Definition of photomask in English:

photomask

Line breaks: photo|mask
Pronunciation: /ˈfəʊtəʊmɑːsk
 
/

noun

Electronics
A photographic pattern used in making microcircuits, ultraviolet light being shone through the mask on to a photoresist in order to transfer the pattern.
More 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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