Connection List

Many leadframes require special bonding: double bonds on some die pads to fingers, stitch bonds, no connect fingers and finger-paddle bonds. In such cases the automatic approach is not viable.

Instead the designer should use a connection list - a simple ASCII file that lists each die pad number and the finger that it should be wired to. The connection list supports double bonds, stitch bonds, downbonds and even finger-paddle bonds.

Sample Connection List

   1   206
   2   205
   2   205
   3   0
   4   204
   4   203
   5   0
   6   202
   7   202
   8   202

Here is an example of using a connection list to wire several die pads to ground. Then the ground fingers are wired to the paddle. This prevents high current from going through a few bond wires.