Integrated Solutions Hermetic lids are available in a variety of sizes and designs including our traditional FLA and low cost Microlid TM . The outside dimensions of the lid and preform are usually the same. Clip pressure varies depending on lid size, preform thickness, lid flatness and seal ring flatness. Typical sealing profiles allow for 2-5 minutes above 300 C with a peak temperature not exceeding 340 C in dry nitrogen or hydrogen. A Au overflash is added to cover the edges to insure that one side can be distinguished from the other.
Corrosion resistance increases as Phosphorous level increases.
The above descriptions are of our standard products. Plating and clad properties can be modified to meet specific needs.