CA – Page 31 – TechConnect Briefs

Characterization of Ion Implantation in Si Using Infrared Spectroscopy with a Lock-In common-Mode-Rejection Demodulation

Rábag F., Mandelis A., Salnik A., University of Toronto, CA

B+, P+, and As+ ion-implanted Si wafers in the implantation dose range 1x1011 - 1x1013 ions/cm2 were characterized using Photothermal Radiometry (PTR). A comparison between the conventional frequency scan and a new technique called Common-Mode-Rejection [...]

Separation of Long Polyelectrolytes in a Microfuluidic Channel with Constrictions: A Monte Carlo Study

Tessier F., Slater G.W., University of Ottawa, CA

We present Monte Carlo simulation results for the motion of long linear polyelectrolytes inside a microchannel of molecular dimensions, structured as a periodic array of wells linked by narrow constrictions. Molecules are driven in the [...]

Latency Minimization for Permutations Using Distributed Technology

McAven L.F., Schlesinger M., Kent R.D., University of Windsor, CA

Distributed processing is a new concept considered as a solution to the cost problem relating to scaling parallel machines. Any problem given to a distributed system of n-processors can be better solved by a single [...]

The Distributive Calculation of Unitary Group Recoupling Coefficients

McAven L.F., Schlesinger M., Kent R.D., University of Windsor, CA

Symmetries, through group theory, can provide exact information about complex systems. However approximations are often made, for example density functionals are used in quantum chemistry, because it is impractical to obtain group coefficients. Coefficients for [...]

Managing the Distribution of Recursively Calculating Matrix Elements

McAven L.F., Schlesinger M., Kent R.D., University of Windsor, CA

Interaction stregths and material properties are represented mathematically by matrix elements. The calculation of matrix elements is therefore critical in the interpretation and modelling of physical systems. Part of the matrix elements can be factored [...]

Ab Initio Molecular Dynamics Study of the Pressure Induced Phase Transformations in Cristobalite

Klug D.D., Rousseau R., Uehara K., Bernasconi M., Tse J.S., National Research Council of Canada, CA

The mechanism for the pressure induced transformation of cristobalite to stishovite and post-stishovite phases has been obtained from constant pressure ab initio molecular dynamics simulations. The cristobalite to stishovite transformation is found to be a [...]

Phase Stability and Thermoelectric Properties of Alkali-Metal Doped Group IV Clathrate Compounds

Rousseau R., Toderov E., Uehara K., Tse J.S., National Research Council of Canada, CA

The relationship between phase stability and structure of alkali metal doped clathrate compounds of C, Si and Ge is investigated by a combination of first principles band structure calculations and qualitative tight binding theory. The [...]

Towards an Integrated Environment for Modeling and Simulating an Electro-Optic Measurement Microsystem

Barwicz A., Ben Slima M., Wisniewski M.P., Universite du Quebec a Trois-Rivieres, CA

The problem of tools for modeling simulating and testing measurement microsystems is addressed. The design methodology underlying the proposed integrated software & hardware environment for modeling and simulating measurement microsystems is based on functional simulation [...]

SEGS: On-line WWW Etch Simulator

Li G., Hubbard T., Antonsson E.K., Daltech-Dalhousie University, CA

This paper presents an interactive on-line wet etch simulator (SEGS) which predicts the etched shape as a function of time for arbitrary isotropic or anisotropic etchants and any initial mask shape. Using any Javaenabled web [...]