lithography
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lithography
A printing technology that dates back to 1798 when Alois Senenfelder developed a method of imaging limestone from which a print was produced. Based on the principle that oil and water do not mix,...
Dictionary
Definition: lithography
A printing technology that dates back to 1798 when Alois Senenfelder developed a method of imaging limestone from which a print was produced. Based on the principle that oil and water do not mix, an aluminum or plastic plate is coated with a photopolymer film that is exposed to light through a photographic mask. The exposed areas are chemically "hardened," and the unexposed areas are dissolved when the plate is put through a chemical process, which is the next stage. When printing a page, the plate is dampened, and the water adheres only to the unexposed, non-image areas, which repell the greasy ink that is applied to the plate immediately thereafter.
The most common lithographic printing uses the offset method, in which the ink is "offset" onto a rubber-coated cylinder that is pressed against the paper. See offset press.
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Additional Results
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The story of the first photograph
If you look carefully, you can see the outbuildings, courtyard, trees, and surrounding landscape as Nicephore saw it through his window, all the way back in 1826. And the rest is history.
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Improving chip density by a factor of 100
According to the semiconductor industry, maskless nanolithography is a flexible nanofabrication technique which suffers from low throughput. But now, engineers at the University of California at...
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New nanotechnology to speed up computers
University of California at Santa Barbara (UCSB) researchers have developed new nanoscale structures that will help to speed up computers. This research project was funded by IBM, Intel and other...
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Beijing Olympic logos written by nano pens
Northwestern University (NU) researchers have used a new printing technique, called Polymer Pen Lithography (PPL), to print 15,000 Beijing Olympic logos on one square centimeter. Besides this...
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Intel's dry lithography squeezes out profits for 45nm
Yesterday was Intel research day where Intel showed off a wide range of research projects that aim to keep the company healthy in the near to long term. In the Computational Lithography demo...
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Images: HP-Nanolitho's imprint lithography tool
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Chipmakers, N.Y. state seed lithography project
AMD, IBM, Micron and Infineon, as well as the University at Albany, are allocating more than $580 million toward the effort.
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Intel funds EUV lithography development
Intel on Monday said it will provide Cymer with $20 million over the next three years to accelerate development of light sources for extreme ultraviolet (EUV) lithography. EUV lithography, which...
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ASML touts new lithography tools
Semiconductor equipment maker ASML Holding this week delivered what it says is the first 157-nanometer lithography machine to the Interuniversities MicroElectronic Center (IMEC), a European...
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