Future Satellite Technology. The Role of Nanoelectronics
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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Tiny earth-orbiting spacecraft known as nanosatellites are now possible due to breakthroughs in microelectromechanics that permit engineers to build extremely small yet fully functional devices. With todays satellite launch costs averaging around 20,000 per pound lifted into space, nanosatellites could revolutionize the future of space access by significantly reducing the size, mass, power requirements, complexity and ultimately the costs of space systems. The small satellite concept fosters a faster evolution in space science and introduces and tests state-of-the-art space technology. of the technologies required to design a miniaturized and yet autonomous vehicle, nanoelectronics is at the forefront. The field of nanoelectronics is primarily concerned with integrated circuit IC technology for scale sizes well below 100 nanometers. It is in this realm that the quantum - mechanical nature of the electron becomes of paramount importance. With the tools of quantum physics, reduction in the size of individual transistors has yielded the quantum dot a three-dimensional structure for confinement of a single electron. The theoretical study in this thesis will show that the width in p-n junctions is generally underestimated for curved interfaces by textbook formulas. This result is significant for semi-cylindrical quantum dots which are the logical result of continued down scaling in semiconductor devices.
- Unmanned Spacecraft