Patent ID: 6797890
Filing Date: 2004-09-28
Classification: H01L,H03H,H05K,Y10T

Abstract:
A method for preparing a high frequency module device comprising:a base substrate forming step for producing a base substrate through a first step of forming a core substrate from an organic material exhibiting thermal resistance and high frequency characteristics, a second step of forming a multi-layer pattern wiring layer on a first major surface of said core substrate and a third step of planarizing an uppermost layer so as to form a high frequency device layer forming surface; and a high frequency device layer forming step of forming passive elements in said high frequency device layer, composed of resistors, capacitors or pattern wiring units, on said high frequency device layer forming surface of said base substrate, by a thin-film or thick-film technique, said passive elements being fed with power or signals from the side base substrate through a dielectric insulating layer.