Patent ID: 6889431
Filing Date: 2005-05-10
Classification: H01L,H05K,Y10T

Abstract:
1. A manufacturing method of an electronic circuit device including a multi-layer circuit board, comprising: forming a capacitor element in which at least a first conductor layer, a dielectric layer and a second conductor layer are formed ally with a multi-layer circuit substrate, said forming the capacitor element comprising: a step of forming the first conductor layer and the dielectric layer on the multi-layer circuit substrate, wherein the dielectric layer is an epitaxial dielectric layer and the multi-layer circuit substrate is an organic polymeric resin circuit substrate, and the epitaxial dielectric lever is deposited on the first conductor lever without exposing the first conductor layer to atmospheric oxygen between forming the first conductor layer and depositing the epitaxial dielectric layer; a step of fabricating the epitaxial dielectric layer into a desired shape; a step of fabricating the first conductor layer into a desired shape; and a step of forming the second conductor layer on the epitaxial dielectric layer.