma negative glow. The model is based on a previously developed approach...

  • Growth curve analysis of tumourigenesis using cellular level cancer model. Ouchi, N. B. // Radiation Protection Dosimetry;Feb2011, Vol. 143 Issue 2-4, p365 

    It is known that carcinogenesis by low-dose radiation will start from DNA damage by ionising radiation. After the long time period, these very small effects will appear on a cellular scale by accumulation of various intracellular biological responses and finally grow to the tumour with clonal...

  • Interaction of Electrons with Matter and Comparison of the Obtained Results with Experimental Measurements. Bigdelo, Somayeh Almasi; Alamsi, Laleh // Australian Journal of Basic & Applied Sciences;2011, Vol. 5 Issue 12, p1813 

    Each charged particle loses its energy while passing through a matter. These charged particles have electrons. Electrons lose their energy as a result of the interaction with the matter in four ways: 1. Bremsstrahlung, 2. electron-positron pair annihilation, 3. inelastic collision of electrons...

  • Ionization Waves in ZNS. Abou El-Ela, F. M. // AIP Conference Proceedings;2007, Vol. 888 Issue 1, p86 

    Ionization waves, analogous to positive column of gaseous plasma, are shown to occur in ZnS. This is demonstrated with a model in which a single type of carrier (electron) impact ionizes a deep level trap in ZnS. The no-local nature of impact ionization is described using lucky drift theory....

  • Collision induced modification of spectral lines in the first autoionization region of barium. Afrousheh, Kourosh; Makdisi, Yacoub; Kokaj, Jahja; Marafi, Mustafa; Mathew, Joseph; Pichler, Goran // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Dec2013, Vol. 67 Issue 12, p1 

    The spectrum of barium above the first ionization potential is significantly modified by collisions with rare gas atoms. Atomic Ba vapor was produced in a heat-pipe oven. The two ground state electrons of Ba were excited simultaneously using non-resonant two-photon absorption to populate the 5...

  • An analytical model of photovoltaic effect in plasma under conditions of nonuniform distribution of alkali vapors and buffer gas in a heat pipe. Gorbunov, N.; Flamant, G. // High Temperature;Nov2006, Vol. 44 Issue 6, p950 

    The article discuses on an analytical model on photovoltaic effect in plasma under nonuniform distribution in a heat pipe. Vidal and Cooper heat pipes were used in demonstrating the effect of vapor and gas under nonuniform distribution. The experimental and mathematical study of photo voltaic...

  • How simple can a model of an empty viral capsid be? Charge distributions in viral capsids. Lošdorfer Božič, Anže; Šiber, Antonio; Podgornik, Rudolf // Journal of Biological Physics;Sep2012, Vol. 38 Issue 4, p657 

    We investigate and quantify salient features of the charge distributions on viral capsids. Our analysis combines the experimentally determined capsid geometry with simple models for ionization of amino acids, thus yielding a detailed description of spatial distribution for positive and negative...

  • Ionization effect of solar particle GLE events in low and middle atmosphere. Usoskin, I. G.; Kovaltsov, G. A.; Mironova, I. A.; Tylka, A. J.; Dietrich, W. F. // Atmospheric Chemistry & Physics;2011, Vol. 11 Issue 5, p1979 

    No abstract available.

  • Computational model of collisional-radiative nonequilibrium plasma in an air-driven type laser propulsion. Ogino, Yousuke; Ohnishi, Naofumi // AIP Conference Proceedings;5/6/2010, Vol. 1230 Issue 1, p148 

    A thrust power of a gas-driven laser-propulsion system is obtained through interaction with a propellant gas heated by a laser energy. Therefore, understanding the nonequilibrium nature of laser-produced plasma is essential for increasing available thrust force and for improving energy...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics