Optical N/P-Type Polished Silicon Single Crystal Si Semiconductor Wafer. Customizable Specifications: Material, specifications, and optical coating can be customized to meet exact needs. Multiple Diameter Options: Available in 150mm, 200mm, and 300mm diameters with precise tolerances. High Precision Surface: Polished surface with low impurity levels and strict TTV, BOW, and WARP limits. Fast Inventory Delivery: Inventory items delivered within 5 workdays for immediate needs. Comprehensive Shipping: Supports DHL, Fedex, TNT, UPS, EMS, SF, and other global carriers. Flexible Payment Methods: Accepts T/T, PayPal, and other standard international payment terms. OEM/ODM Services: Full OEM and ODM services available with customization from samples. Strict Quality Control: 100% visual and function inspection for all finished products.