LED Sapphire 4" Pss Epi-Polished Sapphire Substrate

LED Sapphire 4" Pss Epi-Polished Sapphire Substrate. High Purity Material: 99.996% Al2O3 monocrystalline with no block marks, twins, or bubbles. Precise Surface Finish: Epi-polished front surface with Ra < 0.2nm, suitable for LED growth. Customizable Specifications: Customize material, size, orientation, and optical coating based on needs. Multiple Orientation Options: Available in C-plane, M-plane, A-plane, R-plane, and off-axis variants. Versatile Diameter Sizes: Offered in 2-inch, 3-inch, 4-inch, and 6-inch diameters. Flexible MOQ: Low MOQ of 5pcs for inventory items and 10-25pcs for customized orders. Fast Delivery: 5 workdays for standard stock items; 2-3 weeks for customized products. Secure Packaging: Class 100 clean room cleaning with vacuum packaging in cassettes.