Patent ID: 7088008

Claim:
A flexible chip carrier for use in an electronic package including a chip mounted to a first substrate having a first plurality of conductive solder balls positioned along a surface thereof and defining a first grid area, wherein said first plurality of solder balls are interconnected by a first redistribution circuitry layer to said chip, said chip carrier comprising: a second substrate having upper and lower opposing surfaces and a corner surface region; a plurality of chip connections formed along said upper surface of said second substrate for engaging said first plurality of conductive solder balls; a second plurality of solder balls positioned along said lower surface of said second substrate and defining a second grid area, wherein said second grid area is larger than said first grid area; a second redistribution circuitry layer electrically interconnecting said plurality of chip connections to said second plurality of solder balls; a conductor on said corner surface region; an insulating layer on said corner surface region of said second substrate and on said conductor; and a solder pad on a surface of said insulating layer opposite said conductor, said solder pad being electrically connected to said conductor through an opening in said insulating layer and substantially overlaying said conductor such that if said chip carrier is flexed, cracking of said conductor is inhibited.