• Item : Pez ring / Upper, Lower
• Dimension : ∅ 508 x 276.86T
• Material : AL2O3
• Method of construction : CIP (Cold lsostatic press)
Y203 is a material that is very resistant to plasma as well as rare earth element, it also has a high unit price. It is possible to manufacture the material by over-assembling the Y203 powder within itself.
In the Bevel Etch process, it is mounted on the ESC side where the Process Wafer goes up to protect the Wafer and focus the Plasma to form a uniform Etching Rate. In particular, it induces uniform etching of the Edge area, which is the end of the Wafer.
[ Competitiveness ]
• Securing the production of Yittria materials that are optimal for the product's application
: Plasma resistance / High strength / High density / Particle Free
• Securing mass production system, stable production through planned production