Patent ID: 6449169
Filing Date: 2002-09-10
Classification: H01L

Abstract:
A BGA Packages which comprises:(a) a substrate having a front side and a back side; (b) a first electrically-conductive ring formed over the front side of the substrate; the first electrically-conductive ring being formed with a line portion and a plurality of toothed portions along the line portion thereof; (c) a second electrically-conductive ring arranged alongside the first electrically-conductive ring; the second electrically-conductive ring being formed with a line portion and a plurality of toothed portions along the line portion thereof and interdigitated with the toothed portions of the first electrically-conductive ring; (d) a plurality of vias penetrating through the substrate, including: a subgroup of first vias which are connected to the toothed portions of the first electrically-conductive ring; and a subgroup of second vias which we connected to the toothed portions of the second electrically-conductive ring; (e) a solder mask formed over the front side of the substrate for electrically masking the first electrically-conductive ring and the second electrically-conductive ring; (f) a semiconductor chip mounted over the front side of the substrate the semiconductor chip having a plurality of first pads and second pads; and (g) a set of bonding wires, including: a subset of first wires for connecting the first pads of the semiconductor chip to the line portion of the first electrically-conductive ring, and a subset of second wires for connecting the second pads of the semiconductor chip to the line portion of the second electrically-conductive ring.