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LIGA, a German acronym for (X-ray) lithography (Lithographie), Electroplating (Galvanoformung), and Molding (Abformung), is a process in microtechnology that was developed in the early 1980s  by a team under the leadership of Erwin Willy Becker and Wolfgang Ehrfeld at the Institute for Nuclear Process Engineering (Institut für Kernverfahrenstechnik IKVT)  at the Karlsruhe Nuclear Research Center . LIGA was one of the first major techniques to allow on-demand manufacturing of high-aspect-ratio structures (structures that are much taller than wide) with lateral precision below one micrometre. This capability is important in the fabrication of MEMS devices. Because of the high collimation of X-rays needed, the source must be synchrotron light.
There are today three different types of LIGA technologies, differing in the radiation and preform used:
Researchers at Sandia National Laboratories further developed this technique throughout the 1990s and early 2000s.
Notes and references
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "LIGA". A list of authors is available in Wikipedia.|