Could the AlSiC Surface be Plated with Au?

Yes.

The surface of AlSiC product is covered with a thin layer of aluminum, common cast Al, there is no pick and choose towards plating metal. As long as aluminum is to be plated, the AlSiC can be plated. So, there is no problem about Au plating.

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AlSiC Advantages:

• CTE likes ceramic's, compatible with die and substrate;
• TC better than W-Cu and Al alloy;
• Has strength of Cast Ion, ductility of 45# steel;
• Weight of Aluminum, half weight of Titanium;

AlSiC was early used on radar on warplane to replace W-Cu. New assemblies achieved better performance on thermal dissipation, and 10kg of weight was cut from the total weight of a radar. AlSiC material thus gained attention.

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AlSiC Material Data

One key statistic of AlSiC products

Dome shape of AlSiC IGBT base plate