A power amplifier comprising: power amplifier cells located in a die; conductive contacts overlying a surface of the die and coupled to the amplifier cells; and conductive lines overlying a surface of the die between the conductive contacts and coupled to the power amplifier cells, wherein the conductive lines form part of a transformer circuit of the power amplifier; wherein the conductive contacts are divided into: a first group of conductive contacts (P1-P12) overlying a surface of the die to receive power signals; a second group of conductive contacts (G1-08) overlying the surface of the die to receive ground signals; a third group of conductive contacts overlying the surface of the die to carry data and/or clock signals; and conductive paths extending between the surface and the power amplifier cells, wherein a portion of the first group of conductive contacts (P1-P12) is coupled to at least one of the power amplifier cells through a first portion of the conductive paths, a portion of the second group of conductive contacts (G1-08) is coupled to at least one of the power amplifier cells through a second portion of the conductive paths, and a portion of the conductive lines is coupled to the power amplifier cells through a third portion of the conductive paths, wherein the conductive lines and the third portion of the conductive paths form part of a transformer circuit to combine signals provided by the power amplifier cells; characterized in that the first group of conductive contacts (P1-P12) is located on one side of the surface and the second group of conductive contacts (G1-G8) is located on another side of the surface. power amplifier cells located in a die; conductive contacts overlying a surface of the die and coupled to the amplifier cells; and conductive lines overlying a surface of the die between the conductive contacts and coupled to the power amplifier cells, wherein the conductive lines form part of a transformer circuit of the power amplifier; wherein the conductive contacts are divided into: a first group of conductive contacts (P1-P12) overlying a surface of the die to receive power signals; a second group of conductive contacts (G1-08) overlying the surface of the die to receive ground signals; a third group of conductive contacts overlying the surface of the die to carry data and/or clock signals; and conductive paths extending between the surface and the power amplifier cells, wherein a portion of the first group of conductive contacts (P1-P12) is coupled to at least one of the power amplifier cells through a first portion of the conductive paths, a portion of the second group of conductive contacts (G1-08) is coupled to at least one of the power amplifier cells through a second portion of the conductive paths, and a portion of the conductive lines is coupled to the power amplifier cells through a third portion of the conductive paths, wherein the conductive lines and the third portion of the conductive paths form part of a transformer circuit to combine signals provided by the power amplifier cells; characterized in that the first group of conductive contacts (P1-P12) is located on one side of the surface and the second group of conductive contacts (G1-G8) is located on another side of the surface. a first group of conductive contacts (P1-P12) overlying a surface of the die to receive power signals; a second group of conductive contacts (G1-08) overlying the surface of the die to receive ground signals; a third group of conductive contacts overlying the surface of the die to carry data and/or clock signals; and conductive paths extending between the surface and the power amplifier cells, wherein a portion of the first group of conductive contacts (P1-P12) is coupled to at least one of the power amplifier cells through a first portion of the conductive paths, a portion of the second group of conductive contacts (G1-08) is coupled to at least one of the power amplifier cells through a second portion of the conductive paths, and a portion of the conductive lines is coupled to the power amplifier cells through a third portion of the conductive paths, wherein the conductive lines and the third portion of the conductive paths form part of a transformer circuit to combine signals provided by the power amplifier cells; characterized in that the first group of conductive contacts (P1-P12) is located on one side of the surface and the second group of conductive contacts (G1-G8) is located on another side of the surface.