Koartan has recently developed a complete system of thick film pastes for use on AlN (Aluminium Nitride). The 796X range of pastes are blendable across the whole series and are completely lead-free. With resistivities from 100 mOhms / square to 3 Ohms/square, these materials offer tight TCR controls and excellent power handling capabilities.
For heaters and other applications where a tight TCR is not required, Koartan offers the 798X series of pastes. With similar resistivities to the 796X series, the 798X series has a TCR of 300ppm +/- 100ppm, suitable for more cost-sensitive products.
Koartan also offers conductive pastes specifically engineered for applications requiring high adhesion to AlN. These materials also come in a range of different resistivities - the 6292 Silver-Palladium paste has a resistivity of 18 - 22 mOhms / square, while the 6122 Silver paste has a resistivity of 3 - 4 mOhms / square.
Finally, to protect the fired circuitry of the sensitive AlN-compatible pastes, Koartan has developed a special overglaze material, 5662. This paste fires at 600 - 650C and prevents the oxidisation of Palladium that normally occurs when firing higher temperature glazes, thereby significantly reducing the resistivity shift from as much as 20% or more, to +/- 1%.
Product Range Overview:
| AlN Product Range Overview | PDF |
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| 4906 | 600C firing Gold Conductor for AlN | Datasheet |
| 7961 | Series Pd-Ag Power Resistors for AlN | Datasheet |
7981 |
Series Pd-Ag Power Resistors for AlN | |
6292 |
Silver-Palladium Conductor for AlN | |
| 6122 | Silver Conductor for AlN | |
| 5662 | Overglaze for AlN | |
| 6296 | SILPALL FLASH - Solder Promoting Paste for AlN | |
Further
Information On Koartan Thickfilm AlN Materials: |
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| Applications | Microelectronic
Devices, Microwave Devices, Heating Elements, Printable Resistors
& Thermistors |
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| Industry Segments | Microelectronic
/ Hybrid Assembly, Fiber Optics / Photonic Assembly, Microwave
Electronics, Automotive Electronics, Wireless Telecommunications,
Data Processing, Instrumentation, Military, Consumer Electronics,
Industrial Electronics |
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| Technical Advice | ||
| Koartan Website | ||
| Region | Available
from Inseto in the United Kingdom, Ireland & Scandinavia
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