Patent ID: 7176383
Filing Date: 2007-02-13
Classification: H05K,Y10T

Abstract:
1. A printed circuit board comprising: a substantially solid power plane having first and second opposing sides; first and second dielectric layers located on said first and second opposing sides of said substantially solid power plane, respectively; a first signal layer located on said first dielectric layer and including a plurality of substantially parallel signal lines running in at least two directions across said first signal layer from a first side of said printed circuit board to a second side of said printed circuit board, said first signal layer being substantially parallel to said substantially solid power plane; and a second signal layer located on said second dielectric layer and including a plurality of substantially parallel signal lines running in the same said at least two directions as said signal lines of said first signal layer across said second signal layer from said first side of said printed circuit board to said second side of said printed circuit board and of a substantially similar pattern as said signal lines of said first signal layer, said second signal layer also being substantially parallel to said substantially solid power plane, at least a predetermined large portion of the number of signal lines in said first signal layer being aligned with and substantially parallel to a corresponding large portion of said signal lines in said second signal layer, said power plane located substantially between said predetermined portions of said aligned and substantially parallel signal lines to substantially reduce crosstalk between said first and second signal layers.