99.6% Alumina Ceramic Substrate For Making Chip Resistors

99.6% Alumina Ceramic Substrate for Chip Resistor Manufacturing 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. Technical Specifications Electrical Properties Volume Resistivity: >10¹⁴ Ω·cm Dielectric Constant: 9-10 @ 1 MHz Dielectric Strength: 15-25 kV/mm Insulation Resistance: Excellent electrical isolation properties Material Composition Alumina Content: 99.6% Al₂O₃ Impurity Control: Strictly controlled silica (SiO₂), iron oxide (Fe₂O₃…