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China, Chinese Thermal Resistant 96% 99.6% Aluminum Oxide Substrate Al2O3 Alumina Ceramic Plate1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Industrial Ceramic ProductsCeramic SubstrateAlumina Ceramic PlateAlumina Plate
SHENZHEN JINGHUI INDUSTRY LIMITED
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Product Description Thermal Resistant 96% 99.6% Aluminum Oxide Substrate Al2O3 Alumina Ceramic PlateProduct DescriptionAlumina ceramic is a commonly used electronic packaging substrate material. Compared with plastic and metal substrates, alumina ceramic plate has the following advantages:1) Low Dielectric Coefficient and Good Frequency PerformaceThe low dielectric constant and dielectric loss of ceramic materials can reduce the signal delay time and increase the transmission speed.2) Good InsulationGenerally speaking, the higher substrate resistance, the better reliability of the package. Ceramic materials are generally covalent bond compounds with better insulation properties.3) Small Coefficient of Thermal Expansion (CTE)Covalent bond compounds generally have high melting point, and the higher the melting point, the smaller the thermal expansion coefficient, so the CTE of ceramic materials is generally small.4) High Thermal ConductivityAlumina ceramic plates are widely used in high-reliability, high-frequency, high-temperature resistance, and strong air-tight product packaging in aviation, aerospace and engineering.Product ParametersFor material properties, please refer to the table below. Alumina Ceramic PlateItemUnit96% 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≥15Manufacturing Capacity1. Product SpecificationWe can make various specifications. The table below shows our standard sizes. Alumina Ceramic Plate99.6% Al2O3Thickness (mm)Maximum Size (mm)ShapeMolding TechniqueAs FiredLappedPolishedRectangularSquareRound0.1-0.2 50.850.8 √√Tape Casting0.25 114.3114.3 √ Tape Casting0.38120114.3114.3 √ Tape Casting0.5120114.3114.3 √ Tape Casting0.635120114.3114.3 √ Tape CastingOther special thicknesses within the thickness range of 0.1-0.635mm can be achieved by lapping.96% Al2O3Thickness (mm)Maximum Size (mm)ShapeMolding TechniqueAs FiredLappedPolishedRectangularSquareRound0.25120114.3114.3 √ Tape Casting0.3120114.3114.3 √ Tape Casting0.38140×190 √ Tape Casting0.5140×190 √ Tape Casting0.635140×190 √ Tape Casting0.76130×140 √ Tape Casting0.8130×140 √ Tape Casting0.89130×140 √ Tape Casting1280×240 √ Tape Casting1.5165×210 √ Tape Casting2500×500 √ Tape CastingOther special thicknesses within the thickness range of 0.1-2.0mm can be achieved by lapping.2. Product Tolerances Alumina Ceramic PlateItemSubstrate 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 3. Surface Roughness Alumina Ceramic PlateMaterialSurface 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 ≤0.054. Laser Processing(1) Hole Size Alumina Ceramic PlateHole Diameter (mm)Standard Tolerance (mm)φ≤0.50.08φ>0.50.2(2) Laser Scribing Alumina Ceramic PlateSubstrate Thickness (mm)the Percentage of Laser Scribe Line Depth to Thickness (%)0.2-0.340%±5%0.3<T≤0.550%±3%0.5<T≤1.043%±3%1.255%±3%1.555%±3%2.055%+10%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.Production ProcessProduct InspectionProduct RecommendationsWe offer bare ceramic substrates in various raw materials, sizes, and shapes. View More
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