Leadframe systems and related methods

1. A semiconductor package comprising:

a die pad;

a semiconductor die coupled to the die pad, the semiconductor die having a perimeter; and

a leadframe coupled over the die pad and the semiconductor die, the leadframe comprising a solder dam coupled around the semiconductor die, the solder dam comprising an opening having a perimeter greater than the perimeter of the semiconductor die.

2. The semiconductor package of claim 1 , further comprising solder, wherein the solder is configured to be deposited within the solder dam without a spanker.

3. The semiconductor package of claim 2 , wherein the solder is flux-contained.

4. The semiconductor package of claim 1 , wherein the die pad is plated with a metal.

5. The semiconductor package of claim 1 , wherein the die pad, the semiconductor die, and the leadframe are encapsulated in an encapsulant.

6. A method of making a semiconductor package comprising:

providing a die pad;

coupling a leadframe over the die pad, the die pad separate from the leadframe and the leadframe comprising a solder dam having a first perimeter;

depositing solder into the solder dam;

bonding a semiconductor die to the solder within the first perimeter; and

retaining the solder under the semiconductor die using the solder dam.

7. The method of claim 6 , wherein the die pad comprises no groove adjacent to the semiconductor die.

8. The method of claim 6 , further comprising preventing tilt of the semiconductor die through retaining the solder using the solder dam.

9. The method of claim 6 , wherein the first perimeter is greater than a second perimeter of the semiconductor die.

10. The method of claim 6 , wherein the solder dam comprises an opening within the leadframe, the opening having the first perimeter greater than a second perimeter of the semiconductor die.

11. The method of claim 6 , further comprising encapsulating the die pad, the semiconductor die, and the leadframe in an encapsulant.

12. The method of claim 6 , further comprising plating the die pad with a metal.

13. The method of claim 6 , wherein coupling the leadframe over the die pad further comprises passing the die pad through an opening in the leadframe, the opening comprising a solder dam opening.

14. A method of providing a heatsink for a semiconductor package, the method comprising:

providing a leadframe having a solder dam opening therethrough, the leadframe having a first thickness; and

bonding a first heatsink with the leadframe, the first heatsink having a second thickness that is the same as the first thickness;

wherein a volume of the leadframe and the first heatsink is the same as a volume of a leadframe without a solder dam opening therethrough and a second heatsink.

15. The method of claim 14 , wherein the solder dam opening has a perimeter a predetermined distance greater than a perimeter of a semiconductor die, wherein the solder dam opening prevents a flow of solder.

16. The method of claim 14 , wherein no spanker is used after depositing solder into the solder dam opening.

17. The method of claim 14 , wherein a combined thickness of the leadframe and the first heatsink is two-thirds of a combined thickness of the leadframe without the solder dam opening and the first heatsink.

18. The method of claim 14 , further comprising bonding a semiconductor die to solder within a perimeter of the solder dam opening.

19. The method of claim 18 , further comprising encapsulating at least the leadframe in an encapsulant.

20. The method of claim 18 , further comprising preventing tilt of a semiconductor die through retaining the solder with the solder dam opening.