Patent ID: 8723337

Claim:
A semiconductor device for high-speed electrical signals, comprising: a semiconductor chip having bond pads near a chip edge, the chip assembled on a substrate; the substrate having a metal layer facing the chip, the layer patterned in an array including rows and columns of regularly pitched pads sized as contact pads; a zone within the array comprising a first pair and a parallel second pair of contact pads, and, in a space between the first and the second pair, a single contact pad for ground potential and staggered pairs of pads sized as stitch pads, each stitch pad pair connected to a respective adjacent contact pad pair by parallel and equal-length traces; bonding wires spanning parallel and equal-length arches for connecting a pair of bond pads to a respective pair of stitch pads, thus forming a differential pair of parallel and equal-length conductor lines from bond pad to contact pad; two differential pairs of conductor lines in parallel and symmetrical position, the two differential pairs forming a transmitter/receiver cell for conducting high-frequency signals with integrity.