Two challenges overcome The projector at the heart of EUV lithography, which transfers the photomask image onto the silicon wafer, consists of only two reflective mirrors, like an astronomical ...

Located at the 10,000-foot summit of Haleakala, the $340 million Inouye Solar Telescope relies on a 13-foot mirror and an elaborate cooling system to hone in on the sun’s roiling surface.

On a space mirror [as in the James Webb Space Telescope], it would be 2cm [0.75in]. On an EUV mirror, it would be 0.1mm,” he explains. This ultra-smooth mirror surface combined with systems that ...

The first 18 pieces for one of the European Southern Observatory’s Extremely Large Telescope ... will have five mirrors to help further study the cosmos, including our solar system, exoplanets ...