| 96% Alumina | 99.7% Alumina | ZTA (Zirconia-Toughened Alumina) |
| Aluminum Nitride AlN 170 W |
Zirconia | Silicon Nitride Si3N4 |
| Black Alumina |
Standard-Size 96% Alumina Thin Substrates
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These are thin alumina ceramic substrates manufactured by tape casting.
| Size | Thickness |
| □60mm | 0.38t |
| 0.635t | |
| 2.0t | |
| □100mm | 0.17t |
| □114.3mm | 0.25t |
| 0.38t | |
| 1.0t | |
| □120.65mm | 0.635t |
| 190.5×139.7mm | 0.38t |
| 0.5t | |
| 0.635t | |
| 0.76t | |
| 1.0t |
We can accommodate orders starting from small quantities. If you require a size smaller than the standard dimensions, we can cut the substrates to your specified size.
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Related Pages Case Study: 96% Alumina Substrates Available in Small Quantities |
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Standard-Size High-Purity 99.7% and 99.9% Alumina Thin Substrates
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High-Purity Alumina Ceramic Thin Substrates Manufactured by Press Forming
- Size: □50 mm, □100 mm, □150 mm
- Thickness: 0.3t (up to □100 mm), 0.5t, 0.635t, and 1.0t
If you require another thickness, please enter the details in the Additional Information field. - Quantity: Available from small quantities
- Materials: N-99, N-999, N-999S
- Surface Roughness: The standard finish is ground. Mirror polishing is also available; please specify this in the Additional Information field.
High-Purity Alumina Ceramic Substrates Manufactured by Tape Casting
- Size: □120
- Thickness: 0.25t
- Material: N-99.6
- Surface Roughness: The standard finish is ground. Mirror polishing is also available; please specify this in the Additional Information field.
We can accommodate small-quantity orders. If you require a size smaller than the standard dimensions, we can cut the substrates to your specified size.
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Related Pages Case Study: “High-Purity Alumina 0.3t and 0.07t Substrates: N-99TP Thin 99.8% Alumina” |
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ZTA (Zirconia-Toughened Alumina)
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These are thin ZTA (zirconia-toughened alumina) substrates manufactured by tape casting.
Size
- □190 × 138 × 0.32t — Lot of 1,000 pieces
- □120 × 112 × 0.36t — Lot of 100 pieces
If you require a size smaller than the standard dimensions, we can cut the substrates to your specified size.
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Related Pages Materials List: “ZTA (Zirconia-Toughened Alumina)” |
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Standard-Size AlN 170 W Aluminum Nitride Thin Substrates
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These are AlN 170 W aluminum nitride ceramic thin substrates manufactured by tape casting.
| Size | Thickness |
| □50.8mm | 0.127t |
| 0.254t | |
| □114.3mm | 0.38t |
| 0.5t | |
| 0.635t | |
| 1.0t |
- Thermal Conductivity: 170 W
- Quantity: Available from small quantities
We can accommodate small-quantity orders. If you require a size smaller than the standard dimensions, we can cut the substrates to your specified size.
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Standard-Size Thin Zirconia Substrates
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These are thin zirconia ceramic substrates manufactured by tape casting.
| Size | Thickness |
| □50mm | 0.6t |
| □50mm | 1.0t |
| □100mm | 1.0t |
- Quantity: Available from small quantities
- Material: Zirconia (3Y)
- Surface Roughness: Ra < 0.6
We can accommodate small-quantity orders.
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Related Pages Materials List: “Zirconia” |
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Standard-Size Si3N4 Silicon Nitride Thin Substrates
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These are thin silicon nitride ceramic substrates manufactured by tape casting. As power semiconductors become smaller, lighter, and capable of higher output to support the wider adoption of electric vehicles and clean energy, silicon nitride substrates are attracting attention as alternatives to alumina and aluminum substrates.
Features
- High electrical insulation
- High heat dissipation achieved through thin-substrate processing
Size: □75 × 0.32 |
Size: 138 × 190 × 0.32 |
| Size | Thickness |
| □75 | 0.32 ±0.03 |
| 138×190 | 0.20 ±0.03 |
| 138×190 | 0.25 ±0.03 |
| 138×190 | 0.32 ±0.03 |
| 138×190 | 1.00 ±0.03 |
| □100 | 0.25 +0/-0.01 |
- Surface Roughness: Ra ≤ 0.7
- Thermal Conductivity (W/m·K): ≥80
- The dimensions can be modified by cutting.
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The □75 × 0.32t substrate did not break when bent by hand, as shown in the photo.
Properties
| Material Name | Silicon Nitride | ||
| Nishimura No. | N-SN7 | ||
| Properties | Si3N4 | ||
| Bulk Density | g/cm3 JIS R1634 |
3.17 | |
| Water Absorption | % JIS R1634 |
0 | |
| Mechanical Properties |
Vickers Hardness | GPa JIS R1610 |
13 |
| Flexural Strength | MPa JIS R1601 |
700 | |
| Compressive Strength | MPa JIS R1608 |
- | |
| Young’s Modulus | GPa JIS R1602 |
310 | |
| Tensile Strength | MPa JIS R 1606 |
- | |
| Fracture Toughness | MPa・m1/2 JIS R1607 |
6 | |
| Electrical Properties |
Volume Resistivity | Ω・cm JIS C2141 |
>1014 |
| Relative Permittivity (1 MHz) | (1MHz) JIS C2141 |
7.8 | |
| Dielectric Loss Tangent (1 MHz) | 10⁻⁴(1MHz) JIS C2141 |
4 | |
| Dielectric Strength | kV/mm JIS C2141 |
20 | |
| Te Value | ℃ | - | |
| Thermal Properties |
Coefficient of Thermal Expansion | 10-6/℃ JIS R1608 |
2.7(RT-400℃) |
| Thermal Conductivity | W/m・K JIS R1611 |
80 | |
| Main Features | High Thermal Conductivity | ||
| Main Applications | — | ||
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Related Pages Materials List: Si3N4 Silicon Nitride Ceramics |
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Standard-Size Black Alumina Thin Substrates (Tape-Cast)
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These are thin black alumina ceramic substrates manufactured by tape casting.
- Size: □114 × 0.635t and □114 × 1.0t
- Quantity: From 5 pieces











