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| Categories | Ceramic Plate |
|---|---|
| Place of Origin: | Jiangsu, China |
| Brand Name: | LJ Ceramic |
| Certification: | ISO9001:2008/ROHS |
| MOQ: | 2 piece |
| Price: | Negotiation |
| Packaging Details: | Use the export carton which is secure against breakage on the MDF pallet. |
| Delivery Time: | To be negotiated |
| Payment Terms: | L/C ，T/T |
| Model Number: | Alumina Ceramic Plate |
Alumina Ceramic Plate insulation board ceramic substrate
Alumina is the most commonly used technical ceramic material.
Thanks to its very good electrical insulation, dielectric strength,
and high-temperature resistance up to 1500 °C, Alumina Ceramic is
ideal for electrical applications and high-temperature
applications.
Alumina ceramics feature:
Aluminum oxide ceramic plates have a wide variety of applications:
• Alumina plates are hard enough to become armor for personnel or
vehicles.
• The corrosion resistivity of alumina plates makes them a great
material for the chemical industry.
• Used as a material for industrial furnaces due to its ability to
maintain its hardness at high temperatures.
• Used for making parts for CVD thin films, ion implants,
photolithography, and semiconductor parts.
• In traditional industries, alumina ceramics are ideal for
products such as injector tubes, gas nozzles, and insulators.
• Network resistor,
• Chip resistor,
• Chip resistor array
• Thick-film hybrid IC
• Thin-film hybrid IC
• General isolator
Product Parameter
| Alumina Ceramic Substrate Material Property | ||||
| Item | Unit | 96% Al2O3 | 99.6% Al2O3 | |
| Mechanical Properties | ||||
| Color | / | / | White | Ivory |
| Density | Drainage Method | g/cm3 | ≥3.70 | ≥3.95 |
| Light Reflectivity | 400nm/1mm | % | 94 | 83 |
| Flexural Strength | Three Point Bending | MPa | >350 | >500 |
| Fracture Toughness | Indentation Method | MPa·m1/2 | 3 | 3 |
| Vickers Hardness | Load 4.9N | GPa | 14 | 16 |
| Young's Modulus | Stretching Method | GPa | 340 | 300 |
| Water Absorption | % | 0 | 0 | |
| Camber | / | Length ‰ | T≤0.3: ≤5‰, Others: ≤3‰ | ≤3‰ |
| Thermal Properties | ||||
| Max. Service Temperature (non-loading) | / | ºC | 1200 | 1400 |
| CTE (coefficient of thermal expansion) | 200-800ºC | 1×10-6/ºC | 7.8 | 7.9 |
| Thermal Conductivity | 25ºC | W/m·K | >24 | >29 |
| Thermal Shock Resistance | 800ºC | ≥10 Times | No Crack | No Crack |
| Specific Heat | 25ºC | J/kg·k | 750 | 780 |
| Electrical Properties | ||||
| Dielectric Constant | 25ºC, 1MHz | / | 9.4 | 9.8 |
| Dielectric Loss Angle | 25ºC, 1MHz | ×10^-4 | ≤3 | ≤2 |
| Volume Resistivity | 25ºC | Ω·cm | ≥10^14 | ≥10^14 |
| Dielectric Strength | DC | KV/mm | ≥15 | ≥15 |
| Alumina Ceramic Substrate Production Specifications | |||||||
| 99.6% Al2O3 | |||||||
| Thickness (mm) | Maximum Size (mm) | Shape | Molding Technique | ||||
| As Fired | Lapped | Polished | Rectangular | Square | Round | ||
| 0.1-0.2 | 50.8 | 50.8 | √ | √ | Tape Casting | ||
| 0.25 | 114.3 | 114.3 | √ | Tape Casting | |||
| 0.38 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| 0.5 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| 0.635 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| Other special thicknesses within the thickness range of 0.1-0.635mm can be achieved by lapping. | |||||||
| 96% Al2O3 | |||||||
| Thickness (mm) | Maximum Size (mm) | Shape | Molding Technique | ||||
| As Fired | Lapped | Polished | Rectangular | Square | Round | ||
| 0.25 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| 0.3 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| 0.38 | 140×190 | √ | Tape Casting | ||||
| 0.5 | 140×190 | √ | Tape Casting | ||||
| 0.635 | 140×190 | √ | Tape Casting | ||||
| 0.76 | 130×140 | √ | Tape Casting | ||||
| 0.8 | 130×140 | √ | Tape Casting | ||||
| 0.89 | 130×140 | √ | Tape Casting | ||||
| 1 | 280×240 | √ | Tape Casting | ||||
| 1.5 | 165×210 | √ | Tape Casting | ||||
| 2 | 500×500 | √ | Tape Casting | ||||
| Other special thicknesses within the thickness range of 0.1-2.0mm can be achieved by lapping. | |||||||
| Alumina Ceramic Substrate Product Tolerance | ||||
| Item | Substrate Thickness (mm) | Standard Tolerance (mm) | Best Tolerance (mm) | Laser Cutting Tolerance (mm) |
| Length And Width Tolerance | / | ±2 | ±0.15 | |
| Thickness Tolerance | T<0.3 | ±0.03 | ±0.01 | |
| 0.30-1.0 | ±0.05 | ±0.01 | ||
| T>1.0 | ±10% | ±0.01 | ||
| Alumina Ceramic Substrate Surface roughness | |||
| Material | Surface Roughness (μm) | ||
| As Fired | Lapped | Polished | |
| 96% Al2O3 | Ra 0.2-0.75 | Ra 0.3-0.7 | Ra ≤0.05 |
| 99.6% Al2O3 | Ra 0.05-0.15 | Ra 0.1-0.5 | Ra ≤0.05 |
| Inspection Of Bare Ceramic Substrates | ||
| Test ltems | Inspection Tool | Inspection Standard |
| Appearance | VisualInspection,Microscope | In accordance with the drawing |
| Length And Width | Vernier Caliper | |
| Thickness | Thickness Gauge,Micrometer | |
| Camber | Digimatic lndicater | |
| Surface Roughness | Surface Roughness Meter | |
Production Flow Chart
FAQ
Q1:Why us?
Q2:Are you a trading company or a manufacturer?
A: We are a manufaturer.
Q3:Can you provide the free samples?
A3: Yes,we can offer free sample if we have it in stock,but the
courier fee is to be collected.
Q4: Do you accept customized production based our specification?
A4: Yes,we offer OEM and ODM service. Just send us your drawing if
you have it. If you don’t have a drawing, just tell us your idea,
we will work out the drawing for you.
Q5: What's the delivery time?
A5: 7 working days for standard products 30 days for customized
products.
Q6: What is the MOQ?
A6: No limit to the quantity. We can offer the best proposal and
solutions according to your condition.
Q7: What is the payment terms you accept?
A7: T/T,LC,Western Union,moneygram are acceptable.
Q8: How to deal with the faulty?
A8: Firstly, Our product are produced in strict quality control
system and the defective rate will be less than 2%.
If there are problems with the product, we will provide free
replacement.
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