Analog signal processing circuits in organic transistor technology [electronic resource]
- Wei Xiong.
- 2010, c2011.
- Physical description
- 1 online resource.
- Xiong, Wei.
- Murmann, Boris, primary advisor.
- Bao, Zhenan, advisor.
- Dutton, Robert W., advisor.
- Stanford University. Department of Electrical Engineering
- Low-voltage organic thin-film transistors offer potential for many novel applications. Because organic transistors can be fabricated near room temperature, they allow integrated circuits to be made on flexible plastic substrates. This physical flexibility allows organic transistors to integrate with bendable organic displays, polymeric muscles, and conformal sensors. Additionally, organic semiconductors are inherently sensitive to specific molecules, making organic transistors naturally suited for chemical and biological sensors. In all these applications, data converters are the essential link between the digital processors and the analog media. However, because of the inherent non-uniformities in organic processing, organic analog circuits suffer from large variations that lead to inaccurate and unreliable data conversion. Dielectric leakage and large parasitic capacitances further limit the available design space. This dissertation describes the sources of these process handicaps and offers design techniques to counter them. By applying these techniques, this research demonstrated the world's first organic-transistor digital-to-analog converter and the first organic-transistor analog-to-digital converter. Both data converters operate at 3 V, 100 Hz and resolve 6 bits. Similar design methodology can be utilized in designing other organic-transistor based analog signal processing circuits.
- Publication date
- Copyright date
- Submitted to the Department of Electrical Engineering.
- Thesis (Ph.D.)--Stanford University, 2011.
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