The Molybdenum-Copper Heat Sinks
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- Category: Molybdenum knowledge
- Published on 06 March 2013
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Molybdenum-Copper Heat Sinks are composites of molybdenum and copper. Similar to W-Cu, CTE of Mo-Cu can also be tailored by adjusting the content of molybdenum. Mo-Cu is much lighter than W-Cu so that it is suitable for aeronautic and astronautic applications.They are widely used in applications such as optoelectronics packages, Microwave Packages, C Packages, Laser Submounts, etc.
1、Advantages:
◦High thermal conductivity since no sintering additives have been used
◦Excellent hermeticity
◦Relatively small density
◦Stampable sheets available (Mo content no more than 75 wt%)
◦Semi-finished or finished (Ni/Au plated) parts available.
2、Technical Data:
| Type | Molybdenum Content (wt%) | Density (g/cm3) | CTE (ppm/K) | Thermal Conductivity (W/m.K) |
| Mo70cu | 70±1 | 9.8 | 9.1 | 170 - 200 |
| Mo60cu | 60±1 | 9.66 | 10.3 | 210 - 250 |
| Mo50cu | 50±1 | 9.54 | 11.5 | 230 - 270 |
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