Key Words: CB, package, Tin, gold, leadframe
How much tin (Sn) and Gold (Au) do the CB packages have?
CB package is a Ceramic Brazed package. The leadframe is composed of Kovar with nickel and gold plating. The sealing material is 80% gold and 20% tin.
NOTE: MQ and PQ packages use copper lead frame; this is not restricted to Cu 7025. Other types of copper are also used, including EFTEC 64T, CDA194, CD151, etc.