The Fabrication of Organic Thin Film Transistor on Plastic Substrate by Inkjet-printing Technology
Date Issued
2005
Date
2005
Author(s)
Yang, Min-Hua
DOI
zh-TW
Abstract
Research into organic thin film transistor (OTFT) has been rapidly growing in the past few years. The use of organic semiconductor devices promises low-cost electronics over large area, using solution based deposition techniques under ambient condition. By direct printing of solution process materials provide a new route to the fabrication of organic thin film transistors. Although the natural resolution with inkjet printing system is limited, the resolution of critical dimension can be improved by surface energy patterns causing inks to be repelled and dewetting form pre-defined regions on substrate. With this technique, the critical channel length dimensions can be lowered down to sub-micrometer range. Printing sub-micron electrode spacing for organic transistors is an important step towards high performance low-cost organic plastronics. More studies will be needed to achieve the reproducibility and process stability toward this goal. The OTFT process mentioned was fabricated on glass or silicon wafer with one lithography step on patterning the channel region. Here, a new process based on hot-embossed nano-imprint was proposed to eliminate the lithography step, and the processing temperature through the whole process is confined below the temperature plastic substrates can sustained.
Subjects
有機薄膜電晶體
噴墨
塑膠基板
organic transistor
inkjet printing
plastic substrate
Type
thesis