Patent ID: 7191515

Claim:
A method for manufacturing an interconnected circuit board assembly, the method comprising: fabricating a first circuit board having one or more first bond pads; fabricating a second circuit board having multiple optoelectrical display elements and one or more second bond pads electrically connected to the multiple optoelectrical display elements; placing one or more spacers on the one or more first bond pads of the first circuit board, wherein the one or more spacers are formed of a conductive material that remains in a solid form during attachment of the first circuit board to the second circuit board; aligning the first circuit board with the second circuit board by engaging the spacers with openings in the second circuit board so that the one or more second bond pads of the second circuit board align with the one or more first bond pads, and the one or more second bond pads directly contacting the one or more spacers; attaching the first circuit board to the second circuit board; inserting an insulating material in an interface region between the first circuit board and the second circuit board, wherein inserting the insulating material comprises injecting the insulating material into the interface region by a vacuum fill process after attaching the first circuit board to the second circuit board.