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High Precision Jetting and Dispensing Applications Using A Piezoelectric Micropump

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Piezoelectric ink jet offers a promising combination of productivity, reliability and uniformity that are appropriate for deposition of precise amounts of material in manufacturing environments. As a micropump, the printhead can place drops very accurately onto a substrate, with placement errors of less than +/− 10 microns. The Spectra SX-128 printhead contains a robust material set, which allows for precision dispensing in a wide variety of applications. For example, flat panel displays (FPD) can be manufactured by using the Spectra SX-128 printhead to ink jet the organic electronic materials, including both large molecule polymers (LEP) and PEDOT. These materials are normally deposited using spin coating, which is a high cost, low yield process. Another benefit of the SX-128 is the ability to calibrate individual nozzles to meet stringent uniformity requirements for display manufacture. By controlling the output of each channel individually, drop sizes are equalized and uniformity requirements for display manufacture can be achieved. The process of measuring very small drops and calibrating the 128 jet printhead to achieve +/− 2% uniformity will be described further in this paper.
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Document Type: Research Article

Publication date: January 1, 2003

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  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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