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  • photolithography A lithographic technique using an image produced by photography for printing on a print-nonprint, sectioned surface.
  • etching The engraving of a surface by acid, acid fumes or a tool; a process extensively used in the manufacture of reticles.
  • slit An aperture, usually rectangular in shape, with a large length-to-width ratio, and a fixed or adjustable shape through which radiation enters or leaves an instrument. The aperture is generally small as compared to the light source.
  • pattern A device that determines the lens shape in the cutting or edging phase of fabrication. It also is used to denote the arrangement of markings on a reticle.
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