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Wiping Out The Coffee-ring Effect Advances Inkjet Printing Of Electronic Circuits

Date:
February 1, 2008
Source:
American Chemical Society
Summary:
Researchers in California report a key advance in efforts to use inkjet printing technology in the manufacture of a new generation of low cost, high-performance electronic circuits for flexible video displays and other products. Their study* describes development of a new method for producing straighter, uniform circuits using inkjet-printing.

Examples of printed line behaviors from inkjet printers: (a) individual drops, (b) scalloped, (c) uniform, (d) bulging, and (e) stacked coins.
Credit: Courtesy of the American Chemical Society

Researchers in California report a key advance in efforts to use inkjet printing technology in the manufacture of a new generation of low cost, high-performance electronic circuits for flexible video displays and other products. Their study* describes development of a new method for producing straighter, uniform circuits using inkjet-printing.

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In the report, Dan Soltman and Vivek Subramanian note that inkjet-printed circuits must be extremely smooth and straight. That difficult feat has been elusive because the drop-by-drop nature of inkjet-printing often leaves uneven printed features on surfaces, especially a circular pattern known as the "coffee ring" effect, they note.

The scientists describe a new way to optimize printing conditions to eliminate the coffee-ring effect and produce smooth, narrow lines with an even edge. The development demonstrates the feasibility of tuning and optimizing inkjet technology for microelectronic applications, they say.

*The article "Inkjet-Printed Line Morphologies and Temperature Control of the Coffee Ring Effect" is scheduled for the March 4 issue of ACS' Langmuir.


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The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Chemical Society. "Wiping Out The Coffee-ring Effect Advances Inkjet Printing Of Electronic Circuits." ScienceDaily. ScienceDaily, 1 February 2008. <www.sciencedaily.com/releases/2008/01/080128113836.htm>.
American Chemical Society. (2008, February 1). Wiping Out The Coffee-ring Effect Advances Inkjet Printing Of Electronic Circuits. ScienceDaily. Retrieved March 31, 2015 from www.sciencedaily.com/releases/2008/01/080128113836.htm
American Chemical Society. "Wiping Out The Coffee-ring Effect Advances Inkjet Printing Of Electronic Circuits." ScienceDaily. www.sciencedaily.com/releases/2008/01/080128113836.htm (accessed March 31, 2015).

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