ALPHA-PARTICLE PROTECTION IN INTEGRATED CIRCUIT PACKAGES

摘要

A structure for use in the fabrication of integrated circuit packages includes an insulating film having a hole and a plurality of conductors on the film that extend in a cantilevered fashion into the hole and terminate therein such that their ends align with the perimeter of a predetermined area within the hole; and a piece of alpha-particle shielding material has a body which lies within the area and has arms that extend from the body beyond the area and attach to the film or the conductors or both to hold the body in place.