Positive Photoresists - Exposure
نویسنده
چکیده
There are a large number of materials, both organic and inorganic, which are sensitive to light (see, for example, Ref. 1). However, over the years one specific class of photosensitive materials has been dominate in the application of integrated circuit manufacturing -the diazonaphthoquinone/novolak system found in conventional g-line and i-line positive photoresists. Rather than present a comprehensive review of photoresist materials here, I will limit my discussion to this one material, though the general principles will often apply to any photoresist. (For an excellent in-depth text on these materials, consult Ref. 2).
منابع مشابه
Exposure of Photoresists
Mask-Aligner and Stepper The typical emission spectrum of a mask aligner or stepper with Hg light source and without optical selective mirrors/filters contains g(wavelength 436 nm), h(405 nm) and i-line (365 nm), with an i-line intensity approx. 40 % of the total emission between 440 and 340 nm. The absorption spectrum (spectral sensitivity see next section) of AZ® and TI photoresists is matche...
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Mask-Aligner and Stepper The typical emission spectrum of a mask aligner or stepper with Hg light source and without optical selective mirrors/filters contains g(wavelength 436 nm), h(405 nm) and i-line (365 nm) (fig. right-hand), with an iline intensity approx. 40 % of the total emission between 440 and 340 nm. The absorption spectrum (spectral sensitivity see next section) of AZ® and TI photo...
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