Automated Balloon Sonde Launcher for Remote Locations

Not Available The goal of the proposed study is to develop a commercial-quality CAD tool to aid in the development of quantum based semiconductor devices. Currently, there are no commercial computer aided design (CAD) tools available that incorporate the proper physics for designing quantum devices. In Phase I of the study an existing 1D steady-state quantum simulator, NEMO, will be enhanced to include small-signal AC analysis through S-parameter extraction for use in a circuit simulator. This effort will be performed in close collaboration with JPL and Raytheon, the original developers of the quantum simulator NEMO. The modified quantum simulator will be used for demonstration/validation studies on resonant tunneling diodes (RTDs). Also, a new CAD tool architecture will be designed for implementation in the Phase II effort. In the Phase I option drift-diffusion effects will be put in NEMO's contact models, and experimental measurements of RTDs will be carried out to validate the CAD tool. In Phase II the new architecture design will be implemented. The architecture will leverage existing grid generation, numerical solver, database, and GUI library technologies at CFDRC. The final CAD tool will be 2D/3D, steady-state/transient, allow for AC analysis, capable of S-parameter extraction, and coupled with an electronic hydrodynamic model. The completed cross-platform tool will have a new graphical front end to aid in mesh generation, problem set- up, execution, and analysis/visualization.