IPDB › China Industry › Industrial Equipment & Components
China, Chinese Al2O3 96% 99.6% as Fired Bare Alumina Ceramic Substrate PCB1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Industrial Ceramic ProductsCeramic SubstrateAutomotive Ceramic SubstrateMicro Ceramic Heat Sink
SHENZHEN JINGHUI INDUSTRY LIMITED
Preview:
Product Description Al2O3 96% 99.6% As Fired Bare Alumina Ceramic Substrate PCBFeatures of the Alumina Ceramic Substrate(1) Good insulation performance and high reliability.(2) Low dielectric coefficient and good high frequency performance.(3) Low thermal expansion coefficient (CTE) and high thermal conductivity.(4) Good air tightness, stable chemical properties, and strong protection for electronic systems.ApplicationsProduct ParametersAlumina Ceramic SubstrateItemUnit96% Al2O399.6% Al2O3Mechanical PropertiesColor//WhiteIvoryDensityDrainage Methodg/cm3≥3.70≥3.95Light Reflectivity400nm/1mm%9483Flexural StrengthThree Point BendingMPa>350>500Fracture ToughnessIndentation MethodMPa·m1/23.03.0Vickers HardnessLoad 4.9NGPa1416Young's ModulusStretching MethodGPa340300Water Absorption %00Camber/Length‰T≤0.3: ≤5‰, Others: ≤3‰≤3‰Thermal PropertiesMax. Service Temperature (Non-loading)/oC12001400CTE (Coefficient of Thermal Expansion)20-800oC1×10-6/oC7.87.9Thermal Conductivity25oCW/m·K>24>29Thermal Shock Resistance800oC≥10 TimesNo CrackNo CrackSpecific Heat25oCJ/kg·k750780Electrical PropertiesDielectric Constant25oC, 1MHz /9.49.8Dielectric Loss Angle25oC, 1MHz ×10-4≤3≤2Volume Resistivity25oCΩ·cm≥1014≥1014Dielectric StrengthDCKV/mm≥15≥15Product Tolerances Alumina Ceramic SubstrateItemSubstrate Thickness (mm)Standard Tolerance (mm)Best Tolerance (mm)Laser Cutting Tolerance (mm)Length and Width Tolerance/±2 ±0.15Thickness ToleranceT<0.3±0.03±0.01 0.30-1.0±0.05±0.01 T>1.0±10%±0.01 Surface Roughness Alumina Ceramic SubstrateMaterialSurface Roughness (μm)As FiredLappedPolished96% Al2O3Ra 0.2-0.75Ra 0.3-0.7Ra ≤0.0599.6% Al2O3Ra 0.05-0.15Ra 0.1-0.5Ra ≤0.05FAQQ1: Can the Size be Customized?Yes, most of the alumina ceramic substrates are rectangular, square or round in shapes. Our rectangular shapes for as-fired alumina ceramic substrates are available up to 500mm×500mm. We offer customized products for special requirements.Q2: What is the Maximum ServiceTemperature of the Alumina Ceramic Substrates?Alumina ceramic substrates can withstand high temperature of 1200-1400 oC.Q3: What is the Minimum Thickness of the Alumina Ceramic Substrates?Our standard thickness: 0.25mm, 0.30mm, 0.38mm, 0.50mm, 0.635mm, 0.76mm, 0.80mm, 0.89mm, 1.0mm, 1.5mm and 2.0mm. Minimum thickness to be 0.1mm. Welcome to inquire about customized services.Q4: What is the Depth of the Laser Scribing?The depth of the laser scribing of our ceramic substrate is about 35%-65% of the substrate thickness. The scribing spot can be in different sizes. Generally there are small spot 0.03-0.04mm (Substrate Thickness≤0.5mm ) and large spot 0.08-0.1mm (Substrate Thickness>0.5mm), and the accuracy is ±0.01mm.Q5: Can Alumina Ceramic Substrates be Polished?Yes, lapping and polishing will provide the desired flatness and thickness tolerance, with a surface roughness generally below Ra0.05.Q6: What is the Camber of the Alumina Ceramic Substrates?Our alumina substrates are 100% inspected for camber. The camber is less than 5‰ for 96% alumina with a thickness below 0.3mm. For 96% alumina with other thicknesses and for other purities, the camber is less than 3‰.If your question is not listed here, please contact us for more information.
Purchasing Request
Note: Send your purchase request, and we will screen suppliers or manufacturers for you free of charge...