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Sophisticated manufacturing technologies are becoming available to regular people. In their 2009 annual report Innovations That Could Change the Way You Manufacture, the Society of Manufacturing Engineers (SME) selected personal-scale manufacturing machines as a technology that “could change the way we do manufacturing.” Last year, the Economist said “home-scale, or personalized manufacturing technologies offer a new approach to designing and making objects that will change the way we design, transport, and consume physical products, unleashing new product ideas, new educational methods and new business models. 1 Recently the New York Times ran an article describing the explosive. | Fabrication Technology By B.G.Balagangadhar Department of Electronics and Communication Ghousia College of Engineering Ramanagaram 1 OUTLINE Q Introduction Q Why Silicon Q The purity of Silicon Q Czochralski growing process Q Fabrication processes Q Thermal Q Oxidation Q Etching techniques Q Diffusion 2 Expressions for diffusion of dopant concentration o Ion implantation o Photomask generation o Photolithography Epitaxial growth o Metallization and interconnections o Ohmic contacts Planar PN junction diode fabrication Fabrication of resistors and capacitors in IC s.
