Factory directly supply Metal Machining Service - Tungsten Copper WCu Heat Sink – Fotma

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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.

Tungsten Copper WCu Heat Sink

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^-6CTE（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.

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To consistently enhance the management method by virtue of the rule of "sincerely, fantastic religion and top quality are the base of business development", we extensively absorb the essence of associated goods internationally, and constantly acquire new merchandise to satisfy the needs of shoppers for Factory directly supply Metal Machining Service - Tungsten Copper WCu Heat Sink – Fotma , The product will supply to all over the world, such as: Brasilia, Muscat, Brunei, With the first-class products, excellent service, fast delivery and the best price, we have won highly praise foreign customers'. Our products have been exported to Africa, the Middle East, Southeast Asia and other regions.

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