Production of Microelectronic Components by Electrophoretic Deposition
In this process a component is first imaged as a conductive pattern on a plastic film by conventional photolithography. This pattern is then immersed into a stable, dispersed and electrostatically charged suspension of particles. A voltage is applied between the conductive pattern and a counter electrode in the suspension, causing a current flow through the suspension, and attracting particles to the conductive pattern. The current creates an electro-chemical environment at the surface which causes the particles to deposit onto the pattern. This deposition can range from a monolayer to many thousands of particles thick. Using a binder, these deposited particles can then be transferred to another surface to be sintered or fused forming continuous lines or layers. The photolithographically produced conductor pattern can be re-used repeatedly to create more depositions. In this manner a single pattern produced by photolithography can be used to make multiple parts with photolithographic scale resolution.
Document Type: Research Article
Publication date: 2004-01-01
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.
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