期刊
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
卷 17, 期 2, 页码 272-277出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JMEMS.2007.911374
关键词
electrostatic focusing; micronozzles; printing; wiring
Free-space microink streams are realized by an array of microcapillaries. Ink is ejected from capillaries accelerated by an electric field with low or no back pressure applied. The capillaries are 20 mu m in diameter, whereas the microstreams are only a few micrometers thick due to the Taylor cone effect. This method enables one to draw very fine lines down to I pm without lithographical techniques. With a pulsed-field application, dotted lines can also be drawn. Direct drawing of both solid and dotted lines has successfully been demonstrated by applying dc and 500-Hz ac fields, respectively.
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