Designed for high-end semiconductor fabrication, nanotechnology research, and advanced micro-optics, our Double-Side Polished (DSP) silicon substrates offer exceptional flatness and an industry-leading mirror finish on BOTH surfaces.
These wafers are the ideal choice for applications requiring light transmission, double-sided lithography, or multi-layer device fabrication.
| Property | Details |
| Material Quality | CZ High-Purity Monocrystalline Silicon (Si) |
| Surface Finish | Double-Side Polished (DSP) — Mirror finish on BOTH sides |
| Surface Roughness | Ra < 0.5 nm (Atomic flatness) |
| Crystal Orientation | <100> |
| Available Diameters | 2", 3", 4", 5", 6", 12" |
| Primary Applications | MEMS, E-beam Lithography, SEM/TEM Carriers, Optics |
Optically Flat Surfaces: The flawless mirror-like finish on both sides eliminates back-surface scattering, making them essential for precision optical, laser, and infrared (IR) transmission experiments.
Strict Contamination Control: Handled, inspected, and packaged in a controlled cleanroom environment to ensure zero metal stains, scratches, or particle defects.
Premium TTV: Optimized Total Thickness Variation (TTV) ensures high uniformity during thin-film deposition (CVD/PVD) or spin coating.
Professional Packing: Vacuum-sealed or securely packed in pristine, anti-static wafer cassettes or individual coin shippers (depending on the size ordered) to prevent surface contamination.
International Protection: Double-bagged and heavily padded to guarantee safe, defect-free arrival at your university or corporate laboratory.
Need Prime Grade Single-Side Polished (SSP) Wafers? Please check our https://www.ebay.com/itm/178194175739for top-tier single-side mirror substrates.
Need Standard Testing Wafers? Please check our https://www.ebay.com/itm/178191929918for budget-friendly Test-Grade substrates.
Custom Batch Requirements? If you need a specific resistivity (Ohm-cm), thickness, or dopant (P-type/N-type), please contact us via eBay messages to confirm current batch specifications before ordering.