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photolithography |
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photolithographyA lithographic technique used to transfer the design of circuit paths onto printed circuit boards as well as the circuit paths and electronic elements of a chip onto a wafer's surface. photolithography Electronics a process used in the manufacture of semiconductor devices, thin-film circuits, optical devices, and printed circuits in which a particular pattern is transferred from a photograph onto a substrate, producing a pattern that acts as a mask during an etching or diffusion process photolithography [¦fōd·ō·li′thäg·rə·fē] (graphic arts) Lithography in which photographically produced plates or masks are used. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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For instance, photolithography requires two steps to form and pattern a film, whereas MIMIC requires only one - since forming and patterning a polymer film occur simultaneously. Photolithography systems are currently reaching the physical limits of their resolution, and thus problems with advanced semiconductor designs, particularly densely populated circuit patterns, are inevitable. Today's semiconductor manufacturers use photolithography to etch microscopic circuits onto computer chips: They shine light through a mask onto a photosensitive surface to create the circuit's pattern. |
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