University of Washington – Page 3

Dimer-method Long Time Scale Simulations of Surface Growth

Henkelman G., University of Washington, US

We have carried out long time scale simulations where the dimer method [G. Henkelman and H. Joonsson, J. Chem. Phys. 111, 7010 (1999)] is used to find the mechanism and estimate the rate of transitions [...]

Compact Modeling of Tunneling Breakdown in PN Junctions for Computer-Aided ESD Design (CAD for ESD)

Subramanian Y., Darling R.B., University of Washington, US

This paper presents compact, physically-based electrothermal models for direct as well as indirect bandgap tunneling processes in pn-junctions for use in network simulators (e.g. Saber or VHDL-A). The model for indirect tunneling has been validated [...]

Atomistic Modeling of Arsenic Diffusion and Activation

Dunham S., Fastenko P., Qin Z., Henkelman G., University of Washington, US

Understanding the diffusion and activation of arsenic is critical for the formation of low resistance ultra-shallow junctions as required for nanoscale MOS devices. In this work, we combine the results of ab-initio calculations with continuum [...]

Physical Modeling of MEMS Cantilever Beams and the Measurement of Stiction Force

Lam T., Darling R.B., University of Washington, US

A finite element model is combined with experimental data to extract the stiction force in MEMS cantilever beams. The model predicts cantilever behaviors both before and after snap-down has occurred. Experimental measurements of cantilevers have [...]

Compact Modeling of Avalanche Breakdown in pn-Junctions for Computer-Aided ESD Design (CAD for ESD)

Subramanian Y., Darling R.B., University of Washington, US

This paper presents and validates compact, physically-based electrothermal models of the avalanche process in pn junctions for use in network simulators (e.g. Saber). Self-heating effects are also included. This enables the simulation of large systems [...]

Compact Models for Smart Pixels with Smart Illumination

Subramanian Y., Azadeh M., Darling R.B., University of Washington, US

Smart Pixels with Smart Illumination (SPSI) is a recently developed technology that enables the monolithic integration of two functionalities-optical illumination and detection- into arrays of optoelectronic ‘pixels’ in a compact and robust manner. To facilitate [...]

Compact Modeling of Bistable Electrostatic Actuators

Xu J., Darling R.B., Lauritzen P.O., University of Washington, US

A compact circuit simulation model for a bistable electrostatic cantilever actuator is presented which is appropriate for circuit and system simulation of RF MEMS switches. This simplified model captures the essential physical features of a [...]