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Silicon Nitride (Si3N4) substrates
€93.50
Silicon Nitride (Si3N4) combines the best electrical, thermal, and mechanical properties of any ceramic material. It is the best solution for applications where other ceramic materials prove to be too weak to handle mechanical stress or thermal shocks.
We have 100x100x1mm Silicon nitride substrates in stock, ready to ship. If you need a different size or thickness or if you are looking for a high volume quote, simply contact us for a quote.
Description
Silicon Nitride substrates (Si3N4) have the best mix of electrical, thermal, and mechanical properties of any ceramic material. It is the choice of material for applications where other ceramics prove to be too weak to handle mechanical stress or thermal shocks but you still need to handle high current, conduct heat or withstand chemical hazards. Examples are battery management systems for electrical drivetrains, high-pressure environments like deep-sea sensors, industrial sensors & antenna’s, portable lighting & scanning solutions, …
Furthermore, the high absorption rate color combined with high thermal conductivity make it suitable for certain optical applications like photonics where reflections need to be managed while conducting an elevated watt per mm2.
We currently store 100x100x1mm Silicon nitride substrates which are ready to ship immediately. However, if you need a different size or a different thickness, we can still help. Also if you are looking for a high volume quote, simply contact us for a quote.
Main advantages Silicon Nitride
- high strength over a wide temperature range
- High fracture toughness / flexural strength
- Outstanding wear resistance, both impingement as well as frictional modes
- Good thermal shock resistance (low expansion rate + high thermal conductivity)
- Strong chemical resistance
- high absorption
Silicon Nitride (Si3N4) material properties:
| Property | Items | Unit | Si3N4 |
|---|---|---|---|
| Physical | Color | - | Black |
| Electrical | Dielectric Constant (10GHz) | - | 8-9 |
| Dielectric Loss | *10^-4 | 25 | |
| Dielectric strength | MV/m or KV/mm | >14 | |
| Insulation/Volume resistance | Ω·cm | >10^10 @ 25°C | |
| Mechanical | Density after Sintering (Bulk density) | g/cm3 | ~3.3 |
| Flexural Strength (3 point) | Mpa | ~800 | |
| Compressive Strenght | Mpa | ~2500 | |
| Poisson’s Ratio | - | 0.27 | |
| Young’s modulus | GPA | 200-350 | |
| Thermal | Coefficient of Thermal Expansion (CTE) | ppm/°C | ~3.3 |
| Max. Temperature | °C | <1150 | |
| Thermal Conductivity (25°C) | W/m‧K | 30-32 |
If your are not sure what conductor and surface finish you should use, you can always use this handy tool: What stackup to use for your signal layers for ceramic pcb.
Additional information
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Size | 100 x 100mm / 3.9" x 3.9" |
| Thickness | 1mm / 39" |
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