Patent ID: 7414322
Filing Date: 2008-08-19
Classification: H01L,H05K

Abstract:
1. A routing pattern for high speed signals for a package substrate, the routing pattern comprising: traces for the high speed signals, where trace pairs for differential pairs of high speed signals, contacts for the high speed signals, the contacts connected to the high speed signal traces, where differential pairs of contacts associated with the differential pairs of high speed signals, vias for the high speed signals, the vias connected to the high speed signal traces, where differential pairs of vias associated with the differential pairs of high speed signals, plane metal disposed symmetrically around the high speed vias and the high speed contacts, redundant power vias disposed adjacent a border of the package substrate where an integrated circuit edge is designed to reside, where the redundant power vias connect in a straighter line between contacts on a first side of the package substrate, power planes, and contacts on an opposing second side of the package substrate than do other power vias, and power traces having a width that is greater than a width of the high speed signal traces.