Patent ID: 6489679
Filing Date: 2002-12-03
Classification: H01L

Abstract:
A high-frequency package, comprising a ring-shaped frame,first and second signal lines being formed so as to face each other, with the ring-shaped frame between, in inside and outside regions separated by the ring-shaped frame, and first and second grounds being formed around the first and second signal lines with gaps interposed between in the same plane, respectively, on one main surface side of a dielectric substrate; comprising third signal lines, and a third ground being formed around the third signal lines with gaps interposed in between in the same plane on the other main surface side of the dielectric substrate; wherein first conductive vias for vertically connecting each of one end portions of the first and second signal lines with both end portions of the third signal line are formed; and a plurality of second conductive vias for vertically connecting the first and second grounds with the third ground are formed at prescribed intervals on both sides with the first to third signal lines between.