Patent ID: 6712284
Filing Date: 2004-03-30
Classification: H01L,H01Q

Abstract:
A high frequency semiconductor device comprising:a semiconductor substrate; at least one active element formed on said semiconductor substrate; a ground plate connected to a ground potential, said ground plate being provided on said semiconductor substrate; at least one insulating interlayer; a plurality of line conductors provided on said ground plate, with said at least one insulating interlayer provided therebetween; the plurality of line conductors individually acting as a microstrip line combining with said around plate; at least one terminal for connecting to the exterior; and a shield plate provided on a highest layer of the plurality of line conductors, with said at least one insulating interlayer provided therebetween, said shield plate being connected to the ground potential and substantially covering the entirety of said semiconductor substrate except for an area of said at least one terminal.