High Quality 96% Aluminum Oxide Substrate Al2O3 Alumina Ceramic Wafer
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| Customization: | Available |
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| Application: | Electronic Devices, Lighting, Power Supply, Semiconductors |
| Material: | Al2O3 |
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Basic Info.
- Model NO.
- JJBP-0111-0011
- Forming Method
- Tape Casting
- Feature
- High Mechanical Strength, Small Dielectric Loss
- Usage
- Blank Ceramic Circuit Board
- Optional Color
- White, Ivory, Pink, Black
- Standard Thickness
- 0.25-2.0mm Available
- Thickness Tolerance
- ±0.03/0.05mm (Depending on Thickness)
- Length and Width Tolerance
- ±2mm
- Customized Service
- OEM, ODM, Prototyping, Mass Production
- Transport Package
- Individual Packaging
- Trademark
- Jinghui
- Origin
- China
- HS Code
- 6914100000
- Production Capacity
- 50000 Pieces/Month
Packaging & Delivery
- Package Size
- 27.00cm * 17.00cm * 20.00cm
- Package Gross Weight
- 2.000kg
Product Description
Alumina ceramic wafers are made primarily of high-purity aluminum oxide (Al2O3) through a series of precision ceramic manufacturing processes. They typically range in thickness from a few tenths of a millimeter to several millimeters and offer excellent overall performance.
Key Features
The widespread use of alumina ceramic wafers is primarily due to their outstanding properties.
1. High Hardness and Wear Resistance: Its hardness is second only to a few materials like diamond and silicon carbide, making it extremely wear-resistant and durable.
2. Excellent Electrical Insulation: It maintains excellent electrical insulation properties even under high temperatures, high pressures, and high frequencies, a key requirement for many electronic components.
3. High Mechanical Strength: Its high flexural and compressive strengths allow it to withstand moderate mechanical stress and loads.
4. High Temperature Resistance and Thermal Stability: With a melting point of up to 2050°C and a low coefficient of thermal expansion, it maintains its shape and properties even in high-temperature environments and resists deformation.
5. Chemical Resistance: It exhibits excellent resistance to most acids, bases, and solvents, and is chemically stable.
6. Good Thermal Conductivity: While not as good as metal, it is worse than most ceramic materials, facilitating heat dissipation within components.
| Alumina Ceramic Wafer | |||
| Item | Unit | 96% Al2O3 | |
| Mechanical Properties | |||
| Color | / | / | White |
| Density | Drainage Method | g/cm3 | ≥3.70 |
| Light Reflectivity | 400nm/1mm | % | 94 |
| Flexural Strength | Three Point Bending | MPa | >350 |
| Fracture Toughness | Indentation Method | MPa·m1/2 | 3.0 |
| Vickers Hardness | Load 4.9N | GPa | 14 |
| Young's Modulus | Stretching Method | GPa | 340 |
| Water Absorption | % | 0 | |
| Camber | / | Length‰ | T≤0.3: ≤5‰, Others: ≤3‰ |
| Thermal Properties | |||
| Max. Service Temperature (Non-loading) | / | ºC | 1200 |
| CTE (Coefficient of Thermal Expansion) |
20-800ºC | 1×10-6/ºC | 7.8 |
| Thermal Conductivity | 25ºC | W/m·K | >24 |
| Thermal Shock Resistance | 800ºC | ≥10 Times | No Crack |
| Specific Heat | 25ºC | J/kg·k | 750 |
| Electrical Properties | |||
| Dielectric Constant | 25ºC, 1MHz | / | 9.4 |
| Dielectric Loss Angle | 25ºC, 1MHz | ×10-4 | ≤3 |
| Volume Resistivity | 25ºC | Ω·cm | ≥1014 |
| Dielectric Strength | DC | KV/mm | ≥15 |
Due to these properties, alumina ceramic wafers play a key role in the electronics industry.
1. IC substrates/packages: Serving as a carrier for the chip, they provide mechanical support, electrical insulation, and heat dissipation.
2. Insulating heat sinks: Used between power devices (such as IGBTs) and LED wicks and heat sinks, providing both insulation and thermal conductivity.
3. Circuit boards: Used in high-temperature or high-frequency circuits (such as radio frequency microwave circuits).
We can make various specifications. The table below shows our standard sizes.
| Alumina Ceramic Wafer | |||||||
| 96% Al2O3 | |||||||
| Thickness (mm) | Maximum Size (mm) | Shape | Forming Method | ||||
| As Fired | Lapped | Polished | Rectangular | Square | Round | ||
| 0.25 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| 0.3 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| 0.38 | 140×190 | √ | Tape Casting | ||||
| 0.5 | 140×190 | √ | Tape Casting | ||||
| 0.635 | 140×190 | √ | Tape Casting | ||||
| 0.76 | 130×140 | √ | Tape Casting | ||||
| 0.8 | 130×140 | √ | Tape Casting | ||||
| 0.89 | 130×140 | √ | Tape Casting | ||||
| 1 | 280×240 | √ | Tape Casting | ||||
| 1.5 | 165×210 | √ | Tape Casting | ||||
| 2 | 500×500 | √ | Tape Casting | ||||
| Other special thicknesses within the thickness range of 0.1-2.0mm can be achieved by lapping. | |||||||
We have been making ceramic substrates for more than 15 years. We can meet your various customized requirements, and our products have high dimensional accuracy and excellent performance. Please feel free to contact us.
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