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Puwei's 99.6% Alumina Ceramic Substrate represents the gold standard in precision electronic substrates for chip resistor manufacturing. Engineered with ultra-high purity alumina content, these substrates deliver exceptional electrical insulation, thermal stability, and mechanical strength required for advanced Electronic Packaging and Microelectronics Packaging applications.
With volume resistivity exceeding 10¹⁴ Ω·cm and a stable dielectric constant of 9-10, our alumina ceramic substrates provide the ideal foundation for precision chip resistors in demanding electronic environments.
High-purity 99.6% Alumina Ceramic Substrate for precision chip resistors
Advanced alumina substrates for electronic component manufacturing
Volume resistivity exceeding 10¹⁴ Ω·cm ensures complete current isolation between circuit elements, preventing leakage and maintaining signal integrity in sensitive electronic applications.
Consistent dielectric constant of 9-10 provides reliable capacitance characteristics, essential for precision Thick Film Resistor performance and signal stability.
99.6% alumina content with controlled impurities ensures consistent electrical and thermal properties, eliminating performance variations in high-volume production.
Excellent thermal conductivity (20-30 W/m·K) efficiently dissipates heat from Power Devices, extending component lifespan and reliability.
Optimized surface finish enables accurate resistor patterning and reliable performance in miniaturized electronic components.
High flexural strength (300-400 MPa) and hardness ensure dimensional stability and resistance to processing stresses during manufacturing.
Ideal substrate for manufacturing high-precision chip resistors with tight tolerance requirements, from low-resistance (few ohms) to high-resistance (mega-ohms) applications.
Essential for RF circuits and wireless communication devices where stable dielectric properties minimize signal loss and maintain impedance characteristics.
Supports the trend toward smaller components in mobile phones, tablets, and portable electronics through excellent mechanical strength in compact form factors.
Reliable performance in automotive control systems, sensor interfaces, and power management circuits requiring stable electrical characteristics under varying conditions.
Durable substrate solution for industrial automation, measurement equipment, and control systems where long-term reliability is critical.
Consistent electrical properties and excellent insulation ensure stable resistor performance and reduced failure rates
Precision surface quality and dimensional stability enable higher production yields and reduced scrap rates
Superior thermal management properties prevent overheating and extend the operational life of electronic components
Supports miniaturization trends and enables development of smaller, more efficient electronic devices
High reliability and manufacturing consistency reduce total cost of ownership through fewer field failures and warranty claims
Puwei Ceramic maintains the highest quality standards with comprehensive certification and rigorous quality control processes for electronic-grade ceramic substrates.
High-purity alumina powder (99.6% Al₂O₃) is carefully selected and tested for electronic-grade applications
Advanced pressing techniques create substrate preforms with accurate dimensions and uniform density distribution
Controlled atmosphere sintering at elevated temperatures achieves optimal density and develops required electrical properties
CNC grinding and lapping operations establish exact dimensional accuracy and surface finish specifications
Comprehensive testing including dimensional inspection, electrical property verification, and surface quality assessment
Rigorous final quality control ensures compliance with electronic industry standards and customer specifications
99.6% alumina provides superior electrical insulation, better thermal conductivity, and more consistent dielectric properties compared to lower purity grades, ensuring reliable performance in precision electronic applications.
The stable dielectric constant of 9-10 ensures consistent capacitance characteristics between resistor elements and the substrate, which is critical for maintaining precise resistance values and signal integrity in high-frequency applications.
Yes, our alumina ceramic substrates maintain dimensional stability and electrical properties at processing temperatures up to 1600°C, making them suitable for various resistor manufacturing processes.
We offer various surface finishes from standard lapped surfaces to precision polished finishes, optimized for different resistor printing technologies including thick film and thin film processes.
Yes, we provide comprehensive material certifications including composition analysis, electrical property testing, and dimensional reports to ensure compliance with electronic industry standards.
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Main Product:
Alumina Ceramic Substrates,
Aluminum Nitride Substrates,
Metallized Ceramics,
AlN Ceramics Disc,
DPC Substrate,
DBC Ceramic Substrate
