Patent ID: 7371975
Filing Date: 2008-05-13
Classification: H05K,Y10T

Abstract:
1. An electronic package substrate comprising: a segment of an imprintable tape; the segment having an upper surface to mount an electronic component; the segment having a lower surface; and the segment having a plurality of conductor features in the upper surface and in the lower surface, wherein the plurality of conductor features are formed by imprinting them simultaneously in a conductor region of the imprintable tape encompassing only the segment, wherein the plurality of conductor features include a plurality of vias, and wherein at least a first one of the vias comprises an upper portion formed by imprinting it from the upper surface with a first die of circular cross-section extending into the segment to a depth, wherein the at least first one of the vias further comprises a lower portion formed by imprinting it from the lower surface with a second die of circular cross-section extending into the segment to meet the first die at the depth, and wherein the depth is midway between the upper and lower surfaces.