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Address: No. 13, Baofu Road, Tianbao Industrial District, Baodi, Tianjin,China.

TEL: 86-22-29291825

FAX: 86-22-29291821

Email: alsi@baienwei.com

Website: http://www.alsi-alloy.com

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The Advantages Of AlSi Alloys Compared To Kovar
Oct 08, 2016

AlSi70 has similar CTE with Kovar, but the weight is only about 1/3 of Kovar, but thermal conductivity is about 7 times higher than Kovar.

AlSi alloys have been regarded as the alternative to Kovar in many applications.

Baienwei adopts advanced rapid solidification technology to produce aluminum alloys, the materials are homogeneous and stable, widely used in electronics field, such as package housings, carriers, substrates and lids etc, having a better compatibility and heat dissipation to prolong the working life of high power modules.



Material

Density

 g/cm3

 

 CTE

ppm/ºC

 

Thermal Conductivity

 W/mK

 

Plateability

 

Machinability

 

Weldability

     Kovar

8.4

6.0

15

good

good

good

Baienwei Al-50%Si

2.5

11.5

140

good

good

good

Baienwei Al-70%Si

2.43

7.5

120

good

good

good