Substrate Alignment for Single and Multilayer Ink Jet Materials Deposition in Digital Fabrication Systems
Abstract:As materials deposition technologies for digital fabrication evolve, the inevitable push toward volume manufacturing will necessitate the application of alignment and inspection technologies to monitor and control the production process. Many of these processes will depend on ink jet deposition of materials onto substrates with previously or subsequently applied structures or images. The successful function of the end product will depend on the precise alignment of materials from layer to layer. This paper describes the development of a Substrate Alignment Tool (SAT) using machine vision methodologies for rapid in-line measurement and adjustment of the alignment between layers. In addition, the SAT can double as an Image Analysis Tool (IAT) for in situ monitoring of process quality. This paper will focus on the design and use of the SAT for ink jet applications. Of particular concern to this study will be the identification of error sources and their contribution to process accuracy and repeatability.
Document Type: Research Article
Publication date: 2007-01-01
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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