Photomask
![A photomask.](/Images/godic/202502/02/Semiconductor_photomask0932.jpg")
![A schematic illustration of a photomask (top) and an integrated circuit created using that mask (bottom).](/Images/godic/202502/02/Mask_illustration.svg0932.png")
![A simulated photomask. The thicker features are the integrated circuit that is desired to be printed on the wafer. The thinner features are assists that do not print themselves, but help the integrated circuit print better out-of-focus. The zig-zag appearance of the photomask is because optical proximity correction was applied to it to create a better print.](/Images/godic/202502/02/OpcedPhotomask0932.png")
![Pellicle Mounting Machine MLI](/Images/godic/202502/02/Pellicle_Mounting_Machine_MLI0932.jpg")
A photomask is an opaque plate with holes or transparencies that allow light to shine through in a defined pattern. They are commonly used in photolithography.
Photo mask
英语百科
- heat exchanger wall
- heat exchanger with channels formed by inflation
- heat exchanger with gilled tubes
- heat exchanger with rotating drum
- heat exchanger with stationary conduit assemblies
- heat exchange station
- heat exchange surface
- heat exchange surface areaame
- heat exchange system
- heat exchange train
- heat exchange tube
- heat exchange tube bundle
- heat exchange tube sheet
- heat exchange type
- heat exchange wall
- heat exchange zone
- heat exchanging apparatus
- heat exchanging process
- heat exchanging system
- heat exchanging unit
- heat exharution
- heat exhauster
- heat exhaustion
- Heat exhaustion due to salt depletion
- heat, exothermic