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China, Chinese 0.3mm Aluminum Oxide PCB Sheet 96 Al2O3 Alumina Ceramic Substrate1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Industrial Ceramic ProductsCeramic SubstrateAlumina Ceramic SubstrateAlumina Substrate
SHENZHEN JINGHUI INDUSTRY LIMITED
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Product Description 0.3mm Aluminum Oxide PCB Sheet 96 Al2O3 Alumina Ceramic SubstrateProduct IntroductionThe Differences Between Ceramic Substrates and Traditional PCB Sheets1. Different materialsMost of the ceramic bases used in ceramic substrates are alumina, aluminum nitride or silicon nitride ceramics, which are inorganic materials. Traditional PCB sheets use FR4 glass fiber boards, which are organic materials. 2. Different production process, cost and lead timeThe ceramic substrate is fragile and cannot be pressed together. And because of its high hardness and density, the production process is much more difficult than the traditional PCB sheet, and the requirements for the technology are relatively high. In addition, the material cost and production cost of the ceramic substrate are relatively high, and the lead time is also longer. Traditional PCB sheets can be pressed in multiple layers, and the processing technology is mature.3. Different applicationsCeramic substrates are used in industries that require high heat dissipation, such as high-power LED lighting, high-power modules, high-frequency communications, track power supplies, etc. Traditional PCB sheets are more widely used, and the demand is relatively large. Material PropertiesAlumina Ceramic SubstrateItemUnit96% Al2O3Mechanical PropertiesColor//WhiteDensityDrainage Methodg/cm3≥3.70Light Reflectivity400nm/1mm%94Flexural StrengthThree Point BendingMPa>350Fracture ToughnessIndentation MethodMPa·m1/23.0Vickers HardnessLoad 4.9NGPa14Young's ModulusStretching MethodGPa340Water Absorption %0Camber/Length‰T≤0.3: ≤5‰, Others: ≤3‰Thermal PropertiesMax. Service Temperature (Non-loading)/oC1200CTE (Coefficient of Thermal Expansion)20-800oC1×10-6/oC7.8Thermal Conductivity25oCW/m·K>24Thermal Shock Resistance800oC≥10 TimesNo CrackSpecific Heat25oCJ/kg·k750Electrical PropertiesDielectric Constant25oC, 1MHz /9.4Dielectric Loss Angle25oC, 1MHz ×10-4≤3Volume Resistivity25oCΩ·cm≥1014Dielectric StrengthDCKV/mm≥15Manufacturing Capacity1. Product SpecificationWe can make various specifications. The table below shows our standard sizes. Alumina Ceramic Substrate96% 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 96% 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 3. Surface Roughness 96% Alumina Ceramic SubstrateSurface Roughness (μm)As FiredLappedPolishedRa 0.2-0.75Ra 0.3-0.7Ra ≤0.054. Laser Processing(1) Hole Size Alumina Ceramic SubstrateHole Diameter (mm)Standard Tolerance (mm)φ≤0.50.08φ>0.50.2(2) Laser Scribing Alumina Ceramic SubstrateSubstrate 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.FAQQ1: What is the maximum service temperature of the alumina ceramic substrates?Alumina ceramic substrates can withstand high temperature of 1200-1400 oC.Q2: Can you make alumina ceramic substrates in different colors?Yes, we can make alumina ceramic substrates in optional colors such as white, ivory, pink, and black.Q3: What is the maximum thermal conductivity of the alumina ceramic substrates?Although Al2O3 ceramics is currently the most mature ceramic substrate material, its thermal conductivity is relatively low (99% Al2O3: more than 30W/m·K). For this reason alumina ceramic substrates is limited in the application of high frequency, high power and very large-scale integration (VLSI).Q4: Do you provide free samples?We offer free samples in standard sizes, and only charge for shipping. If customization is required, we only collect sample fee for MOQ. If your question is not listed here, please contact us for more information.
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