Modeling & Simulation of Microsystems – Page 31

A Data Model for the Representation of Fabrication Dependencies Concerning Micromechanical Devices

Hansen U., Büttgenbach S., Technical University of Braunschweig, DE

Conventionally the design of a product is conducted paying only little attention to the subsequent manufacturing. Regarding micromechanical devices this is not practicable, since the design choices taken are highly dependent on the technology used [...]

Coupled System-Level and Physical-Level Simulation

Furmanczyk M., Turowski M., Yu E., Przekwas A.J., CFD Research Corporation, US

Software tools for Mixed-Level Coupled Simulations have been developed. The system-level simulation uses the circuit theory approach, where each element of the system is modeled either through mathematical equation, or through coupling with physical-level 3D [...]

System Model for a Novel No Moving Parts Diffuser Valve Based Diaphragm Actuated Micro Pump

Banerjee D., Yano K., Bart S.F., Coventor, US

Analytical results for oscillating flow in a channel indicate regions of high shear stress close to the wall along with the flow reversal in the central portion of the flow at certain frequencies of actuation. [...]

Coupled Multiphysics and Chemistry Simulations of PCR Microreactors with Active Control

Athavale M.M., Chen Z.J., Furmanczyk M., Przekwas A.J., CFD Research Corporation, US

High-fidelity simulation tools that couple fluid flow, heat transfer and chemistry of PCR microreactors have been applied to different microreactor designs. The tools are coupled to a controller software for thermal control of the virtual [...]

Software Tools, CAD Systems

The Quantum-Point-Contact Spin Filter

Gilbert M.J., Bird J.P., Arizona State University, US

We describe an electron filter that exploits the known transmission properties of quantum point contacts to allow local and tunable control of the spin polarization in a semiconductor. When properly configured, the conductance of this [...]

An Approach to Quantum Correction in Monte Carlo Device Simulation

Winstead B., Tsuchiya H., Ravaioli U., University of Illinois at Urbana-Champaign, US

A particle-based approach coupled with quantum potential corrections is very attractive for practical simulation of nanoscale semiconductor devices. We present here a quantum correction approach derived from a simplification of the Wigner function transpo

Spin Dependent Boundary Conditions and Spin Splitting in Cylindrical Quantum Dots

Li Y., Liu J-L., Voskoboynikov O., Liu J-L., Lee C.P., Sze S.M., National Chiao Tung University, TW

To study a spin dependence of the electron energy states in tree dimensional cylindrical semiconductor dots we consider theoretically the spin-orbit interaction impact on the electron quantum con...nement in the dots. We solve the problem [...]

The Use of Bohm Trajectories and the Effective Potential in Probing Quantum Mechanical Behavior in 2-D and Spintronic Sub-micron Devices

Shifren L., Akis R., Ferry D.K., Arizona State University, US

We utilize an effective potential to reproduce Bohm (quantum) trajectory behavior using purely classical trajectories. The effective potential is a novel method for including certain quantum phenomena into classical simulations by projecting the non-zero dimensions [...]

Towards a Compact Scattering Model for Nanoscale MOSFETs

Rahman A., Ren Z., Rhew J-H., Lundstrom M.S., Purdue University, US

A new compact model for nanoscale MOSFETs based on scattering theory is proposed for the full range of VGS and VDS covering sub-threshold, linear and saturation regions of operation. Quantum confinement and carrier degeneracy are [...]