Alumina-Zirconia Substrates(NA-Z)
NIKKO’s Alumina-Zirconia substrates offer high strength and high toughness. Their excellent electrical and thermal properties are ideal for applications that require high reliability, such as automotive, industrial machinery, and IGBT power modules.
Features
NIKKO’s high-strength, flexible Alumina-Zirconia substrates show a bending strength of over 1.5x compared to the standard Alumina substrate. Thicknesses as thin as 150um are offered that can reduce the thermal resistance in the thickness direction. Substrates have a high density, fine structure with excellent flatness.
Material Characteristics
| ITEM | UNIT | TEST CONDITIONS | 96% ALUMINA | HIGH STRENGTH | ALUMINA -ZIRCONIA | |
|---|---|---|---|---|---|---|
| NA-96 | NA-96F1 | NA-Z | ||||
| MATERIAL | ― | ― | 96%Al2O3 | 96%Al2O3 | Al2O3-ZrO2 | |
| COLOR | ― | ― | WHITE | WHITE | WHITE | |
| DENSITY | g/cm3 | ― | 3.7 | 3.7 | 4.1 | |
| WATER ABSORPTION | % | ― | 0 | 0 | 0 | |
| MECHANICAL PROPERTIES | 3 POINT BENDING STRENGTH | MPa | ― | 400 | 450 | 600 |
| THERMAL PROPERTIES | THERMAL EXPANSION COEFFICIENT | 10-6/℃ | RT～400℃ | 6.8 | 6.8 | 7 |
| RT～800℃ | 7.8 | 7.8 | 8.1 | |||
| THERMAL CONDUCTIVITY | W/(m・K) | 20℃ | 23 | 23 | 21 | |
| ELECTRICAL PROPERTIES | DIELECTRIC CONSTANT | ― | 1MHz | 9.2 | 9.3 | 11.3 |
| LOSS TANGENT | 10-4 | 1MHz | 10 | 10 | 12 | |
| ELECTRICAL RESISTIVITY | Ω・cm | 25℃ | >1014 | 5×1015 | >1014 | |
| 300℃ | 1012 | 2×1012 | 1011 | |||
| 500℃ | 1010 | 2×109 | 109 | |||
| DIELECTRIC STRENGTH | kV/mm | ― | >20 | >20 | >20 | |
Design Guidelines
| ITEM | UNIT | STANDARD | CUSTOM |
|---|---|---|---|
| DEMENSIONS | mm | 190×140 | ～150×300 |
| THICKNESS | mm | 0.25, 0.32 | 0.15, 0.25, 0.32 |
Catalog Download
Product Use Cases
- Laser processed substrates
- Polished substrates
- Thick film circuit substrates
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