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Direct Patterning for Printable Electronics by Inkjet Technologies
Keywords: inkjet, printable electronics, nano
Inkjet technologies are new production engineering for printable electronics which is mask-less production of various electronics devices. The new processes make big benefits as showed below; 1) direct printing of electrode or insulator film on large substrate, 2) manufacturing of a small quantity but many kinds of devices 3) real-time production by digital design 4) small loss of coating materials. In this paper, jetting performance of Ag nano particle dispersed ink and polyimide solution with the inkjet printhead for industrial uses will be described. The material compatibility of a print head against ink solvents, driving waveform, and surface control of the printed substrate will be discussed for stable ejection and reliable patterning. The special printhead has been developed for highly accurate placement, which can be applied to fine patterning of thin film.
Shinichi Nishi, General Manager
KonicaMinolta IJ Technologies Inc.
Tokyo 191-8511,
Japan


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