Patent ID: 7595250

Claim:
A manufacturing method of a semiconductor device comprising: forming a first insulating film over a semiconductor substrate; forming sequentially a first conductive film, a dielectric film, a second conductive film over the first insulating film; forming a first mask on the second conductive film; etching the second conductive film and the dielectric film into a first pattern shape by using the first mask; removing the first mask; forming the second masks having capacitor upper electrode shape on the second conductive film; etching simultaneously the first conductive film exposed from the dielectric film and the second masks, and the second conductive film having the first pattern shape exposed from the second masks to form capacitor upper electrodes made of the second conductive film; also forming a plate line as a capacitor lower electrode which has a contact region made of the first conductive film, while the dielectric film remains un-etched between the upper electrodes; and wherein the first mask has about a same shape as the plate line.