Patent ID: 7172945
Filing Date: 2007-02-06
Classification: H01L

Abstract:
1. A method for manufacturing a thin film capacitor, in which a thin film capacitor is manufactured by forming, on an insulating substrate, a capacitor structure having a dielectric layer sandwiched between a lower electrode layer and an upper electrode layer, and forming conductor members respectively connected to the lower electrode layer and the upper electrode layer, the method comprising, after the sequential formation on the insulation substrate of films for the lower electrode layer, the dielectric layer and the upper electrode layer, (a) in the case where there is a conductor member penetrating the lower electrode layer, forming the upper electrode layer, the dielectric layer and the lower electrode layer by patterning the films for the upper electrode layer, the dielectric layer and the lower electrode layer together by an ion milling process, or (b) in the case where there is no conductor member penetrating the lower electrode layer, forming the upper electrode layer and the dielectric layer by patterning the films for the upper electrode layer and the dielectric layer together by an ion milling process,