Zhuzhou Jiabang Refractory Metal Co., Ltd
5 1

Bright Tungsten Copper Heat Spreader , Microelectronic Packaging Tungsten Copper Submount

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Zhuzhou Jiabang Refractory Metal Co., Ltd
[China]

Address
No.5 Building, No.581 Heilong Jiang Road, Li Yu Industrial Park, Tian Yuan District, Zhuzhou, Hunan, Zhuzhou Hunan
Phone
86-0733-28410199
Contact name
Xu

Quick Information

  • Brand Name: JBNR
  • Place of Origin: China
  • Model Number : 50WCu,75WCu,80WCu,85WCu,90WCu

Description

Tungsten Copper Heat Spreader / Submount For Microelectronic Packaging
 
 
Description:
 

W-Cu heat sink material is a composite of tungsten and copper, with both tungsten low expansion characteristics, but also has copper of high thermal conductivity properties, and the tungsten and copper in the thermal expansion coefficient and thermal conductivity can be adjusted with the W-Cu composition, also the composite can be machined to various shape, these features make the application of this composite with great convenience. The thermal expansion can be adjusted to match with the following material:

(1) Ceramic materials: Al2O3(A-90,A-95,A-99),BeO(B-95, B-99),AlN,etc.;
(2) Semiconductor materials: Si, GaAs, SiGe, SiC, GaP, GaAs, AlGaAs etc.;
(3) Metal Material: Kovar alloy(4J29), 42 alloy;

 
Advantages:
 
1. High thermal conductivity
2. Excellent hermeticity
3. Excellent flatness, surface finish, and size control
4. Semi-finished or finished (Ni/Au plated) products available
5. Low void
 
Product Properties:
 

Grade W Content Density g/cm3

Coefficient of thermal

Expansion ×10-6 (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:
 
They are extensively used as thermal mounting plates, chip carriers, tungsten copper flanges, and frames for RF, light emitting diodes and detectors, laser diode packages like pulse, single emitter, bars and complex carriers for optoelectronics amplifiers, receivers, transmitters, tunable lasers, etc.
 
Product picture:
 


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