Large Size Alumina Ceramic Substrate
2 year ago
Large Size Low Warpage Alumina Ceramic Substrate
Puwei Ceramic delivers industry-leading alumina ceramic substrates engineered for superior performance in demanding electronic packaging applications. Our proprietary manufacturing technology enables production of exceptionally large substrates (up to 240×280×1mm) with minimal warpage under 0.25%, addressing critical challenges in microelectronics packaging and circuit integration.
These advanced electronic ceramic products provide exceptional dimensional stability, excellent electrical insulation, and superior thermal management properties. Ideal for high-frequency modules and power devices, our substrates ensure reliable performance in precision electronic assemblies, serving as fundamental building blocks for integrated circuits and thick film hybrid microcircuits.
Technical Specifications
Material Composition: 96% Alumina Ceramic (Al₂O₃). Available Sizes: Standard and custom dimensions up to 240×280mm. Thickness Range: 0.2mm to 2.00mm. Maximum Warpage: <0.25% (significantly lower than industry standard). Surface Finish: Precision polished for optimal flatness. Dimensional Tolerance: ±0.1mm to ±0.5mm. Volume Resistivity: >10¹⁴ Ω·cm. Dielectric Strength: >10 kV/mm. Thermal Conductivity: 20-25 W/m·K. Coefficient of Thermal Expansion: 7.2-8.4 × 10⁻⁶/°C. These parameters make our substrates ideal for microwave applications and RF circuits requiring consistent electrical properties.
Product Images
Precision manufacturing of large-format ceramic components for advanced electronics.
Product Features & Advantages
Exceptional Flatness & Minimal Warpage
Our proprietary flat firing technique reduces camber to less than 0.25%, significantly below the 0.39% industry standard. This exceptional flatness ensures perfect alignment in integrated circuit assemblies and prevents stress in mounted components, crucial for high-power microelectronic components.
Advanced Iron Impurity Reduction
Unique iron removal process reduces iron content inclusions by over 95%, eliminating red spots that compromise appearance and electrical properties. This ensures superior volume resistivity and dielectric strength for microwave applications and sensor packaging.
Large Format Manufacturing Capability
We specialize in extra-large substrates (up to 240×280×1mm) that are difficult to source elsewhere, making us the preferred supplier for applications requiring substantial circuit real estate in thick film hybrid microcircuits and optoelectronics applications.
Precision Dimensional Control
Whether mold-stamped or laser-processed, our substrates maintain tight dimensional tolerances critical for automated assembly processes, reducing integration issues and improving manufacturing yield for hybrid micro circuits.
Superior Electrical Performance
High volume resistivity (>10¹⁴ Ω·cm) and exceptional dielectric strength (>10 kV/mm) make our substrates ideal for RF circuits and high-voltage applications where insulation integrity is paramount, serving as reliable insulation elements.
Implementation Guide
- Design Consultation: Collaborate with our engineering team during design phase to optimize substrate specifications for your microelectronics application.
- Material Selection: Choose between standard 96% alumina or explore enhanced material options for specific power devices.
- Fabrication Method: Select appropriate method (mold stamping or laser processing) based on tolerance requirements.
- Surface Preparation: Specify required surface treatments or metallization patterns for thick film printed circuits.
- Integration Planning: Plan assembly considering thermal expansion characteristics for reliable electronic packaging.
- Quality Verification: Implement inspection protocols to verify dimensional accuracy for high-frequency modules.
Application Scenarios
Power Electronics & Semiconductor Packaging
Our large-format, low-warpage substrates excel in power modules, IGBTs, and automotive power systems where flatness ensures proper thermal management and reliability for high-power microelectronic components and IGBT ceramic substrates.
LED & Optoelectronics Systems
Exceptional dimensional stability makes our substrates perfect for high-density LED arrays and display backplanes where precise component placement is critical in optoelectronics applications and LED ceramic substrates.
RF and Microwave Circuits
Low dielectric loss and consistent electrical properties across large areas make our substrates valuable for microwave components requiring stable performance at high frequencies, ideal for microwave and RF ceramic substrates.
Semiconductor Test Equipment
Thermal stability and flatness ensure reliable performance in demanding test environments where temperature cycling can cause conventional substrates to fail, supporting Bare Ceramic Plates for test assemblies.
Medical Imaging Systems
For X-ray detectors, ultrasound systems, and other medical imaging applications, our substrates provide the reliability and precision required in medical electronics, serving as excellent insulation elements and ceramic components.
Customer Benefits
- Improved Manufacturing Yield: Reduced warpage means fewer assembly issues and higher production yields for microelectronics packaging lines.
- Enhanced Product Reliability: Superior materials and manufacturing extend product lifespan in power devices and automotive electronic modules.
- Design Flexibility: Large format capability enables innovative product designs for high-frequency modules and sensor packaging.
- Reduced Total Cost: Fewer rejects and less rework translate to lower overall costs for electronic packaging operations.
- Technical Expertise: Access to engineering support for design optimization of thick film hybrid microcircuits.
- Supply Chain Security: Reliable supply from certified manufacturer with significant capacity for ceramic chips and substrates.
Certifications and Quality Compliance
Our manufacturing facilities and processes are certified to international quality standards (Certificate: GXLH41023Q10642R0S). We maintain rigorous quality control throughout production to ensure consistent performance and reliability for all ceramic components.
Our alumina ceramic substrates comply with relevant industry standards for electronic ceramics and are suitable for automotive, medical, and industrial applications requiring certified components, including power semiconductor ceramic substrates and automotive electronic ceramic substrates.
Customization Services
We offer comprehensive OEM & ODM services to meet specific customer requirements. Our technical team can produce ceramic substrates with thicknesses from 0.2mm to 2.00mm, with custom dimensions and geometries available for applications ranging from laser ceramic heat sinks to high thermal conductivity ceramic substrates.
Our expertise extends to specialized requirements including custom metallization patterns, vias, and cavities. We provide metallized ceramics with various metal coatings (Cu, Al, Au, Ag) optimized for specific application needs in sensor packaging and other specialized fields, including AlN ceramic circuit boards upon request.
Production Process & Quality Assurance
Our manufacturing incorporates advanced techniques developed specifically for large-format, low-warpage substrates:
- Material Preparation: High-purity alumina powder with proprietary iron reduction for superior electronic ceramic products.
- Tape Casting: Precision controlled process for uniform thickness across large areas.
- Special Flat Firing: Proprietary technique minimizing warpage and camber for large size ceramic substrates.
- Precision Machining: Mold stamping or laser processing per tolerance requirements for microwave components.
- Surface Finishing: Precision polishing and cleaning for optimal quality in optoelectronics applications.
- Rigorous Inspection: 100% dimensional verification and electrical testing for all ceramic chips and substrates.
Each production batch undergoes multiple quality checkpoints to ensure dimensional accuracy, surface quality, and electrical performance for all ceramic components and substrates, meeting the demanding requirements of integrated circuit manufacturing and power device assembly.
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