Alumina Ceramic Substrates
Aluminum substrate for thick-film printed circuits manufactured using a proprietary production system
This product uses high-purity aluminum and is manufactured under strict quality control, providing consistent quality and excellent performance.
In today’s rapidly evolving electronics industry, the development of tiny chips no larger than a fingertip greatly advances the information society. Chip resistors are essential basic components in electronic circuits.
Our ceramic substrates for chip resistors use high-purity alumina (96%), which performs excellently in electrical and thermal environments. Precision processing technology provides outstanding dimensional accuracy and excellent dicing performance.
Alumina Ceramic Substrates
Environmentally Friendly Alumina Green Sheet
After Forming
After Sintering
Finished Product
Advantages
- Line Spacing: 0.1 mm
- Excellent surface condition (fine particles result in fewer pores, good smoothness, and high flatness)
- Excellent dimensional accuracy (very few defects in outside dimensions, thickness, etc.)
- Low Warpage
- High Thermal Conductivity
- High Mechanical Strength
- Excellent Dicing Performance
- Excellent Chemical Resistance
Applications
- Chip Resistors
- Chip Resistor Arrays (Multi-hole and Slotted Substrates)
- Thin-Film Hybrid ICs
- Insulating Substrates
- Glazed Substrates
Ceramic Substrate Product Table
| Standard Products | ||||
|---|---|---|---|---|
| Specifications | Unit Size （mm） | Substrate Dimensions （mm） | Thickness (mm) | Remarks |
| 1005 | 0.95×0.48 | 60.0×49.5 | ||
| 1608 | 1.5×0.8 | 70.0×60.0 | ||
| 2125 | 1.95×1.2 | 60.45×49.5 | ||
| 3216 | 3.0×1.5 | 70.0×60.0 | ||
| 0603 | 0.58×0.28 | 60.0×49.5 | With Holes | |
| 1095 1005×2 | 1.0×0.95 | 60.0×49.5 | With Holes | |
| 2092 1005×4 | 2.0×0.95 | 60.0×49.5 | With Holes | |
| 1032 1608×4 | 3.2×1.5 | 60.0×49.5 | With Holes | |
Standard Properties of Ceramic Substrates
| Material Name | Ceramics | Unit | |
|---|---|---|---|
| Grade | KA-6 | KA-9 | |
| Purity | Al2O3 96% | Al2O3 99% | % |
| Water Absorption | 0 | 0 | % |
| Specific Gravity | 3.75 | 3.8 | g/cm³ |
| Surface Roughness | 3 | 3 | μRmax |
| Hardness (HV) | 14.7 | 16.7 | GPa |
| Coefficient of Linear Expansion (40–800°C) | 7.8 | 7.9 | 10-6/℃ |
| Thermal Conductivity | 25 | 29 | W/(m·K) |
| Flexural Strength | 294 | 313 | MPa |
| Withstand Voltage | 10 or Higher | 10 or Higher | kV/mm |
| Volume Resistivity | 1014or Higher | 1014or Higher | Ω·cm |
| Relative Permittivity | 10 | 10 | （1MHz） |
| Dielectric Loss Tangent (1 MHz) | 4 | 2 | 10-4 |
| Dielectric Loss | － | － | （1MHz） |