Definition of photomask in English:

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Pronunciation: /ˈfōdōˌmask/


A photographic pattern used in making microcircuits, ultraviolet light being shone through the mask onto a photoresist in order to transfer the pattern.
Example sentences
  • Like the technologies used to create the photomasks and microchips, quality assurance tools such as mask and wafer inspection systems are both costly and challenging.
  • Microlithography projects a pattern from a photomask through an optical system to create IC chips using ultraviolet laser light.
  • It appears that the costs of not only tools but of photomasks are poised to skyrocket.
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