96% Alumina Ceramics
2 year ago
Puwei Laser Drilling Alumina Ceramic Substrate: Precision Interconnects for Advanced Electronics
Puwei's Laser Drilling Alumina Ceramic Substrate is a precision-engineered solution for modern high-density electronics. Utilizing advanced UV/picosecond laser micromachining on high-purity Al₂O₃, we create substrates with ultra-precise micro-vias. This technology enables complex 3D circuit routing, addressing critical needs for miniaturization, thermal management, and signal integrity in sophisticated electronic packaging and microelectronics packaging.
Key Features & Advantages
- Ultra-Precision Micro-Vias (±10μm): Ensures exceptional hole accuracy for high-density interconnects in miniaturized high-frequency modules and integrated circuit packaging.
- Superior Signal Integrity: Volume resistivity >10¹⁴ Ω·cm provides reliable isolation, minimizing loss in RF circuits and microwave applications.
- Enhanced Thermal Management (15-30 W/m·K): Effectively dissipates heat from high-power microelectronic components; vias can be optimized as thermal pathways.
- Robust Mechanical Strength: Withstands stress, vibration, and thermal cycling in demanding automotive, aerospace, and industrial settings.
- Optimized for Metallization: Clean, taper-controlled via walls ensure high-quality plating/filling, perfect for reliable thick film hybrid microcircuits.
Technical Specifications
Our substrates are manufactured to exacting standards for consistent performance in high-reliability applications.
Material & Base Properties
- Material: 96% or 99% High-Purity Al₂O₃
- Thickness: 0.25mm, 0.38mm, 0.5mm, 0.635mm, 1.0mm (Custom available)
- Panel Size: Up to 150mm x 150mm standard (Larger on request)
- Flexural Strength: 250 - 400 MPa
Laser Drilling Capabilities
- Minimum Via Diameter: 50 μm (Standard), down to 25 μm (Advanced)
- Diameter Tolerance: ±10 μm (Standard), ±5 μm (Precision)
- Aspect Ratio: Up to 10:1
- Technology: UV/Picosecond Laser for minimal heat-affected zone
Electrical & Thermal Properties
- Volume Resistivity: > 10¹⁴ Ω·cm
- Dielectric Constant (εr): ~9.7 @ 1 MHz
- Breakdown Voltage: > 15 kV/mm
- Thermal Conductivity: 15 - 30 W/(m·K)
Advanced Laser Drilling Technology
Our ""cold"" ablation process using UV/picosecond lasers minimizes thermal stress, producing clean, crack-free vias critical for reliability. This offers key advantages over mechanical drilling: no tool wear for consistent quality, ability to create complex shapes and high aspect ratios, and rapid digital prototyping to accelerate development for sensor packaging and new microelectronics designs.
Application Scenarios
RF & Microwave / High-Frequency Electronics
Essential for microwave components (filters, couplers, antennas) in 5G/6G, radar, and satellite comms. Precision vias ensure controlled impedance and low-loss grounding.
Advanced Semiconductor & Multi-Chip Packaging
Used in 2.5D/3D integrated circuit packaging, SiP, and FOWLP. Provides high-density vertical interconnects in ceramic interposers.
Power Electronics & Modules
Serves as an insulating substrate with thermal vias for IGBT, SiC, and GaN power devices, managing heat from active dies.
Hybrid Microelectronics & MEMS
A foundational platform for thick film hybrid microcircuits, enabling interconnections and cavities for mounting CERAMIC CHIPS or MEMS devices in aerospace and medical electronics.
Design & Integration Guidance
- Define Requirements: Specify electrical, thermal, and mechanical needs. Provide initial CAD files with via locations/diameters.
- Design Review & Consultation: Our engineers review for manufacturability, advising on via size, pitch, and aspect ratios.
- Prototyping & Verification: We produce prototypes for performance validation (e.g., RF S-parameters, thermal tests).
- Metallization Selection: Choose conductive paste filling for cost-effective thick film printed circuits or electroplating for high-frequency/high-current needs.
- Assembly & Testing: Proceed with component mounting and standard electrical/reliability testing.
Customization & OEM/ODM Services
We offer comprehensive co-engineering to tailor substrates to your specific architecture.
- Full Custom Designs: Unique sizes, thicknesses, and complex via patterns.
- Advanced Geometries: Blind/buried vias, slots, and tapered holes.
- Integrated Features: Laser-cut cavities and trenches for complex CERAMIC COMPONENTS.
- Complete Metallization: In-house thick-film printing and plating services.
- Rapid Prototyping: Fast-turnaround samples for design validation.
Manufacturing Process & Quality Assurance
Our controlled process ensures precision and reliability.
- High-purity Al₂O₃ blank preparation via tape casting/dry pressing and sintering.
- Computer-controlled precision laser drilling with real-time monitoring.
- Specialized post-drill cleaning to remove debris for optimal metallization adhesion.
- Optional in-house metallization and patterning (screen printing, plating).
- Final singulation via laser cutting/dicing and 100% inspection (AOI, dimensional verification).
Certifications & Compliance
Our commitment to quality meets global standards.
- Quality Management: ISO 9001:2015 Certified.
- Environmental Compliance: RoHS and REACH compliant materials.
- Process Control: Statistical Process Control (SPC) for batch consistency.
- Full Traceability: Maintained for every production lot.
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