Ceramic Solder Seal Lids - Square

Ceramic Solder Seal lids are a variation of the metal Combo Lid™ which has been a standard in the semiconductor industry for decades.  Our variation of the combo lid features a flat 90% Alumina ceramic cover with a metalized sealing surface along the outer edge. 

The metalized sealing surface is Ni/Au plated and an industry standard preform (80Au/20Sn) is then tacked securely onto the ceramic cover.  The end result is a ceramic lid that can be solder sealed for full hermeticity that also offers the ease of handling of a metal Combo Lid™ with the added benefits of the ceramic materials. 

Some customers that have used these lids state their products meet JAN,JANTX, JANTXV and JANS quality levels per MIL-PRF-19500 and MIL-STD-750*

Advantages of Ceramic Solder Lids:

  • Increased resistance to salt spray corrosion
  • Improved hermetic seal after temp cycling due to matching thermal coefficient of expansion (TCE)
  • Ceramic surface promotes better marking of finished devices
  • Improved protection from XRAY threat

*Spectrum recommends that customers evaluate these lids in their facility for their specific application and qualification requirements.



All dimensions are in inches unless otherwise specified
Don’t see what you are looking for? Please Contact Us as our electronic catalog is dynamic and changes daily