Abstract:
The present invention relates to circuit boards and, more specifically, a process for providing electrical connections with reduced via capacitance on circuit boards. In one embodiment, the present invention provides a method for providing an electrical connection between traces disposed on different layers of a circuit board, the method comprising forming in the board a via hole that extends between the different layers and interconnects a pair of electrically conductive traces disposed on the different layers. An inner sidewall of the via hole includes electrically conductive material thereon. The method further comprises removing a first portion of the conductive material from the inner sidewall by removing a first portion of the inner sidewall. A remaining portion of the conductive material on a remaining portion of the inner sidewall interconnects the pair of traces and has a corresponding width that is substantially similar to a width of each trace.
Abstract:
The present invention relates to circuit boards and, more specifically, circuit boards with vias (i.e. via holes) exhibiting reduced via capacitance. In one embodiment, the present invention provides a circuit board comprising a first electrically conductive trace, a second electrically conductive trace, a via hole including electrically conductive material thereon, and a coupling element that electrically connects the first trace to the second trace. The coupling element comprises a segment of the via hole that bridges the first trace and the second trace, wherein the via hole segment is a remainder of the via hole after removal of a portion of the via hole.
Abstract:
The present invention relates to circuit boards and, more specifically, circuit boards with vias (i.e. via holes) exhibiting reduced via capacitance. In one embodiment, the present invention provides a circuit board comprising a first electrically conductive trace, a second electrically conductive trace, a via hole including electrically conductive material thereon, and a coupling element that electrically connects the first trace to the second trace. The coupling element comprises a segment of the via hole that bridges the first trace and the second trace, wherein the via hole segment is a remainder of the via hole after removal of a portion of the via hole.
Abstract:
The present invention relates to circuit boards and, more specifically, a process for providing electrical connections with reduced via capacitance on circuit boards. In one embodiment, the present invention provides a method for providing an electrical connection between traces disposed on different layers of a circuit board, the method comprising forming in the circuit board a via hole that interconnects a first electrically conductive trace and a second electrically conductive trace. The via hole includes electrically conductive material thereon. The method further comprises removing a portion of the electrically conductive material from the via hole.