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Tungsten-Copper heat sinks

Tungsten-Copper heat sinks
company Sublimation Microelectronics Materials Co., Ltd
Categories Other Copper
Update2011-03-15
Original RegionChina
Tungsten-Copper heat sinks
Tungsten-Copper heat sinks
It is a composite of tungsten and copper. The coefficient of thermal expansion (CTE) of the composite can be disigned by controlling the content of tungsten, matching that of the materials, such as Ceramics (Al2O3, BeO)、Semiconductors (Si)、Metals (Kovar), etc. The products are widely applicated in the fields such as radio frequency、microwave、high power diode packaging and optical communication system.
Features
High thermal conductivity
Excellent hermeticity
Excellent size control, surface finish and flatness
Semi-finished or finished (Ni/Au plated) products available
Production information
Type
Composition
Properties
element
Content wt%
Density
CTE ppm/K
TC,
W/mK
Mass density, g/cm3
Relative density, %T.D
W90Cu
W
Cu
90±1
balance
17.0
≥99
5.6~6.5
180~190
W85Cu
W
Cu
85±1
balance
16.3
≥99
6.3~7.0
190~200
W80Cu
W
Cu
80±1
balance
15.4
≥99
7.6~9.1
200~220

Tungsten-Copper heat sinks on sale

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