Patent ID: 8338712
Filing Date: 2012-12-25
Classification: H05K,Y10T

Abstract:
1. A multilayer circuit device comprising: a first insulative substrate having a first layer of conductive material affixed to a first side thereof to form a first ground plane; a plurality of elongated metallic first seed layer traces formed on a second side of the first substrate and having transverse widths of approximately 25 microns or less along at least a substantial portion of the length thereof, adjacent ones of said traces being separated from each other by first elongated spaces; and a plurality of elongated first conductive traces bonded to said first seed layer traces and having transverse widths of approximately 25 microns or less along at least substantial portions of the lengths thereof, said portions having a transverse cross section with a height-to-width ratio substantially equal to or exceeding 1, adjacent ones of said first conductive traces being separated from each other by second elongated spaces, at least some of said first conductive traces having opposite ends thereof respectively connected to input and output terminals and being variously useful as ground lines, signal lines and/or power lines.