Patent ID: 6919515

Claim:
In an array of conductive joints between signal pads on a surface of an integrated circuit member of a material having a first thermal responsiveness and corresponding contacts on an aligned wiring support member of a material having a second thermal responsiveness, the improvement comprising: an interface having first and second portions, said first portion of said interface containing an array of elongated conductive joint members, each having a contacting area made up of a length contacting dimension and a width contacting dimension and with said length contacting dimension being longer than said width dimension, and, said second portion of said interface having a contacting area approximating the contacting area of said conductive joint members of said first portion, being so positioned to accommodate expansion mismatch stresses in said conductive joint members, being at least one contacting area positioned orthogonally with respect to said common aligned direction, and being an elongated contact in contact with said surface and a circular contact in contact with said wiring support for each member of said array.