CERPACK

What’s CerPack?

 

Ceramic Package (CerPack) is a hermetically sealed rectangular ceramic package that has leads extending from both of its longer sides, thus forming two sets of in-line pins. It is therefore a type of dual-in-line package (DIP), like the CerDIP.

Just like the CerDIP, the CerPack’s ceramic body is composed of an upper part called the “cap” and a lower part called the “base”. After the die has been mounted and wire-bonded inside it, the base is sealed with the cap using molten seal glass that solidifies into a moisture-resistant material once it cools down.

The difference between a CerDIP and a CerPack is that the leads of the latter are directly attached to the base (lower half) of the package body. Cerpacks, therefore, no longer need to have a lead frame attached to the base unlike the CerDIP.

CerPack lead counts range from 3 to 40. The lead pitch of a CerPack package is typically 50mils. The table below shows typical nominal value for the dimensions of some examples.