Patent ID: 6985364
Filing Date: 2006-01-10
Classification: H01L,H05K

Abstract:
1. A voltage converter module formed of multi-layers with resin composite, the module comprising: (a) a first connecting layer of which terminal-surface includes a connecting terminal; (b) a first inner wiring layer being overlaid on an opposite face to the terminal-surface of the first connecting layer and having a wiring pattern to be electrically coupled to the connecting terminal through a first via-hole conductor included in said first connecting layer; (c) a component built-in layer incorporating a voltage converter IC and a peripheral component, and being overlaid on said first inner wiring layer, and including a second via-hole conductor; (d) a second inner wiring layer being overlaid on said component built-in layer, and being electrically coupled to the wiring pattern of said first inner wiring layer through the second via-hole conductor, and having a wiring pattern to be electrically coupled to the voltage converter IC; (e) a second connecting layer being overlaid on said second wiring layer and including a third via-hole conductor; (f) a capacitor-mounted layer being overlaid on said second connecting layer, and being electrically coupled to the wiring pattern of said second inner wiring layer through the third via-hole conductor, and having a wiring pattern where a first capacitor and a second capacitor are electrically coupled to each other; and (g) a capacitor built-in layer being overlaid on said capacitor-mounted layer, and incorporating the first capacitor and the second capacitor, wherein the module includes a circuit, in which the first capacitor and the second capacitor are coupled to each other, between a terminal of the voltage converter IC and a grounding, wherein the terminal of the voltage converter IC is electrically coupled to a terminal of the peripheral component through the wiring pattern of said second inner wiring layer, wherein the voltage converter IC, the first capacitor and the second capacitor are coupled to each other through the wiring pattern of said second inner wiring layer, the third via-hole conductor and the wiring pattern of said capacitor-mounted layer, and wherein the connecting terminal is electrically coupled to a connecting terminal, which is coupled to an external circuit, of the circuit through the first via-hole conductor and the wiring pattern of said first inner wiring layer.