Proceedings PaperSynchrotron radiation microlithography and etching (SMILE) for MEMS fabrication
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With the established technique of LIGA process, fabrication of three dimensional structure in micron and submicron order has become feasible. High aspect ratio microstructure technology (HARMST) have been studied uisng synchrotron radiation microlithography and etching (SMILE). Plane-pattern to cross-section transfer (PCT) technique, has been applied for forming of three-dimensional microstructures with novel shapes using deep X-ray lithography. On the other hand, a new approach of three-dimensional (3-D) micromachining without using any masks is proposed. This approach is a direct writing using synchrotron radiation (SR) etching. A few results of 3-D micromachining of PTFE using SR etching in vacuum and under an atmospheric pressure of He are also demonstrated.