Metalized Ceramic Housing For Power Semiconductors 

The description of metalized ceramics
We have been supplying a variety of different ceramic grades with metallization, including 95% alumina, 99% alumina, zirconia, beryllia oxides. It makes us unable to meet the different need from different customers.  These
 
The metalized alumina ceramic housings we manufactured are famous for the excellent bonding strength, dense, non-porous ceramic body and vacuum-tight performance, good high-temperature characteristics, and low coefficient of expansion, and so on.

Jointing types:
1.Alumina ceramic base +  Ag plating
2.Alumina ceramic base +  Mo/Mn metallization
3.Alumina ceramic base +  Mo/Mn metallization + Ni plating
4. Alumina ceramic base + Tungsten metalized + Au plating 

Cosmetic quality:
1. The flatness of both end sides must be less than 0,01mm
2.No blister on nickel ( outer) plating at the temperature up to 1150°C
3.No any crack on the surface
4.No any dark spot (  impurities)   on the external surface
5.With evenly glaze distribution  

Application:
Diode, Gas triode, Vacuum thyristor, the X-ray tube, and so on.