Advanced Packaging Materials For AlSi Alloys

Advanced Packaging Materials For AlSi Alloys
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Product Details

Product Name

  AlSi alloys(also called controllable expansion alloys);

  AlSi50 alloy(also called Al-50Si controlled expansion alloys). 


Chemical composition

  Aluminum Balance, Silicon content 27% to 70%.


Approval for AlSi alloys

  *Valid for sheet/plate,strip,semifinished products,billets,bars,rods etc.


Comparison with commonly used packaging materials: 

MaterialDensity
g/cm³
CTE
25℃
ppm/ ℃
Thermal Conductivity  25℃ W/mkPlateabillityMachinabilityWeldabilityFormability
Copper8.916385GoodGoodGoodGood
Titanium4.58.917FairFairFairFair
Cast Al60612.723195GoodGoodGoodGood
Kovar8.4615GoodGoodGoodGood
Cu85%W16.46.8180FairFairFairFair
Cu85%Mo106.8165FairFairFairFair
Al65%SiC36.8170PoorPoorPoorPoor
Aluminum-graphite2.57.5/23190PoorGoodPoorGood
AlSi272.617175GoodGoodGoodGood
AlSi502.511.5140GoodGoodGoodGood
AlSi702.437.5120GoodGoodGoodGood


Advanced housing for electronic packaging application:

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