Aluminum Nitride Ceramic Substrate for Electronic Packaging

Laser Precision Machining Services for Aluminum Nitride (AlN) Substrates

Puwei delivers micron-level precision for advanced Electronic Packaging and high-frequency applications with our state-of-the-art UV and fiber laser machining services for high-purity Aluminum Nitride substrates.

Why Choose Laser Precision Machining for AlN?

• Micron-Level Accuracy: Achieve features as fine as 10μm with ±2μm positioning accuracy.
• Non-Contact Process: Eliminates mechanical stress, tool wear, and substrate damage.
• Complex Design Freedom: Create intricate geometries impossible with conventional methods.
• Preserves Material Integrity: Minimal heat-affected zone protects AlN's superior thermal and electrical properties.
• Rapid Prototyping to Production: Accelerate your development cycle for Microelectronics Packaging.

Technical Specifications & Capabilities

Material Properties

Base Material: High-Purity Aluminum Nitride (AlN). Thermal Conductivity: Standard ≥175W/m·K, High-grade ≥200W/m·K. Dielectric Strength: 15-20 kV/mm. Thermal Expansion: 4.5-5.5 ppm/°C (RT-400°C).

Laser Machining Parameters

Minimum Feature: 10μm. Positioning Accuracy: ±2μm. Surface Roughness: Ra ≤ 0.4μm. Thickness Range: 0.10mm - 3.0mm. Max Substrate Size: 150mm × 150mm.

Laser Processes Offered

• Laser Ablation & Micro-structuring: For fine grooves and channels in Sensor packaging.
• Precision Laser Cutting: Clean edges for High frequency module substrates.
• Laser Drilling & Via Formation: High-density interconnects for Microwave Applications.

Key Applications for Laser-Machined AlN Substrates

Our services enable next-generation performance in critical industries:

• Power Electronics & RF/Microwave: Ideal for Power Devices, Microwave Components, and RF circuits requiring superior thermal management and signal integrity.
• Advanced Optoelectronics: Precision features for laser diode mounts, optical alignment, and Optoelectronics Applications.
• MEMS & Advanced Sensor Systems: Create intricate microstructures with high dimensional stability.
• High-Density Integrated Circuit Packaging: Enables fine-pitch interconnects and advanced thermal structures for 3D packaging and system-in-package (SiP).

Your Project Implementation Steps

1. Design & Feasibility Review: We analyze your requirements for manufacturability.
2. CAD Programming & Fixture Design: Preparing for precise laser processing.
3. Laser Parameter Optimization: Fine-tuning for your specific AlN material and design.
4. Precision Machining & Quality Inspection: Automated processing followed by rigorous 100% dimensional inspection.
5. Post-Processing & Delivery: Final cleaning and documentation for traceability.

Business Value for OEMs & Design Engineers

• Enhance Performance: Up to 50% better heat dissipation enables higher power density and extends device lifetime.
• Reduce Costs: Precision features minimize assembly rework and can reduce external cooling requirements.
• Accelerate Innovation: Rapid prototyping allows faster iteration for complex Microelectronics designs.
• Ensure Quality & Consistency: ISO 9001:2015 certified processes and statistical process control deliver high yield and reliability.

Customization & Quality Assurance

Puwei offers tailored solutions to meet exact application needs:

• Material & Geometry: Choose thermal conductivity grade, thickness (0.10-3.0mm), and custom shapes.
• Surface Finish & Metallization: Options include as-fired, ground, or polished surfaces, compatible with DBC, DPC, AMB processes.
• End-to-End Quality Control: From raw material verification to final inspection, ensuring every substrate meets stringent specifications for high-reliability applications.

Puwei's Laser Precision Machining Service transforms high-purity Aluminum Nitride into performance-critical components. Combining advanced material science with precision laser technology, we empower your innovations in power electronics, high-frequency systems, and advanced packaging with reliability, precision, and design flexibility.