University of Arkansas
Ultra-low Voltage Digital Circuits and Extreme Temperature Electronics Design
Abstract
dc:description.abstract<p>Certain applications require digital electronics to operate under extreme conditions e.g., large swings in ambient temperature, very low supply voltage, high radiation. Such applications include sensor networks, wearable electronics, unmanned aerial vehicles, spacecraft, and energyharvesting systems. This dissertation splits into two projects that study digital electronics supplied by ultra-low voltages and build an electronic system for extreme temperatures. The first project introduces techniques that improve circuit reliability at deep subthreshold voltages as well as determine the minimum required supply voltage. These techniques address digital electronic design at several levels: the physical process, gate design, and system architecture. This dissertation analyzes a silicon-on-insulator process, Schmitt-trigger gate design, and asynchronous logic at supply voltages lower than 100 millivolts. The second project describes construction of a sensor digital controller for the lunar environment. Parts of the digital controller are an asynchronous 8031 microprocessor that is compatible with synchronous logic, memory with error detection and correction, and a robust network interface. The digitial sensor ASIC is fabricated on a silicon-germanium process and built with cells optimized for extreme temperatures.</p>
Degree
thesis:*- Name thesis:degree_name
- Doctor of Philosophy in Engineering (PhD)
- Level thesis:degree_level
- Dissertation
- Year dc:date.available
- 2012
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Arthurs, Aaron J
- Advisor dc:contributor.advisor
-
- Di, Jia
- Contributors dc:contributor
-
- Mantooth, H. Alan
- Smith, Scott C.
Subjects
dc:subject × 12Identifiers
dc:identifier.*- Repository record dc:identifier
- https://scholarworks.uark.edu/etd/527
- OAI identifier oai:identifier
- oai:scholarworks.uark.edu:etd-1526