Patent ID: 7700884

Claim:
A method for forming interconnections within a column grid array, the method comprising: casting one or more columns with at least a non-conducting compliant core material that increases flexibility between an electronic component and a printed wiring board by at least a factor of two over metallic-based solder columns; forming the one or more columns to length for interconnecting between the electronic component and the printed wiring board; and forming a conductive material for the one or more columns to provide electrical interconnection between the electronic component and the printed wiring board, wherein the conductive material is the only electrical connection between the electronic component and the printed wiring board, the conductive material comprising one of a group of: at least one copper conductor cast internally within each of the one or more columns, a metallic mesh bonded to and surrounding each of the one or more columns, and a plurality of metallic coils intertwined and extending the length of each of the one or more columns.