Best Quality 12 Inch CZ N Type Single Polished Film Dummy Test Silicon Wafer. Multiple Diameter Options: Available in 150mm, 200mm, and 300mm sizes to suit various equipment needs. Customizable Specifications: Material, specifications, and optical coatings can be customized based on customer needs. High Precision Polishing: Front and edge surfaces are polished with tight tolerances for high-quality testing. Wide Resistivity Range: Resistivity options from 1 to 100 Ohm.cm to match different semiconductor requirements. CZ Growth Method: Manufactured using the Czochralski (CZ) method for high crystal quality. OEM and ODM Services: Full OEM and ODM services available with customization from samples. 100% Quality Inspection: Every finished product undergoes 100% visual and function inspection.