・By using the ion-assisted deposition method, we have succeeded in producing a special yttrium film with excellent plasma resistance.
AGC's yttrium film has a different crystal orientation, high hardness, and high density than yttrium films made by thermal spraying, AD, or other PVD methods.
・It also has excellent plasma resistance in high-temperature environments; for example, its durability at 200°C is more than 60 times that of quartz.
It is also possible to give the yttrium film heat resistance that will not crack even in environments of 500°C to 800°C.
・Applications include top plates, electrostatic chucks, and observation windows of etching and deposition equipment. Coatings can be made on a variety of substrates, including quartz, alumina, and AlN, so please contact us if there are any parts you would like to evaluate.