99.6% Alumina Ceramic Substrate For High-power Laser Diodes
11 month ago
99.6% High-purity Polished Grade Alumina Ceramic Substrate
Product Overview
Puwei's 99.6% High-purity Polished Grade Alumina Ceramic Substrate represents the pinnacle of advanced material engineering for high-performance electronic applications. This premium substrate delivers exceptional electrical insulation, thermal management, and mechanical stability, making it ideal for demanding Electronic Packaging and Microelectronics applications.
With its ultra-smooth surface finish and superior material properties, this substrate enables precise circuit patterning and reliable performance in advanced High-Frequency Modules and Power Devices.
Technical Specifications
Engineered for precision and reliability, our alumina substrate meets the most stringent requirements for advanced electronic applications:
- Alumina Content (Al₂O₃): 99.6%
- Volume Resistivity: >10¹⁴ Ω·cm
- Flexural Strength: 300-400 MPa
- Mohs Hardness: ~9
- Thermal Conductivity: 20-30 W/(m·K)
- Thermal Expansion Coefficient: 6-8 × 10⁻⁶ /°C
- Surface Roughness (Polished): < 0.5 μm
- Dielectric Strength: Excellent performance
Complete technical datasheets with detailed performance metrics available upon request.
Product Features & Advantages
Material Performance Benefits:
- Ultra-Smooth Surface Finish: Polished to <0.5 μm roughness for superior Thick Film Printed Circuit applications and precise metallization
- Exceptional Electrical Insulation: Volume resistivity >10¹⁴ Ω·cm ensures reliable performance as Insulation Elements in high-voltage applications
- Optimized Thermal Management: Balanced thermal conductivity (20-30 W/(m·K)) with low CTE provides stable performance in Thermoelectric Semiconductor Module applications
- Mechanical Durability: High flexural strength (300-400 MPa) and Mohs hardness ~9 withstand rigorous assembly processes
Manufacturing Advantages:
- Precision Polishing Technology: Advanced mechanical-chemical polishing ensures surface quality critical for Hybrid Microcircuits
- Consistent Quality: Rigorous process controls guarantee batch-to-batch consistency for volume production
- Cost-Effective Performance: Superior alternative to premium materials for applications where extreme thermal conductivity isn't required
Integration and Processing Guide
Follow these steps for optimal performance in your manufacturing process:
- Design Finalization: Complete circuit design and substrate specifications with our engineering support
- Surface Preparation: Clean substrate using standard industry practices (ultrasonic cleaning with IPA)
- Circuit Deposition: Apply conductive layers via sputtering, evaporation, or screen printing techniques
- Pattern Definition: Utilize photolithography and etching for precise circuit patterns
- Component Assembly: Mount semiconductor dies and components using epoxy or solder processes
- Interconnection: Establish electrical connections with wire bonding
- Final Encapsulation: Apply protective coatings and conduct comprehensive testing
Application Scenarios
RF and Microwave Systems:
Essential for manufacturing precision transmission lines and filters in 5G infrastructure and satellite communication systems, particularly for Microwave Components and High-Frequency Modules.
Advanced Semiconductor Packaging:
Used as interposers and package substrates for high-performance Integrated Circuits, CPUs, and GPUs where thermal stability and electrical insulation are critical.
Power Electronics:
Ideal substrate for High Power Microelectronic Components and power devices requiring reliable insulation and thermal management.
Sensor and MEMS Applications:
Perfect platform for Sensor Packaging and micro-electromechanical systems (MEMS) fabrication, leveraging the flawless surface quality.
Hybrid Microelectronics:
Foundation for custom Hybrid Microcircuits in aerospace, medical, and military applications demanding extreme reliability.
Customer Benefits
- Improved Manufacturing Yield: Superior surface quality reduces defects in lithography and metallization processes
- Enhanced Product Performance: Enable higher frequency operation and better signal integrity in electronic assemblies
- Design Flexibility: Support for finer features and complex circuits enables greater miniaturization
- Extended Product Lifespan: Robust construction resists thermal cycling and mechanical stress for longer service life
- Technical Partnership: Access Puwei's expertise in advanced ceramic solutions including Alumina Ceramic Substrate technologies
Certifications & Compliance
Puwei Ceramics maintains the highest quality standards with comprehensive certifications:
- ISO 9001 Certified manufacturing facilities ensuring consistent quality management
- Full compliance with international RoHS and REACH environmental regulations
- Certificate Number: GXLH41023Q10642R0S
- Proprietary technologies for advanced ceramic material production systems
Customization Options
Puwei offers comprehensive OEM and ODM services to meet specific application requirements:
- Precision Dimensions: Thickness from 0.2mm to 2.00mm with custom planar sizes
- Large-Format Expertise: Specialization in large-size substrates including 240×280×1mm and 95×400×1mm configurations
- Complex Features: Custom holes, cutouts, and edge profiles based on customer drawings
- Surface Finish Options: Polished, as-fired, or ground finishes to match application needs and cost requirements
Production Process & Quality Control
Our manufacturing process ensures consistent high quality through rigorous controls:
- Material Preparation: Selection of high-purity (>99.6%) alumina powder with precise binder formulation
- Forming Process: Advanced tape casting or dry pressing for uniform density green sheets
- High-Temperature Sintering: Controlled firing profiles achieve near-theoretical density
- Precision Finishing: Multi-stage lapping and mechanical-chemical polishing for ultra-smooth surfaces
- Comprehensive Inspection: 100% quality control for dimensions, surface quality, and performance properties
- Certified Packaging: Cleanroom packaging with damage-protection protocols
Customer Testimonials
"The surface quality and dimensional consistency of Puwei's polished alumina substrates have been instrumental in improving our yield for high-frequency antenna modules. Their technical support was invaluable."
"We needed custom large-format substrates for laser products. Puwei delivered challenging specifications with excellent documentation and on-time delivery. A true strategic supplier."
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