Semiconductor 99.8% Alumina Ceramic Focus Ring

Precision Advanced Ceramics — Custom Semiconductor Plasma Etch Focus Ring & Pedestal Base Specialist Over a decade of dedicated expertise in high-purity advanced technical ceramics. Delivering high-precision engineered ceramic components for global semiconductor fabrication, wafer etching equipment, and precision vacuum systems. Product Overview Specification Table Summary : Alumina Purity: ≥ 99.8% (Al2O3) Bulk Density: ≥ 3.92 g/cm³ Surface Flatness: ≤ 0.003 mm (3 μm, Laser