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AR# 15660

Packaging: Ceramic Brazed (CB) Package - What is the composition of the leadframe? How much tin (Sn) and Gold (Au) do the CB packages have?

Description

Key Words: CB, package, Tin, gold, leadframe

General Description:

How much tin (Sn) and Gold (Au) do the CB packages have?

Solution

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.

AR# 15660
Date Created 09/03/2007
Last Updated 12/15/2012
Status Active
Type General Article