Advances in Piezoelectric Ink Jet Micropumps for Precision Deposition Using Silicon Nozzles
Abstract:Piezoelectric ink jet micropump devices offer the capability to precisely deposit fluids within microscopic structures. Manufacturers of flat panel displays, using light emitting polymers, have employed piezoelectric ink jet micropumps in their fabrication process to accurately and consistently place fluids within the pixel structure of displays. As an integral tool in this manufacturing process, the piezoelectric ink jet micropump must maintain tolerances necessary for adequate fluid placement in the display pixels and provide jetting operability for reliable functioning with a robustness to attain sufficient life. An industry push to increase display pixel resolution, demand for improved jetability of complex fluids, and the requirement for longer ink jet micropump service life has mandated the advancement of new technologies to meet these demands. State-of-the-art MEMS techniques have been developed to fabricate high quality silicon nozzles for these demanding applications. This paper describes how new silicon nozzle technology has been applied to a piezoelectric ink jet micropump to improve drop placement accuracy, jetting operability, and chemical resistance.
Document Type: Research Article
Publication date: 2004-01-01
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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