Factory making Large Machining - Tungsten Copper WCu Heat Sink – Fotma
Factory making Large Machining - Tungsten Copper WCu Heat Sink – Fotma Detail:
Description
Tungsten copper electronic packaging material has both the low expansion properties of tungsten and the high thermal conductivity properties of copper. What is particularly valuable is that its thermal expansion coefficient and thermal conductivity can be designed by adjusting the composition of the material brought great convenience.
FOTMA uses high-purity and high-quality raw materials, and obtains WCu electronic packaging materials and heat sink materials with excellent performance after pressing, high-temperature sintering and infiltration.
Advantages of Tungsten Copper (WCu) Electronic Packaging Materials
1. The tungsten copper electronic packaging material has an adjustable thermal expansion coefficient, which can be matched with different substrates (such as: stainless steel, valve alloy, silicon, gallium arsenide, gallium nitride, aluminum oxide, etc.);
2. No sintering activation elements are added to maintain good thermal conductivity;
3. Low porosity and good air tightness;
4. Good size control, surface finish and flatness.
5. Provide sheet, formed parts, also can meet the needs of electroplating.
Copper Tungsten Heat Sink Properties
| Material Grade | Tungsten Content Wt% | Density g/cm3 | Thermal Expansion ×10-6 CTE（20℃） | Thermal Conductivity W/（M·K） |
| 90WCu | 90±2% | 17.0 | 6.5 | 180 (25℃) /176 (100℃) |
| 85WCu | 85±2% | 16.4 | 7.2 | 190 (25℃)/ 183 (100℃) |
| 80WCu | 80±2% | 15.65 | 8.3 | 200 (25℃) / 197 (100℃) |
| 75WCu | 75±2% | 14.9 | 9.0 | 230 (25℃) / 220 (100℃) |
| 50WCu | 50±2% | 12.2 | 12.5 | 340 (25℃) / 310 (100℃) |
Application of Tungsten Copper Heat Sinks
Materials suitable for packaging with high-power devices, such as substrates, lower electrodes, etc.; high-performance lead frames; thermal control boards and radiators for military and civilian thermal control devices.
Product detail pictures:
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All we do is usually connected with our tenet " Consumer initial, Rely on 1st, devoting around the food stuff packaging and environmental safety for Factory making Large Machining - Tungsten Copper WCu Heat Sink – Fotma , The product will supply to all over the world, such as: Tunisia, Singapore, Porto, Satisfaction and good credit to every customer is our priority. We focus on every detail of order processing for customers till they have received safe and sound products with good logistics service and economical cost. Depending on this, our products are sold very well in the countries in Africa, the Mid-East and Southeast Asia.
By Octavia from Oman - 2018.10.31 10:02
The goods we received and the sample sales staff display to us have the same quality, it is really a creditable manufacturer.
By Evelyn from Niger - 2017.08.18 11:04