Neon is used in excimer lasers that generate ultraviolet light. These lasers are used in photolithography and for annealing amorphous silicon to polycrystalline

Neon is used in excimer lasers that generate ultraviolet light. These lasers are used in photolithography and for annealing amorphous silicon to polycrystalline silicon in flat panel display manufacturing. Laser manufacturers and users already faced a Ukrainian neon crisis during the last round of fighting and made changes to reduce consumption of fresh neon: https://www.photonicsonline.com/doc/how-one-light-source-manufacturer-overcame-the-neon-crisis-0001 https://www.photonicsonline.com/doc/how-one-light-source-man... https://www.gigaphoton.com/wp-content/uploads/2017/10/2017_Excimer-laser-gas-usage-reduction-technology-for-semiconductor-manufacturing.pdf https://www.gigaphoton.com/wp-content/uploads/2017/10/2017_E... I expect that neon price spikes this time are going to impact laser users less than they initially did back in 2015 since lasers now require less fresh neon.