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.
References in periodicals archive ?
Other special mask designs included a diaphragm mask for soldiers needing to communicate and an optical mask for soldiers needing to use optical instruments.
It uses a special method of optical mask analysis that was developed in cooperation with IBM during the early '90s.
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 Visa specifies the optical mask manipulations needed to achieve the same silicon performance targets at multiple foundries.
Further activities will include electronic, ferromagnetic and plasmonic devices as well as the patterning of holographic optical masks.
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).
The new Teron 600 Series reticle defect inspection systems will include several features designed to enable production of advanced optical masks and development of EUV masks, including: