White Melting Alumina Wafer Polishing Plate 300mm with 99.7% Purity for Semiconductor Processing and Electrical Insulation
Price:
us$1~us$100/P
MOQ:
10p
Delivery Time:
negotiable
Brand:
wuxi special ceramic
Product Description
Product Overview
High-purity white melting alumina wafer polishing plates designed for precision electrical insulation applications in demanding industrial environments.
Key Specifications
- Maximum size capability: φ300mm (12 inch diameter)
- Surface roughness: Ra 0.02μm or less
- High density with minimal surface pores
- Excellent bending strength for reduced thickness applications
- Low dielectric loss tangent for high-frequency circuits
Primary Applications
- Alumina substrates for thin film circuits
- Sensor component substrates
- Substrates for semiconductor processing
Technical Properties
| Property Category | Parameter | Unit | Value (99.7% Alumina) |
|---|---|---|---|
| General Properties | Main component | wt% | 99.7-99.9 |
| Density | gm/cc | 3.94-3.97 | |
| Color | - | Ivory | |
| Water absorption | % | 0 | |
| Mechanical Properties | Flexural Strength (MOR) 20℃ | Mpa | 440-550 |
| Elastic Modulus 20℃ | Gpa | 375 | |
| Vickers Hardness | Gpa | ≥17 | |
| Bending Strength | Gpa | 390 | |
| Tensile Strength 25℃ | Mpa | 248 | |
| Fracture Toughness (k l c) | Mpa*M*1/2 | 4-5 | |
| Thermal Properties | Thermal conductivity (20℃) | w/mk | 30 |
| Coefficient of Thermal expansion (25-1000℃) | 1x10-6/℃ | 7.6 | |
| Maximum use temperature | ℃ | 1700 | |
| Electrical Properties | Dielectric Strength (1mhz) | ac-kv/mm | 8.7 |
| Dielectric Constant (1MHZ) 25℃ | - | 9.7 | |
| Volume Resistivity 25℃ | ohm-cm | ＞10¹⁴ | |
| Volume Resistivity 1000℃ | ohm-cm | 2x10⁷ |
Manufacturing Capabilities
Wuxi Special Ceramic Electrical specializes in advanced ceramic manufacturing including alumina, silicon nitride, zirconia, steatite, boron nitride, cordierite, and mullite products.
- Trial production: 15 days (based on drawings or samples)
- Mass production: 30 days
- Custom packaging options available (carton or PLT)
- Global clientele including Toshiba Lighting Group in Japan and Europe
Product Images
Quality Assurance: Mass production includes 100% inspection for consistent performance and reliability.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuxi Special Ceramic Electrical Co.,Ltd
Location
No4 Longshan Road,Xinwu District,Wuxi City,Jiangsu Province
Contact Person
Zhu