Integrated circuit packaging system with formed interconnects and method of manufacture thereof

1. A method of manufacture of an integrated circuit packaging system comprising:

providing a die paddle having an internal portion with a trench along a perimeter of the die paddle;

forming an interconnect having a concave indentation and an upper portion, the upper portion, opposite the concave indentation, aligned horizontally to the internal portion;

attaching an integrated circuit device on the die paddle, the trench between the integrated circuit device and the perimeter;

attaching an electrical connector to the integrated circuit device and the upper portion; and

applying an encapsulation over the integrated circuit device, the electrical connector, the die paddle, and the interconnect, the concave indentation and non-horizontal curved sides of the interconnect surrounding the concave indentation exposed below the encapsulation.

2. The method as claimed in claim 1 wherein forming the interconnect having the concave indentation includes applying a conductive plating to cover the concave indentation while exposing non-horizontal sides of the interconnect.

3. The method as claimed in claim 1 further comprising applying a conductive plating on a side of the die paddle opposite the internal portion.

4. The method as claimed in claim 1 further comprising attaching a second electrical connector to the integrated circuit device and to a paddle bond site of the die paddle.

5. The method as claimed in claim 1 further comprising attaching a package connector to the concave indention with non-horizontal curved sides of the interconnect exposed from the package connector.