Patent ID: 7366629
Filing Date: 2008-04-29
Classification: H01F,H01L,H05K

Abstract:
1. A high frequency module board device comprising: a base board comprising a plurality of wiring layers, with an insulating layer between adjacent wiring layers wherein an upper-most wiring layer of the base board provides a build-up surface; and an insulating layer formed over said base board; and a high frequency circuit part having two or more wiring layers with an insulating layer formed between each wiring layer, formed over the build-up surface of the base board; wherein the base board has an area in which wiring is not formed at least at a portion of the upper-most wiring layer located directly below a location at which the height frequency circuit part has a capacitance formed, the capacitance being formed such that an upper electrode and a lower electrode are formed at positions respectively corresponding to the area in which the wiring is not formed, said high frequency module board further comprising at least one ground pattern.