Patent ID: 7692295

Claim:
An integrated circuit package comprising: a substrate including a first layer with electrical traces that partially form an integrated circuit on the substrate and a second layer substantially formed of dielectric material; a first plurality of solder regions at a bottom of the second layer, each region having a cross-sectional area less than a first particular value; a second plurality of solder regions at the bottom of the second layer to provide grounding for a radio transceiver, each region having a cross-sectional area of a value that is different than the first particular value; a first die, including a first integrated circuit, with an array of solder bumps on a first side of the die wherein the solder bumps couple the first integrated circuit to the substrate; a second die, including a second integrated circuit electrically coupled through wire bonds to the integrated circuit on the substrate, mechanically coupled to a second side of the first die that is substantially parallel to the first side of the first die, such that the first die is disposed between the substrate and the second die an antenna electrically coupled to the integrated circuit on the substrate; a third die, including a third integrated circuit, electrically coupled to the second integrated circuit by means of an array of solder bumps, wherein the antenna and the first, the second and the third integrated circuits substantially form the radio transceiver; and the value of each of the second plurality of solder regions after reflow exceeds the first particular value when the substrate is soldered on a printed circuit board.