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Self Assembly and Nano Fabrication
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Summary
Technology has made it possible to manufacture miniature objects that are smaller than you can imagine. We live in an age of micro and nano technologies. This video gives an introduction to the concepts of micro and nano technologies in an interesting fashion. It also provides an insight into the unconventional methods of self-assembly that are used to manufacture miniature devices. One such method of self assembly is Photolithography which is used to make 2D shapes on a miniature scale. In this method, a mask is created which is used to expose a specially prepared silicon wafer. The areas that are hit by light are dissolved away and this leaves a mould behind that is filled with metal forming the cube faces. This process is repeated in order to connect the faces with another metal. Once the 2D structure is prepared it is heated until the metal melts eventually forming a cube. This self assembly is made possible through the property of Surface tension. Self assembly makes mass production of these polyhedron containers possible. The process is accomplished in a Clean Room. A Clean Room is a controlled clean environment where micro and nano scale structures are manufactured.
Part 2: http://www.youtube.com/watch?v=Xcd8dHQHBM8
Part 3: http://www.youtube.com/watch?v=brWE3Fk-aXY
Part 4: http://www.youtube.com/watch?v=0kdxMlOF8D8
Keywords: nanotechnology, micro technology, physics, Photolithography, surface tension, silicon wafers, chips, Clean Room
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