Patent ID: 7856710

Claim:
A method of manufacturing a printed wiring board comprising: preparing a high-dielectric capacitor sheet comprising a ceramic high-dielectric layer sandwiched by an upper electrode sheet and a lower electrode sheet, the upper and lower electrode sheets comprising metal foils; attaching the high-dielectric capacitor sheet to a first insulating layer; forming a through hole for the upper electrode sheet and a through hole for the lower electrode sheet such that the through holes penetrate through the ceramic high-dielectric layer, upper electrode sheet and lower electrode sheet of the high-dielectric capacitor sheet; forming a second insulating layer which fills the through holes for the upper and lower electrode sheets and covers an upper surface of the high-dielectric capacitor sheet; forming an upper electrode connecting first hole opened from the second insulating layer to the upper electrode sheet; forming an upper electrode connecting second hole opened from the second insulating layer to the first insulating layer without exposing the upper electrode sheet, high-dielectric layer and lower electrode sheet to an inner wall of the upper electrode connecting second hole; forming a lower electrode connecting hole opened from the second insulating layer to the first insulating layer such that the lower electrode is exposed to an inner wall of the lower electrode connecting hole without exposing the upper electrode sheet to the inner wall of the lower electrode connecting hole; filling the upper electrode connecting first hole and the upper electrode connecting second hole with a conductive material such that the upper electrode connecting first hole and the upper electrode connecting second hole are connected to each other to form an upper electrode connection portion over the second insulating layer; and filling the lower electrode connecting hole with a conductive material to form a lower electrode connection portion.