Patent ID: 7507662
Filing Date: 2009-03-24
Classification: H01L

Abstract:
1. A method for manufacturing a ferroelectric memory, the method comprising the steps of: forming an interlayer dielectric layer above a substrate; forming a plug in the interlayer dielectric layer; forming a first and second ferroelectric capacitors on the interlayer dielectric layer, the plug being formed between the first and second ferroelectric capacitors; forming a coating layer that covers each of the ferroelectric capacitors having a first opening section provided between the plurality of ferroelectric capacitors; forming a second opening section that is connected to the first opening section and provided in the coating layer and the interlayer dielectric layer; after forming the plug, the first and second ferroelectric capacitors, the coating layer, and the first and second opening sections, forming a conductive layer in the first and second opening sections and above the coating layer, the conductive layer being directly connected to the plug; and polishing at least the conductive layer.