PLATE THROUGH MASK FOR GENERATING ALIGNMENT MARKS OF MIM CAPACITORS

摘要

A method of manufacturing a semiconductor device, comprising depositing an insulating layer over a workpiece, and defining a pattern for at least one alignment marks, at least one MIM capacitor, and a plurality of conductive lines within the insulating layer. A resist is formed over the alignment marks and MIM capacitor pattern, and a conductive material is deposited over the wafer to fill the conductive pattern. The wafer is chemically-mechanically polished to remove excess conductive material from over the insulating layer and form conductive lines. The resist is removed from over the alignment mark and MIM capacitor pattern. MIM capacitor material layers are deposited over the wafer, and the wafer is chemically-mechanically polished to form a MIM capacitor, while leaving the topography of the alignment marks visible on the surface of the wafer, so that the alignment marks may be used for alignment of subsequently deposited layers of the semiconductor device.