Patent ID: 8487195
Filing Date: 2013-07-16
Classification: H05K

Abstract:
1. A multi-layer printed circuit board (PCB), comprising: a first conductive pathway formed onto a first substrate; a second conductive pathway formed onto a second substrate; a via structure formed through a third substrate to connect the first conductive pathway to the second conductive pathway; a first closed geometric structure formed onto a surface of the third substrate to enclose the via structure, wherein the first closed geometric structure is electrically isolated from the via structure; and a second closed geometric structure formed onto the surface of the third substrate to enclose the first closed geometric structure, wherein the second closed geometric structure is electrically isolated from the first closed geometric structure, wherein the second closed geometric structure is characterized by a first width and a first thickness, wherein the first width represents a first region from the first closed geometric structure in the third substrate that is free of conductive material, and wherein the first thickness represents a thickness of the second closed geometric structure.