Patent ID: 6864577

Claim:
An electronic package, comprising: a flexible substrate having first and second surfaces; a plurality of capture pads and traces disposed on said first surface of said substrate, thereby forming a flexible circuit; a plurality of beveled vias disposed in said substrate and extending between the first and second surfaces thereof, each of said vias having a first opening of a first width in the first surface and a second opening of a second width in the second surface, the second width being greater than the first width, each of said vias being sloped away from said first surface at an angle within the range of about 20° to about 80°; a plurality of conductive plugs, each of said plugs being disposed in one of said vias and terminating in a first plug surface, said plug comprising a first material; a plurality of solder balls, each of said solder balls being disposed on the first surface of one of said plugs and comprising a second material having a lower shear strength than said first material, wherein said first plug surface is disposed between said first and second openings of the via; an integrated circuit disposed on said first surface of said substrate; and a printed circuit board disposed on a second surface of said substrate, said printed circuit board being connected to said second surface, by way of said plurality of solder balls, across a space bounded on a first side by said printed circuit board and bounded on a second side by said second surface.