Sapphire Al2O3 Crystal Substrate 2-4 Inch Double Side Polished with 27.21 W/mK Thermal Conductivity
Price:
Negotiable
MOQ:
5 Pieces
Delivery Time:
1-4 weeks
Brand:
CSIMC
Product Description
Premium Sapphire Al₂O₃ Crystal Substrates
Engineered for next-generation optical, semiconductor, and LED applications, our premium sapphire wafers deliver exceptional optical clarity, superior hardness, and outstanding thermal stability. Manufactured from pure alumina (Al₂O₃), these substrates provide reliable performance in demanding environments.
Key Advantages
- Exceptional optical transparency for high-performance windows, lenses, and filters
- Superior hardness (Knoop 2000 kg/mm²) for scratch and abrasion resistance
- High thermal conductivity (27.21 W/(m·K)) for efficient heat dissipation
- Excellent thermal stability with melting point of 2040°C
- Available in ultrathin 2, 3, and 4-inch double-side polished configurations
Technical Specifications
Optical Properties
| Property | Specification |
|---|---|
| Transmission Range | 0.17 to 5.5 microns |
| Refractive Index | 1.75449 (o) 1.74663 (e) at 1.06 microns |
| Reflection Loss | 11.7% (o-ray) 14.2% (e-ray) at 1.06 microns |
| Index of Absorption | 0.3 × 10⁻³ cm⁻¹ at 2.4 microns |
| dN/dT | 13.7 × 10⁻⁶ at 5.4 microns |
Physical Properties
| Property | Specification |
|---|---|
| Density | 3.97 g/cm³ |
| Melting Point | 2040°C |
| Thermal Conductivity | 27.21 W/(m·K) at 300 K |
| Thermal Expansion | 5.6 × 10⁻⁶/K (parallel C-axis) & 5.0 × 10⁻⁶/K (perpendicular C-axis) |
| Hardness | Knoop 2000 kg/mm² with 2000g indenter |
| Young's Modulus | 335 GPa |
| Dielectric Constant | 11.5 (parallel C-axis) 9.4 (perpendicular C-axis) at 1MHz |
Product Images
Acceptance Check & Handling Instructions
Our sapphire substrates are precision-engineered and require careful handling:
- Products are securely packaged with fragile labeling and shipped via premium carriers
- Inspect outer carton condition upon delivery and photograph before opening
- Open vacuum packaging only in clean room environments during application
- If damage is detected during transit, photograph/video immediately without removing from packaging and contact us for resolution
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Hangzhou Freqcontrol Electronic Technology Ltd.
Location
Room 1106, CIBC, No.198 Wuxing Rd, Hangzhou, P.R.China
Contact Person
Xu