optical mask


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optical mask

[′äp·tə·kəl ′mask]
(electronics)
A thin sheet of metal or other substance containing an open pattern, used to suitably expose to light a photoresistive substance overlaid on a semiconductor or other surface to form an integrated circuit.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The next step consisted in set the substrate and the optical mask into a mask aligner KSM model MJB 3 with a mercury lamp (900 W) and expose both to the UV light ([lambda] = 405 nm) per 70 seconds.
Use of the optical lithography in the development of disposable carbon based electrodes/Uso da litografia optica no desenvolvimento de eletrodos descartaveis a base de carbono
The M2 optical gas mask provided improvements over the standard MI optical mask by mounting the filter on the soldier's side instead of behind the head.
The Armored-Vehicle Protective-Mask 3 History
General topics cover the design, processes and equipment created for production in such topics as mask writing (including e-beam and laser mask writers), conventional and advanced optical masks, NGL masks such as electron beam projection and ion projection lithography, mask processing, materials and pellicles, including descriptions of mask substrates, resists, and optical properties, and mask metrology, inspection, evaluation, and repairs (yes, they can be done).
Handbook of photomask manufacturing technology

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