Patent ID: 6566610
Filing Date: 2003-05-20
Classification: H01L,H05K,Y10T

Abstract:
An apparatus comprising:a printed circuit board (PCB) having a top side and a bottom side to attach to first pins of a first device to the top side, the top side having first solder pads soldered to the first pins, the bottom side having second solder pads soldered to the plurality of solder bumps; and a plurality of solder bumps on the bottom side and attached to upper areas of second pins of a second device to provide electrical connections between the first pins and the second pins, each of the solder bumps comprising: a first bump soldered to one of the second solder pads to provide a pedestal having a height less than a distance between the bottom side of the PCB and one of the upper areas of one of the second pins, the first bump being provided by a first soldering pass, and a second bump attached between the first bump and a corresponding upper area of one of the second pins of the second device in a second soldering pass to electrically connect the first bump to the one of the second pins.