Bozidar Novakovic

Higher order quadrature for device periodic directions

B. Novakovic and G. Klimeck Mar. 2014

Objective:

  • Reduce the number of quadrature points at which to calculate (expensive) quantum density.

Approach:

  • Gaussian quadrature for wave vector grid in periodic directions.

Results:

  • Gaussian quadrature reduces number of points to 10-20, compared to 20-30 for simple rectangular.

Impact:

  • ~40% reduction of device simulation time.

InAs UTB DG TFET, sp3d5s* basis. Current deviation from converged value at high number of points shown.

Bozidar Novakovic's Pages

Biography Time-resolved device characteristics in the ballistic limit Computational efficiency of the time-resolved simulations in the ballistic limit Efficient time-resolved NEGF based quantum transport algorithm Modeling novel steep subthreshold devices for reduced power consumption and short channel effects Fast convergence algorithms for Poisson and transport equations Accurate I-V curves of Si MOSFET and III-V TFET devices Optimal quadrature techniques for device periodic directions. Optimized energy mesh Group Publications

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