Al₂O₃ alumina ceramic substrate is one of the most widely used advanced ceramic materials in electronics, semiconductor processing, and industrial applications. With excellent electrical insulation, high mechanical strength, strong corrosion resistance, and stable thermal properties, alumina ceramic substrates provide an ideal solution for applications requiring reliability under demanding operating conditions.
Manufactured from high-purity alumina ceramic materials ranging from 96% to 99.6%, these substrates are produced using precision ceramic forming and polishing processes to ensure superior flatness, dense structure, and excellent surface quality. Compared with many engineering materials, alumina ceramic offers a balanced combination of performance and cost efficiency, making it a preferred choice for thick-film circuits, LED heat dissipation, power modules, and semiconductor equipment components.
Custom dimensions, surface finishing, and machining services are available according to customer requirements.
Product Specifications
| Tham số | Thông số kỹ thuật |
|---|---|
| Tên sản phẩm | Al₂O₃ Alumina Ceramic Substrate |
| Chất liệu | Gốm nhôm oxit có độ tinh khiết cao |
| Sự tinh khiết | 96%, 99%, 99.6% Optional |
| Màu sắc | Trắng / Màu ngà |
| Thickness | 0.385–2.5 mm or Customized |
| Surface Type | Single-side or Double-side Polished |
| Standard Surface Roughness | Ra 0.8–1.0 μm |
| Fine Polishing | Ra < 5 nm |
| Diamond Mirror Polish | Ra < 1 nm |
| Water Absorption | 0% |
| Nhiệt độ hoạt động tối đa | Up to 1700°C |
| Volume Resistivity | >10¹⁴ Ω·cm |
| Packaging | Cassette Box or Customized |
| Custom Service | Machining, Metallization, Surface Processing |
Typical Material Properties
| Properties | Al₂O₃ 96% | Al₂O₃ 99% | Al₂O₃ 99.6% |
|---|---|---|---|
| Mật độ (g/cm³) | 3.7 | 3.9 | 3.9 |
| Vickers Hardness (GPa) | 11.5 | 13 | 14 |
| Độ bền uốn (MPa) | 358 | 380 | 380 |
| Compressive Strength (MPa) | 2300 | 3000 | 3000 |
| Độ dẫn nhiệt (W/m·K) | 24–25 | 25–30 | 25–35 |
| Thermal Shock Resistance (ΔT°C) | 250 | 200 | 200 |
| Điện trở suất thể tích (Ω·cm) | >10¹⁴ | >10¹⁴ | >10¹⁴ |
Các tính năng chính
Khả năng cách điện tuyệt vời
Alumina ceramic exhibits high dielectric strength and electrical resistivity, providing stable insulation performance in electronic and semiconductor systems.
Độ bền cơ học cao
With excellent hardness and compressive strength, alumina ceramic substrates maintain dimensional stability and long service life under demanding operating environments.
Khả năng chống ăn mòn vượt trội
Al₂O₃ ceramic demonstrates strong resistance to acids, alkalis, and many chemical media, making it suitable for chemically aggressive industrial environments.
Độ ổn định ở nhiệt độ cao
The material maintains excellent structural performance under elevated temperatures and can operate continuously in harsh thermal conditions.
Low Porosity Structure
Dense microstructure minimizes contamination risk and supports high process consistency for precision applications.
Khả năng chống mài mòn tuyệt vời
The high hardness of alumina ceramic significantly improves durability and extends operational lifetime.
Surface Finishing Options
Different surface processing methods are available according to application requirements:
Standard Polish
Ra: 0.8–1.0 μm
Fine Polish
Ra: <5 nm
Diamond Mirror Polish
Ra: <1 nm
Single-side polishing, double-side polishing, grinding, and special surface treatments can be customized.
Các ứng dụng điển hình
Al₂O₃ ceramic substrates are widely used in:
- Thiết bị chế tạo bán dẫn
- Thick-film hybrid integrated circuits (HIC)
- Thin-film electronic devices
- LED heat dissipation substrates
- IGBT power modules
- Electronic insulation components
- Capacitors and sensors
- Vacuum electronic devices
- High-temperature industrial equipment
- Petrochemical systems
- Communication engineering equipment
- Precision industrial components
Standard Available Sizes
Various standard and customized dimensions are available.
Square Substrates
- 2″ × 2″
- 3″ × 3″
- 4″ × 4″
- 4.5″ × 4.5″
Round Ceramic Wafers
- Multiple standard wafer sizes available
- Thickness options from 0.385 mm to 2.5 mm
- Custom dimensions supported
Câu hỏi thường gặp
1. What is the difference between Al₂O₃ ceramic substrates and AlN ceramic substrates?
Al₂O₃ and AlN are both commonly used ceramic substrate materials, but they differ in performance characteristics. Alumina offers excellent insulation, corrosion resistance, mechanical strength, and cost efficiency. Aluminum nitride provides significantly higher thermal conductivity and is often selected for high-power heat management applications. Alumina remains one of the most cost-effective choices for general electronic and semiconductor applications.
2. Can alumina ceramic substrates be customized?
Yes. We support customized production according to customer drawings and technical requirements. Available options include:
- Customized thickness
- Lỗ và rãnh chính xác
- Special geometries
- Single or double-side polishing
- Laser machining
- Metallization services
- Semiconductor-grade surface processing
OEM and small-batch production are supported.
3. Why are alumina ceramic substrates widely used in semiconductor industries?
Alumina ceramic substrates combine high electrical insulation, excellent chemical stability, strong mechanical properties, and reliable thermal performance. Their dense structure and smooth surface also help reduce contamination risks and improve process stability. These advantages make them widely used in semiconductor equipment, power electronics, LED packaging, and industrial electronic systems.
Tại sao nên chọn chúng tôi
- High purity raw materials
- Strict quality control process
- Khả năng gia công chính xác
- Stable dimensional tolerance
- Fast production lead time
- OEM and custom design support
- Technical assistance from engineering team
We accept customized drawings and provide tailored ceramic solutions according to your project requirements.
Đánh giá
Chưa có đánh giá nào.