Patent ID: 6768401
Filing Date: 2004-07-27
Classification: H01L,H01P

Abstract:
A wiring board comprising a laminated waveguide tube having: a pair of conductor layers parallel to the top surface and the underside of at least one dielectric layer of a dielectric substrate having one dielectric layer or a plurality of laminated dielectric layers; and lateral-wall via-hole conductor groups arranged in two rows in a line direction at an interval of less than Â½ of a signal wavelength, said conductor layers being electrically connected to each other by said lateral-wall via-hole conductor groups,a terminal end of said laminated waveguide tube being exposed at a lateral side of said dielectric substrate, thus providing an exposed face, and said dielectric substrate being provided at the bottom thereof in the vicinity of said exposed face with connection pads to be used for mounting said wiring board on the surface of an external circuit board.