RF power transistor having an encapsulated chip package
In various embodiments, semiconductor components and methods to manufacture semiconductor components are disclosed. In one embodiment, a method to manufacture semiconductor components includes attaching multiple heat spreaders to a semiconductor wafer. Other embodiments are described and claimed.
1. A discrete radio frequency (RF) power transistor, comprising:
a semiconductor chip;
a gate terminal coupled to the semiconductor chip, a source terminal coupled to the semiconductor chip, a first drain terminal coupled to the semiconductor chip, and a second drain terminal coupled to the semiconductor chip;
a plastic packaging material encapsulating the semiconductor chip, a portion of the gate terminal, a portion of the source terminal, a portion of the first drain terminal, and a portion of the second drain terminal; and
a wire bond to couple the gate terminal to the semiconductor chip, the wire bond having a substantially perpendicular bond angle with respect to a surface of the semiconductor chip to reduce arcing between the semiconductor chip and the wire bond, or to reduce gate-to-drain capacitance, or combinations thereof
wherein the gate terminal is bent to provide a closer and planar contact to the gate interconnect to couple to the wire bond and wherein at least one or more of the first drain terminal or the second drain terminal, or combinations thereof, are substantially unbent and coplanar with an unbent portion of the gate terminal to allow for surface mounting of the discrete RF power transistor on a planar surface, wherein at least two or more terminals are substantially coplanar.
2. The discrete RF power transistor of claim 1 , further comprising a third drain terminal coupled to the semiconductor chip.
3. The discrete RF power transistor of claim 1 , wherein the discrete RF power transistor is a surface mount device (SMD).
4. The discrete RF power transistor of claim 1 ,
wherein the source terminal is a heat spreader;
wherein the heat spreader is rectangular shaped and the semiconductor chip is rectangular shaped; and
wherein a length of the heat spreader is less than a length of the semiconductor chip and a width of the heat spreader is less than a width of the semiconductor chip.
5. The discrete RF power transistor of claim 1 , wherein the semiconductor chip comprises a vertical power transistor having a source region and a drain region that are at opposite surfaces of the semiconductor chip and wherein the source terminal is coupled to the source region and the first and second drain terminals are coupled to the drain region.
6. The discrete RF power transistor of claim 1 , wherein the source terminal comprises a heat spreader, the heat spreader having one or more tips formed thereon to contact the plastic packing material to at least partially increase pull-out resistance of heat spreader from the plastic packing material.