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Inkjetprinting of Vertically Integrated RC-Circuits

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Both capacitors and resistors are widely used passive components. Considering micro hybrid circuits printing of both devices is required. Striving for space-saving layouts, multi-layer capacitors are requested. Additionally, vertical integration of devices is desirable. However, today's screen printing technology cannot be applied to uneven surfaces, limiting the aspect ratio and the ability of vertical integration. Thus, usually SMD capacitors are preferred. In order to increase the degree of vertical integration, resistors are printed on top of printed capacitors, creating RC-circuits. The mask-less inkjet printing allows for realization of such structures. To keep the process simple, no in-between-sintering is applied; the entire component is co-fired in one final step.

To model the electric behavior of the RC-circuits, both the capacitors' and resistors' behavior is compared to non-integrated devices of the same size and shape. Based on these results, it is shown how existing single-device models can be applied to integrated devices.

To improve the sintering process, furthermore the impact of heat on the behavior of the used organic additives is examined. The solid additives have to burn thoroughly. It is analyzed whether there is a liquid phase during sintering and how this may affect the resulting structure.
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Document Type: Research Article

Publication date: 2013-01-01

More about this publication?
  • 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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